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TRANSCRIPT
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PREFERRED CASTING MATERIAL APPLICATION
NORTH AMERICA ONLY
TO DETERMINE FORCE/mm: MATERIAL TENSILE (MPa) X METAL THICKNESS DIVIDED BY 1000.
APPLICATION CONDITION "C" "B" "A"
MATERIAL USE FOR CLASS OF DIES
DIE SHOE / RISER STRONG STRUCTURE
WEAK STRUCTURE
G2500
D4512
G2500
D4512
G2500
D4512
DRAW DIE PUNCH WORK UNDER .5 kN FORCE/mm G3500 D6510 D6510
WORK OVER .5 kN FORCE/mm D6510 D6510 D6510
OUTER OVER .5 kN FORCE/mm D6510 D6510 0050A
DRAW DIE BINDER WORK UNDER .5 kN FORCE/mm G3500
WORK OVER .5 kN FORCE/mm D6510 D6510
D6510
D6510
D6510
AND CAVITIES
TRIM DIE LOWER CAP
NO CAP
D6510 0050A CAP
D6510 NOCAP
0050A
TRIM STEELS OR WORK UNDER .5 kN FORCE/mm
WORK OVER .5 kN FORCE/mm
D6510
CC#1
CC#1
CC#1
CC#1
CC#1CAST
WORK OVER .5 kN FORCE/mm
WORK UNDER .5 kN FORCE/mm
CC#1
CC#1 CC#1
BAR S-7
TRIM DIE STRIPPERS
WEAK STRUCTURE
STRONG STRUCTURE G2500
D4512
G2500
D4512
G2500
D4512
FORM AND FLANGE WORK UNDER .5 kN FORCE/mm
WORK OVER .5 kN FORCE/mm
G3500
D6510
G3500
D6510
G3500
D6510
FORM & FLANGE
BAR
CAST
S-7
S-7
S-7
S-7
S-7
S-7INSERTS
FORM & FLANGE PADS WORK UNDER .5 kN FORCE/mm
WORK OVER .5 kN FORCE/mm
G3500
D6510
G3500
D6510
G3500
D6510
CAM DRIVERS D4512 D4512 D4512ALL STRUCTURE
WORK UNDER .5 kN FORCE/mm
WORK OVER .5 kN FORCE/mm
WORK OVER .5 kN FORCE/mm
WORK UNDER .5 kN FORCE/mm
INSERTS
NON-INSERTS
CAM SLIDES
D4512
G3500
D6510
D4512
D6510
D6510
D4512
N/A
N/A
G2500 G2500 G2500
OUTER OVER .5 kN FORCE/mm D6510 D6510 0050A
CAP
OR
NOTE: FOR HIGH STRENGTH PARTS SEE W-DX25-55M PAGES 1 THRU 12
OUTERALUMINUM
G2500
D4512
0050A
0050A
0050A
0050A
0050A
0050A
S-7
S-7
D4512
D4512
0030
D6510
D6510
CALDIE-
CC#1
N/A
N/A
G2500
D4512
EXCEPTION 00300030 0030 0030
N/A
N/A
CC#1
S-7
BLANK STEELS
POST
ALL STRUCTURE
N/A
N/A
ALL STRUCTURE
ALL STRUCTURE
THE MATERIAL TENSILE STRENGTH CAN BE FOND ATwww.ss.ford.com/departments/stamping/atme/stmp_lab/stmp_lab.htm
CC#1
BAR INSERT
LOWER POSTG2500
ALL SO SEE W-DX25-50MPAGE 4
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TRIM, PIERCE AND AERIAL CAM TRIMPREFERRED CASTING MATERIAL APPLICATION
NORTH AMERICA ONLY
TYPICAL SECTION
STRONG STRUCTURE
WEAK STRUCTURE
WORK UNDER .5 kN FORCE/mm
WORK UNDER .5 kN FORCE/mm
STRIPPER PAD
TRIM STEELS
DIE SHOE UPPER
TRIM STEELS
APPLICATION
(BAR)
(CAST)
CONDITIONMATERIAL USE FOR CLASS OF DIES
"A"
CC #1
NO CAPD6510
"C"
D6510
G2500
D4512
D4512
G2500
G2500
D4512
G2500
D4512
"B"
G2500
D4512
D4512
G2500STRONG STRUCTURE
WEAK STRUCTURE
LOWER CAP
CC #1
CC #1
NON-INSERTS
CAM DRIVERNOT SHOWN
G3500 D6510 N/A
D4512 D4512 D4512
ALUMINUM OUTER
G2500
D4512
N/A
D4512ALL STRUCTURE
CALDIE- BAR
EXCEPTION 0030 0030 0030
G2500
D4512
0030
CC #1 CC #1
CC #1
LOWER DIE SHOE TO BE G2500 WHEN CAP IS USED.
NOTE: FOR HIGH STRENGTH PARTS
SEE W-DX25-55M PAGES 1 THRU 12.
CAPD6510 NO
OR0050A CAP
0050A
CAP
UPPER/LOWER
ON TOP OFG2500 SHOE
INSERTALL STRUCTURE
WORK UNDER .5 kN FORCE/mm
CAM SLIDE NOT SHOWN
INSERTS
WORK UNDER .5 kN FORCE/mm G2500 G2500 G2500 D4512
CC #1
G2500LOWER POST
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*
*
*
CASTING CALL OUT TO DESIGNATE UNDERLINED PORTION OF SAE NUMBER ONLY.
FOR PANELS MADE OF MILD STEELCASTINGS MATERIAL LIST AND USAGE
CASTING
RESISTINGSTEEL
WEAR
AISI-D2
.30 CARBON
CASTING
RESISTING
NODULARFERRITIC
HARDENING
STEEL
WEAR
CAST STEEL
ALLOYFLAME
IRON
AISI-S7
85 KSI. MIN.TENSILE STRENGTH
SAE-J435c/0050A
60 KSI. MIN.TENSILE STRENGTHSAE-J434c/D4512
HARDENING
IRON FORNODULARPEARLITIC
CASTINGSHARDENING
GRAY IRON
FLAME
FLAME
ALLOY
MAX.
80 KSI. MIN.
SAE-J434c/D6510
STRENGTHTENSILE
SAE-J431/G3500
STRENGTHTENSILE
45 KSI. MIN.
STRENGTH65 KSI. MIN.
*
CASTINGS
LOW CARBON
MATERIAL
STEEL
IRONCASTGRAY
SAE-J435c/0030
SAE-J431/G2500
FORD NUMBER
STRENGTH
TENSILE
30 KSI. MIN.
*
TENSILE*
USE D2 BAR STOCK FOR SECTIONS WITH SLIGHT CONTOURSEVERE DRAW CONDITIONS (ON APPROVAL ONLY).INSERTS FOR HIGH PRESSURE WEAR AREAS WITHUPPER FLANGE SECTIONS - WIPE ONLY.
Rc 58-62 "N"
USE AISI-S7 BAR STOCK FOR SECTIONS WITH SLIGHT
45` FORM AND FLATTEN HEM FLANGE DIE SECTIONS
WHERE STRENGTH AND TOUGHNESS ARE REQUIRED.DIE SHOES, PUNCH SHOES, PADS, SPECIAL ADAPTORS
REQUIRING ADDED STRENGTH.MALE DRAW PUNCHES FOR DRAW DIE RINGS
RESTRIKE SECTIONS.
WITH SUFFICIENT SHAPE.
CONTOUR.
FORM HEM FLANGE & FLATTEN HEM FLANGE BUCKS.
FOR ULTIMATE STRENGTH SAE-J435c/0050A CAN BEREQUIRED.
LOWER INSERTS, DRAW PUNCHES IF TOUGHNESS ISINVERTED OR CONVENTIONAL DRAW DIE RINGS,
AND DRAW PUNCHES.DRAW DIE BINDER RINGS, LOWER INSERT,
FLANGE DIE PADS (ALSO IDEAL FOE EDM PROCESS).
IDEAL FOR EDM PROCESS: SEE W-DX12-10M.
HARDENED BUCK.FLANGE DIE BUCK- WHEN FLANGING ON FLAME
STRENGTH, TOUGHNESS & WELD ABILITY ARE DESIRED.THIRD ACTION DRAW DIES. USE IF HIGH YIELD
USED WITH APPROVAL.
REQUIRED.
Rc 55 - 56
1725` F
Rc 56-58TEMPERDOUBLEHIGH HEAT
"NA"
TOHARDENED FLAME
HARDENED FLAMECANNOT BE
Rc 54-58
IH
TOHARDENEDINDUCTION
Rc 58 MIN. TOHARDENED FLAME
HARDENEDOR "U" SHAPE. CAM DRIVERS FOR MECHANICALENGINEERING CHANGES. CAM SLIDES WITH WINGSPIERCE DIE PADS AND BUCKS SUBJECT TO MANY
HARDENING IS NOT REQUIRED.USE WHEN CROSS SECTION IS SUFFICIENT AND FLAMERISERS, CAM SLIDES WITH HIGH COMPRESSIVE LOADS.PUNCH AND DIE SHOES, TRIM DIE PADS, ADAPTORS,
USAGE
HARDENED
FLAMECANNOT BE
FLAMENOT TO BE
HEAT TREAT
WHEN GREATER STRENGTH THAN SAE-J431/G3500 IS
WHENEVER FLAME HARDENING MATERIAL IS USED, IT IS THE DESIGN SOURCE'S RESPONSIBILITY TOSPECIFY FLAME HARDENING IS REQUIRED IN THE REMARKS COLUMN OF THE ESP REPORT.
WAS D5506
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DIE ENGINEERING APPROVALUSE OF D2 STEEL, REQUIRES
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SPECIFICATION FOR PROPRIETARY CASTING MATERIALSNORTH AMERICA ONLY
ALLO
YE
D C
AS
T S
TEE
L SU
ITAB
LE FO
R S
UR
FAC
E H
AR
DE
NIN
G O
R TH
RO
UG
H H
AR
DE
NIN
G
DR
AW
DIE
CA
PS
US
ED
WITH
THE
M2 W
ELLE
D P
RO
CE
SS
CO
NTA
CT
BO
HLE
R-U
DD
EH
OLM
FOR
DE
TAILE
D S
PE
CIFIC
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NS
MIC
RO
STR
UC
TUR
EC
HE
MIS
TRY
ME
CH
AN
ICA
L P
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DE
SC
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CA
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O
TRA
DE
NA
ME
HE
AT TR
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TC
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DITIO
NA
S D
ELIV
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RD
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PR
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UR
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STE
NITIZE
WITH
IND
UC
TION
. M
AS
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NC
H55 R
c MIN
.
AP
PLIC
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N
AN
NE
ALE
D190-230 B
HN
CA
RM
O
ALLO
YE
D C
AS
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TEN
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PE
R,
56-60 Rc
CA
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UR
FAC
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AR
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AR
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NIN
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TRIM
DIE
CA
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CO
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TEN
ITIZE W
ITH IN
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SS
QU
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CH
SIN
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TEM
PE
R,
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CA
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FOR
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D S
PE
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NS
QU
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AN
DTR
AP
PE
R280-340 B
HN
AU
STE
NITIZE
WITH
IND
UC
TION
. A
IR Q
UE
NC
HS
ING
LE TE
MP
ER
,56-60 R
c
CA
ST
CU
T #1A
LLOY
ED
CA
ST
STE
EL S
UITA
BLE
FOR
SU
RFA
CE
HA
RD
EN
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.
CO
NTA
CT
MP
D W
ELD
ING
FOR
DE
TAILE
D S
PE
CIFIC
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NS
AU
STE
NITIZE
WITH
IND
UC
TION
AIR
QU
EN
CH
SIN
GLE
TEM
PE
R55-60 R
c
TRIM
STE
ELS
QU
EN
CH
AN
DTE
MP
ER
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N
CA
ST
CU
T #1
ALLO
YE
D C
AS
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L SU
ITAB
LE FO
R S
UR
FAC
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AR
DE
NIN
G.
TRIM
PO
ST C
AP
S
CO
NTA
CT
MP
D W
ELD
ING
FOR
DE
TAILE
D S
PE
CIFIC
ATIO
NS
NO
RM
ALIZE
AN
D TE
MP
ER
280-340 BH
N
AU
STE
NITIZE
WITH
IND
UC
TION
MA
SS
QU
EN
CH
55 Rc M
IN.
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SPECIFICATION FOR PROPRIETARY WROUGHT MATERIALS A.K.A. BAR STOCKNORTH AMERICA ONLY
ALLO
YE
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RO
UG
HT
STE
EL S
UITA
BLE
FOR
SU
RFA
CE
HA
RD
EN
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OR
THR
OU
GH
HA
RD
EN
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LOW
ER
TRIM
INS
ER
TS M
AN
UFA
CTU
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D A
T D
EA
RB
OR
N TO
OL A
ND
DIE
OR
LOW
ER
TRIM
INS
ER
TS W
ITH TH
IN C
RO
SS
SE
CTIO
NS
PR
ON
E TO
BR
EA
KA
GE
CO
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FOR
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NA
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EA
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NA
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ER
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QU
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AN
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PR
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US
TEN
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ITH IN
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NA
IR Q
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NC
HS
ING
LE TE
MP
ER
58-62 Rc
AP
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N
CA
ST
CU
T #1
CA
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IN FU
RN
AC
EA
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ING
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MP
ER
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EN
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FOR
DE
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PE
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NS
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STE
NITIZE
IN FU
RN
AC
EA
IR Q
UE
NC
HS
ING
LE TE
MP
ER
60-62 Rc
QU
EN
CH
AN
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MP
ER
30-36 Rc
ALLO
YE
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RO
UG
HT
STE
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BLE
FOR
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CE
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.
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WITH
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EN
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GLE
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PE
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c
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NE
ALE
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HN
CO
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ING
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DE
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PE
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.
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NEXT PAGE --><-- PREVIOUS PAGE
MATERIAL AND HEAT-TREAT SPECIFICATIONS
A-2 IS A GENERAL PURPOSE, AIR-HARDENING TOOL STEEL. IT HAS A WIDE RANGE OF TOOLING APPLICATIONSWITH MORE ABRASION RESISTANCE THAN THE "S" SERIES SHOCK STEELS AND BETTER TOUGHNESS AND DUCTILITYTHAN THE "D" SERIES WEAR STEELS. WHEN PROPERLY ANNEALED, A-2 HAS A MACHINABILITY RATING OF 60 ASCOMPARED WITH A 1% CARBON STEEL RATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE, VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT TO 1650 F, SOAK TWO HOURS PER INCH OF THICKNESS. COOL 40 F PER HOUR TO 900 F. o o o
AIR COOL TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS 235 HB MAX.
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1200-1250 F. SOAK TWO HOURS PER INCH o
OF THICKNESS AT HEAT. SLOW COOL, (FURNACE COOL IF POSSIBLE), TO ROOM TEMPERATURE.
3. PREHEAT: HEAT TO 1200 F, AND HOLD AT THIS TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1750-1800 F, SOAK AT HEAT FOR 45-60 MINUTES PER INCH OF GREATEST THICKNESS.o
5. QUENCH: AIR QUENCH TO 150 F. TEMPER IMMEDIATELY.o
6. TEMPER: DOUBLE TEMPER IS MANDATORY, THREE TEMPERS ARE SOMETIMES PREFERRED. SOAK FOR TWO HOURS PER INCH OF THICKNESS AT HEAT. SLOW COOL TO ROOM TEMPERATURE BETWEEN TEMPERS.
7. OPTIONAL SUB-ZERO TREATMENT: FOLLOWING AN INITIAL TEMPER (NEVER AS A CONTINUATION OF THE QUENCH), SOAK AT SUB-ZERO TEMPERATURE FOR TWO HOURS PER INCH OF THICKNESS AND SLOWLY BRING BACK TO ROOM TEMPERATURE. TEMPER AFTER SUB-ZERO TREATMENT.
8. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, WELDING OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER o
THAN THE LAST TEMPERING TEMPERATURE USED.
TEMPERING ROCKWELL C
AS QUENCHED
400 Fo
500 Fo
600 Fo
800 Fo
1 IN. SPECIMENS WERE QUENCHED FROM 1775 F.O/ o
64
60
56
56
56
TEMPERING ROCKWELL C
1000 Fo
1100 Fo
1200 Fo
1300 Fo
56
56
50
43
34
900 Fo
1. 2.
3.
4.
5.
6. 6. 6. 8.
7.
A-2 TOOL STEEL C 1.00 Mo 1.00 Cr 5.00 V 0.20
12 APRIL 1996
WELDING: WHEN WELDING AISI A-2 IN THE ANNEALED OR HARDENED CONDITION USE AN A-2 WELD ROD. PREHEAT AND POSTHEAT ANNEALED STEELS AT 400-900 F, HARDENED STEELS TO 400-500 F. MAINTAIN THE o o
PREHEAT TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER HARDENED STEELS 25-50 F BELOW o
THE LAST TEMPERING TEMPERATURE USED AFTER WELDING. THE RESULTING HARDNESS SHOULD BE HRC 56-58 WHEN USING THE A-2 TYPE ROD.
PRINTED COPY ISUNCONTROLLED
NEXT PAGE --><-- PREVIOUS PAGE
D-2 IS A HIGH CARBON, HIGH CHROMIUM, AIR-HARDENING TOOL STEEL. IT WAS FORMULATED TO COMBINE EXCELLENT ABRASION RESISTANCE AND AIR-HARDENING CHARACTERISTICS. D-2 HAS BECOME THE TOOL AND DIE STANDARD AGAINST WHICH OTHER TOOL STEELS ARE MEASURED FOR ABRASION RESISTANCE, DIMENSIONAL STABILITY IN HARDENING AND AIR-HARDENING CHARACTERISTICS. WHEN PROPERLY ANNEALED, D-2 HAS A MACHINABILITY RATING OF 45 AS COMPARED TO A 1% CARBON STEEL RATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE,VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT TO 1650 F, SOAK 1-1/2 HOURS PER INCH OF THICKNESS. COOL 20 F PER HOUR TO 900 F.o o o
COOL DOWN WITH FURNACE TO ROOM TEMP. ANNEALED HARDNESS 220 MAX. BRINELL.
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1200-1250 F. SOAK TWO HOURS PER INCH OFo
THICKNESS AT HEAT. SOAK, SLOW COOL (FURNACE COOL IF POSSIBLE) TO ROOM TEMPERATURE.
3. PREHEAT: HEAT TO 1250 F, HOLD AT THIS TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1850 F, SOAK AT HEAT FOR 45-60 MINUTES PER INCH OF THICKNESS. FOR A HIGHLYo
ALLOYED MATERIAL AS D-2, IT IS IMPORTANT TO SOAK MATERIAL SUFFICIENTLY LONG TO GET ALL OF THE ELEMENTS INTO SOLID SOLUTION DURING THE AUSTENITIZE. PROPER RESPONSE TO HEAT TREATMENT WILL DEPEND ON THIS. THEREFORE, FOR ITEMS UNDER ONE INCH IN THICKNESS, SOAKING TIME SHOULD BE 45-60 MINUTES MINIMUM.
5. QUENCH: AIR QUENCH TO 150 F. TEMPER IMMEDIATELY.o
6. TEMPER: DOUBLE TEMPER IS MANDATORY, THREE TEMPERS ARE SOMETIMES PREFERRED. SOAK FOR TWO HOURS PER INCH OF THICKNESS AT HEAT. AIR COOL TO ROOM TEMP. BETWEEN TEMPERS. DOUBLE TEMPER AT THE RANGE OF SECONDARY HARDNESS, 900-960 F STRONGLY RECOMMENDED.o
7. OPTIONAL SUB-ZERO TREATMENT: FOLLOWING AN INITIAL TEMPER (NEVER AS A CONTINUATION OF THE QUENCH), SOAK AT SUB-ZERO TEMPERATURE FOR TWO HOURS PER INCH OF THICKNESS AND SLOWLY BRING BACK TO ROOM TEMPERATURE. TEMPER AFTER SUB-ZERO TREATMENT.
8. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, WELDING OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWERo
THAN THE LAST TEMPERING TEMPERATURE USED.
TEMPERING ROCKWELL C
AS QUENCHED
400 Fo
500 Fo
600 Fo
700 Fo
SPECIMENS WERE AIR QUENCHED FROM 1850 F.o
64
60
58
58
58
TEMPERING ROCKWELL C
900-960 Fo
1000 Fo
1100 Fo
1200 Fo
57
58/60
56
48
40
800 Fo
1. 2.
3.
4.
5.
6. 6. 6. 8.
7.
C 1.55 Mo 0.80 Cr 11.50 V 0.90D-2 TOOL STEEL MATERIAL AND HEAT-TREAT SPECIFICATIONS
APRIL 1996 13
WELDING: WHEN WELDING AISI D-2 IN THE ANNEALED OR HARDENED CONDITION USE AN A-2 WELD ROD. PREHEATAND POSTHEAT ANNEALED AT 400-900 F, AND HARDENED STEELS 900-950 F. MAINTAIN THE PREHEAT TEMP. ASo o
THE INTERPASS TEMPERATURE. DOUBLE TEMPER HARDENED STEELS 25-50 F BELOW THE LAST TEMPERINGo
TEMPERATURE USED AFTER WELDING. THE RESULTING HARDNESS SHOULD BE HRC 56-60 WHEN USING THE A-2 TYPE ROD.
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M-2 MOLYBDENUM HIGH SPEED STEEL IS A GENERAL PURPOSE HIGH SPEED STEEL WHICH HAS BALANCED ABRASION, SHOCK RESISTANCE AND GOOD RED HARDNESS. WHEN PROPERLY ANNEALED, M-2 HAS A MACHINABILITY RATING OF 50 WHEN COMPARED TO A 1% CARBON STEEL RATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE, VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT TO 1600 F, SOAK THOROUGHLY AT HEAT. FURNACE COOL 25 F PER HOUR TO 900 F, AIR COOLo o o
TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS 241 MAX. BRINELL.
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1200-1250 F. SOAK TWO HOURS PER INCH OFo
THICKNESS AT HEAT. SLOW COOL (FURNACE COOL IF POSSIBLE) TO ROOM TEMPERATURE.
3. PREHEAT: HEAT SLOWLY TO 1550 F, HOLD UNTIL THOROUGHLY SOAKED, HEAT TO 1850 F, SOAK THOROUGHLY.o o
4. HARDEN: TOTAL HEATING TIME IN THE FURNACE VARIES FROM A FEW MINUTES TO A MAX. OF 15 MINUTES, DEPENDING ON THE SIZE OF THE TOOL, THE RELATIVE HEAT CAPACITY OF THE FURNACE AND THE SIZE OF THE CHARGE. HEAT TO 2150-2200 F FOR MAXIMUM TOUGHNESS AND MINIMUM DISTORTION. HEAT TO o
2250-2275 F FOR MAXIMUM HARDNESS AND ABRASION RESISTANCE.o
5. QUENCH: TO DEVELOP FULL HARDNESS, OIL QUENCHING TO 150-200 F IS PREFERRED. FOR AIR o
QUENCHING, QUENCH TO 150 F. FOR SALT QUENCHING THE HOT SALT SHOULD BE MAINTAINED JUST ABOVE o
THE MS TEMPERATURE. AFTER EQUALIZING, PARTS SHOULD BE WITHDRAWN FROM THE SALT AND AIR COOLED TO 150 F. TEMPER IMMEDIATELY.o
6. TEMPER: DOUBLE TEMPER IS MANDATORY, THREE TEMPERS ARE PREFERRED. SOAK FOR TWO HOURS PER INCH OF THICKNESS. AIR COOL TO ROOM TEMPERATURE BETWEEN TEMPERS. THE BEST TEMPERING RANGE FOR M-2 IS 1000-1050 F. THIS RESULTS IN THE BEST COMBINATION OF CUTTING ABILITY, HARDNESS, STRENGTH o
AND TOUGHNESS.
7. OPTIONAL SUB-ZERO TREATMENT: FOLLOWING AN INITIAL TEMPER (NEVER AS A CONTINUATION OF THE QUENCH), SOAK AT SUB-ZERO TEMPERATURE FOR TWO HOURS PER INCH OF THICKNESS AND SLOWLY BRING BACK TO ROOM TEMPERATURE. TEMPER AFTER SUB-ZERO TREATMENT.
8. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER o
THAN THE LAST TEMPERING TEMPERATURE USED.
TEMPERING ROCKWELL C
AS QUENCHED
400 Fo
500 Fo
600 Fo
700 Fo
1 IN. SPECIMENS WERE AIR QUENCHED FROM 2250 F.O/ o
64
63
62.5
62.5
62.5
TEMPERING ROCKWELL C
1000 Fo
1050 Fo
1100 Fo
1150 Fo
64
65.5
63.5
61.5
60
900 Fo
1. 2.
3.
4.
5.
6. 6. 6. 8.
7.
M-2 HIGH SPEED STEEL C 0.83 Cr 4.15 Mo 5.00 V 1.90 W 6.35
MATERIAL AND HEAT-TREAT SPECIFICATIONS
800 Fo 63.5 1200 Fo 53
14 APRIL 1996
WELDING: WHEN WELDING AISI M-2 IN THE ANNEALED OR HARDENED CONDITION USE AN M-2 WELD ROD. PREHEAT AND POSTHEAT ANNEALED STEEL AT 950-1200 F, AND HARDENED STEEL AT 950-1050 F. MAINTAIN THE o o
PREHEAT TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER HARDENED STEELS 25-50 F BELOW o
THE LAST TEMPERING TEMPERATURE USED AFTER WELDING. THE RESULTING HARDNESS SHOULD BE HRC 58-62 WHEN USING THE M-2 TYPE ROD.
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PRINTED COPY IS UNCONTROLLED
S-7 IS A SHOCK RESISTING TOOL STEEL WITH EXCELLENT IMPACT PROPERTIES-UNNOTCHED CHARPY IMPACT STRENGTH OF 180 FT-LB. AT HRC 58. BECAUSE IT IS AN AIR-HARDENING STEEL, IT IS SAFE AND STABLE INHEAT TREATMENT. S-7’S MOST IMPORTANT CHARACTERISTIC IS ITS VERSATILITY. IT IS USED WIDELY FOR MEDIUM COLD WORK TOOLS AND DIES, PLASTIC-MOLDING DIES, SHEAR BLADES, MEDIUM HOT WORK DIES, MASTER HOBS AND PARTS OF MANY PRODUCTS. WHEN PROPERLY ANNEALED, S-7 HAS A MACHINABILITY RATING OF 70 AS COMPARED TO A 1% CARBON STEEL RATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE,VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT 1550 F, SOAK FOR 1-1/2 HOURS PER INCH OF THICKNESS. COOL 25 F PER HOUR TO 900 F. AIRo o o
COOL TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS 230 MAX. BRINELL.
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1250 F. SOAK FOR TWO HOURS PER INCH OFo
THICKNESS AT HEAT. SLOW COOL (FURNACE COOL IF POSSIBLE) TO ROOM TEMP.
3. PREHEAT : HEAT 1050 TO 1250 F, HOLD AT THIS TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1725 F, SOAK AT HEAT FOR 45-60 MINUTES PER INCH OF THICKNESS. SIZES UNDER 1 IN.o
THICK SHOULD BE HELD FOR 45-60 MINUTES MINIMUM.
5. QUENCH: AIR QUENCH TO 150 F. FLASH OIL QUENCHING IS SOMETIMES USED FOR SECTIONS WITH A THICKNESSo
OF 2-1/2 IN. OR GREATER. TEMPER IMMEDIATELY AFTER QUENCHING IN ALL CASES.
6. TEMPER: DOUBLE TEMPER IS MANDATORY, THREE TEMPERS ARE SOMETIMES PREFERRED. SOAK FOR TWO HOURS PER INCH OF THICKNESS FOR EACH TEMPER. AIR COOL TO ROOM TEMPERATURE BETWEEN TEMPERS. FOR COLD WORK APPLICATIONS, THE NORMAL TEMPERING RANGE IS 400-500 F. FOR HOT WORK APPLICATIONS, A TEMPERINGo
TEMPERATURE OF 900-1000 F IS SUGGESTED. NEVER TEMPER S-7 UNDER 400 F. o o
7. OPTIONAL SUB-ZERO TREATMENT: FOLLOWING AN INITIAL TEMPER (NEVER AS A CONTINUATION OF THE QUENCH), SOAK AT SUB-ZERO TEMPERATURE FOR TWO HOURS PER INCH OF THICKNESS AND SLOWLY BRING BACK TO ROOM TEMPERATURE. TEMPER AFTER SUB-ZERO TREATMENT.
8. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER THAN THEo
LAST TEMPERING TEMPERATURE USED.
TEMPERING ROCKWELL C
400 Fo
500 Fo
600 Fo
700 Fo
1 IN. SPECIMENS, THREE IN. LONG WERE AIR-HARDENED FROM 1725 F.O/ o
58/60
58
56
55
54
TEMPERING ROCKWELL C
1000 Fo
1100 Fo
1200 Fo
53
51
47
38
800 Fo
1. 2.
3.
4.
5.
6. 6. 6. 8.
7.
S-7 TOOL STEEL MATERIAL AND HEAT-TREAT SPECIFICATIONS
900 Fo 52
C 0.50 Si 0.25 Mn 0.70 Cr 3.25 Mo 1.40
AS QUENCHED
SEPT. 1999 15
WELDING: WHEN WELDING AISI S-7 IN THE ANNEALED OR HARDENED CONDITION USE AN S-7 WELD ROD. PREHEATAND POSTHEAT ANNEALED STEELS AT 400-900 F, HARDENED STEELS AT 400-500 F. MAINTAIN THE PREHEATo o
TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER HARDENED STEELS 25-50 F BELOW THE LASTo
TEMPERING TEMPERATURE USED AFTER WELDING. THE RESULTING HARDNESS SHOULD BE HRC 54-58 WHEN USINGTHE S-7 TYPE ROD.
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1060 STEEL IS A VERSATILE HIGH CARBON STEEL. 1060 DEVELOPS AN AS-QUENCHED (WATER) HARDNESS OF 58/60HRC. WHEN PROPERLY HEAT TREATED, 1060 HAS A CARBON-RICH MARTENSITIC STRUCTURE WITH NO FREE CARBIDE.1060 STEEL HAS VERY GOOD FLAME HARDENING CHARACTERISTICS. IF HEATED WITH AN OXYACETYLENE TORCH LONG ENOUGH FOR THE STEEL TO DEVELOP A CHERRY RED COLOR, (ABOUT 1500 F), FOLLOWED IMMEDIATELY BY o
A WATER QUENCH, THE RESULTING HARDNESS WILL BE 55-60 HRC. WHEN PROPERLY ANNEALED, 1060 HAS A MACHINABILITY RATING OF 140 WHEN COMPARED TO A 1% CARBON STEEL RATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE, VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT 1525 F, SOAK UNTIL UNIFORMLY HEATED, APPROXIMATELY 30 MINUTES PER INCH. FURNACE o
COOL 50 F PER HOUR TO 975 F, AIR COOL TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS o o
200 MAX. BRINELL. NORMALIZE: HEAT TO 1625 F, AIR COOL.o
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1200-1250 F. SOAK FOR TWO HOURS PER o
INCH OF THICKNESS AT HEAT. SLOW COOL (FURNACE COOL IF POSSIBLE) TO ROOM TEMP.
3. PREHEAT: HEAT TO 1200 F, HOLD AT THIS TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1500 F. SOAK AT HEAT FOR 30 MINUTES PER INCH OF THICKNESS. o
5. QUENCH: THIS MATERIAL MAY BE WATER QUENCHED, BUT BRINE QUENCHING IS PREFERRED. WATER OR BRINE QUENCH TO 150-200 F. OIL QUENCHING IS SOMETIMES USED FOR LIGHT SECTIONS (UNDER 1/4 IN.) AND o
WHERE MAX. HARDNESS IS NOT REQUIRED. TEMPER IMMEDIATELY AFTER QUENCHING.
6. TEMPER: NORMALLY WATER HARDENING STEELS NEED BE SINGLE TEMPERED ONLY. HOWEVER, DOUBLE TEMPERING MAY SOMETIMES BE PREFERRED. SOAK AT HEAT FOR TWO HOURS PER INCH OF THICKNESS FOR EACH TEMPER. AIR COOL TO ROOM TEMPERATURE BETWEEN TEMPERS. THE AS-QUENCHED HARDNESS OF THIS GRADE IS 58-60 HRC.
7. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER o
THAN THE LAST TEMPERING TEMPERATURE USED.
1. 2.
3.
4.
5.
6. 6. 7.
1060 STEEL MATERIAL AND HEAT-TREAT SPECIFICATIONS
C 0.55-0.65 Mn 0.60-0.90 P 0.040 MAX. S 0.050 MAX.
16 APRIL 1996
AS QUENCHED
400 Fo
500 Fo
600 Fo
TEMPERING ROCKWELL C
63-65
56
TEMPERING
1000 Fo
38
ROCKWELL C
800 Fo
900 Fo
1 IN. SPECIMENS WERE WATER QUENCHED FROM 1475-1500 F.O/ o
WELDING: WHEN WELDING ANNEALED AISI 1060 USE AN AISI W-2 WELD ROD. PREHEAT AND POSTHEAT AT 400-900 F.o
REANNEAL BEFORE HARDENING. WHEN WELDING 1060 IN THE FLAME HARDENED CONDITION USE AN AISI S-7 ROD FOR TRIM AND H-12 TYPE ROD FOR FLANGE APPLICATIONS. PREHEAT AND POSTHEAT AT 400-500 F. MAINTAIN o
THE PREHEAT TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER AFTER WELDING AT 250-400 F. o
THE RESULTING HARDNESS SHOULD BE HRC 54-58 WHEN USING THE S-7, 52-54 HRC WHEN USING THE H-12 ROD.
700 Fo
55
50
42
1100 Fo
1200 Fo
37
35
33
26
FLAME HARDENING: HEAT TO A CHERRY RED COLOR (APPROXIMATELY 1500 F) FOLLOWED WITH A WATER OR o
POLYMER QUENCH. AN OUTER CASE OF 55-60 HRC WILL RESULT, WITH A SOFT DUCTILE INNER CORE.
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4150 ALLOY STEEL IS A MEDIUM CARBON ALLOY STEEL ANNEALED TO A HARDNESS OF APPROXIMATELY 220 HB.4150 ANNEALED IS AN EXCELLENT GENERAL PURPOSE GRADE PROVIDING ALL AROUND TOUGHNESS, HIGH MECHANICALPROPERTIES AND GOOD MACHINABILITY. 4150 CAN BE HEAT TREATED TO HIGH LEVELS OF HARDNESS WHENDESIRED. THIS MATERIAL HAS A MACHINABILITY RATING OF 110 AS COMPARED TO A 1% ANNEALED CARBON STEELRATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
THE FOLOWING APPLIES IF THE 4150 PREHARD ALLOY WILL BE ANNEALED, REHARDENED OR STRESS RELIEVED.
1. ANNEAL: HEAT SLOWLY TO 1450-1550 F, SOAK ONE HOUR PER INCH OF THICKNESS AT HEAT. COOL 20 F PERo o
HOUR TO 1200 F AIR COOL TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS- 200 MAX. BRINELL.o
2. STRESS RELIEF OF ANNEALED MATERIAL: HEAT SLOWLY TO 1250 F. SOAK FOR TWO HOURS PER INCH OFo
THICKNESS AT HEAT. SLOW COOL (FURNACE COOL IF POSSIBLE) TO ROOM TEMPERATURE.
3. PREHEAT: HEAT TO 1200-1300 F, HOLD AT THIS TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1525-1550 F. SOAK AT HEAT 30 MINUTES PER INCH OF THICKNESS.o
5. QUENCH: OIL QUENCH TO 150-200 F. TEMPER IMMEDIATELY.o
6. TEMPER: NORMALLY OIL HARDENING STEELS NEED BE SINGLE TEMPERED ONLY. HOWEVER, DOUBLE TEMPERING MAY SOMETIMES BE PREFERRED. SOAK AT HEAT FOR TWO HOURS PER INCH OF THICKNESS FOR EACH TEMPER. AIR COOL TO ROOM TEMPERATURE BETWEEN TEMPERS.
7. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER THAN THEo
LAST TEMPERING TEMPERATURE USED.
TEMPERING HARDNESSBRINELL/HRC
900 Fo
444/47
429/46
401/43
363/39
331/37
TENSILE STRENGTH 1000 PSI.
YIELD STRENGTH 1000 PSI.
215,000
181,000
161,000
140,000
230,000
1. 2.
3.
4.
5.
6. 6. 7.
4150 ANNEALED ALLOY STEELMATERIAL AND HEAT-TREAT SPECIFICATIONS
197,000
198,000
800 Fo
C 0.50 Mn 0.90 Mo 0.20 Cr 1.00
1300 Fo 262/27 117,000
212,000
180,000
158,000
127,000
1200 Fo
1100 Fo
1000 Fo
*APPROX. VALUES FOR EST. ONLY. 1 IN. SPECIMENS WERE TESTED AFTER OIL QUENCHING FROM 1525 F.O/ o
* *
APRIL 1996 17
WELDING: WHEN WELDING ANNEALED AISI 4150, USE A 4150 WELD ROD. PREHEAT AND POSTHEAT AT 400-900 F.o
REANNEAL BEFORE HARDENING. WHEN WELDING 4150 IN THE HARDENED CONDITION USE AN AISI S-7 ROD FOR SHOCKAND H-12 TYPE ROD FOR WEAR APPLICATIONS. PREHEAT AND POSTHEAT AT 400-500 F. MAINTAIN THE PREHEATo
TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER AFTER WELDING AT 350-400 F. THE RESULTINGo
HARDNESS SHOULD BE HRC 54-58 WHEN USING THE S-7, 52-54 WHEN USING THE H-12 ROD.
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE,VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
600 Fo
500 Fo
400 Fo
534/54
555/55
578/56
264,000
283,250
301,500
240,000
247,000
248,000
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A-HT SMQ IS AN AIR-HARDENABLE TOOL STEEL, SIMILAR TO A-2 IN ALLOY CONTENT BUT WITH INCREASED WEARRESISTANCE. ADDITIONS OF TITANIUM AND TUNGSTEN PRODUCE HARD, LONG WEARING CARBIDES WHICH HELPDECREASE GALLING AND METAL PICK-UP. WHEN COMPARED TO D-2 TOOL STEEL, A-HT SMQ HAS THE SAME ABRASIONRESISTANCE AND MUCH BETTER IMPACT STRENGTH AND TOUGHNESS. WHEN PROPERLY ANNEALED, THIS GRADE HAS AMACHINABILITY RATING OF 50 WHEN COMPARED TO A 1% CARBON STEEL RATED AT 100. BECAUSE OF THE TITANIUMADDITION TO THE CHEMISTRY OF A-HT SMQ, TITANIUM COATED INSERTS SHOULD NOT BE USED WHEN MACHINING.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE, VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT 1650 F, SOAK TWO HOURS PER INCH OF THICKNESS. COOL 40 F PER HOUR TO 900 F. AIR o o o
COOL TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS 235 HB MAX.
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1200-1250 F. SOAK FOR TWO HOURS PER o
INCH OF THICKNESS AT HEAT, SLOW COOL (FURNACE COOL IF POSSIBLE) TO ROOM TEMP.
3. PREHEAT: HEAT TO 1200 F, HOLD AT TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1775 F, SOAK AT HEAT FOR 45-60 MINUTES PER INCH OF THICKNESS.o
5. QUENCH: AIR QUENCH TO 150 F. TEMPER IMMEDIATELY.o
6. TEMPER: DOUBLE TEMPER IS MANDATORY, THREE TEMPERS ARE SOMETIMES PREFERRED. SOAK FOR TWO HOURS PER INCH OF THICKNESS AT HEAT FOR EACH TEMPER. AIR COOL AT ROOM TEMPERATURE BETWEEN TEMPERS.
7. OPTIONAL SUB-ZERO TREATMENT: FOLLOWING AN INITIAL TEMPER (NEVER AS A CONTINUATION OF THE QUENCH), SOAK AT SUB-ZERO TEMPERATURE FOR TWO HOURS PER INCH OF THICKNESS AND SLOWLY BRING BACK TO ROOM TEMPERATURE. TEMPER AFTER SUB-ZERO TREATMENT.
8. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER o
THAN THE LAST TEMPERING TEMPERATURE USED.
TEMPERING ROCKWELL C
400 Fo
500 Fo
600 Fo
700 Fo
1 IN. SPECIMENS WERE QUENCHED FROM 1775 F.O/ o
63/64
59
57
57
56
TEMPERING ROCKWELL C
1000 Fo
1100 Fo
1200 Fo
55/56
55
50
43
800 Fo
1. 2.
3.
4.
5.
6. 6. 6. 8.
7.
A-HT SMQ DOUBLE MELT TOOL STEELMATERIAL AND HEAT-TREAT SPECIFICATIONS
900 Fo 55/56
AS QUENCHED
C 1.00 Mo 1.10 Cr 3.00 V 0.25 W 1.05 Ti 1.00
APRIL 199618
WELDING: WHEN WELDING A-HT SMQ IN THE ANNEALED OR HARDENED CONDITION USE AN A-2 WELD ROD. PREHEAT AND POSTHEAT ANNEALED STEELS AT 400-900 F, HARDENED STEELS AT 400-500 F. MAINTAIN THE o o
PREHEAT TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER HARDENED STEELS 25-50 F BELOW o
THE LAST TEMPERING TEMPERATURE USED AFTER WELDING. THE RESULTING HARDNESS SHOULD BE HRC 56-58 WHEN USING THE A-2 TYPE ROD.
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S-7 DOUBLE MELT SHOCK-RESISTING TOOL STEEL IS A MEDIUM CARBON, AIR-HARDENING TOOL STEEL,MANUFACTURED TO (DOUBLE MELTED) SPECIFICATIONS. S-7 DOUBLE MELT’S LOW CARBON LEVEL, FORTIFIEDCHEMISTRY, ULTRA CLEAN, UNIFORM AND HOMOGENOUS INTERIOR STRUCTURE MAKE IT SUPERIOR TO THE OTHERCONVENTIONALLY MANUFACTURED SHOCK-RESISTING TOOL STEELS. WHEN PROPERLY ANNEALED, THIS STEEL HASA MACHINABILITY RATING OF 75 COMPARED TO A 1% CARBON STEEL RATED AT 100.
SUB-ZERO
R. TEMP
500 Fo
1000 Fo
1500 Fo
2000 Fo
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLED NEUTRAL ATMOSPHERE,VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
1. ANNEAL: HEAT 1550 F, SOAK FOR 1-1/2 HOURS PER INCH OF THICKNESS. COOL 25 F PER HOUR TO 900 F. AIRo o o
COOL TO ROOM TEMPERATURE. APPROXIMATE ANNEALED HARDNESS 230 MAX. BRINELL.
2. STRESS RELIEF OF UNHARDENED MATERIAL: HEAT SLOWLY TO 1250 F. SOAK FOR TWO HOURS PER INCH OFo
THICKNESS AT HEAT. SLOW COOL, (FURNACE COOL IS POSSIBLE), TO ROOM TEMP.
3. PREHEAT: HEAT TO 1250 F, AND HOLD AT THIS TEMPERATURE UNTIL THOROUGHLY SOAKED.o
4. HARDEN: HEAT TO 1725 F, SOAK AT HEAT FOR 45-60 MINUTES PER INCH OF THICKNESS. SIZES UNDER 1 IN.o
THICK SHOULD BE HELD FOR 45-60 MINUTES MINIMUM.
5. QUENCH: AIR QUENCH TO 150 F. FLASH OIL QUENCHING IS SOMETIMES USED FOR SECTIONS WITH A THICKNESSo
OF 2.5 IN. OR GREATER. TEMPER IMMEDIATELY AFTER QUENCHING IN ALL CASES.
6. TEMPER: DOUBLE TEMPER IS MANDATORY, THREE TEMPERS ARE SOMETIMES PREFERRED. SOAK FOR TWO HOURS PER INCH OF THICKNESS FOR EACH TEMPER. AIR COOL TO ROOM TEMPERATURE BETWEEN TEMPERS. FOR COLD WORK APPLICATIONS, THE NORMAL TEMPERING RANGE IS 400-500 F. FOR HOT WORK APPLICATIONS, A TEMPERINGo
TEMPERATURE OF 900-1000 F IS SUGGESTED. NEVER TEMPER S-7 UNDER 400 F.o o
7. OPTIONAL SUB-ZERO TREATMENT: FOLLOWING AN INITIAL TEMPER (NEVER AS A CONTINUATION OF THE QUENCH), SOAK AT SUB-ZERO TEMPERATURE FOR TWO HOURS PER INCH OF THICKNESS AND SLOWLY BRING BACK TO ROOM TEMPERATURE. TEMPER AFTER SUB-ZERO TREATMENT.
8. STRESS RELIEF TEMPER: A STRESS RELIEF TEMPER FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER THAN THEo
LAST TEMPERING TEMPERATURE USED.
TEMPERING ROCKWELL C
400 Fo
500 Fo
600 Fo
700 Fo
1 IN. SPECIMENS, 3 IN. LONG WERE AIR-HARDENED FROM 1725 F.O/ o
60
58
56
55
54
TEMPERING ROCKWELL C
1000 Fo
1100 Fo
1200 Fo
53
51
47
38
800 Fo
1. 2.
3.
4.
5.
6. 6. 6. 8.
7.
S-7 DOUBLE MELT TOOL STEELMATERIAL AND HEAT-TREAT SPECIFICATIONS
900 Fo 52
AS QUENCHED
C 0.50 Si 0.25 Mn 0.70 Cr 3.25 Mo 1.40
19APRIL 1996
WELDING: WHEN WELDING AISI S-7 DOUBLE MELT IN THE ANNEALED OR HARDENED CONDITION USE AN S-7 WELDROD. PREHEAT AND POSTHEAT ANNEALED STEELS AT 400-900 F, HARDENED STEELS AT 400-500 F. MAINTAIN THEo o
PREHEAT TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE TEMPER HARDENED STEELS 25-50 F BELOW THEo
LAST TEMPERING TEMPERATURE USED AFTER WELDING. THE RESULTING HARDNESS SHOULD BE HRC 54-58 WHENUSING THE S-7 TYPE ROD.
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MATERIAL AND HEAT TREAT SPECIFICATIONSCAST CUT #1 TOOL STEEL
C .57/.65 Mn 1.30/1.60 SI .50/.80 Cr 1.30/1.70 P .030 MAX.S .110/.130 Ni .20/.30 Cu .35/.45 AL .06/.10
CAST CUT #1 TOOL STEEL WAS DESIGNED FOR STAMPING MANUFACTURING APPLICATIONS WHERETHE FLAME HARDENING OF TOOLING IS REQUIRED. CAST CUT #1 IS ESPECIALLY FORMULATEDTO MINIMIZE PROBLEMS RELATED TO DISTORTION AND CRACKING WHILE BEING FLAME HARDENED.SUPPLIED IN THE CAST TO SHAPE CONDITION, CAST CUT #1 IS DELIVERED PRE-HARDENED TO32/35 Rc. AND IS READILY MACHINABLE AT THIS LEVEL OF HARDNESS. LARGE TOOL COMPONENT CASTINGS ARE SUPPLIED IN THE ANNEALED AT THE 190-230 BRINELL. CAST CUT #1 CAN ALSOBE ORDERED IN THE NORMALIZED AND TEMPERED CONDITION AT 250-320 BRINELL. IN EITHERTHE PRE-HARD OR NORMALIZED AND TEMPERED CONDITION THIS GRADE OF STEEL WILL HAVE ANEXCELLENT COMBINATION OF HIGH TENSILE AND COMPRESSIVE STRENGTH WHICH WORK TOPROVIDE AN EXTREMELY RIGID, NON-DISTORTING BASE FOR THE FLAME-HARDENED CASE.
1500 Fo
1000 Fo
500 Fo
R. TEMP
FURNACE: TO AVOID DECARBURIZATION, THIS GRADE SHOULD BE HARDENED IN A CONTROLLEDATMOSPHERE, VACUUM OR NEUTRAL SALT FURNACE ENVIRONMENT.
FLAME HARDENING: HEAT TO CHERRY RED COLOR (APPROXIMATLEY 1600 F). ALLOW SECTIONS TOo
COOL---WATER QUENCHING IS NOT REQUIRED. WHEN PROPERLY APPLIED, FLAME HARDENING THIS GRADE WILL ACHIEVE A UNIFORM, TOUGH CASE HARDEN OF 58/62 Rc WITH VERY LITTLE OR NODISTORTION TO A DEPTH OF 3/16"-3/8".
1. ANNEAL: HEAT TO 1650 F, SOAK UNTIL UNIFORMLY HEATED, APPROXIMATELY ONE-HALF HOURo
PER INCH. FURNACE COOL TO 50 F PER HOUR TO 975 F, AIR COOL TO ROOM TEMP. o o
APPROXIMATE ANNEALED HARDNESS 250 MAX. BRONELL.
NORMALIZE: HEAT TO 1600 F, AIR COOL. TEMPER AT 1250 F. DEPENDING ON SECTION SIZEo o
A 250 TO 320 BRINELL WILL RESULT.
2. STRESS RELIEF: HEAT SLOWLY TO 1200-1250 F. SOAK FOR TWO HOURS PER INCH OF THICKNESSo
AT HEAT. SLOW COOL (FURNACE IF POSSIBLE) TO ROOM TEMOERATURE.
3. FURNACE HARDENING IS NOT RECOMMENDED. USE NORMALIZATION PROCEDURE DESCRIBED ABOVE.
4. TEMPER: HEAT TO 300-350 F IN EITHER A FURNACE OR WITH A TORCH AND A 300-350 F o o
TEMPLE STICK. A RESULTING HARDNESS OF APPROXIMATELY 60 HRC WILL DEVELOP. 5. STRESS RELIEF TEMPER: A STRESS RELIEF FOR HARDENED MATERIAL IS STRONGLY RECOMMENDED AFTER SIGNIFICANT GRINDING, OR WELDING, OR EDM. SELECT A TEMPERATURE THAT IS 25 OR 50 F LOWER THAN THE LAST TEMPERING TEMPERATURE USED.o
6. WELDING: WHEN WELDING CAST CUT #1, USE CC#1 FILLER METAL. PREHEAT AND POSTHEAT AT 250-300 F FOR SMALL BUIDUPS AND AT 500 F-700 F FOR LARGER SECTIONS THAT REQUIREo o o
HEAVY BUILDUPS. LARGE SECTIONS SHOULD BE PROCESSED ON A GAS FIRED OR INFRA RED HEAT TABLE TO MAINTAIN TEMPERATURE. WHEN WELDING CAST CUT #1 IN THE FLAME HARDENED CONDITION USE CC#1 ROD FOR TRIM AND FLANGE APPLICATION. PREHEAT AND POSTHEAT TO 300-350 F. MAINTAIN THE PREHEAT TEMPERATURE AS THE INTERPASS TEMPERATURE. DOUBLE o
TEMPER AFTER WELDING AT 250-400 F. THE RESULTING HARDNESS SHOULD BE HRC 57-59 AS o
DEPOSITED.
1. 2. 4. 4. 5.
DEC. 199720
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HEAT TREATMENT "EA"
GENERAL INFORMATION:
PROCEDURE:
CASE DEPTH VS TIME AT TEMPERATURE F.o
TIME IN HOURS AT TEMPERATURE Fo
2 4 6 8 10 12 14 16 18 20 22
.020
.030
.040
.050
.060
.070
.080
.090
.100
.110
.120
CASE DEPTH IN INCHES 1700 Fo
1650 Fo
TEMPERINGTEMPERATURE
ROCKWELLHARDNESS
300 F STRAIN RELIEF, AS QUENCHED HARDNESS
400 F C-60-64
500 F C-56-60
600 F C-51-55
700 F C-46-50
1. CARBURIZE AT 1650 - 1700 F TO A DEPTH OF .025-.035 OR AS SPECIFIED. SEE CURVE BELOW.
2. AIR COOL PART TO ROOM TEMPERATURE. 3. ANNEAL - HEAT TO 1450 F, COOL AT 50 F PER HOUR MAXIMUM TO 1000F. AIR COOL TO ROOM TEMPERATURE.
4. REHEAT TO 1450 - 1550 F. (DEPENDING ON CORE HARDNESS DESIRED).
5. QUENCH IN AGITATED OIL.
6. TEMPER TO REQUIRED HARDNESS. APPIES TO "EA" 4150 MATERIAL.
APRIL 1998 21
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HEAT TREATMENT "N"
PROCEDURE:1. A PROTECTIVE MEDIUM TO PREVENT CARBURIZATION OR DECARBURIZATION DURING HEATING IS REQUIRED. DEPENDING ON THE SIZE OF THE PART AND FACILITIES AVAILABLE, THE PART MAY BE PACKED IN M-4B8, PITCH COKE, OR M-4B18, NEUTRAL PACKING MATERIAL, HEATED IN A FURNACE WITH ATMOSPHERE CONTROL OR HEATED IN A NEUTRAL SALT BATH.2. PREHEAT AT 1200 - 1250 F.
3. HIGH HEAT AT 1850 - 1880 F.
4. QUENCH IN AIR AND DOUBLE TEMPER AT 350 F.
-OR-
TEMPERING CURVE
ROCKWELL "C" HARDNESS - TEMPERING TEMPERATURE F.o
GENERAL INFORMATION:
DOUBLE TEMPER TO SPECIFIED HARDNESS(SEE TEMPERING CURVE).
THIS PROCEDURE IS DESIGNED PRIMARILY TOHARDEN HIGH CARBON HIGH CHROMIUM DIESTEELS SIMILAR TO M-9925-A (SAE D2) BUTMAY BE ASSIGNED TO OTHER STEELS IFAPPLICABLE.VALUES SHOWN IN THE TEMPERING CURVE BELOWARE TO BE USED AS A GUIDE ONLY. VARIATIONSIN SECTION SIZE, THE PERCENTAGE OF MARTENSITE PRESENT IN THE QUENCHED STRUCTURE, THE AUSTENITIZING TEMPERATURE AND SIMILAR FACTORS WILL INFLUENCE THE HARDNESS OBTAINED FOR A TEMPERING TEMPERATURE.
AS QUENCHED
300 400 500 600 700 800 900 1000 1100 1200 TEMPERING TEMPERATURE- -DEGREES FAHRENHEIT
110
124
142
163
186
212
245
287
20
25
30
35
40
45
50
55
60
65
ROCKWELL "C" HARDNESS
APPROX. BRINELL HARDNESS NUMBER - 3000 KG LOAD
226
253
286
327
371
421
475
560
654
739
APPROX. TENSILE STRENGTH - 1000 PSI
APRIL 199822
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HEAT TREATMENT "NA"
PROCEDURE:
1. A PROTECTIVE MEDIUM TO PREVENT CARBURIZATION OR DECARBURIZATION DURING HEATING IS REQUIRED. DEPENDING ON THE SIZE OF THE PART AND THE FACILITIES AVAILABLE, THE PART MAY BE PACKED IN M-4B8 OR M-4B18 PROTECTIVE MEDIUM, HEATED IN A FURNACE WITH ATMOSPHERE CONTROL OR IN A NEUTRAL SALT BATH. 2. PREHEAT AT 1450 - 1500 F.o
3. HEAT UNIFORMLY TO 1750 - 1800 F.o
4. REMOVE FROM PROTECTIVE MEDIUM AND ALLOW TO COOL IN STILL AIR.
5. DOUBLE TEMPER AT 350 F OR DRAW TO SPECIFIED HARDNESS (SEE TEMPERING CURVE).
GENERAL INFORMATION:
THIS PROCEDURE IS DESIGNED TO HARDEN 5% CHROMIUM AIR HARDENING STEEL (SAE A2) BUTMAY BE USED FOR OTHER STEELS IF APPLICABLE.
VALUES SHOWN IN THE TEMPERING CURVE BELOW ARE TO BE USED AS A GUIDE ONLY. VARIATIONSIN SECTION SIZE, THE PERCENTAGE OF MARTENSITE PRESENT IN THE QUENCHED STRUCTURE, THE AUSTENITIZING TEMPERATURE AND SIMILAR FACTORS WILL INFLUENCE THE HARDNESSOBTAINED BY A GIVEN TEMPERING TEMPERATURE.
TEMPERING CURVEROCKWELL HARDNESS VS TEMPERING TEMP. F.o
124
142
163
186
212
245
287
25
30
35
40
45
50
55
60
65
APPROX. TENSILE STRENGTH - 1000 PSI
ROCKWELL "C" HARDNESS
APPROX. BRINELL HARDNESS NUMBER 3000 KG LOAD
253
286
327
371
421
475
560
654
739
TEMPERING TEMPERATURE - DEGREES FAHR.
ASQUENCHED
300 400 500 600 700 800 900 1000
23APRIL 1998
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HEAT TREATMENT "P"
GENERAL INFORMATION:PROCEDURE:
1. CARBURIZE AT 1650 - 1700 F. (SEE CURVE BELOW).2. COOL SLOWLY IN CARBURIZING BOX, LIME MICA OR HOLDING FURNACE.3. NORMALIZE. HEAT TO 1650 F. (AIR COOL).4. REHEAT TO 1425 - 1550 F DEPENDING ON CORE HARDNESS REQUIRED.5. QUENCH IN BRINE.6. TEMPER AT 350 - 375 F. ROCKWELL C 62 - 64.
CASE DEPTH VS TIME AT TEMPERATURE F.o
SINCE THIS TREATMENT LEAVES THE CORE SOFTIT IS APPLICABLE TO PARTS WHICH AREDIFFICULT TO STRAIGHTEN.
SURFACE AREAS TO BE LEFT SOFT MAY BETREATED AS FOLLOWS:1. LEAVE STOCK ON THE AREA.2. CARBURIZE.3. MACHINE EXTRA STOCK OFF.4. HEAT AND QUENCH AS ABOVE.
THIS PROCEDURE IS INTENDED FOR M-9934-AMACHINE STEEL AND SAE 5120 STEEL, BUT MAYBE USED FOR OTHER STEELS IF APPLICABLE.
TIME IN HOURS AT TEMPERATURE Fo
2 4 6 8 10 12 14 16 18 20 22
.020
.030
.040
.050
.060
.070
.080
.090
.100
.110
.120
CASE DEPTH IN INCHES
1700 Fo
1650 Fo
24 APRIL 1998
NORTH AMERICA ONLY
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