welders qualification
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Welders Qualification,According
To ASME Sec IX
POSITION AND
DIAMETER LIMITS
(With Other Limits Qw303)
PLATE - GROOVE
Plate andPipe Over 24 in (610 mm) OD
Pipe <=24 in (610) mm OD
Pipe and plate
Plate -Groove 1G F F (NOTE 2) FPlate -Groove 2G F, H F, H (NOTE2) F, HPlate -Groove 3G F, V F, NOTE2 F, H,VPlate -Groove 4G F,O F, NOTE2 F, H,OPlate -Groove 3G& 4G F, V, O F, NOTE2 ALL
Plate -Groove2G,3G,
&4GALL F,H NOTE2 ALL
Plate -GrooveSpecial Position
SP,F SP,F SP,F
Groove Fillet
Weld Position
Qualification Test Position And Type Weld Qualified (Note 1)
NOTE1: 1)Position Of Welding As Shown As Shown In QW-461 And QW-461.2F= Flat,H=Horizontal,V=Vertical,O=Overhead2)Pipe 2 7/8 in (72mm) OD and over 3) See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6
Plate andPipe over 24 in (610 mm) OD
Pipe <=24 in (610) mm OD
Pipe and plate
Plate -Fillet 1F -- -- F NOTE 2Plate -Fillet 2F -- -- F, H NOTE2Plate -Fillet 3F -- -- F, H,V NOTE2Plate -Fillet 4F -- -- F, H,O NOTE2Plate -Fillet 3F &4F -- -- ALL NOTE2
Plate -FilletSpecial Position
-- -- SP,F NOTE2
NOTE
F= Flat H=HorizontalV=Vertical, O=Overhead
3)See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6
Groove Fillet
Weld Position
1)Position Of Welding As Shown As Shown In Qw-461 And Qw-461.2
2)Pipe 2 7/8 in (72mm) od and over
Qualification Test Position And Type Weld Qualified (Note 1)
PLATE - FILLET
Plate andPipe Over 24 in (610 mm) OD
Pipe <=24 in (610) mm OD
Pipe and plate
Pipe-Groove 1G F F F Pipe-Groove 2G F,H F,H F, H Pipe-Groove 5G F,V,O F,V,O ALL Pipe-Groove 6G ALL ALL ALL Pipe-Groove 2G&5G ALL ALL ALL
Pipe-GrooveSpecial Position
SP,F SP,F SP,F
NOTE
F= Flat H=HorizontalV=Vertical,1)Position Of Welding As Shown As Shown In Qw-461 And Qw-461.2
O=Overhead2)Pipe 2 7/8 in (72mm) od and over3)See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6
Groove Fillet
Weld Position
Qualification Test Position And Type Weld Qualified (Note 1)
PIPE-GROOVE
Plate and Pipe over 24 in (610 mm) OD
Pipe <=24 in (610) mm OD
Pipe and plate
Pipe-Fillet 1F -- -- F Pipe-Fillet 2F -- -- F, H Pipe-Fillet 2FR -- -- F,HPipe-Fillet 4F -- -- F,H,OPipe-Fillet 5F -- -- ALL
Pipe-FilletSpecial Position
-- -- SP,F
NOTE
F= Flat H=HorizontalV=Vertical,
Qualification Test Position And Type Weld Qualified (Note 1)
Groove Fillet
Weld Position
1)Position Of Welding As Shown As Shown In Qw-461 And Qw-461.2O=Overhead
2)Pipe 2 7/8 in (72mm) od and over3)See Diameter Restrictions In Qw-452.3, Qw452.4, Qw452.6
PIPE – FILLET
POSITIONSQW-461
PLATE-GROOVEQW-461.3
1G
2G
3G
4G
PIPE-GROOVEQW-461.4
1G
2G
5G
6G
PLATE-FILLETQW-461.5
1F
2F
3F
4F
PIPE –FILLETQW-461.6
1F(Rotated)
2F
2FR(ROTATED)
4F
5F
Qualified With
Qualified For
X
X
X
XF-No5 with out
Backing
XF-No5 with
Backing
XF-No4 with out
Backing
F-No 4 with Backing X
XF-No3 with out
Backing X
F-No 3 with Backing X X X
XF-No 2 with out
Backing X
F-No 2 with Backing X X X X X
X XF-No 1 with out
Backing X
F-No5 with
Backing
F-No5 with out Backing
F-No 1 with Backing X X X X X X X
F-No 3 with
Backing
F-No3 with out Backing
F-No 4 with
Backing
F-No4 with out Backing
F-No 1 with
Backing
F-No 1 with out Backing
F-No 2 with
Backing
F-No 2 with out Backing
QUALIFIED WITH QUALIFIED FOR QUALIFIED WITH QUALIFIED FOR
F-NO 1 WITH BACKING F-NO 1 WITH BACKING F-NO 1 WITH BACKING
F-NO 1 WITH BACKING F-NO 2 WITH BACKING
F-NO 1 WITH OUT BACKING F-NO 3 WITH BACKING
F-NO 1 WITH BACKING F-NO 4 WITH BACKING
F-NO 2 WITH BACKING F-NO 1 WITH BACKING
F-NO 1 WITH BACKING F-NO 2 WITH BACKING
F-NO 2 WITH BACKING F-NO 3 WITH BACKING
F-NO 4 WITH BACKING
F-NO 4 WITH OUT BACKING
F-NO 1 WITH BACKING F-NO 1 WITH BACKING
F-NO 2 WITH BACKING F-NO 5 WITH BACKING
F-NO 3 WITH BACKING F-NO 1 WITH BACKING
F-NO 1 WITH BACKING
F-NO 2 WITH BACKING
F-NO 3 WITH BACKING
F-NO 3 WITH OUT BACKING
F-No 2 WITH OUT BACKING
F-No 3 WITH BACKING
F-No5 WITH OUT BACKING
F-No3 WITH OUT BACKING
F-No 4 WITH BACKING
F-NO 5 WITH OUT BACKING
F-NO 5 WITH BACKING
F-NO 1 WITH OUT BACKING
F-No 2 WITH OUT BACKING
F-No 2 WITH BACKING
F-No4 WITH OUT BACKING
F-No5 WITH BACKING
Test Specimens
TEST SPECIMENS [ QW-452.1(a)]
Thickness of weld metal,
IN(mm)
TYPE AND NUMBER OF EXAMINATIONS AND TEST SPECIMENS REQUIRED
Visual Examination per
QW-302.4
Side Bend QW-462.2 [note (1)]
Face Bend QW-462.3(a) Or
QW-462.3(b) [Note (1),(2)]
Root Bend qw-462.3(a) or QW-
462.3(b) [note(1),(2)]
LESS THAN 3/8 (10)
X --- 1 1
3/8(10) TO LESS THAN 3/4(19mm)
X 2 [NOTE (3)] NOTE (3) NOTE (3)
3/4(19MM) AND OVER
X 2 --- ---
Thickness Limits
Thickness of Weld Metal QualifiedThickness,t,of weld metal inch, The coupon inch(mm) [Note1&
2]
Thickness of weld metal Qualified
[Note3]
• Up to13 mm
•½(13mm) and over with a minimum of three layers
•2t
•Maximum to be welded
DIAMETER LIMITS
QW-452.3
GROOVE WELD DIAMETER LIMITS QW-452.3
WELDER
PERFORMANCE
ESSENTIAL
VARIABLES
SMAW (QW-353)PARAGRAPH BREAF OF
VARIABLES
QW-402 JOINTS DELETION OF BACKING
QW-403 BASE METAL
CHANGE OF
PIPEDIA(QW-403.16)
&CHANGE OF
P-NUM(QW-403.18)
QW-404 FILLERMETALS
CHANGE OF
FILLER (QW404.15) &
CHANGEOF
WELD t DEPOSIT (QW404.30)
QW-405 POSITIONS
ADDITION OF POSITION
(QW-405.1) &
VERTI& DOWN WELDING
(QW-405.3)
What Is UNS Number?
(Ans)
Unified Numbering System
What is SFA Number?
(Ans)
Specification of Filler Analysis
What is P-Number?
(Ans)
Material Group Number
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