guide 3mm gap1.5d bend5091 - nationalfertilizers.com · rest + guide 3mm gap. ... qw-482 welding...
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OWNER: NATIONAL FERTILIZER LIMITED WPS NO. : SD/001
DATE : 13.08.2016
DATE : 21.03.2017 REV. 0
TYPE ManualGroove Angle 370
JOINT DESIGN Root Face 1-2 mm
BACKING Root Gap 2.5-3.5 mm
BACKING MATERIAL
MATERIAL SPECTYPE OR GRADEP.NO.TO P.NO.THICKNESS RANGEPIPE DIA. RANGEOTHER GASES MIXTURE FLOW RATE
GTAW SHIELDING Argon 99.997% 12 -16 Lit/Min
SFA SPEC. 5.22 TRAILING -- -- --
AWS CLASS. R308LT1-5 BACKING -- -- --
F-NO 6
A-NO 8 CURRENT DC POLARITY DCEN
SIZE OF FILLER METAL 2.2
DEPOSITED WELD METAL THK.
POSITION OF GROOVE As per table
WELDING PROGRESSION String/Weave
POSITION OF FILLET NA
Multiple
PREHEAT TEMP. (Min.) Single
INTERPASS TEMP. (Max.) NA
NA
NA
SS WIRE BRUSHING
NO
CLASS DIA.TYPE AND POLARITY
AMP RANGE
ROOT GTAW R308LT1-5 2.2 DCEN 71-95 10-23 25-60
HOT PASS GTAW ER 308L 2.4 DCEN 80-105 10-15 83-103
FILL UP GTAW ER 308L 2.4 DCEN 110-140 15-21 76-126
FINAL GTAW ER 308L 2.4 DCEN 106-121 15-19 76-102
THIS WPS IS APPLICABLE FOR NFL-BHATINDA JOBS ONLY
FILLER METAL(QW-404)
PERCENT COMPOSITION
NA
PREPARED BY L&T
SIGNATURE :
NAME:
DATE :
OTHER
CONTACT TUBE TO WORK DISTANCE
GAS CUP SIZE
METHOD OF BACK GOUGING
TUNGSTEN SIZE
NA
10 DEGREE C
175 DEGREE C
OSCILLATION (Max.)
MULTI OR SINGLE PASS
7.38 mm (max)
PREHEAT(QW-406)
TECHNIQUE (QW-410)
THICKNESS RANGE FOR GROOVE
THICKNESS RANGE FOR FILLET
MODE OF METAL TRANSFER
WIRE FEED SPEED RANGE
LARSEN & TOUBRO LIMITED
5.9
ER 308L
NA
BASE METALS(QW(403)
TIME (Min.)
Single "V" BW
JOINTS(QW-402)
NIL
2.99 to 11.98 mmALL
GAS(QW-408)
NA
HEATING/COOLING RATEP8 GR 1 to P8 GR1
WELD LAYERS PROCES VOLT RANGEFILLER METAL
PREHEAT MAINTAINCE NA
POST HEATING (Min.) NAINITIAL & INTERPASS CLEANING
PEENING
All
DATE: 21.03.2017
QW-482 WELDING PROCEDURE SPECIFICATION ASME SEC.IX, BOILER & PRESSURE VESSEL CODE
GTAW
A 358 TP 304
TRAVEL SPEED RANGE
CURRENT
NANA
MULTIPLE OR SINGLE ELECTRODE
2.4 mm & EWCe-2
TRAVEL SPEED (mm / min.)
STRING OR WEAVE
NA
NIL
POST WELD HEAT TREATMENT (QW-407)TEMPERATURE RANGE
Uphill
NA
POSITION(QW-405)
6
8
VOLTS2.4
As per Table
4.6 mm (Max.)
As per TableAMPS
NA
ELECTRICAL CHARACTERISTICS (QW-409)
Format No.LT/AFC/NFL-B/PIPE/WPS/016, Rev-00
AMMONIA PLANT FEEDSTOCK CHANGEOVER PROJECT, NFL-BATHINDA
PDIL/ NFL
NA
APPROVED & CHECKED BY L&T
WPS No. : SD/001
WELDING PROCESS : GTAW
EPCC: LARSEN & TOUBRO LIMITED
PMC: PROJECT & DEVELOPEMENT INDIA LTD
SUPPORTING PQR No.: 10110-BOP-CERSF-L&T-PQR-11
TP 304