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• MuraliKrishna

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WELDING PROCEDURE SPECIFICATION (WPS) Construction Code: (ASME Sec IX) Project Name:

WPS No: PMPL/L&T/WPS/08 Revision No:-0 Date: Welding Process(es):- GTAW JOINTS (QW-402) Joint Design:- AS SHOWN IN SKETCH Root Spacing:- AS SHOWN IN SKETCH Backing:- N/A Backing Material (Type) : N/A

Date: Supporting PQR No:-

PMPL/L&T/PQR/08

Type:- MANUAL

Joint Design Used:-

BASE METALS (QW-403) P-No. 8

Group No.1

to

P-No. 8

Thickness Range: Base Metal :Groove:- up to 20mm Pipe Dia. (mm) groove: NA Maximum Pass Thickness≤ ½ in. ( 13 mm ) Yes:-Y FILLER METALS (QW -404) GTAW SFA No: 5.9 AWS CLASS: ER308-16 F. No. 6 A. No. 8 Size of Filler Metals

2.5mm

Group No.:-1

Fillet: ANY SIZE No:SMAW 5.4 E308-16 5 8 2.5,3.15mm

PREHEAT (QW-406) Preheat Temperature, : -20°C Interpass Temperature : - 175 °C Preheat Maintenance: - NA Other:-NA POST HEAT(QW-406) POSTHEAT Temperature :

RATE OF HEATING : RATE OF COOLINHG:

-NA NA

POST WELD HEAT TREATMENT (QW407) Temperature Range: NASOCKING Time range: -NA Other:-NA GAS (QW-408)

Filler Metal Product Form

Percent Composition

Deposited Weld Metal Thickness Range:

Gases

Thickness Range (Groove)

5mm Max

15mm

Thickness Range (Fillet)

NA

NAElectrode Flux( Class) FlNAuNAxNA Type:-

Mixture

Flow Rate

Shielding

NA

NA

NA

NA

Trailing

NA

NA

NA

NA

NA

Backing

NA

NA

NA

NA

NA

Flux Trade Name

NA

NA

Consumable Insert

NA

NA

Other

NA

NA

POSITIONS (QW -405) Positions of groove: 2G Welding Progression:Position(s) of Fillet:-ALL Other:-NA

Up:

NA

Down: NA

ELECTRICAL CHARACTERISTCS (QW-409)

TECHNIQUE (QW-410)

Current : (AC or DC) : GTAW: AC or DC

String or Weave Bead: EITHER

Polarity : (SP or RP) : GTAW: DCEN

SMAW : AC or DC

SMAW: DCEP

Orifice or Gas Cup Size : NA

Metal Transfer Mode for GMAW/FCAW: NA

Initial & Interpass Cleaning(Brushing, Grinding etc) :YES

Tungsten Electrode Size and Type: 2.5

Method of Back Gouging : NA

Electrode Wire Feed Speed Range: NA

Oscillation: NA

Other:-

Contact Tube to Work Distance: NA Multiple or Single Pass (per side): MULTIPLE Multiple or Single Electrodes: SINGLE Electrode Spacing:- NA Travel Speed (range): 40mm/min Peening:

Weld Layer(s) Root FILLU P FINAL L

Filler Metal

Process

GTAW SMAW SMAW

F-No.

A-No.

SFA No.

6

5

5.9

5

8

5.4

5

8

5.4

Size mm

Type Amp. Range

Volt. Range

Heat Input (KJ/ mm)

2.5

DCEN

40-50

15-22

--

--

2.5

DCEP

60-80

20-26

--

--

3.15,4

DCEP

80-100

20-26

--

--

Remark : Rev.No

0

Prepared By

Other

Reviewed & Approved by L&T