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Welding Procedure Specification (WPS)

This document provides a welding procedure specification for a gas tungsten arc welding (GTAW) process. It specifies welding 6 mm thick stainless steel grade SS 400 in the 1G position using four passes with ER70S-6 filler metal and an argon gas shield. The root pass uses a current of 90 amps at 52.63 mm/min travel speed. Interpass cleaning is done by brushing and no preheat or post weld heat treatment is required.

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Ramadhan Aditya
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684 views2 pages

Welding Procedure Specification (WPS)

This document provides a welding procedure specification for a gas tungsten arc welding (GTAW) process. It specifies welding 6 mm thick stainless steel grade SS 400 in the 1G position using four passes with ER70S-6 filler metal and an argon gas shield. The root pass uses a current of 90 amps at 52.63 mm/min travel speed. Interpass cleaning is done by brushing and no preheat or post weld heat treatment is required.

Uploaded by

Ramadhan Aditya
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Company Name : BALAI BESAR LOGAM DAN MESIN

Welding Process : GTAW /WELDING


TIG PROCEDURE SPECIFICATION (WPS)
Supporting :BBLM/AWS D1.1 Identification : BBLM/AWS D1.1
Authorized By : Aditya Ramadhan
Date : 24/08/2020
JOINT DESIGN Type : Manual
Type : Single Weld Position : 1G
Backing Material : N/A
Root Opening : 1.6 – 3 mm ELECTRICAL CHARACTERISTICS
Groove Angle : 60° General Characteristics
Current : DCEN
BASE METALS Other :-
Material Specification : SS 400 Tungsten Electrode (GTAW)
Type or Grade : N/A Size : 2 – 2.4 mm
Thickness : 6 mm Type : EWTh2

FILLER METALS TECHNIQUE


Specification : AWS A 5.18 Stringer or Weave Bead : String and Weaving
ER70S-6 Multhy or Single Pass (preside) : Multhy Pass
SHIELDING Number of Electrodes : Single
Flux :- Gas : Argon (Ar) Inter Pass Cleaning : Brushing
Electo-Flux (Class) Composition : UHF Other :-
Flow Rate (Shielding) : 10 – 15 L/min
Gas Cup Size :3–8

PREHEAT POSTWELD HEAT TREATMENT


Preheat Temperature, Min : -°C Temperature : -°C
Interpass Temperature, Min : -°C Time : - min

WELDING PROCEDURE

Filler Metals Current


Pass or Weld Travel Speed Heat Input
Process Volts
Layers Type and Wire Feed (mm/min) (KJ/mm)
Class Diameter Ampers
Polarity speed

1. Root Pass  GTAW  ER70S-6  2.4 mm  DCEN 90  - 12 52.63 2.52

2. Hot Pass  GTAW  ER70S-6  2.4 mm DCEN 90  - 12 69.44 0.93


3. Capping GTAW ER70S-6 2.4 mm DCEN 90  - 12 66.48 0.97

4.Back Weld GTAW ER70S-6 2.4 mm DCEN 90  - 12 103.73 0.62

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