WPS (Gtaw) [PDF]

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WELDING PROCEDURE Company Name : BALAI BESAR LOGAM DAN MESIN Welding Process : GTAW / TIG Supporting :BBLM/AWS D1.1



SPECIFICATION (WPS) Identification



: BBLM/AWS D1.1



Authorized By : Aditya Ramadhan JOINT DESIGN Type



: Single Weld



Date



: 24/08/2020



Type



: Manual



Position



: 1G



Backing Material : N/A Root Opening



: 1.6 – 3 mm



Groove Angle



: 60°



ELECTRICAL CHARACTERISTICS 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 Specification



TECHNIQUE : AWS A 5.18



Stringer or Weave Bead



ER70S-6



Multhy or Single Pass (preside) : Multhy Pass



SHIELDING Flux



:-



Electo-Flux (Class)



: String and Weaving



Number of Electrodes



: Single



Gas



: Argon (Ar)



Inter Pass Cleaning



: Brushing



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 Pass or Weld Layers



Filler Metals Process



Class



Current



Diameter



Type and Polarity



Ampers



Volts



Wire Feed speed



Travel Speed (mm/min)



1. Root



 GTA W



 ER70S-6



 2.4 mm



 DCEN



70 - 90



-



 



 10 -15



56.17



2. Capping



 GTA W



 ER70S-6



 2.4 mm



DCEN



80-100



-



 



 10 – 15



74.40



3.Cover



 GTA W



 ER70S-6



 2.4mm



DCEN



90 – 110



-



 



 10 – 15



72.25



Joint Details



See Annex