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Welding Procedure Specification: Detalii de Sudare / Welding Details

This document is a Welding Procedure Specification (WPS) that provides details for welding stainless steel pipes using gas tungsten arc welding (GTAW) process. The WPS specifies the joint type, welding position, materials, preparation, welding parameters such as current and time per pulse, and post weld heat treatment. It describes a single run welding sequence using a 4mm tungsten electrode, shielding gas, and no filler metal for butt joining 1-2mm thick stainless steel pipes in the flat position.

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Nicu Pruna
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122 views1 page

Welding Procedure Specification: Detalii de Sudare / Welding Details

This document is a Welding Procedure Specification (WPS) that provides details for welding stainless steel pipes using gas tungsten arc welding (GTAW) process. The WPS specifies the joint type, welding position, materials, preparation, welding parameters such as current and time per pulse, and post weld heat treatment. It describes a single run welding sequence using a 4mm tungsten electrode, shielding gas, and no filler metal for butt joining 1-2mm thick stainless steel pipes in the flat position.

Uploaded by

Nicu Pruna
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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Welding Procedure Specification

WPS number Constanta Method of preparation and Grinding and mechanical


Place cleaning: degreasing
Manufacturer’s name Joint type Resistant weld
Qualification codes ISO 15609 Welding position PA
Welding process 212 Outside diameter (mm) n.a.
Parent material ( 1 ) AISI 304 ÷ AISI 304L Material thickness ( 1 ) (mm) 1÷2
Parent material ( 2 ) AISI 304 ÷ AISI 304L Material thickness ( 2 ) (mm) 1÷2
Parent metal Group 8.1 WPAR no. ( 1 )
Weld preparation (design) See sketch WPAR no. ( 2 )

Pregatire rost / Weld preparation Succesiunea operatiunilor de sudare / Welding sequence

Detalii de sudare / Welding details

Run Process Electrode size mm Current Pre press. Welding time Post press. Remark
No: A Time pulse Time pulse
pulse
1 212 4 1690-2070 22-27 45-55 29-36
1 pulse = 0,02 sec.

Marca de fabricatie material de adaos: n.a Detalii craituire radacina,suport n.a.


Filler metal Consumables trade name radacina/
Details Back gauging, backing
Cod / Code designation n.a Preincalzire temperatura/ 5 °C
Preheat Temperature:
Gaz/ Gas / flux Gaz protectie/ n.a Temperatura intre treceri: n.a.
Shielding gas: Interpass temperature
Gaz suport/ n.a. Tratament termic post sudare: n.a.
Backing gas Post-Weld heat treatment, ageing
Debit/ Gasflowrate Gaz protectie/ n.a Timp, temperatura, metoda/ n.a.
Shieliding gas: n.a. Time, temperature, method
Gaz suport/
Backing gas
Wolfram / tungsten electrode size 4mm Viteza incalzire si racire*): In atmosfera /
Heating and cooling rates In atmosphere
Duza gaz diam. / Gas-nozzel diameter

Alte informatii/ Other information*):


Latimea maxima n.a. Detalii sudura in pulsuri: n.a.
Oscillatie: amplitude, frequentie n.a. Information pulsewelding
Lungimea libera / Stickout n.a

Initiated & composed by

Coordonator sudura/
Welding coordinator
Employer

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