Scribd
Upload
468 views2 pages

2G & 5G

This Welding Procedure Specification document provides details for welding pipe joints, including: - Welding positions of all groove and fillet welds - Preheating and interpass temperature requirements - Shielding gas specifications - Electrical characteristics such as current, polarity, voltage and electrode details - Welding techniques including string or weave bead, cleaning methods, and travel speeds - Pass details including process, filler metal, and heat input ranges

Uploaded by

Rahul Moottolikandy
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
468 views2 pages

2G & 5G

This Welding Procedure Specification document provides details for welding pipe joints, including: - Welding positions of all groove and fillet welds - Preheating and interpass temperature requirements - Shielding gas specifications - Electrical characteristics such as current, polarity, voltage and electrode details - Welding techniques including string or weave bead, cleaning methods, and travel speeds - Pass details including process, filler metal, and heat input ranges

Uploaded by

Rahul Moottolikandy
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
You are on page 1/ 2

Welding Procedure Specifications (WPS)

Reference :ASME B31.3,ASME Sec IX and E.S.5.14.0010RA

KRANTZ ENGINEERS W.L.L

WPS NO. :WPS-KE-001 Rev : 1 Date :22-05-11


POSITIONS (QW-405) POSTWELD HEAT TREATMENT(QW-407)
Position (s) of Groove : All Temperature Range : None
Welding Progression : Up hill Time Range : None
Position (s) of Fillet: All Rate of Heating : None
Rate of cooling : None
PREHEAT (QW-406) GAS (QW-408)
Preheat Temp. Min : To remove moisture or 20 ˚C Shielding Gas : Argon
(Preheat to 40˚C if metal Temp.<20˚C) Percent Composition : 99.99%
Interpass Temp. Max : Max 181 ˚C Flow Rate : 8-12 LPM
Method of heating : LPG/Propane Gas Heating Torch Gas Backing : NA
Temp. Monitoring Method : Thermo melt crayons/Digital Trailing Shielding Gas : NA
thermometer.
ELECTRICAL CHARACTERISTICS (QW-410)
Current : DC Polarity : EN (GTAW ) & EP (SMAW)
Amps (Range) : 50Amps – 160 Amps(GTAW) Volts ( Range ) : 7V – 12V(GTAW)
70Amps-135Amps (SMAW) 18V-27V(SMAW)
Tungsten Electrode Size and Type : 2.4 mm, EW Th 2
Pulsing Current : None.
Mode of Metal Transfer for GMAW : NA
Electrode Wire feed speed range : NA
TECHNIQUE (QW-408)
String or Weave Bead : String –Root Pass, Weave –Fill & Cap
Orifice or gas Cup Size :4/6/8
Initial and interface Cleaning : Wire brushing /Grinding
Method of back gouging : NA
Oscillation : NA
Contact tube to work distance : NA
Multiple or Single Pass (per side) : Multiple passes.
Multiple or Single Electrodes : Single Electrode.
Travel Speed :50-120 mm/min(GTAW) & 90 – 130mm/min(SMAW)
Peening : NONE.
OTHERS:
Filter Metal Current Travel
Heat Input
Weld Pass Process Class Dia.mm Polarity Amps Volt Range Speed
KJ/mm
Range mm/min
Root GTAW ER70S3 2.4 DCEN 90-110 08-11 50-90 0.5-0.9
Hot GTAW ER70S3 2.4 DCEN 110-140 8-11 90-120 0.5-0.9
FILL SMAW E7018 2.5/3.2 DCEP 80-110 20-27 90-125 1.1-2.2
CAP1 SMAW E7018 2.5 DCEP 80-120 20-27 100-130 1.1-1.4
CAP2
Notes :
1. The number of passes may vary depending on actual thickness of the joint.
2. Maximum weaving permitted is 9mm for GTAW and 2.5 times electrode for SMAW.
3. Bridge/Bar tack shall be used for tacking.
KRANTZ TPI CLIENT
NAME
SIGNATURE
DATE
Welding Procedure Specifications (WPS)
Reference :ASME B31.3,ASME Sec IX and E.S.5.14.0010RA

KRANTZ ENGINEERS W.L.L

You might also like