This document provides a welding procedure specification (WPS) for shielded metal arc welding (SMAW) of groove and fillet joints in carbon steel piping. The WPS specifies the base and filler metals, joint design, welding positions, techniques, parameters, and qualifications. Welding will be performed manually with E7018 electrodes in the vertical up position for groove welds and all positions for fillet welds. Preheating is required for material over 25mm thick.
This document provides a welding procedure specification (WPS) for shielded metal arc welding (SMAW) of groove and fillet joints in carbon steel piping. The WPS specifies the base and filler metals, joint design, welding positions, techniques, parameters, and qualifications. Welding will be performed manually with E7018 electrodes in the vertical up position for groove welds and all positions for fillet welds. Preheating is required for material over 25mm thick.
This document provides a welding procedure specification (WPS) for shielded metal arc welding (SMAW) of groove and fillet joints in carbon steel piping. The WPS specifies the base and filler metals, joint design, welding positions, techniques, parameters, and qualifications. Welding will be performed manually with E7018 electrodes in the vertical up position for groove welds and all positions for fillet welds. Preheating is required for material over 25mm thick.
This document provides a welding procedure specification (WPS) for shielded metal arc welding (SMAW) of groove and fillet joints in carbon steel piping. The WPS specifies the base and filler metals, joint design, welding positions, techniques, parameters, and qualifications. Welding will be performed manually with E7018 electrodes in the vertical up position for groove welds and all positions for fillet welds. Preheating is required for material over 25mm thick.
QW-482 WELDING PROCEDURE SPECIFICATION (WPS) (See QW-200.1,Section, IX, ASME Boiler and Pressure Vessel code ) PW.P.S. NO. : S-001 Supporting PQR(s) 001 POSTWELD HEAT TREATMENT (QW-407) ELECTRICAL CHARACTERISTICS (QW-409) Revision No.: 0 Welding Process(es): SMAW .1 Ø Type of PWHT: NONE .4 (a) Ø Current (AC or DC): SEE BELOW Date: 30/04/2019 Type(s): MANUAL .2 (a) Temperature Range :(°C) NA .4 (b) Ø Polarity (EN or EP): SEE BELOW Equipment Name: Joint Type: GROOVE/FILLET .2 (b) Time Range:(Minute) NA .8 (a) Ø Amperes (Range): SEE BELOW JOINTS (QW-402) Method of PWHT: NA .8 (b) Ø Voltage (Range): SEE BELOW .1 Ø Joint Design: AS PER DRAWING Typical: .4 T Limits NONE .1 > Heat Input : NA .4 - Backing: (Yes/No) Yes Rate Of Heating:(°C/hr) NA Others : NA Backing Material (type): WELD/BASE METAL Rate Of Cooling:(°C/hr) NA .10 Ø Root Spacing AS PER DRAWING Others : NA .11 ± Retainers : NA GAS (QW-408) Root face & Included Angle: 1-2 mm & 60° P1 G2 Back Chipped & Rewelded P1 G1 Gas(es) Mixture & Composition Flow rate (LPM) BASE METALS (QW-403) Shielding Gas: NA NA NA MATERIAL - 1 MATERIAL - 2 Backing Gas or Backing Flow: NA NA NA .11 Ø P.NO.: 1 P.NO.: 1 Trailing Gas or Comp: NA NA NA .5 Ø Group No.: 2 Group No.: 1 Backing Gas or Comp : NA NA NA Specification/Grade: SA516GR70 Specification/Grade: SA516GR60 Shielding or Trailing : NA NA NA .8 ØThickness Range : (mm) TECHNIQUE (QW-410) Base Metal Groove : 5-32 Fillet : ALL Tubesheet: NA .1 Ø String/Weave Bead: STRING/WEAVE (WEAVING SHALL NOT EXCEED 3 TIMES THE ELECTRODE CORE DIA) Pipe Dia Range Groove : ALL Fillet : ALL Ligament: Width : NA .9 Ø Multi/Single pass (per side): MULTI PASS Overlay thickness (Min): NA Tube thickness: NA .10 Ø Multiple/Single Electrode: SINGLE .6 T Limits : NA .9 t Pass> 12.7 mm EACH PASS THK < 6 mm .26 ± Peening: NA FILLER METALS (QW-404) .5 Ø Initial or Interpass WIRE BRUSH OR GRIND/MACHINED ;SURFACE TO BE GROUND ROOT PASS FILL UP PASS(es) COVERING PASS(es) Cleaning: OR POWER WIRE BRUSHED OR MACHINED .4 Ø F.NO.: 4 4 4 .6 Ø Method of Back Gouging: BY AIR ARC GOUGING, MACHINING ,GRINDING etc .5 Ø A.NO.: 1 1 1 .25 Ø Manual or Automatic MANUAL Spec No.(SFA): 5.1 5.1 5.1 .64 Ø Use of Thermal Process : NONE .12 & .33 Ø AWS No.(Class): %E7018 %E7018 %E7018 Others : NA .6 Ø Size of Filler Metal (mm): 3.2,4.0,5.0 3.2,4.0,5.0 3.2,4.0,5.0 Filler Metal Current Travel Energy or Maximum Minimum Weld Volt .7 Ø Diameter > 6 mm NA NA NA Process Dia. Type & Amp. Speed Power Heat Input Bead Length Layer(s) Classification (Range) .30 Ø Weld Metal Thk Range: UPTO 20 mm (MAX) (mm) Polarity (Range) (mm/min) (Range) (KJ/mm) (mm) Chemical Composition: NA AS REQ SMAW E7018 3.2 DCEP 100-140 22-28 AS PER PQR NA 1.5 150 Brand Name : % E7018 OF APPROVED BRAND SHALL BE USED AS REQ SMAW E7018 4.0 DCEP 150-180 22-28 AS PER PQR NA 1.5 180 Other : NA AS REQ SMAW E7018 ^ 5.0 DCEP 200-240 22-28 AS PER PQR NA 1.5 200 POSITIONS (QW-405) .1 + (a) Position(s) of Groove : ALL .2 & .3 Ø Welding Progression : VERTICAL UPHILL NA : NOT APPLICABLE NONE : ESSENTIAL VARIABLE BUT NOT USED .1 + (b) Position(s) of Fillet : ALL Legend : Other: NA + Addition > Increase/greater than ↑ Uphill ← Forehand ø Change PREHEAT (QW-406) -Deletion < Decrease/less than ↓ Downhill → Backhand Thickness Range (mm) ≤25 > 25-38 .1 Preheat Temp (MIN)⁰ C : 25 100 .3 Interpass Temp (MAX)⁰ C: 275 275 ^ FOR USE IN FLAT/HORIZONTAL POSITION ONLY Preheat Maintenance : NA Method of measuring .1 & .3 Temperature indicating crayon / Laser gun PREPARED BY: WELDING ENGINEER REVIEWED BY: WELDING MANAGER APPROVED BY: CLIENT/CUSTOMER/TPI ASME DESIGNATOR NAME: NAME: NAME: REQ. DATE: DATE: DATE: NOT REQ.