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QW-482 WELDING PROCEDURE SPECIFICATIONS (WPS)

(See QW-200.1, Section IX, ED-2021, ASME Boiler and Pressure Vessel Code)
Company Name: M/s. TURBO TECH

Welding Procedure Specification No: TT/WPS-39, Dt: 21.10.2022

Date Supporting PQR No.(s): TT/PQR-39, Dt: 15.10.2022

Reference Code: ASME Section – IX

Welding Process(es) :GTAW Type(s): Manual

Automatic, Manual, Machine, or Semi-Automatic)

JOINTS (QW-402) Details

Joint Design: Double-V Butt Joint

Root Spacing: 2-3 mm

A182, Gr.316, 20 THK
AISI 410, 20 THK

Backing: Yes / No: Yes

Backing Material (Type): Weld Metal

(Refer to both backing and retainers)

(X)Metal

( )Nonmetallic

( )Non fusing Metal

Other: None

[At the option of the manufacturer, sketches may be attached to illustrate joint design, weld
Sketches, Production Drawings, Weld Symbols, or Written Description should show the general arrangement
layers, and bead sequence (e.g., for notch toughness procedures, for multiple process
of the parts to be welded. Where applicable, the details of weld groove may be specified.
procedures, etc.)]

*BASE METALS (QW-403)

P-No: 6. Group No: 1. To P-No: 8. Group No: 1.
OR
Specification and type/grade or UNS Number: AISI 410 (UNS No: S41000)
To Specification and type/grade or UNS Number: ASTM A182 Gr.316
Chem. Analysis and Mech. Prop: NA.
To Chem. Analysis and Mech. Prop: NA.
Thickness Range:
Base Metal: Groove: Min: 05 mm, Max: 40 mm Fillet: All Sizes.
Maximum Pass Thickness ≤ 1/2 in. (13 mm) (Yes): ≤ 13mm.
Other: NA
*FILLER METALS (QW-404) 1 2

Spec. No. (SFA) 5.9

AWS No. (Class) ER309

F-No. 6

A-No. 8
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QW-482 WELDING PROCEDURE SPECIFICATIONS (WPS)
(See QW-200.1, Section IX, ED-2021, ASME Boiler and Pressure Vessel Code)
Size of Filler Metals Ø 1.6mm & Ø 2.5mm

Filler Metal Product Form Bare Electrode (Solid)

Supplemental Filler Metal NA

Weld Metal 20mm + 2mm

Thickness Range:

Groove Min: 5mm Max: 40mm

Fillet All Sizes

Pipe Dia 2 7/8” & Above

Electrode-Flux (Class) NA

Flux Type NA

Flux Trade Name NA

Consumable Insert NA

Others: NA

Each base metal-filler metal combination should be recorded individually.

WPS No: TT/WPS-39, Dt: 21.10.2022, Rev No: 0

POSITIONS (QW-405) POSTWELD HEAT TREATMENT (QW-407)
Position(s) of Groove: All Positions Rate Of Heating: 80 ˚C/Hr Rate Of Cooling: 72 ˚C/Hr
Welding Progression: Up: for 3G Down: NA Soaking Temp: 650 ˚C Soaking Time: 150 Min.
Position(s) of Fillet: All Positions Other: NA
Other: NA GAS (QW-408)
PREHEAT (QW-406) Percent Composition
Gas(es) Flow Rate
Preheat Temperature: 200°C (Mixture)
Inter pass Temperature, Maximum:280°C Shielding Argon 99.99% 8-15 LPM
Preheat Maintenance; 200°C To 280°C Trailing NA NA NA
Other : NA Backing NA NA NA
(Continuous or special heating, where applicable, should be recorded) Other NA NA NA
ELECTRICAL CHARACTERISTICS (QW-409)
Filler Metal Current Wire Feed Energy or Travel
Weld Amps Volts Other
Process Type and Speed Power Speed
Pass(es) Classification Dia (Range) (Range) s
Polarity (Range) (Range) (Range)
Root GTAW ER309 Ø1.6 DCEN 95-115 NA NA 19-25 50-60 mm/min NA
Hot Pass GTAW ER309 Ø2.5 DCEN 110-140 NA NA 23-27 50-65 mm/min NA
Capping GTAW ER309 Ø2.5 DCEN 140-190 NA NA 24-27 50-70 mm/min NA
Amps and volts, or power or energy range, should be recorded for each electrode size, position, and thickness, etc.
Pulsing Current: NA Heat Input (max.):--
Tungsten Electrode Size and Type : Φ 3 mm 2%Thoriated
(Pure Tungsten, 2% Thoriated, etc.)
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QW-482 WELDING PROCEDURE SPECIFICATIONS (WPS)
(See QW-200.1, Section IX, ED-2021, ASME Boiler and Pressure Vessel Code)
Mode of Metal Transfer for GMAW (FCAW); NA
(Spray Arc, Short Circuiting Arc, etc.)

Other:
TECHNIQUE (QW-410)
String or Weave Bead: Stringer & Weave
Orifice, Nozzle, or Gas Cup Size: 6 & 8
Initial and Interpass Cleaning (Brushing, Grinding, etc.): Brushing & Grinding
Method of Back Gouging: Grinding
Oscillation: NA
Contact Tube to Work Distance: NA
Multiple or Single Pass (Per Side): Multiple
Multiple or Single Electrodes: Single
Electrode Spacing: NA
Peening: NA
Other: NA
Prepared By: Approved By:
Signature: Signature:
Name: Name: Mohammed Afroz Khan

Date: 21.10.2022 Date: 21.10.2022