wps-A53-gtaw-R00 -

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AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A

QA/QC

WELDING PROCEDURE SPECIFICATION (WPS)

Welding procedure specification no. Supporting PQR no. Welding process

CODE:

QC/WPS/07 GTAW

ASME IX 

Revision no. Revision no. Type(s)

API 1104

BASE METALS (QW-403) P. No. 1 Group no.

Date: 0

18/05/2014

Date 18/05/2014 Date MANUAL

AWS D1.1

1&2

to

P. No.

Others 1

Group no.

Specification type and grade

ASTM A53 Gr. B or EQUIVALENT

To specification type and grade

ASTM A53 Gr. B or EQUIVALENT

1&2

Or Chemical Analysis and Mech. Prop. to Chemical Analysis and Mech. Prop.

Thickness Range: Base Metal Pipe Dia. Range Other

1.5mm – 12.04mm All

Groove Groove

JOINTS (QW-402) Joint Design Backing

N/A

A C

B D

FILLER METALS (QW-404) F. No. 6 Other

Unlimited Unlimited

Single bevel, ‘V’, ‘J’ or ‘U’ Type

none

Details

A – 35º ± 2 º B – 10.97 C – 1.5 ± 0.5 D – 3.2 ± 0.8

Fillet Fillet

None

All Dimensions are in mm

A. No.

Spec No. (SFA) AWS No. (Class) Size of filler metals Electrode flux (class)

1

Other

none

5.18 ER70S-2 Dia. 2.4mm N/A N/A

Consumable insert

TECHNICAL APPROVAL Al JALHAMI CONT. & TRAD. CO. Name

APPROVED BY KJO(AGOC/KGOC) Name

Signature

Signature

Date

Date

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AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A

QA/QC

WELDING PROCEDURE SPECIFICATION (WPS) Date: 18/05/2014 POSITION (QW-405) POST WELD HEAT TREATMENT (QW-407) POSITION(S) or groove All Positions Temperature range None Up 

Welding progression position(s) of Fillet

Down

All Positions

PREHEAT (QW-406) Preheat Temp. min. Interpass Temp. max.

10°C 250°C

Preheat maintenamce

N/A

TECHNIQUE (QW-410) String or Weaving Bead

Time range

N/A

Heating rate

N/A

cooling rate

GAS (QW-408) Shielding gas(es) % composition (mixtures)

Argon 99.9% lp N/A

Flow rate Gas backing Trailing shielding gas composition

Root: String, Fill/Cap: Weave

N/A

Max. weave width

Orifice or Gas Cup Size

N/A

3 times electrode Dia.

N/A

Initial And Interpass Cleaning

Brushing and/or Grinding

Method of Back Gouging

N/A

Oscillation

N/A

Contact Tube to Work Distance

N/A

Multiple or Single Pass (Per Side)

Multiple

Multiple or Single Electrodes

Single

Travel Speed (Range)

80-120 mm/min

Peening

N/A

Other

N/A

ELECTRICAL CHARACTERISTICS (QW-409) Current AC or DC DC AMPS (range) 80 to 120 Amps

Polarity Volt(range)

Tungsten electrode size and type

Straight / EN 15-25 Volts

2.4 mm, EWTH-2% Thoriated

Mode of metal transfer for GMAW

N/A

Electrode wire feed speed range

N/A

Filler metal Class Dia. (mm)

Weld Layer

Process

Root

GTAW

ER70S-2

Hot

GTAW

Fill Cap

Current

Volt range

Travel speed (mm/min)

Type

Amp

2.4

DCEN

90-120

15-20

80-120

ER70S-2

2.4

DCEN

100-150

15-25

80-120

GTAW

ER70S-2

2.4

DCEN

100-120

15-25

90-150

GTAW

ER70S-2

2.4

DCEN

90-110

15-20

70-120

Other