Wps Pip Gtaw - Arabian [PDF]

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AL TAIF AL BAHA WATER TRANSMISSION SYSTEM PROJECT CLIENT : SALINE WATER CONVERSION CORPORATION CONSULTANT : DORSCH GRUPPE CONTRACTOR : ARABIAN PIPELINE PROJECTS CO / JAIHIND PROJECTS LTD JOINT VENTURE

WELDING PROCEDURE SPECIFICATION(WPS) ASME SEC IX

CODE:

WPS-TBWTS-PIP-001

WPS No.:

REV. NO.:

A

PROCESS:

MIPE-1

Supporting PQR No.:

TYPE:

GTAW

10/9/2013

DATE:

MANUAL

BASE MATERIAL & QUALIFIED PRANGES Specification:

ASTM A 106 GR B

TO

API Group No.:

B

TO

C

5.52 mm

TO

5.52 mm

Thickness Welded:

60.3 mm

Pipe Diameter: P number range

P or S No.:

1

ASTM A 106 GR C

60.3 mm

TO Group:

1,2

TO

Material Range:

A 106 Gr (B&C), A 234 WPB, A 105, API 5L Gr(B to X60), A 694(WPHY4260), MSS SP75(F-42 to F60) or eqvlnt to A 106 Gr B, A 106 Gr C, A 234 WPB, A 105, API 5L GrB, X52, X60 or eqvlnt

Diameter Range:

All

Thickness Range:

Groove:

1.5 mm to 11.04 mm

Fillet:

TO

P or S No.:

1

Group:

1,2

A 106 Gr (B&C), A 234 WPB, A 105, API 5L Gr(B to X60), A 694(WPHY4260), MSS SP75(F-42 to F60) or eqvlnt to A 106 Gr B, A 106 Gr C, A 234 WPB, A 105, API 5L GrB, X52, X60 or eqvlnt

All

FILLER METAL

POSITIONS GTAW

SMAW

API Group No.:

5

N.A

Spc. No. (SFA):

5.18

N.A

ER 70S-6

N.A

AWS No. (Class):

6

N.A

2.4 mm

N.A

Electrode Trade Name:

N.A

N.A

Electrode-Flux (Class):

N.A

N.A

Flux Type:

N.A

N.A

F-No.: Size of Filler Metal:

6G - All

Progression

Uphill

POSTWELD HEAT TREATMENT

N.A

N.A

Temp. Range:

N/A

Groove: 11.04 mm

N.A

Time Range:

N/A

Fillet: Unlimited

N.A

Holding period:

N/A

Flux Trade Name: Weld metal Deposit

Position

All F.No 6

Filler Metal Range JOINT

GAS Gas(es)

Mixture

Flow rate

Argon

99.99%

10 - 15 LPM

Trailing:

N/A

N/A

N/A

Backing

N/A

N/A

N/A

Sheilding:

t-Base metal thk PREHEAT Actual

Qualified

Single - V

All

Min. preheating Temp.:

Ambient

Backing

No

either

Max. Interpass Temp.:

250 celsius

BackingMaterial

N.A

N.A

Joint Design

Flame

Method of Heating:

WELDING TECHNIQUE

ELECTRICAL CHARACTERISTICS: Stringe and Weave

Stringer (S) or Weave (W) Bead: Orifice, Nozzle Gas Cup Size:

N.A

Initial and interpass Cleaning:

brushing and grinding

Current: Amps:

SP

Volts:

Mode of Transfer

Multi Pass

Single or Multiple Pass:

Polarity:

Tungsten Electrode Type:

N.A

Method Of Back Gouging:

DC 65 - 110

10 -15 Dia 2.4mm, EW Th2 N.A

Time lapse:

Single

Single or Multiple Electrode: Max Weave

3 Times the electrode dia

Max time lapse between root and hot:

5 to 10 Mins

Travel Speed

refer weld parameters

Max time lapse between other passess:

N.A

TYPICAL WELDING PARAMETERS Layer

AWS Class

Electrode

Polarity

Size

AMPS

VOLTS

Root Hoot Filling Cap

A 5.18 A 5.18 A 5.18 A 5.18

ER 70S-6 ER 70S-6 ER 70S-6 ER 70S-6

DC SP DC SP DC SP DC SP

2.4 2.4 2.4 2.4

65 - 75 80 - 90 80 - 100 90 - 110

10 - 15 10 - 15 10 - 15 10 - 15

Prepared By Name Signature Date

Form No: APPCO-TBWTS-F-001 Rev 0

Travel Speed in Heat Input Cm /Min Kj / Min 0.84 - 0.98 4-8 0.8 - 1.01 6-8 0.6 - 0.9 8 - 10 0.7 - 1.00 8 - 10 Approved By

Name signature Date

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