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Wps Smaw

1. This welding procedure specification outlines the parameters for SMAW welding of a 6-inch diameter API 5L Grade X52 pipe with 0.72-inch wall thickness in the 6G position. 2. The root, hot, fill, and cap passes will be completed with Elga P 62MR electrodes in the range of 80-200 amps and 20-26 volts. 3. Additional details include requirements for joint design, preheat and interpass temperatures, welding directions, and consumable specifications.

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FedericoC
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4K views1 page

Wps Smaw

1. This welding procedure specification outlines the parameters for SMAW welding of a 6-inch diameter API 5L Grade X52 pipe with 0.72-inch wall thickness in the 6G position. 2. The root, hot, fill, and cap passes will be completed with Elga P 62MR electrodes in the range of 80-200 amps and 20-26 volts. 3. Additional details include requirements for joint design, preheat and interpass temperatures, welding directions, and consumable specifications.

Uploaded by

FedericoC
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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PROPOSED WELDING PROCEDURE SPECIFICATION pWPS No: LTS 8

Maintain Potential Facilities Offshore Long Term Agreement Project DATE: 17-Dec-09

G R O U P
CJP, SMAW Welding REV: B1

WELDING SPEC. : SAES-W-013 & AWS D1.1 JOINT DESIGN


SUPPORTING PQR’s : A = 45° (+ 20° - 5°)
AS WELDED

MATERIAL SPEC. : API 5L B = 30° (+ 20° - 5°) A


GRADE / TYPE : API 5L GR. X52 R = min. 2 mm
DIAMETER : Ø6" F = 1 - 3 mm B

WALL THICKNESS : 0.72” (18.3 mm)


WELDING POSITION : 6G
WELDING DIRECTION : VERTICAL UP t

GRADE / TYPE : AWS D1.1 GROUP I & II F


DIA. QUALIFIED : Ø ≥ 6” (168.3 mm)
NOMINAL THK. QUALIFIED : 9 to 36.6 mm (3/8” to 1” 7/16) R

WELDING POSITION : ALL POSITIONS - UPHILL PROGRESSION WITH OR WITHOUT BACKING


PREHEAT TEMP. : 65°C MIN
QUALIFIED RANGE

INTERPASS TEMP. : 65°C - 250°C MAX FILLING SEQUENCE


PREHEAT METHOD : PROPANE 1 - ROOT
MEASUREMENT BY : DIGITAL THERMOMETER / TEMPILSTIK 2 - HOT
PWHT : N/A 3 - FILL
: SINGLE SIDE BUTT WELD AND FILLET WELD CAP
JOINT TYPE
PREPARATION METHOD : CUTTING OR GOUGING, GRINDING F ILLS

ALIGNMENT METHOD : TACK WELD MAY BE USED IF NECESSARY


3
ALIGNMENT REMOVED : N/A
2
CLEANING METHOD : GRIND / POWER BRUSH / HAND TOOLS
1
CONSUMABLES
: Elga P 62MR: AWS 5.5 E7018-G
CLASSIFICATION

PASS WELDING CONSUMABLE DIA. DC FLUX/ GAS AMPS VOLTS WFS OSC. TRAVEL HEAT
PROCESS +VE/ GAS FLOW PER SPEED INPUT
WELDING PARAMETERS

(mm) -VE TYPE (l/min) (m/min) MIN (cm/min) (kJ/mm)


ROOT SMAW Elga P 62MR 3.2 -VE N/A N/A 80 - 150 20 - 24 N/A N/A 4-5 ---
HOT SMAW Elga P 62MR 3.2 +VE N/A N/A 80 - 150 20 - 24 N/A N/A 5-6 ---
FILLS SMAW Elga P 62MR 3.2 +VE N/A N/A 80 - 150 20 - 24 N/A N/A 5-9 ---
FILLS SMAW Elga P 62MR 4.0 +VE N/A N/A 140 - 200 22 - 26 N/A N/A 5-9 ---
CAP SMAW Elga P 62MR 3.2 +VE N/A N/A 80 - 150 20 - 24 N/A N/A 7 - 10 ---

1. THIS WPS IS QUALIFIED ALSO FOR FILLET AND PJP WELDS OF ANY SIZE, FOR ANY THICKNESS OR DIAMETER (AWS D1.1, TABLE 4.2, NOTE D).
2. STRING / WEAVE BEAD. MAXIMUM BEAD WIDTH 3 TIMES ELECTRODE DIAMETER.
ADDITIONAL INFORMATION

3. TRAVEL SPEED CALCULATED FROM BARE PIPE EXTERNAL SURFACE.


4. PREHEAT TEMPERATURE IS MEASURED 75mm AWAY FROM BEVEL EDGE AND INTERPASS TEMPERATURE ON BEVEL EDGE.
5. IF REQUIERED, TACK WELDING SHALL BE PERFORMED AFTER PREHEAT OF THE PIPE BY QUALIFIED WELDERS, USING PARAMETERS OF THE ROOT PASS. BULLET
TACK WELDING MATERIAL TO BE MADE FROM BASE METAL MATERIAL.
6. FORCED AIR / WATER COOLING OF COMPLETED WELD FROM BELLOW 200°C MAY BE USED TO FACILITATE NDT EXAMIINATION.

3RD PARTY

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