Welding Proposed Pwps For Our Jubail Work [PDF]

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Welding Procedure Specification (PWPS)

LIMAK/SAWAED

JACOB JATE/SWCC

WPS No: WPS-JR1

Revision:00

Date:01/11/2019- Project: -Jubail Riyadh Water Transmission System (Stations)

PQR No:01

Revision:00

Date:

Code: API 1104/ASME 31.4

Welding Process(es): SMAW

COMPANY: SAWAED ENGINEERING

Page:01

Type(s): MANUAL

Materials: -API 5L-PSL2-Grade L245/X52/X60

JOINTS (QW-402)

Third Party Agency: Al-HOTY CO.

WELD JOINT DESIGN

Joint Design: Single V Groove-But Joint Backing: Yes / No--No Backing Material (Type): N/A No fusing Metal:

Base Metal:

Overlap Weld Metal:2(+/-0.5mm)

Nonmetallic: N/A Root Opening:2-4mm

Root Face:1.5-2.5 mm

Groove Angle:30-35 Degree Back Gouging: N/A

Radius (J-U): N/A

GAS: (QW-408) (ASME SEC IIC SFA-5.32) Gas(es):

BASE METAL: (QW-403) P No.Group No.-

Shielding

01 02

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Trailing: Backing:

Thick. Range :6mm-19.5mm

Percent Composition: Mixture: flow rate:

ELECTRICAL CHARACTERISTICS: (QW-409)

Base Metal: (QW-451.1)

Current AC or DC: AC/DC

Polarity: DCEP

Amps .(Range): See Table 01

Pipe Dia. Range: >12.75Inch

Volt .(Range): See table 01

Chemical Analysis: -0.21% max

Tungsten Electrode Size and Type/N/A Mode of Metal Transfer for GMAW: N/A

FILLER METAL: (QW-404)

Electrode Wire Feed Speed Range: SEE TABLE 01

Spec.No.(SFA):5.5

AWS NO.(Class): A 5.1

F-No: 04

A-No: - 01

Heat input Allowance: SEE TABLE 01

Size of Filler Metals: Root 2.43.2mm Hot/Fill/Cap- 4.0-5.0mm Filler Metal Electrode- E6010/E7018/E7010

Weld Metals: Deposited Thickness

WELDING TECHNIQUE: (QW-410)

Groove: V Groove

Stringer/Weave Bead: Strings/Weaves

Brand: Lincoln/Esab/Hyundai

Fillet: N/A

Orifice or Gas Cup Size: N/A

Consumable Insert: N/A

Initial & Interpass cleaning : Brushing/Grinding Method of Back Gouging: N/A

POSITIONS: (QW-405)

No. of Welder: 2

Position of Groove: 45 Degree

Time between root and hot Pass: -10 Minutes

UP Hill /Down Hill--Downhill

Welding Progressions:5G/6G

Multiple or Single Pass (per side): Multiple

Position(S) of Fillet: N/A

Multiple or Single Electrodes: Multiple

PREHEAT (QW-406)

Travel Speed (Range): Refer table

Preheat Temp.Min: 15 Degree Centigrade Preheat Temp. Maximum: -N/A

Clamping: External

Inter Pass Temp.Max: 150-250 Degree Centigrade

Overlap Weld on toe: 2(+/-0.5mm)

Preheat Maintenance: YES

WELDING PROCEDURE: TABLE-01 Filler Metal Pass

Joint Details

Current

Process Class

Dia

Polarity

Volt

AMP

26-28

85-95

ROOT PASS

SMAW

E6010

2.4.-3.2

DCEP

HOT PASS

SMAW

E7018

4.0-5.0

DCEP

21-24

85-115

FILL PASS

SMAW

E7018

4.0-5.0

DCEP

21-24

115-140

FILL PASS

SMAW

E7018

4.0-5.0

DCEP

21-24

115-140

CAP

SMAW

E7010

4.0-5.0

DCEP

27-29

110-125

PASS

RUN SEQUENCE

Heat Input (kj/mm)

Travel Speed (mm/min)

30º-35 2 (±0.5)

6-19.5mm

WELD PROGRESSION-DOWNHILL FOR ALL PASSSES

1.Fit Up 2.Welding*/Cleaning 3.Visual Inspection 4.NDT (RT, UT, PT, MT) ** *: Distortion Control Shall be Consider. ** As Per Quality specs and Documents (QCP) Prepared By: SAWAED ENGINEERING

Checked &Approved By: QA/QC SAWAED ENGINEERING

Engineer Ugur Berk Urkun

Engineer Md Sazid Alam (QA/QC)

Contractor/Client: LIMAK Approved By

(2-4mm)

(1.5-2.5mm))

Client: Jacob/Turbag Consulting Engineers/APPROVED BY