Very Urgent Requirement on Welding Electrode & Filler Rod Selection

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Engr. Asif Chowdhury

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Jan 3, 2021, 10:47:21 PM1/3/21
to Materials & Welding
Dear All Concern,

Please help me selection for welding of pipe materials as per following spec:

Pipe Spec: 

1. NB: 750 mm; WT: 25.4 mm; API 5L -X65M, PSL -2, LSAW, ASTM B36.10M

2. NB: 200 mm; SCH: XS; API 5L -X65M, PSL -2, SMLS, ASTM B36.10M

3. NB: 100 mm; SCH: XS; API 5L -X65M, PSL -2, SMLS, ASTM B36.10M

Minimum Yield Strength of Pipe : 450 MPa

Ultimate Tensile Strength of Pipe : 535 MPa

My client wants me to do GTAW for Root & Hot passes and SMAW for Filling & Capping Passes. 

I wish for everyone's sound health and sound mind. 

Thanks In Advance,

Md. Asif Al-Istiaque Chowdhury
Manager (Project Sales & Operation)
WhatsApp No.: +88 01925-884133

The Royal Utilisation Services (Pvt.) Ltd.
(An ISO 9001:2008 Certified Company)
House # 383 (3rd Floor), Road # 28,
New DOHS, Mohakhali, Dhaka-1206, Bangladesh.

Dinesh Gaur

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Jan 3, 2021, 11:18:46 PM1/3/21
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Dear Asif
       you may use below electrodes for given materials.

1- GTAW  - ER80S-B2
2- SMAW  - E8018G


Regards
Dinesh Kumar Gaur

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Ganesh Muthurajan

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Jan 4, 2021, 3:01:49 AM1/4/21
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Hi dear,

API 5L. X65 having

Max tensile - 65k mpa
Max yield - 58k mpa

We can go for 
ER 70S-6 & E7018

This both having
Max tensile - 70k
Max yield - 58k

Impact requirement - 20C 

Containing
C - 0.06%
Mn - above 1%
Si - 0.80%

Do the is adorable quality and cost.





Ganesh,
QCI Welding.

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