Coating on welds prior to hydro test API code

[madhan chozhan]

Dear Experts,

Can you throw some light on the subject? Does any API code specify about the coating requirements on welds prior to hydro testing?

Material - A106 Gr B, A519 Gr 4130.

Thanks,

Madhan

[Materials & Welding]

what is your code of construction?

[k7moorthi]

Hello Mr.Madan,

Kindly refer the snapshot of API-570 , which has been cross referred ASME B31.3 & ASME PCC-2.

[madhan chozhan]

Code of construction  - ASME B 31.3 but need to know if any API code governs the piping construction and related testing requirements.

Thanks,

Madhan

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[pgos...@rogers.com]

API does not have any piping design & construction code. API-570 is on post construction , maintenance and inspection. Hence ASME  B-31.3 is followed commonly for fabrication, inspection and testing.

According  to B 31.3 – Clause  345.3 Preparation for Leak Test

 

345.3.1 Joints Exposed:- (d) All joints may be primed and painted prior to leak testing unless a sensitive leak test (para. 345.8) is required.

345.8 Sensitive Leak Test: The test shall be the Bubble Test.

 

Thanks.

 

P.Goswami.P.Eng, IWE.

Independent  & Consulting Welding & Metallurgical Specialist

Aramco Approved Designated Project Welding Engineer(DPWR)

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

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