retest and verification of raw material by vessel manufacturer

[YuJie_PV]

Fellew engineers, there is always a question wandering in my head. it is a general question that, as for ASME/EN code, in which occasion, shall the raw material (plate, forgings, etc) be mandated with retest and verification to be performed by vessel manufacturer? i mean chemical analysis, tensile test, and CVN test,etc to be performed.
Please shed some light on this topic, appreciate.
Thanks in advance.

 

[weldstan]

Not in ASME I, VIII, B31.1, B31.3

 

[r6155]

Only when the original mark was not clearly transferred and traceability is in question.

Regards

 

[SnTMan]

Or perhaps you suspect counterfeit material...

Regards

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[0707]

it depends on type of certificates you purchase your raw material

https://blog.projectmaterials.com/project-procurement/mill-test-certificate/

 

[EdStainless]

I have seen it required, but it isn't common at all.
Usually if the service is that critical there was source inspection at the mill and the inspectors marks are clear on the paperwork and metal.

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P.E. Metallurgy, consulting work welcomed

 

[Dhurjati Sen]

You need to put it separately in the purchase order, but that would lead to an in increase in the cost!

DHURJATI SEN
Kolkata, India