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Weld Clad hardness

Weld Clad hardness

Weld Clad hardness

(OP)
Hi all,

We are going to manufacture Wellhead equipment with cladded internals(API 6A/Base metal AISI 4130 + Inco 625 cladding).
As per API 6A, hardness testing on cladded surface is required for welding procedure qualification only whereas client is instructing us to carry it on production part cladded surface.

My question is “Does hardness testing is mandatory for cladding after production as per API 6A ?”.

Regards

RE: Weld Clad hardness

Unless it is for PSL 1 loose connector, I think hardness test is mandatory (refer to clause 7.4.2). The test locations are also specified in API 6A. test at cross section seems to be more critical than on the surfaces.

RE: Weld Clad hardness

(OP)
I am referring to clad hardness value; not on bare base metal nor weld hardness.
Regards

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