How to define material grade with NDE?

[Pongsagon]

Gentleman,

There is one underground 90 degree elbow size 34". We do not have the record. We want to define the material grade whether it is A234-WPB or ASTM A860 WPHY 65. Can some body advise the NDE method please? Is PMI(Positive Material Identification)applicable? We can not do tensile test(DE. Thanks.

 

[bmoorthy]

PMI with hardness should give you an idea on what the material is.

 

[Pongsagon]

Could you please advise about the hardness and composition of A234WPB against ASTM A860 WPHY 65 in detail? Thanks a million.

 

[EdStainless]

You will need to use portable OE so that you can get a carbon content.

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Still trying to help you stop corrosion.
formerly Trent Tube, now Plymouth Tube
eblessman@plymouth.com
or edstainless@earthlink.net

 

[stanweld]

Y-65 fitting have mutiple chemistries. Microalloying with Nb & V is often done, Mn is often > 1.2%. WPB fittings are essentially, C + Mn alloys with Mn < 1.0%. Checks for Nb, V, Ti & Mn should provide evidence of material grade.