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A182-F91 Chemical composition

A182-F91 Chemical composition

(OP)
Hi, I have question for the chemical composition on the material certificate. (Material: A182-F91)
ASTM A182 standard, Table2 shows the chemical composition.
In case of F91 grade, we can see Zr 0.01 "D"
"D": Applies to both heat and product analyses.
If product analysis for the "Zr" is not indicated in material certificate, is it rejectable?

Thank you in advence.

RE: A182-F91 Chemical composition

No. The element was not reported because either it is not present or was below detectability limits.

RE: A182-F91 Chemical composition

If an element is listed in the spec then it must be reported, either as <LD or as <0.01 (or whatever the LD is).

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: A182-F91 Chemical composition

whila
What exactly do you have in terms of information related to the Grade 91 material? I have seen material certificates mean compliance with SA-182 with basic information. Do you have the detailed material or mill test report that provides a complete chemical analysis of the forging?

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