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SB-511

SB-511

(OP)
The specification of chemical composition of SB-511 UNS N08330 (Ni-Fe-Cr-Si Alloy) does not specify of Fe composition just mention Fe remainder. I got a MTR of the above material chemical composition comply but not include the Fe content. But they certify the material is SB-511 UNS N08330. Should I accept the MTR.

RE: SB-511

Is iron (Fe) listed as balance? If so, accept.

RE: SB-511

According to SB-511

Footnote B in Table 2

(B) Element shall be determined arithmetically by difference. This refers to Fe.

RE: SB-511

(OP)
No it does not say balance

RE: SB-511

If it states remainder, the MTR is still acceptable. The iron content can be determined arithmetically by difference.

RE: SB-511

For elements that are listed as rem, bal or ellipsis (...) there is no specification limits.

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