A number of casting standards (including ASTM A216) specifies testing on separately cast sample (keel block). How much will these represent the casting? If I take a sample from actual casting and it fails (it failed) and the supplier says he has tested the keel block and it passed then what is my locus standii ? In fact for the material inder dispute the chemical itself is so low that passing of the mech testing I feel is doubtful (C 0.13%, all other also very low, including Mn<0.3, Ni, Cr at <0.1) for ASTM A216 Normalised condition.
The chemical for these only provides max values and not minimums.
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Casting Standards
Re: Castings mechanical Test
