Are these bolts impact test exempt per UHA-51(d)(1)(a) to -320 deg F? I assume the bolts are thermally treated above 1650 deg F per UHA-51(c)(1) even though the material specification does not give a solution anneal temperature. I have asked for our bolt supplier to provide more information since I do not see a solution anneal temperature on any of the MTR's we have been provided.
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SA-193 B8 Cl.2 & SA-193 B8M Cl.2 Bolts - UHA-51(c)(1) & UHA-51(d)(1)(a)
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