Forged Nuts and Bolts
Forged Nuts and Bolts
(OP)
Can forged Nuts and Bolts eg A182 UNS 31803 be used for valves ? As I understand, the bolts and nuts are special items that will need special heat treatment suchas quenching for surface hardness for the threads.
In case vendor offers forged bolts, is it acceptable ?
In case vendor offers forged bolts, is it acceptable ?





RE: Forged Nuts and Bolts
You mention 'valves' without referring to any actual valve standard or requirement. The actual standard or end-users description/requirements is what sets the limits to what is allowed.
Forged material bolts in good quality (quality control and/or tests certificates?) could under circumstances be at least as good as non-forged bolts.
If fabrication methode is not described in the requirement, and the bolts cover the other quality requirements (material, strength, dimension etc. etc.), I can see no reason that forged bolts could not be used.
RE: Forged Nuts and Bolts
RE: Forged Nuts and Bolts
Then if the offered bolts comply with the specifications they are OK, with any deviation they are not.