440C, AMS 5880 vs. AMS 5630J, what is the difference?
440C, AMS 5880 vs. AMS 5630J, what is the difference?
(OP)
I have a manufacturing order using 440C that is stopped. The requirement is 440C per AMS 5880 and the material cert on steel we received says AMS 5630J condition A. Can you please tell me the difference between them? Chemistry? Physicals?





RE: 440C, AMS 5880 vs. AMS 5630J, what is the difference?
RE: 440C, AMS 5880 vs. AMS 5630J, what is the difference?
The alloy composition of AMS 5880 vs AMS 5630 is almost identical: Only the Copper limit of is different - AMS 5880 0.75Cu, AMS 5630 0.5Cu. However depending on which revision of AMS 5630 is specified, depends whether certain NDT and cleanliness requirements have been performed, for example AMS 5630 rev K has ASTM E45 micro-inclusion cleanliness and AMS 2303 MPI testing requirements, whereas AMS 5630 rev L has neither requirements.
If ASTM E45 and AMS 2303 are included in your AMS 5630 rev J to the same level, I would say the differences are negligible.