Elongation in CG8M (317)
Elongation in CG8M (317)
(OP)
Hello all,
I'm having issues with elongation coming under the 25% ASTM A351 spec. Haven't found anything I can credibly go on in a literature review. Physical testing seems to indicate that a Cu content >0.45% is beneficial but there is not enough data to make this definitive. Also postively correlating is a higher Mn content (>1.1%)
HT: 1900 WQ
Thoughts?
Thanks,
lkrzyzan
I'm having issues with elongation coming under the 25% ASTM A351 spec. Haven't found anything I can credibly go on in a literature review. Physical testing seems to indicate that a Cu content >0.45% is beneficial but there is not enough data to make this definitive. Also postively correlating is a higher Mn content (>1.1%)
HT: 1900 WQ
Thoughts?
Thanks,
lkrzyzan





RE: Elongation in CG8M (317)
Jeff
RE: Elongation in CG8M (317)
lkrzyzan
RE: Elongation in CG8M (317)
Raise the anneal temp. You would need many hours at 1950F, I would use 2000F min for this Mo bearing grade.
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