Elevated temperature properties
Elevated temperature properties
(OP)
I am trying to determine the elevated temperature (350 °F) mechanical properties of ASTM A276 UNS S31600, cold drawn stainless steel with Sy=75000 psi and Su=95000 psi. I haven't been able to locate published data for elevated tensile properties of cold drawn material. It has been suggested that the mechanical properties follow the same curve as annealed material. Does this seem reasonable? Also, I'd appreciate any leads to published data if it exists.





RE: Elevated temperature properties
If you have no published data, here is a suggestion that might help you. After giving this some thought, you can use ASME B&PV Code, Section II, Part D, Table 3 for bolting materials. There is an ASTM A 193 Grade B8M or B8M2, where the 316 stainless steel bolt material is solution treated and strain hardened to achieve desired strength properties at RT.
There is a Grade B8M where the yield and tensile are very close to your 316 stainless steel (95 Ksi, UTS, 65 Ksi, YS). In evaluating the allowable stress values for this bolting material at the desired service temperature, the reduction in allowable stress is as follows;
16.3 Ksi at 350 deg F /18.8 Ksi at 100 deg F.
If anything, this at least gives you a knock down factor to work with.
RE: Elevated temperature properties
RE: Elevated temperature properties
Metengr gave you the allowed stresses, if you look in the back of Part D it should give you the actual tensile properties at temperature that those are based on.
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Plymouth Tube
RE: Elevated temperature properties