Allowable stress values for ASTM A193 Fasteners

[aumechengr]

Hello,

I am trying to calculate the joint integrity for a flanged connection at 1200 deg F per ASME BPVC Section VIII, Division II, Appendix 3, Article 3-1 . I need the allowable stress values for ASTM A-193/ASME SA-193 Grade 8M fasteners up to this temperature. I have looked in the ASME BPVC and the allowable stresses for the bolts in Table ABM-1 are only given up to 800 deg F. Can anyone provide a table or reference to obtain these values?

Thanks,

aumechengr

 

[TangoCleveland]

In my experience, if a stress isn't given for a Code material past a certain temperature, then that material is not permitted for use above that temperature.

Larry

 

[metengr]

No, there are no allowable stress values published by ASME B&PV Code for B8M bolt material above 800 deg F because of reduced creep strength properties.