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Temperature Derating fcator

Temperature Derating fcator

Temperature Derating fcator

(OP)
Hi

  I am trying ot find the temperature derating factor of the below materials

1. AISI 4140 (YTS 80K PSI)
2. MONEL K500 (YTS 95K PSI)
3. AISI 630 (YTS : 105K PSI)

The specified yeild strength are for ambient temperature. But i am trying to find the yeild strength at 120 degree and i believe it is going to change. Is there a formula or a data sheet or any method for determining the derated yeild strength.

Chellappan
Mechanical Engineer


RE: Temperature Derating fcator

120 deg F or 120 deg C?

RE: Temperature Derating fcator

(OP)
120 degree C

Chellappan

RE: Temperature Derating fcator

I also forgot to mention that Military Handbook, Mil-hdbk-5h, December, 1998 also has excellent information pertaining to strength reduction factors for 4140 and other alloys. You can search for a free copy of this document over the internet, as well.

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