Hot tensile test at temperature 550 deg. celcius

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Oct 8, 2015, 7:52:10 AM10/8/15

to Materials & Welding

Dear Experts,

Hot tensile test has given in ASME Sec II part D upto 525°C for all material.

In our case design temperature is 550°C.(material 1.25Cr 0.5 Mo-Si SA -335)

Question : what is the acceptable tensile/yield values above 525°C? (code allows only interpolation not extrapolation)

Regards

Selastine Sudhakar

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