Alloy 20 Impacts

[weldtek]

Based on the fact that this material is exempt to -325F in Sec VIII UNF, I'm thinking 15/12 at -160F should not be a problem. Any thoughts?

 

[metengr]

weldtek;
Agreed, probably 100 ft-lbs at -160 deg F for this alloy in an annealed condition.

 

[EdStainless]

Considering that you should have about 200 ft-lb CVN at RT, and that I have seen cryo tensiles with nearly 50% elongation I would suspect that you will see good low temp impacts.

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[weldtek]

Thanks for the input. Our customer has asked for impacts even though its exempt and, for some reason our material vendor is taking the 'for information only' stance.