17-4

[breaker34]

What is the general or most common type of 17-4 used in the oil and gas industry, mainly in valve design? 17-4PH or another type.

 

[jbeckhou]

we use 17-4ph hh150 for our valve stems. Need to be careful with your choice if NACE requirements are involved.

Petrotrim Services

http://www.petrotrim.com

 

[EdStainless]

It is the PH alloy, either 17-4 or in heavy sections where toughness needed 15-5PH.
Often aged to H1100 or H1150 for better cracking resistance. If you can live with less strength then H1150M overaged is even tougher.

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Plymouth Tube

 

[marcolino21576]

if Nace requirement is applicable, double aging shall be carried out, which means that the condition H1150DBL or H1150M shall be the one applicable

MC