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  • Users: voelfo
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  1. voelfo

    ASTM A276 316 vs ASTM A182 316

    I have noticed that the bill of material for many API 603 valve manufactures specifies a ASTM A182 316 stem material. However in API 600 trim designations, the stainless trim stem material recommended is ASTM A276 316. I am curious why the deviation for API 603 valves? Is there some corrosion...
  2. voelfo

    Nitrided CF8M corrosion resistance

    I am curious if anyone has any experience with NI hardened CF8M in amine service. I am aware that nitrided SS has decreased corrosion resistance but cant find any information on if it is still suitable for some services. Also if if NI hardened CF8M has begun to rust will it continue or is the...

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