Dear members,
I would like to know more about AISI 307 which is being used by certain suppliers as a seating of valves. The suppliers are not able to give the exact ASTM references, but they say it is ...more or less....equivalent to X15CrNiMn188(1.4370) of DIN. However I found this DIN material being used generally to make check valve pins. I am having doubt if it is a precipitation hardened steel category(which is usually prescribed for stem/disc/ball/blade/diffuser materials requiring high strength) or a something related to welding rods.
From my search it looks more of a welding overlay material. However I could not find any ASTM specification reference of it. Can somebody specify the same for me to check out the details.
With regards,
Kannan Sundaram. --~--~---------~--~----~------------~-------~--~----~
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