A Brief History of the XM & Current Alloy Naming Systems (UNS)
UNS, XM, AISI, AWS, ASTM, AMS… What do they mean and why are there multiple names for the same materials? There’s often confusion about the naming system and frequent usage of abbreviations in the alloy industry. However, the alloy industry has been getting better after a disorganized start, but the remnants of defunct systems still remain…
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