Alloy Steel
UNS K30960, ER90S-B3, ER62S-B3
UNS K30960 is a chromium-molybdenum low-alloy steel welding wire classified under AWS A5.28/A5.28M:2022 as ER90S-B3 (imperial) and ER62S-B3 (metric).
Updated: 3 September 2025
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