second hand or new? 531 is just butted steel in today's speak (modern comparison would be Reynolds 520).
second hand or new?
531 is just butted steel in today's speak (modern comparison would be Reynolds 520).
Surely the modern version of 531 is 631. I don't think 520 is heat treated.
@miro_o started
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Surely the modern version of 531 is 631. I don't think 520 is heat treated.