Blueprint — Akm

Technical drawings often specify Steel 30 or Steel 50 (similar to AISI 4130 and 1050) with precise Rockwell hardness ratings between 37 and 50 depending on the part.

Technical drawings often specify Steel 30 or Steel 50 (similar to AISI 4130 and 1050) with precise Rockwell hardness ratings between 37 and 50 depending on the part.