AISI S-7

Material

AISI S-7

S7 steel is a specialty shock steel that is typically used for products that take impact, such as knives. It is typically hardened to 55-57 RC. It does not have the wear resistance of the other tool steels but has the ability to withstand impact.


Typical Chemistry

C 0.53
Si 0.30
Mn 0.70
Cr 3.20
Mo 1.50
S 0.005 max

Tempering Curve Graph

Tempering graph