AISI 4140 Quench & Tempered
Solsteel Pty Ltd can also other steel grades such as 4145 H and 4340.
Our Alloy Steel bars are available Annealed and Quench & Tempered to various hardness levels, though the most common hardness levels are Condition T (HB 248-302) and Condition U (HB 269-331). Our bars are the finest quality and offer excellent machinability.