Industeel Mars 380 (earlier known as Industeel Mars 190) is a low-carbon, Ni-Cr-Mo-V-B, alloy protection steel that is used in the quenched and tempered condition (typical hardness = 380 HBW). It is used as rolled homogeneous armor for ballistic protection and evaluation of armor-defeating ammunition. This datasheet provides information on composition, hardness, and bend strength. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-869. Producer or source: Industeel France.