It is a steel with high yield strength, treated with aluminum, with a fine-grained, low-alloy structure, a hollow bar that, due to its chemical balance, presents good machinability and to those where it is necessary to confer a high hardness on the surface and to counteract wear caused by contact dynamic metal - good weldability; ideal for the manufacture of high volume parts, in which a hard surface with a tough core may be required, The main applications are destined metal.

Some applications are aimed at the manufacture of gears, crowns, augers, bushings, bearing tracks, among others, it can be replaced by 1018 AISI, with the risk of reducing its mechanical resistance; or when replaced by 8620 AISI, it will result in greater mechanical strength.