NICKAL spare key ACC/4732/CLE for model 5171.08F./AS

Steel is an iron-carbon alloy with a maximum carbon content of 2% by mass. The steels achieve their intended physical and mechanical properties through various hardening, annealing and tempering processes. It is also possible to harden the edge zone by surface hardening, case hardening or nitriding. Well-known steel grades are structural steels, free-machining steels, case-hardening steels, nitriding steels, tempering steels, tool steels and stainless steels.

Electroplating is a so-called electrolytic process. The coating is applied in accordance with the DIN EN ISO 4042 standard.