What is Stainless Steel?
It is an iron alloy containing ≥ 10.5% chromium and ≤ 1.2% carbon in the required amount to ensure the formation of a self-assembled and corrosion-resistant surface layer (passive layer).
Stainless Steel Types:
Austenitic: Iron-chromium-nickel, carbon < 0.1% (including quality 1.4301/304, often referred to as 18/8; 18/10), non-magnetic as offered for sale; Its share in world stainless use is > 65%.
Ferritic: Iron-chromium, carbon < 0.1%, magnetic.
Martensitic: Iron-chromium, carbon > 0.1%, magnetic and hardenable.
Duplex: Iron-chromium-nickel, combined austenitic-ferritic structure, magnetic.