How easily steel can be hardened by thermal treatment. Generally, as hardenability increases, weldability decreases. Corrosion Resistance:
Greatly enhanced by adding chromium (at least 10.5% for stainless steel) to form a protective oxide layer. Aerospace Structural Research Corp 2. Common Steel Classifications & Specifications Concept and basis of steel metallurgy - Constructalia How easily steel can be hardened by thermal treatment
Steel Metallurgy: Properties, Specifications and Applications as hardenability increases