teräslaji
Teräslaji is a Finnish term used in the metalworking and steel industries to refer to a steel grade or type. It denotes a class of steel defined by its chemical composition and the corresponding mechanical properties, and it is applied in design, manufacturing, and procurement to specify expected performance. The term encompasses carbon steels, alloy steels, and stainless steels, each with characteristic behavior under use and processing.
Etymology and usage: the word teräslaji combines teräs (steel) and laji (kind or type). In Finnish technical
Classification: carbon steels form a broad group with varying carbon content that influences hardness and strength;
Properties and standards: teräslaji classifications guide expected properties such as yield and tensile strength, hardness, toughness,
See also: steel, metallurgy, ferrous alloys, steel grade designation.