Designing of Steel Type

Designation was hitherto governed by DIN 17006. These norms have been outdated. Until corresponding ISO norms have been fixed, however, symbols for materials will continue to be based on the system specified in DIN 17006.

A complete characterization consists of three parts, specifying method of production, composition and treatment.

Method of production is specified by alphabets alone. These tell us about the method of smelting, as well as about properties resulting from the method in question.

Composition is specified by alphabets and numbers. These tell us about working, characteristics, tensile strength, chemical composition and/or quality class.

Treatment is specified by alphabets and numbers. These tell us about reforming, stats of heat treatment and extent of guarantees.

Materials can be briefly and accurately designated by steel standard symbols

Alloying Element Limiting content in percentage by Weight

Aluminum, Al	0.10
Chromium, Cr	0.30
Cobalt, Co	0.10
Manganese, Mn	0.80
Nickel, Ni	0.30
Silicon, Si	0.50
Titanium, Ti	0.05
Tungsten, W	0.10
Vanadium, V	0.10

Other articles:

• Standardization of Metalic Material
• Steel Structure Inspection