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Alloy steels and carbon steels can be designated with specific grades by a four-digit AISI/SAE numerical index system. The system is based on the chemical compositions of the steels and alloys.
- Composition of Steels
Typical composition of AISI steels. Engineering ToolBox -...
- Composition of Steels
standard steel, a range of 0.15 to 0.35%, inclusive, is generally used. Such a steel is identified by inserting the letter “L” between the second and third numeral of the AISI number.
11 lut 2021 · Do you have the best type of steel for your project? Use our chart to help & learn more about the various steel grades, their applications, & ASTM standards.
AISI / SAE Steel Identification Number Chart Table. The following is a simplified general AISI / SAE Steel Identification Number Chart. The values on the left most column are the approximate material content amounts.
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.
The Table chart below gives typical mechanical characteristics for selected properties. For all critical applications, verify to the applicable industry or requisite material / steel standard.
AISI steel grades are usually a four digit number where the first two digits indicate the alloy and the second two the the carbon content. For example 10xx are plain carbon steel, 41xx Chromium Molybdenum Steel and 43xx Nickel Chromium Molybdenum Steel.
