Introduction to the SAE-AISI Designation System. The SAE system uses a basic four-digit system to designate the chemical composition of carbon and alloy steels.
The first digit (1), of this designation indicates a carbon steel; i.e., carbon steels comprise 1xxx groups in the SAE-AISI system and are subdivided into four categories due to the variance in certain fundamental properties among them. For many years, certain grades of carbon and alloy steels have been designated by a four-digit AISE/SAE numerical index system that identified the grades according to standard chemical compositions. Since the American Iron and Steel Institute (AISI) ceased writing material specifications, the relationship between AISI and grade designations has been discontinued.
From point of edition of the 1995 Iron and Steel Society (ISS) Strip Steel Manual, the four-digit designations are referred to solely as SAE Designations. The SAE system uses a basic four-digit system to designate the chemical composition of carbon and alloy steels. AISI / SAE Steel Identification Number Chart. SAE steel grades. SAE International, as a standards organization, maintains several alloy numbering systems, one of which, for steel grades, is the SAE steel grades system.
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. These efforts were similar and overlapped significantly. For several decades the systems were united into a joint system designated the AISI/SAE steel grades. AISI Steel SAE Steel grades. AISI steel specifications stockholders and suppliers, delivering to the whole of the UK.
American Iron & Steel Institute AISI specifications cover a wide range of steel types, including carbon steel, alloy steel, tool steel and stainless steel. AISI steel grades are becoming increasingly popular in the UK, primarily due to their use in the oil and gas industries. AISI grades are sometimes referred to as SAE designations. We hold a comprehensive range of stock in AISI material and AISI equivalent specifications.
Of AISI steel grades available the majority are as carbon steels and alloy steels. Www.industrialbladesandknives.com/literature/pdf/sae-aisi-steel-identification-system.pdf. Www.blueshield.ca/en/docs/pdf/techInfo/DataBook/E-Fsection218to228.pdf.