Details Organization Type Standards Organization Acronym AISI Active Status Active Full Address Description The American Iron and Steel Institute (AISI) is not a material specification writing body, although many times steels are referred to as AISI Standard steels. The steels are actually part of a designation system that refers only to the chemical composition ranges and limits of the different steels. AISI designations are reported in the same manner as the SAE steel designations, except AISI is placed in front of the code. The most widely used system for designating carbon and alloy steels in the United States is that of the American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE). Although they are two separate systems, they are nearly identical and are carefully coordinated by the two groups. In this joint system, a particular designation implies the same limits and ranges of chemical composition for both an AISI steel and the corresponding SAE steel. The differences in listings occur as a result of differences in determining eligibility for listing. AISI uses production tonnage as the basis for including a steel. SAE includes a steel if it is used in significant quantity by at least two users or if it has unique engineering characteristics. The fact that a particular steel is listed by AISI or SAE implies only that it has been produced in appreciable quantity. It does not imply that other grades are unavailable, nor does it imply that any particular steel producer makes all of the listed grades. AISI designations and standard practices are not specifications. The SAE designations are published in the annual SAE handbook under various SAE standards. These standards are comprised entirely of listings of SAE designations and the limits and ranges of chemical composition defined by these designations. Either designation contains only a portion of the information necessary to describe properly a steel product for procurement purposes. The Steel Products Manual, consisting of individual sections covering the major steel mill products, was published for many years by the American Iron and Steel Institute (AISI), providing an authoritative source of reference material for the producers and users of steel products. AISI discontinued publication of the Manual in 1981 and in 1986, and agreement was concluded wherein the Iron & Steel Society would undertake the publication, updating and sale of the Manual. The Iron & Steel Society is well qualified to provide this publication, having served the steel industry for many years through the promotion of knowledge and the publication of literature pertaining to iron and steel, including steel production, manufacturing and research. See listing for Iron & Steel Society (ISS). Example: Refer to the example under SAE steel designations. Organization Name American Iron and Steel Institute (AISI) Address 1101 17th Street NW, Suite 1300 City Washington State DC RegionCode 20036-4700 Country USA Area USA Phone 202 452 7100 Fax 202 463 6573 Web Site www.steel.org Links Materials 1389 Links Show All
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AISI

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The American Iron and Steel Institute (AISI) is not a material specification writing body, although many times steels are referred to as AISI Standard steels. The steels are actually part of a designation system that refers only to the chemical composition ranges and limits of the different steels. AISI designations are reported in the same manner as the SAE steel designations, except AISI is placed in front of the code. The most widely used system for designating carbon and alloy steels in the United States is that of the American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE). Although they are two separate systems, they are nearly identical and are carefully coordinated by the two groups. In this joint system, a particular designation implies the same limits and ranges of chemical composition for both an AISI steel and the corresponding SAE steel. The differences in listings occur as a result of differences in determining eligibility for listing. AISI uses production tonnage as the basis for including a steel. SAE includes a steel if it is used in significant quantity by at least two users or if it has unique engineering characteristics. The fact that a particular steel is listed by AISI or SAE implies only that it has been produced in appreciable quantity. It does not imply that other grades are unavailable, nor does it imply that any particular steel producer makes all of the listed grades. AISI designations and standard practices are not specifications. The SAE designations are published in the annual SAE handbook under various SAE standards. These standards are comprised entirely of listings of SAE designations and the limits and ranges of chemical composition defined by these designations. Either designation contains only a portion of the information necessary to describe properly a steel product for procurement purposes. The Steel Products Manual, consisting of individual sections covering the major steel mill products, was published for many years by the American Iron and Steel Institute (AISI), providing an authoritative source of reference material for the producers and users of steel products. AISI discontinued publication of the Manual in 1981 and in 1986, and agreement was concluded wherein the Iron & Steel Society would undertake the publication, updating and sale of the Manual. The Iron & Steel Society is well qualified to provide this publication, having served the steel industry for many years through the promotion of knowledge and the publication of literature pertaining to iron and steel, including steel production, manufacturing and research. See listing for Iron & Steel Society (ISS). Example: Refer to the example under SAE steel designations.