AISI Standards

All AISI Standards are available to download free of charge in PDF format.

AISI Design Standards (S100-, S200-, S300-, S400-Series)

AISI Design Standards Adopted In 2021 Edition I-Codes

AISI Design Standards Adopted In 2018 Edition I-Codes

AISI Test Standards (S900-Series)

ERRATA

Pre-2015 Edition AISI Standards

AISI does not continue to print and sell pre-2015 editions of AISI Standards. These documents are available free of charge in PDF format from the Wei-Wen Yu Cold-Formed Steel Library at the Missouri University for Science and Technology.

Obsolete AISI Material Standards

CARBON AND ALLOY STEELS: AISI used to designate certain standard grades of carbon and alloy steel bars, blooms, billets, slabs and rods with specified ladle chemistry ranges and limits (e.g., AISI 1040 steel). However, AISI is no longer directly involved with the development and/or maintenance of standard steels. The Association for Iron and Steel Technology has assumed these activities and AIST’s publication, “Pocket Book of Standard Wrought Steels,” provides current information.

STAINLESS STEELS: AISI is no longer involved with the development and/or maintenance of material standards of stainless steels. Please contact the Specialty Steel Industry of North America (SSINA) for more information on these products.