This comprehensive guide presents the AFNOR (Association Française de Normalisation) standard specifications for steel materials across three major categories: structural and constructional steels, tool steels, and specialty steels including stainless, heat-resisting, and valve steels. The standards cover specifications for various steel products, from carbon and alloy steels to specialized applications in boilers, pressure vessels, and railway components.
This article provides a comprehensive overview of the AISI-SAE designation system for steel classification, focusing on structural, constructional, stainless, and heat-resistant steels. It examines how the four-digit SAE numerical system categorizes carbon and alloy steels based on chemical composition, with carbon steels comprising the 1xxx groups.
Aluminum alloy designation systems provide standardized methods for identifying and classifying aluminum materials based on composition, product form, and temper conditions. The American National Standards Institute (ANSI) H35.1 standard governs aluminum alloy designation systems, incorporating product forms including wrought, casting, and foundry ingot materials.
The DIN 17007 standard defines the numerical system for designating non-ferrous metals (Werkstoffnummer) used in Germany. This system categorizes metals into major groups—heavy metals (excluding iron) and light metals—through the first digit of the designation. The next four digits specify the particular metal or alloy type within each group.
ASTM Standard List - Structural and Constructional Steels Standards: Part Five
ASTM specifications represent a consensus among producers, specifiers, fabricators, and users of steel mill products. ASTM’s designation system for metals consists of a letter (A for ferrous materials) followed by an arbitrary sequentially assigned number. These designations often apply to specific products, for example A548 is applicable to cold-heading quality carbon steel wire for tapping or sheet metal screws.