This allowed a wide variety of competing standards, compositions and designations to flourish.
Additionally, the increasing number of new alloys meant that the problem would only get worse.
The resulting document SAE HS-1086 provides a cross-reference between various designation systems and the chemical composition.
), heat treatment, form (rolled, cast, forged, flanges, tubes, bars, etc.
and testing methods are all specified in the material or standard specification which is created by various trade and professional organizations.
Some common materials and translations to other standards:[5] A UNS-derived system known as ISC (in Chinese 统一数字代号, literally "unified numeric designator") is used in China in parallel to the composition-based nomenclature.