SANS 51780-1-2008 铝及铝合金.重熔合金铝锭的标号、中间合金及铸件.第1部分:数字标号系统
Aluminium and aluminium alloys - Designation of alloyed aluminium ingots for remelting, master alloys and castings Part 1: Numerical designation system
Specifies a five-figure numerical designation system for aluminium alloys and master alloys.Applies to ingots for remelting and to castings for all applications including aerospace.