American Society for Testing and Materials (ASTM). Current edition approved May 1, 2009. Published August 2009. 4 р. This specification covers soft, medium, and hard temper zinc-5 % aluminum-mischmetal (Zn-5 Al-MM) alloy-coated carbon steel wire in coils for general use. The product is intended for applications requiring corrosion resistance, drawability, and formability.