ASTM A532. AS2027. BS 4844 2B. Material:High Chrome,Ceramic Composite,Alloy Steel,High Manganese Steel,Ni-hard. We Supported a wide range of alloys with different Heat treatment capabilities. Austentic Manganese steels 14%MN, MN13CR2, MN18CR2, MN22CR2 MN13CRMO, MN18CRMO, MN22CRMO.