... Alloys produced are:Heat resistant steel: HD,HH,Hk,HXGray and Ductile iron casting*Green sand*Dry sand*Investment sand*spin ... castingCommon Alloys produced are:Gray Iorn-Class 25, Class 30 and Class 40Ductile Iron-Gr,60-40-18,54-45-12Aluminum ... , Carbon steel and Stainless steel. For alloy requirements outside the material specialties listed above, pls contact our Sales Department. Pole line hardware