... C45,40Mn2,ductile iron Mechanical class 40kN - 210kN Hot galvanized Ball and Socket1.Materials in C45,40Mn2, ductile iron2.Mechanical class 40kN ... - 210kN3.Hot galvanized coating protection against corrosion4.Materials testing acc.to ... .to IEC 60383, ISO 14713, 1461, ASTM A123, A153 Ball and Socket