These are manufactured from suitable selected alloy steel, hot die steel [hds] and hot work tool steel; depending on customer`s requirements. They are heat treated, tempered and precision ground to very close tolerances under strict quality control. The length of the ejector pin should be selected to suit particular mold or die. Ejector pins are manufactured from h.C.H.Cr. Material, are hardened and tempered to 62±2 rc. Hot work tool steel pins are hardened to 45±5 rc., which can be further nitride to attain surface hardness of 68 rc.