Heat treatment and oil quenching, temper-ted make the ejector pin have heavy hardness and high ductility, then prolong the working life.
Use for injection mold, plastic mould and industry producing.
Categories: plastic mould parts
Tags: en31pin, hss pin, mould elements, piercing pin, skd61 pin
Material: Skd61, HSS, 1.3343, suj2, C45,
Hardness: Head Hrc45-50, body Hrc 58-60
