With temper resistant up to nearly 600oC, surface hardness 950 Hv up, and tensile core strength about 1400 N/mm2, made of heat treated high-performance hot working tool steel, it is high bending strength, high elasticity and toughness.
Head hot forged (formed), and excellent sliding quality because of vacuum ION nitride.
There are two kinds of black pins.
-- Coating with MoS2, it increases wear protection of sliding parts and
long-term lubrication.
-- Black oxidized.
Since we understand that Black Pin is leading mold component in the soonest future for world mold field, so we researched, developed, and tested with our technology, skill and effort, finally we make the perfect black ejector pin, especially with our professional equipments which means we are the one you can trust on and will be interested in.