HS SPM is modified 2738 plastic mold steel. Compared with HS SPM, HS SPM ESR has higher purity and better uniformity through electroslag remelting process.
The composition optimization and the special production process ensure that the two kinds of steel have good toughness, polishability, hardness uniformity, machining performance, thermal conductivity and weldability. They are suitable for nitriding, chrome plating and engraving.
HS SPM ESR
Plastic injection molds with a thickness of more than 400mm.
Molds of automobile bumper and dashboard, and large injection molds.
HS SPM ESR
Car lights, bumpers, dashboards, Interior decoration mould, etc.
Plastic mold steel for household appliances.
Excellent polishing performance
Good machining performance
Suitable for surface processing (such as chrome plating)
Compared with 2738, the welding performance is improved
The thermal conductivity is greatly improved
Good hardenability, nitriding can be applied
Quenching + twice tempering, hardness 38-42HRC
Please fill the form to let us know your need. Our sales will get in touch with you ASAP.