3Cr2Mo material characteristics and physical properties

Material properties
● vacuum degassing refining processing pure steel polishing or etch processing plastic mold, suitable for requirements.
● Pre-hardened state supplier, without heat treatment can be used directly in the mold, shorten the construction period.
● processing by forging rolled, organizations dense, 100% ultrasonic inspection, nonporous, the eye of a needle defects.

Main purpose
● thermoplastic plastic injection molds, extrusion dies.
● thermoplastic plastic blow mold.
● overloaded mold parts.
● Cold structural parts.
● commonly used in the manufacture TV cabinet, washing machine, refrigerator inner shell, buckets, etc..

Physical properties

Hardening process.
To improve die life of more than 80 million times, plus a hard way to achieve the implementation of the quenching and tempering of pre-hardened steel.

Quenching the first 2-4 hours, and then preheated to 500-600 ℃ in the 850-880 ℃ holding a certain time (at least 2 hours), placed in an oil

The air-cooled, cooled to 50-100 ℃ oil quenched hardness up to 50-52HRC, 200 ° C low-temperature tempering immediately to prevent cracking

Processing, after tempering, the hardness can be kept more than 48HRC
Nitriding process
Nitriding process can be obtained high hardness of the surface tissue the nitride surface hardness 650-700HV
(57-60HRC) mold life can reach more than 100 million times, the nitride layer has a compact structure, smooth characteristics, mold removal

The die and air humidity resistance and lye corrosion resistance can be improved.