SM45-SM55, SM3Cr2Mo steel plate is a plastic die steel, suitable for the manufacture of various plastic molds. Here are the details of these materials:
SM45-SM55: This series of plastic die steel is a kind of pre-hardened plastic die steel, after electroslag remelting treatment, with high purity, high precision, high uniformity, suitable for manufacturing large, complex, precise plastic die. The steel has good polishing and welding properties, can be polished and etched treatment, suitable for a variety of mirror and high gloss plastic products. At the same time, the wear resistance and corrosion resistance of the steel are also good, which can extend the service life of the mold.
SM3Cr2Mo: This is a pre-hardened plastic die steel, after a special heat treatment process, with excellent machining properties, polishing properties and corrosion resistance. The hardness of the steel is between HRC30-40, can be cut, drilling, milling and other processing operations, and has good polishing properties, can make high gloss plastic products. In addition, the corrosion resistance of the steel is also good, which can extend the service life of the mold.