DAC55 steel is improved on the basis of DAC (SKD61).
The most suitable hardness for use after tempering is HRC40-44
The machinability is very good, easy to process, and shortens the mold making time.
No need for hardening after processing, especially quenching deformation, cracking, expansion and contraction, etc.
Use YSS sponge fabric with very low harmful impurity content as raw material to make high-quality special hot-compression molded alloy steel
High resistance to heat cracking, excellent strength at high temperatures, and long service life of steel molds
① Suitable for large-scale die-casting molds with complex structures and long life requirements, high-performance die-casting molds
② Hot extrusion mold
③ Large-volume precision plastic injection mold Quenching 1010-1030℃ Rapid cooling Tempering 550-640℃ Hardness 45-53
Suitable for large die-casting molds, high-performance die-casting molds, extrusion dies, etc.
Good heat crack resistance, high temperature strength, good hardenability, and high dimensional precision.
① 46~50HRC under normal conditions
② Small extrusion molds mainly resistant to heat cracking use hardness 50~53HRC
③ When toughness is the main factor, 43~46HRC is more suitable. C:0.33-0.42 Si:0.8-1.2 Mn:0.55-0.75 Cr:4.8-5.5 Mo:1.2-1.6 V:0.3-0.8 P:<0.03 S: 0.1-0.150
Link to this article：What is DAC55 steel? What are the applications of DAC55 steel?
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