Injection molding machine screw cylinder barrel Material

Manufacturing barrel, the current domestic commonly used materials have 45,40Cr and 38CrMoAIA. Imported extruder barrel manufacturing materials, commonly used steel 34CrAINi and CrMoV9. This material has a yield strength of about 900MPa. After nitriding treatment, hardness 1000HV above, both wear and good corrosion resistance. Tungsten alloy cylinder, tungsten carbide + chromium alloy barrel, tungsten carbide + chromium alloy + nickel alloy barrel Material selection of high quality alloy steel for the substrate, the hole above casting alloy, barrel increase wear resistance, corrosion resistance.