injection molding screw barrel, injection screw barrel, screw barrel, plastic machinery screw barrel

Screws and barrels for Plastic Injection Molding Machinery
Screw Diameter: Φ10mm-Φ255mm
Material: 38CrMoAlA SKD61 SKD11 40Cr 42CrMo high quality alloy steel
Technology: nitriding treatment, alloy coating spraying, heat-treatment
Appliance: PVC, PP, PE, PA, PC, ABS, AS etc
Technical Index (30g-25000g):
Depth of Nitrated Layer: 0.5-0.8mm
Hardness of nitration: 950-1020Hv
Fragility of nitration: Less than grade 1
Surface Hardness of Nitrated Cr coating layer: ≥950Hv
Hardness of Bimetallic Layer: HRC55°-72°
Thickness of Cr-coating Layer: 0.03-0.08mm
Depth of Bimetallic Layer: >2mm