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Specifications:Product name: Twin Conical screws and barrels
Size: Screw Diameter: F35mm-F200mm
Length: =10000mm
Barrel ID: F35mm-F200mm
Material: 38CrMoAlA; SKD61; SKD11; 40Cr; 42CrMo; high quality alloy steel
Technology: nitriding treatment, alloy coating spraying, heat-treatment
Appliance: PP, PE, PA, PC, ABS, AS etc
Technical Index:
Depth of Nitrated Layer: 0.5-0.8mm
Hardness of nitration: 900-1020Hv
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
