1.38 CrMoALA Material
2.Nitriding Depth:0.6~0.8mm
3.High Quliaty Base Material
4.conical twin-screws and barrel

Product name: Screws and barrels for Plastic Injection Molding Machinery

Screw Diameter: Φ15mm-Φ350mm

Material: 38CrMoAlA;9Crl8MoV; high quality alloy steel

Technology: nitriding treatment,Sprey conating Bimetallic , heat-treatment

Appliance: PP, PE, PA, PVC, PC, ABS, AS etc

Technical Index (30g-25000g):

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