Specifications

We have outstanding theoretical background and practical experience, providing optimum designs of screws and barrrels for our cu

Technical data:

Depth of Nitrated Layer: 0.5-0.8mm          Hardness of nitration: 900-1020Hv
Fragility of nitration: Less than grade 1        Surface roughness: Ra 0.4um 
Hardness of Cr-coating Layer: ≥950Hv       Thickness of Cr-coated Layer: 0.03-0.08mm Hardness of Bimetallic Layer: HRC55-72            Depth of Bimetallic Layer: >2mm