Depth of Nitration Layer: 0.5-0.8mm
Hardness of Nitration: 950-1020Hv
Fragility of Nitration: Less than grade 1
Surface Roughness: Ra 0.4 um
Streightness of Screw: 0.015mm
Surface Hardness of Nitrated Cr coating Layer: >=950Hv
The Thickness of Cr Coating Layer: .03-0.08mm 
Hardness of Alloy Plating: HRC55-620
Depth of Alloys Layer: >2mm

Introduction: Used for producing PA6,PA6.6, EVOH, EAA, PC etc.

We can manufacture all types of screws and barrels according to clients' requirement.

tel: +86 15267531305