Valid untillong term effective | Latest update2013-01-15 16:55 |
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Screw for Extruder
Depth of Nitration Layer: 0.5-0.8mmHardness of Nitration: 950-1020HvFragility of Nitration: Less than grade 1Surface Roughness: Ra 0.4 umStreightness of Screw: 0.015mmSurface Hardness of Nitrated Cr coating Layer: >=950HvThe Thickness of Cr Coating Layer: HRC55-62Depth of Alloys Layer: >2mm