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Member Since 13 Years
Nature of Business Supplier Year of Establishment 2003Ask for more detail from the seller
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We offer Bimetallic screw and barrel for extruder.
screw and barrel for plastic injection & extrusion machinery
1. Material: 38crmoala,40crmo,42crmo,skd61
2.size: screw diameter:20-500mm
3.maximum screw length:10000mm
4.barrel inner bore diameter:500mm
5.high quality alloy steel
technology: nitriding treatment,
alloy coating spraying,
heating treatment,
screw fully hardening,
depth of nitrition layer: 0.5-0.8mm
nitriding treatment, surface hardness: hv�900-1000
fragility of nitrition: less than grade 1
surface roughness: ra 0.4um
streightness of screw: 0.015mm
surface of hardness of nitrated cr coating layer: �950hv
hardness of cr coating layer: hrc55-62
thickness of alloy plating: 0.03-0.08mm
depth of alloy layer:2mm.
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