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Zhoushan Vanscrew Machinery Co.,Ltd.
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Price: | 800.0~1500.0 USD |
Payment Terms: | T/T,L/C |
Place of Origin: | Zhejiang, China (Mainland) |
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1.Materials:38 CrMoAIA( JIS SCM645),42CrMo(JIS SCM440),SKD61
2.Depth of nitration case:0.5-0.8mm
3.Hardness of nitration: 900-1020HV
4.Fragility of nitration: Less than grade 1
5.Roughness of the surface:Ra 0.4um
6.Linearity of the screw:0.015mm
7.Chromium-plating layer thickness:0.03-0.08mm
8.Hardness of double alloys: HRC55-62
9.Depth of double alloys:>2 mm
10.The surface hard chromium plating hardness after nitrogenation:≥900HV
11.Guarantee: Common Nitrided: approx 2 years Bimetallic : much longer lifetime
The injection screw barrel for injecting mess kit
The hardness check record