Zhejiang Dong Bin Rubber Machine Screw Co., Ltd.

China Manufacturer with main products: Bearing Pedestal, 150 Barrel, 150 Feed Roll, Plastic Injection Machine

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Plastic Twin-Screw

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Place of Origin: Zhejiang in China


Material: Quality 38CrMoAIA
Hardness After Hardening& Tempering: HB240-280
Nitrided Hardness: HV850-1000
Nitrided Case Depth: 0.45-0.7mm
Nitrided Brittleness: less Than Grade1
Surface Roughness: Ra0.4
Screw Straightness: 0.015mm
Surface Chromium-Plating'sHardness After Nitriding : ≥900HB
Chromium-Plating Depth: 0.05-0.10mm
Alloy Hardness: HRC56-65
Alloy Depth: 0.8-2.0mm

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