Bimetallic Screw and Barrel

Payment Terms: T/T,L/C,D/A,D/P,WU
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Basic Info.
  • screw: barrel 
  • Place of Origin: Zhejiang  
Diameter:D12-D300 mm
L/D Ratio:L/ D=10-50
Surface Roughness:Ra0.4μm
Screw Straightness:0.015mm
Nitriding Layer Depth:0.4-0.8mm
Nitriding Fragility:Less Than Grade Two
Nitriding Layer Hardness:950-1020HV
Cr-Plating Layer Depth:0.03-0.10mm
Cr-Plating Layer Hardness:850 HV
Cr-Plated Surface Hardness after Nitriding:≥900HB
Hardness after hot-treatment:HB240-280
Nitriding Treatment Time:≥96 hours
Bimetallic Layer Hardness:58-65 HRC
Bimetallic Layer Depth:0.8-2.0mm

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Ms. Eva Yu
Tel: 86-580-8803979
Mobile: 13567431804
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Zhoushan Jianghai Screws Manufacture Co., Ltd
No. 599 Xingzhou Road, Dinghai District, Zhoushan, Zhejiang, China (Mainland)
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