Bimetallic Screw


Technology Index:
Material 38CrMoALA,
Screw Straightness 0.015mm
Cr-Plating Layer Hardness 850 HV
Diameter D12-D300 mm Cr-Plating Layer Depth 0.03-0.10mm
L/D Ratio L/ D=10-50 Cr-Plated Surface Hardness after Nitriding ≥900HB
Nitriding Layer Depth 0.5-0.8mm Hardness after hot-treatment HB240-280
Nitriding Layer Hardness 950-1020HV Nitriding Treatment Time ≥96 hours
Nitriding Fragility Less Than Grade Two Bimetallic Layer Hardness 58-65 HRC
Surface Roughness Ra0.4μm Bimetallic Layer Depth 0.8-2.0mm
  Our technical and engineering department offers decades of experience in the field of plastic machinery and screw design. We have developed our own line of screw designs which can be tailored to suit your demand. We complete orders quickly and cost effectively, and you can count on us to deliver high quality products quickly and on time.

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