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| Single Screw and Barrel for Extrusion |
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| Model No.︰ | - |
| Brand Name︰ | - |
| Country of Origin︰ | China |
| Unit Price︰ | - |
| Minimum Order︰ | - |
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Specification: Diameter15-250 L/D: 15/45
Material: 38CrMOALA
Quenching and Tempering Hardness: HB240 ~280
Nitriding hardness: HV850 ~1000
Deepness of Nitriding: 0.45~0.7mm
Nitriding Brittleness: ≤Second Class
Surface Roughness: Ra0.4
Screw Alignment: 0.015mm
Hardness of Chrome Plating Coating after Nitrding≥900HV
Thickness of Chrome Plating Coating: 0.05~0.10mm
Hardness of Bimetallic Alloy: HRC56 ~65(nickel-base alloy)
Alloy Deepness: 0.8~2.0mm |
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