Warranty: | Nomally 1 Year |
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Tempering Hardness: | 240-280hv |
Depth of Nitrogen Layer: | 0.6-0.8mm |
Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Product |
38CrMoAIA screw and barrel for extruder machine |
Material |
38 CrMoAlA(JIS SACM645); 42CrMo(JIS SCM440) |
Hardness of nitrogen treatment |
HV900°~1100° |
Tempering hardeness |
HV240 ° ~280° |
Depth of nitrogen layer: |
0.6~0.8mm |
Nitrided Brittleness |
above 1 stage |
Surface Roughness |
Ra0.4 um |
Screw straightness |
0.015mm |
Hardess of surface chromium-plating after Nitriding |
HV≥950HV |
Chromium plating Depth |
0.025-0.085mm |
Alloy Depth |
2.5mm-4mm |
Alloy hardness |
HRC62°~72° |
Heating-treatment |
nitrogen ,electroplated hard -chrome finish,high frequency quenching |
Suppliers with verified business licenses