Parallel Twin Screw and Barrel
Overview
Parallel Twin Screw and Barrel, listed under Screws by ZY SCREW in Zhejiang. The listing gives length/diameter ratio） L/D=18~40, material High quality 38CrMoAlA and nitrided hardness HV900-1000.
Technical specifications
| Length/Diameter Ratio） | L/D=18~40 |
|---|---|
| Material | High quality 38CrMoAlA |
| Hardness After Hardening & Tempering | HB280-32 |
| Nitrided Hardness | HV900-1000 |
| Surface Roughness | Ra 0.4 |
| Alloy Hardness | HRC 50-65 |
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