Specification: Φ15-Φ300mm
L/D: 12-45
Nitriding hardness:HV≥900
Nitriding depth: 0.5-0.8mm
plastizing effect, we have different of screw barrel to meet customer'e demand.
Gradual tpye, mutant type, wave type, barrier type, double type, double screen type, shunt type, separation type, exhaust type, pin type, mixed type, double-head type, three-head type, multi head type etc.
| Raw Material | The Finished Product Processing Requirments |
| 38CrMoAlA, SACM645, 42CrMo | Nitriding Treatment |
| 42CrMo, AISI4140, | Hard Chrome Coated Layer |
Cr12MoV, SKD11, SKD61, YXMI, EFZD, DC53, SKH55, SKH59, SKH58, SKH51, SKH-9, ASP60, ASP30, ASP25, | Alloy Steel |
| 4Cr5MoSiV1, SKD-61, SKD-11 | Spraying bimetal alloy layer and nitriding treatment |
| YPT72, DAC-MAGIC, 4Cr5MoSiV1 | whole bimetallic cladding stainless steel |
| HPM38, SI36, SUS440, 9Cr18MoV | High frequency quenching |
| GHII3 | Nature hard after high temperature |