Send inquiry
single screw barrel
We are a professional manufacturer of screw and barrel for 17years,we can supply and design all kinds of screw&barrel according to your requirments
base material
1.38 CrMoAIA(JIS SACM645)
2.42CrMo(AISI4140)
3.9Cr18MoV
4.CW6Mo5Cr4V2
5.SKD61
bimetallic alloy maerials:
1.Fe-based alloy
2,Ni-based alloy
3,Co-based alloy
4.NiCo-based alloy
5.Tungsten carbide
Heat-treatment
Nitriding treatment
Electroplate hard-chrome
High-frequency quenching
Spraying corrosion wear-resisting dual metal layers
Depth of Nitrated Layer 0.5-0.8mm
Hardness of nitration 900-1020Hv
Fragility of nitration Less than grade 1
Surface roughness Ra 0.4um
Hardness of Cr-coating Layer ≥950Hv
Thickness of Cr-coated Layer 0.03-0.08m
Appliance PVC, PP, PE, PA, PC, ABS, AS etc
guarantee period a year
if there is any need ,please contact us.