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Model Number: shenglong -extruder screw barrel
Brand Name: shenglong
Place of Origin: China (Mainland)
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
Thickness of Cr-coated Layer: 0.03-0.08m
Hardness of Bimetallic Layer: HRC55-72
Depth of Bimetallic Layer: >2mm .

Specifications

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