popular extrusion pvc screw fittings

popular extrusion pvc screw fittings, 1.Nitriding Depth:0.5~0.7mm, 2.High Quliaty Base Material - details see: https://www.machineto.com/popular-extrusion-pvc-screw-fittings-10334839

Place of Origin:Zhejiang China (Mainland)

Brand Name:LiJing

Model Number:LJ-

Steel Material:Alloy-steel of High-Quality

popular extrusion pvc screw fittings

1. We can manufacture all types of screws and barrels according to clients' requirement.

size:

screw diameter:Φ20-Φ500mm
Maximum screw length:10000mm
Barrel inner bore diameter:Φ500mm

2.Technology:nitriding treatment ,alloy coating spraying, heat-treatment applied

3. Technical parameter:

Material	38CrMoAIA,42CrMo,alloy powder
Nitridedepth	0.7mm
Surface hardness	HV950 - HV1,020
Fragility of nitrition	less than grade 1
Screw straight tolerance	0.015 mm/m
Surface roughness	Ra 0.4μm
Linearity of the screw	0.015mm
Depth of double alloys	> 2ram
Bimetallic layer depth	3mm