rubber continuous vulcanizing extruder screw and barrel 1.Materials:38CrMoAIA(JIS SACM645) 2.Plastic Processed:PE,PP,PVC

3.Depth of nitration case:0.5-0.8mm

4.Hardness of nitration: 950-1020HV

5.Fragility of nitration: Less than grade 1

6.Roughness of the surface:Ra 0.4um

7.Linearity of the screw:0.015mm

8.Chromium-plating layer thickness:0.03-0.08mm

9.The surface hard chromium plating hardness after nitrogenation:>=950HV

10.Guarantee: Common Nitrided: approx 2 years     Bimetallic : much longer lifetime

Rubber Machinery Screw Barrel
Diameter	Dia 45-300mm	Min. Order	1 set
Materials	38CrMoAlA (JIS SACM645) 9Cr18MoV	Discount	Available
Application	PVC PE PP…	Payment Term	T/T  ,  L/C
Heat-Treatment	Nitrided or Bimetallic Hardness:>950HV	Delivery Term	30 working days
Packing	Wrapped up by film in wooden case	Port Departure	Shanghai/Ningbo
Guarantee	Common Nitrided:2-3 years Bimetallic: much longer lifetime.