Thesingle screw& barrel for extruder in full specifications

Abrasion resistant and corrosion resistant.

Material: High quality alloy steel

                1) 38CrMoAlA

                2) 9Cr18MoV

Technics: 1) Heat-treatment

                2) Nitriding treatment

                3) Spray bimetallic-alloy coating

Technical parameter

Nitriding depth: 0.50-0.80mm

Nitriding hardness: 900-1000HV

Nitriding brittleness: Less than grade 1

Surface roughness: Ra0.4

Linearity of the screw: 0.015mm

Hardness of the chrome plating after nitriding: More than 950HV

Chrome plating thickness: 0.025-0.085mm