Product Description

Screw and barrels for single screw -extruders Specifications:Ø*5mm-Ø**0mm Length/Diameter Ratio:*5～*5 Screw can be selected from ordinary, gradual, mutational, pinned, shielding, separating and exhausting types. Materials: Alloy-steel of high quality 1) *8CrMoAlA(JIS SACM**5) 2) 9Cr*8MoV Technical data: Nitrided Hardness: HV *******0 Nitrided Case Depth: 0.*0mm*0.*0mm Nitrided Brittleness: Less Than Grade 2 Surface Roughness: Ra 0.4 Screw Straightness: 0.**5mm Surface Chromium-Plating's Hardness After Nitriding:≥**0HB Chromium-Plating Depth: 0.*5~0.*0mm Alloy hardness: HRC****5 Alloy depth: 0.8mm*2.0mm Advanced nitriding process Corrosion&Abrasion resistance bimetal spraying proces