Material:38 CrMoAlA(JIS SACM645); 42 CrMo(AISI 4140)
Nitrided Hardness: HV950°~1000°
Hardness after hardening and tempering: HB260 °
Nitrided Depth: 0.5~0.7mm
Nitrided Brittleness above: 2 stage
Surface Roughness: Ra0.4
Screw straightness: 0.015mm
Hardess of surface chromium-plating after Nitriding: HV≥950HV
Chromium plating Depth: 0.05~0.10mm
ALLoy Depth: 0.8~2.0mm
Alloy hardness: HRC56°~65°
Alloy(bimetallic) iron,nickel,tungsten,molybdenum
Types of screw barrel Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.
Scope of application
WPC sheet,pallets,pinch,pipe,profiles,soft pvc,pvc foam sheet,film,tape,recycled,tape tube,water pipe,drainage pipe,etc.