Conical twin screw
Material Science
High quality alloy steel
38CrMoAlA(JIS SACM645)
Technical index
Depth of nitriding layer: 0.5 ~ 0.8mm
Nitriding hardness: 900 ~ 1000hv
Nitriding brittleness: < 1 grade
Surface roughness: Ra0.4
Screw straightness: 0.015mm