Single Screw&Barrel

Products specification:

Screw diameter: 0~300mm, Screw length: 300~8000mm, Outside diameter of barrel: 40~400mm, L/D: 10~46.

Material&Treatment:

38 CrMoAIA(JIS SACM645);

Heat treatment; Nitride treatment; Hard chrome plating; High frequency quenching; Spraying bimetallic alloy for corrosion; Resistance & abrasive resistance; Vacuum quenching.

Technical Index:

surface hardness HV≥860,Nitriding hardness HV850-1000,nitriding depth 0.45~0.7mm,chromeplate hardness ≥900HV, chromeplate thickness 0.05~0.1mm, bimetal hardness 60~70 HRC, bimetal depth 0.8~2.0mm.