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Specifications

Specifications:
Screw: φ15 mm ~φ300 mm
Length-diameter ratio: L/D: 10-46
Technical Index:
Materials: High Quality 38 CrMOALA
Nitriding Hardness: HV900 ~ 1000
Nitriding HardnessNitriding Depth: 0.45 ~ 0.8mm
Nitriding DepthNitriding
Brittleness : Less Than Grade 2
Surface Roughness: Ra0.4
Screw Straightness: 0.015 mm
Alloy Hardness: HRC60-70