We can Make as Customer's Requirement. Technical Parameter: Inner Diameter: Ø 20-Ø 300 Effective length: 12000mm Hardness of quenching and tempering: HB240 ~280 Hardness of nitration: HV850 ~1000 Depth of Nitrated Layer: 0.45~0.7mm Fragility of nitration: <= Grade 2 Surface roughness: Ra0.4 Straightness: 0.015mm Hardness of Cr-coating Layer: HV>=900HV Nitrided layer thickness: 0.05~0.10mm Thickness of Cr-coated Layer: 0.8~2.0mm Hardness of bimetallic alloy: HRC56 ~65 (Ni-based alloy).

Accessory for Screw & Barrel - 006