Accessory for Barrel

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).