Product Specification and technical data

?    Diameter: Φ10mm～Φ500mm

?    Ratio of length to diameter: L/D = 8-60

?    Quenching and tempering hardness: HB240-280°

?    Nitration hardness: HV900-1,050°

?    Depth of Nitrated Layer: 0.5-0.8mm

?    Thickness of Cr-coated Layer: 0.03-0.08mm

?    Nitration fragility: ≤grade 1

?    Surface roughness: Ra 0.4um 

?    Straightness: 0.015mm

?    Cr-coating layer hardness: HV≥950HV

?    Depth of Bimetallic Layer: 3-5mm

?    Bimetallic hardness: HRC52-64°

Material :quality alloy steels

?    ① 41CrAlMo7

?    ② EN41-B

?    ③ AISI4140

?    ④ 1.85

?    ⑤ SKD61, SKD11

?    ⑥ 38CrMoAlA

?    ⑦ W6Mo5Cr4V2

Heat-treatment:

?    Nitriding treatment

?    Electroplated hard-chrome finish  

?    Vacuum, High-frequency quenching

?    Baking, Spray welding Bimetallic-alloy