Hollow Hard Chrome Coating Piston Rod,Slender Shaft

Product Attribute:

Applicationt: 

used in all kind cars, vehicles, hydraulic cylinders, gas spring, injection moulding machine, ....

Production Description:

Hollow Hard Chromed Plating Piston Rod for Shock Absorber
1, Material: According to user requirements (GB45/ S45C/ C45;GB35/S35C/C35;40Cr) 
2, Specifications: 8 ~ 40mm
3, Length: 100-600mm
4, Straightness: 0.01
5, Roundness: 0.005
6, Cylindricity: 0.01
7, Concentricity: 0.04
8, Surface roughness: 0.05~0.08µm
9, Induction hardness: HRC40~HRC58
10, Case depth: 0.4~1.5
11, Thickness of chromed: According to user requirements (15~25µm)
12, Hardness: 900Hv-1200Hv
13, Cracks: 30 ~ 60/mm
14, Salt spray: 48hrs no. 7~120hrs no. 8
15, Dehydrogenation