2019 Hot Sale Chrome Piston Rod Steel Pipe Weight

Diameters

6-300mm

Length

3000mm-8000mm

Steel grade

CK45/JIS 45C

Tolerance

ISO f7

Chrome thickness

20μm(min)

Hardness of the chrome layer

850HV(min)

Roughness

Ra 0.2μm(max)

Straightness

0.2/1000mm

Mechanical properties(ck45)

Yield strength≥20Mpa 

Tensile strengh≥80

Mpa Elongation≥5%

Material

C%

Mn%

Si%

S%

P%

V%

Cr%

Ck45

0.42-0.50

0.50-0.80

0.04

0.035

0.035

ST52

0.22

1.6

0.55

0.035

0.04

20MnV6

0.16-0.22

1.30-1.70

0.10-0.50

0.035

0.035

0.10-0.20

42CrMo4

0.38-0.45

0.60-0.90

0.15-0.40

0.03

0.03

0.90-1.20