Hydraulic Cylinder Crane Piston Rod

Item

Specification

Product Name

Hard Chrome Plated Hydraulic Cylinder Piston Rod

Diameter Range

6 – 300 mm

Length Range

100 – 1200 mm

Steel Grades Available

DIN CK45 / JIS 45C / ASTM 1045 / SAE 1045 / AISI 1045

Tolerance

ISO f7

Chrome Thickness

≥ 20 μm

Chrome Layer Hardness

≥ 850 HV

Surface Roughness

Ra ≤ 0.2 μm

Straightness

0.2 / 1000 mm

Mechanical Properties (CK45)

Yield Strength ≥ 20 MPa Tensile Strength ≥ 80 MPa Elongation ≥ 5%

Supply Condition

1. Hard Chrome Plated 2. Induction Hardened 3. Quenched & Tempered (Q&T) 4. Induction Hardened with Q&T

Material

C (%)

Mn (%)

Si (%)

S (%)

P (%)

V (%)

Cr (%)

CK45

0.42–0.50

0.50–0.80

0.17–0.37

≤0.035

≤0.035

-

≤0.25

ST52

≤0.22

≤1.60

≤0.55

≤0.04

≤0.04

0.02–0.15

-

20MnV6

0.17–0.24

1.30–1.70

0.10–0.50

≤0.035

≤0.035

0.10–0.20

≤0.30

42CrMo4

0.38–0.45

0.50–0.80

0.17–0.37

≤0.035

≤0.035

0.07–0.12

0.90–1.20

40Cr

0.37–0.45

0.50–0.80

0.17–0.37

≤0.035

≤0.035

-

0.80–1.10

Customization Item

Description

Material Grade

Available in various strength steels including CK45, 42CrMo4, 40Cr, and 20MnV6.

Dimensions

Diameter, length, and fit dimensions can be customized according to drawings.

Surface Hardening

Chrome plating thickness, induction hardening depth, or tempering condition can be customized.

End Structure

Internal/external threads, flange connections, or pin hole structures can be customized.