chrome plated hydraulic piston rod

Size:

Ø 12-140mm

Length:

3m -8m

Material:

45# DIN CK45/JIS 45C

Tolerance

ISO f7

Chrome thickness:

20~30micron

Hardness of the chrome layer:

850HV(min)

Roughness:

Ra 0.2micron (max)

Straightness:

0.2/1000mm

Yield Strength

≥320 Mpa

Tensile Strength

≥580 Mpa

Elongation

≥ 15%

Supply condition:

1. Hard chrome plated

2. Induction hardened

3. Quenched & Tempered

4. Induction hardened with Q&T

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

40Cr

0.37-0.45

0.50-0.80

0.17-0.37

0.80-1.10

Material

T. S N/MM2

Y. S N/MM2

E%(MIN)

CHARPY

CONDITION

CK45

610

355

15

>41J

NORMALIZE

CK45

800

630

20

>41J

Q + T

ST52

500

355

22

NORMALIZE

20MnV6

750

590

12

>40J

NORMALIZE

42CrMo4

980

850

14

>47J

Q + T

40Cr

1000

800

10

Q + T