Hard Chrome Plated Hardened Round Bar

Hard Chrome Plated Hardened Round Bar

Hard chrome plated hardened round bar Introduction Hard chrome plated hardened round bar adopts rolling process, which improves the surface anti-corrosion ability, and can delay the production or expansion of fatigue crack, thus improving the fatigue strength of cylinder rod. Roll forming, by...
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Product Details

Hard chrome plated hardened round bar Introduction

Hard chrome plated hardened round bar adopts rolling process, which improves the surface anti-corrosion ability, and can delay the production or expansion of fatigue crack, thus improving the fatigue strength of cylinder rod. Roll forming, by forming a layer of cold work roll surface hardening layer, reducing the grinding pair of elastic and plastic deformation of the contact surface, thus improve the abrasion resistance on the surface of the cylinder rod, at the same time avoid the burn caused by grinding.

Descriptions of hard chrome plated bars

Size: 

Ø 6-300mm

Length: 

1-9m

Material:

CK45/ ST52/ 20MnV6/ 42CrMo4

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


Chemical Composition

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


Mechancial Properties

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



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 After-sales service:?
1.?Where to buy our products for one year warranty and life long maintenance.?
2.?24-hour telephone service.?
3.?A large stock of components and parts, easily-worn parts.?

 

 

 


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