42crmo4, 40cr Induction Hardened Bar, Chrome Plated Pneumatic Cylinder Piston Rod
42crmo4, 40cr Induction Hardened Bar, Chrome Plated Pneumatic Cylinder Piston Rod
42crmo4, 40cr Induction Hardened Bar, Chrome Plated Pneumatic Cylinder Piston Rod
42crmo4, 40cr Induction Hardened Bar, Chrome Plated Pneumatic Cylinder Piston Rod

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42crmo4, 40cr Induction Hardened Bar, Chrome Plated Pneumatic Cylinder Piston Rod

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10yrs

Jiangsu, China

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Product description

42CrMo4, 40Cr Induction Hardened Bar, Chrome Plated   Pneumatic  Cylinder Piston Rod

 

Induction hardened bar

 

Detailed Product Description

1. Material:CK45,ST52,20MnV6,42CrMo4,40Cr
2.
Case depth:1.5mm~2.5mm  Induction hardness:HRC62±2
3. Diameter:6~1000mm
4. length:1000~8000mm
5. ISO9001:2008
6: 
Ground and chrome plated

 

Detailed Description

1.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

2.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

3. SUPPLY CONDITION

    Ground  and  chrome plated 

4. CHROME THICKNESS

     20 to 30 micron

5. SURFACE ROUGHNESS

     Ra≤0.2 micron and  Rt≤2 micro

6. TOLERANCES ON DIA

    ISO f7 on the diameter

7.OVALITY

Half of the tolerance ISO f7

8. STRAIGHTNESS

   ≤0.2MM/M

9. SURFACE HARDNESS

   850-1150HV (vickers 100g)

10.COHESION

   No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling 

   in water)

11 .POROSITY

     Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10

12 CORROSION RESISTANCE

     Test in natural salt spray according to ASTM B 117-72hours

     Results evaluation according to ISO 4540 RATING 7-10

13. WELDABILITY

      Good

14. PACKING

     Anti rust oil to be applied on material and each rod to be packed in paper sleeve

15. CERTIFICATE

     All certificate related with material heat treatment and plating is required

 

 

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