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42CrMo Hard Chrome Plated Bar F7 20-30 Micron OD 25-250MM Ra0.2

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Address: Yangshan Industrial Park Huishan District Wuxi Jiangsu China

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42CrMo Hard Chrome Plated Bar F7 20-30 Micron OD 25-250MM Ra0.2

Country/Region china
City & Province wuxi jiangsu
Categories Aquaculture Equipment

Product Details

42CrMo Hard Chrome Plated Bar F7 20-30 Micron OD 25-250MM

 

 

Detailed Product Description

 

1. Material: CK45, ST52, 20MnV6, 42CrMo4, 40Cr

2. ISO9001:2008

3. Tensile strength: Not less than 610 N/MM2

4. Yield strength: Not less than 355 N/MM2

5. Complete manufactured equipment

6. Application: Mining machinery industry, textile / printing industry and so on

 

 

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

 

Meeting clients’ requirements is our forever goal.

Benefit mutually and go forward hand in hand.

 

We imported one continous chrome plating line from Italy at the beginning of 2016. With this new chrome plating line, we will improve efficiency and product quality a lot.The new chrome plating line is the first one in China and will be the only one in the next five years!

 

 

From 2017, we established an intelligent workshop with all automatic machined. There are five lines only for producing exported products. The new workshop is executing 6S strictly. The production capacity will be 1500 tons per month.

 

 


 

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