TitleProduct

Honed Tubing for Hydraulic Cylinder

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Beijing

  • Validity to:

    Long-term effective

  • Last update:

    2018-08-26 20:00

  • Browse the number:

    235

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Company Profile

Qingzhou Longyue Hydraulic Machinery Co.,Ltd

By certification [File Integrity]

Contact:sdlongyue(Mr.)  

Email:

Telephone:

Phone:

Area:Beijing

Address:Beijing

Website:http://www.lyhonedtube.com/ http://www.yabofashion.com/com/sdlongyue/

PRODUCT DETAILS

Professional manufacturer of Hard chrome rod for hydraulic, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China.


Honed Tubing For Hydraulic Cylinder


Longyue’s hydraulic cylinder tubing is produced using our “Suitable To Hone” Drawn Over Mandrel (DOM) and Cold Drawn Seamless (CDS). 

The honing process involves using abrasive polishing stones and abrasive paper to remove small amounts of material, to produce extremely precise ID dimensions and improved finishes.


Specifications:

1. Steel grade: ST52, ST52.3, 20#, 45#, 4140, 16Mn, 42CrMo, Q345B, Q345D, Stainless Steel 304/316, Duplex 2205, Alloy Steel etc.

2. ID: 20mm-1500mm

3. Length: max 13m

4. Straightness: 0.5/1000

5. Roughness (Ra): 0.2-0.4u 

6. Tolerance EXT: DIN2391

7. Tolerance INT: ISO H8

8. Type: cold drawing, cold rolling, honed

9. Conservation: anti rust oiled inside and outside surface, plastic caps in both ends.

10. Package: bundle with steel strip and knitting strip, or wooden case.


Tolerence:

Inside Dia (mm)

ID Tolerance (mm)

WT Tolerance(mm)

H7

H8

H9

H10

≤30

+0.021/0

+0.033/0

+0.052/0

+0.084/0

±7.5%
>210mm ±10%

30 - ≤50

+0.025/0

+0.039/0

+0.062/0

+0.100/0

50 - ≤80

+0.030/0

+0.046/0

+0.074/0

+0.120/0

80 - ≤120

+0.035/0

+0.054/0

+0.087/0

+0.140/0

120 - ≤180

+0.040/0

+0.063/0

+0.100/0

+0.160/0

180 - ≤250

+0.046/0

+0.072/0

+0.115/0

+0.185/0

250 - ≤315

+0.052/0

+0.081/0

+0.130/0

+0.210/0

315 - ≤700

+0.057/0

+0.089/0

+0.140/0

+0.230/0



Chemical Composition

Steel Grade

Chemical composition %

C

Si

Mn

P

S

Al

20#

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

/

45#

0.42-0.50

0.17-0.37

0.50-0.80

0.035

0.035

/

Q345B

≤0.2

≤0.5

1.00-1.60

0.03

0.03

/

Q345D

≤0.2

≤0.5

1.00-1.60

0.03

0.03

0.015

25Mn

0.22-0.29

0.17-0.37

0.70-1.00

0.035

0.035

/

27SiMn

0.24-0.32

1.10-1.40

1.10-1.40

0.035

0.035

/

ST52

≤0.22

≤0.55

≤1.6

0.025

0.025

/

SAE1026

0.22-0.28

0.15-0.35

0.60-0.90

0.04

0.05

/


Mechanical Properties

Delivery Condition

cold finished (hard) (BK)

cold drawn and stress-relieved (BK+S)

Steel Grade

Tensile Strength (Mpa)

Elongation (%)

Tensile Strength (Mpa)

Yield Strength(Mpa)

Elongation (%)

20#

≥550

≥8

≥520

≥375

≥15

45#

≥640

≥5

≥600

≥520

≥10

16Mn

≥640

≥5

≥600

≥520

≥14

25Mn

≥640

≥5

≥600

≥510

≥15

27SiMn

≥800

≥5

≥760

≥610

≥10

ST52

≥640

≥5

≥600

≥520

≥14

SAE1026

≥640

≥5

≥600

≥510

≥15


About Us 

Qingzhou Longyue Hydralic Machinery Co., Ltd, Established in 2004, reowned firm engrossed in manufacturing honed tube, chrome rod over 14years. ISO9001 certificated.

Annual output 12 thousand tons, at present we are the biggest manufacturer in North China. 

Rich experience in production and export, prefect products & services gained recognition of clients from 20 countries & area. 


We sincerely hope there would be a chance for us to start business and build long term relationships may from an inquiry soon.


Products range as following:

Honed tube

Finished barrel for hydraulic cylinder

Ready to honed tube.

Cold drawn tube.

Hard chromed rod, bar, shaft.

Induction hardened rod, bar, shaft

Finished piston rod for hydraulic cylinder


http://www.lyhonedtube.com/