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Honed tube

  • st52 seamless hydraulic steel tube suppliers
  • st52 seamless hydraulic steel tube suppliers
  • st52 seamless hydraulic steel tube suppliers
st52 seamless hydraulic steel tube suppliersst52 seamless hydraulic steel tube suppliersst52 seamless hydraulic steel tube suppliers

st52 seamless hydraulic steel tube suppliers

  • I.D. Range: 26-800mm
  • Tolerance: ISO H8
  • Straightness: 1/1000mm
  • Material: C20, E355, ST52, 25Mn
  • Product description: 15+years professional manufacturer & supplier of Honed tubes, Chrome plated rods. experience in Vietnam, Thailand, Brazil, Egypt, Saudi Arabia, UAE, Russia, Singapore market.
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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

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·


Advantage
>15+years professional manufacturer & supplier of honed tube, Chrome plated rod.
>Experience in Vietnam, Thailand, Brazil, Egypt, Saudi Arabia, UAE, Russia, Singapore market.
>ISO9001:2008, SGS, BV, CNAS Certificated.
>Biggest manufacturer & wholesaler in local market.
>7*24 at your service, on time respond.
>One-stop collection.


Contact Us

Contact: Dooharvest

Phone: +86 186 6128 5080

Tel: +86 186 6128 5080

Add: Economic Development Zones Huishan, Wuxi, Jiangsu, China