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Seamless Carbon Steel Hydraulic Tubing For Excavator Hydraulic Oil Pipe

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Address: Building B,Gaoqiao Industries Park,Chengdong Road,Jingang Town,Zhangjiagang city.

Contact name:Kelly

Zhangjiagang Sheng Ding Yuan Pipe-Making Co.,Ltd.

Seamless Carbon Steel Hydraulic Tubing For Excavator Hydraulic Oil Pipe

Country/Region china
Categories Earthwork Products

Product Details

Seamless Carbon Steel Hydraulic Tubing For Excavator Hydraulic Oil Pipe

Specifications:

  • Size:OD:4mm-60mm,WT:0.5mm-7mm
  • Standard:DIN2391/C,EN10305-4
  • Material: ST37.4,ST44.4,ST52.4,E235,E355.
  • Delivery State:NBK+Black phosphate.
  • Length:5.8m,6m.
  • Package:Bundles or wooden cases.
  • Surface Anti-rust:Both outside and internal tube surface flushing with anti-rust oil.
  • Surface quality:very smooth and bright without oxide scale,pock,strach,crack and other defects.
  • Surface Cleaness:clean without iron scrap,dust,better for hydraulic system life.
  • Properties:better extending rate and strength property,after bending with no deformation,after flattening and flaring process with no crack.
  • Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.

 

Chemcial Composition:

Chemical composition(cast analysis)a

Steel grade

% by mass

Steel name

Steel number

C

Si

Mn

P

Sb

AI

max.

max.

max.

max.

max.

min.

E215

1.0212

0.10

0.05

0.70

0.025

0.025

0.025

E235

1.0308

0.17

0.35

1.20

0.025

0.025

-

E355C

1.0580

0.22

0.55

1.60

0.025

0.025

-

 

 

Mechanical Properties:

Mechanical properties at room temperature

Steel grade

Minimum values for the delivery conditiona,b

Steel name

Steel number

﹢CC

﹢LCC

﹢SR

﹢Ad

﹢N

Rm

A

Rm

A

Rm

ReH

A

Rm

A

Rm

ReH

A

MPa

%

MPa

%

MPa

MPa

%

MPa

%

MPa

MPa

%

E215

1.0212

430

8

380

12

380

280

16

280

30

290 to 430

215

30

E235

1.0308

480

6

420

10

420

350

16

315

25

340 to 480

235

25

E355

1.0580

640

4

580

7

580

450f

10

450

22

490 to 630

355

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Applications:

Used in hydraulic system,including automotive Hydraulic power steering system, the clutch system, braking system, engine high pressure oil pipe, excavator hydraulic oil pipe,nested card connector (pipe joints) with matching,shippment industry.

 

Synopsis of Process Routing: Cold drawn and bright NBK seamless steel tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micro pore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.

 

Internal Surface quality Control:We adopt automatic inner surface cleaning machine, rotating brush cleaning and high pressure oil flushing to clean the inner and outer surface.The new steel tube production craftsmanship can effectively remove all particulate attached to the inner and outer surface of tubes and thus achieving the utmost surface cleaness and polishness.

 

Main Features: color of steel tube: bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.

Production Line:


 

Production Equipment:


 

 Packing and loading:


 

Laboratory Testing Equipment:

Tensile Strength Test,Water Pressure Test,Hardness Test,Chemical Compositon Test


 

Our Customer:

 

Certificate Approved:


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