Product Catalog
Product Detailes:
Name: High Pressure Hydraulic Tubing/ Hydraulic Steel Tube / High Pressure Precision Cold Drawn Tubing
Place of Origin: China
Brand Name: Datong
Certification: ISO9001:2008
High pressure hydraulic tubing is made of cold drawn seamless precision tubes according to DIN 2391 made of toughened steel (ST37.4 and ST52.4).Available (external diameter) from 6 mm to 42mm with different wall thicknesses and lengths to 6 meters. The hydraulic steel tubing has a tensile strength greater than comparable annealed tubing. Our high pressure hydraulic tube is available in a range of size and pressure ratings and can be used in a wide variety of applications.
As a professional high pressure hydraulic tubing manufacturer and supplier,Datong has been supplying and exporting high pressure hydraulic steel tubes for almost 20 years.
Material Specifications: E235 (ST35 ST37.4), E355 (ST52 ST52.4),SS 304, SS 316
Size: 4mm to 190mm outer diameter
Type: Seamless Cold Drawn// Metric & Imperial Sized Carbon Steel Hydraulic Tubing, Dimensions and Pressure ratings
Dimension Specifications :DIN 2391/C (DIN EN 10305-1) DIN 2445/2 (DIN EN 10305-4)
Standard: DIN 2391/C (DIN EN 10305-1) DIN 2445/2 (DIN EN 10305-4)
Length: fixed 6m or as your request
Heat Treatment: BK, BKS, BKW, GBK, NBK
Process: perforation/pickling/phosphating/cold drawn/cold rolling/annealing/anaerobic annealing
Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends.
Packing: Bundle with steel strip and PE sheet or wooden case
There are two type of material grade for hydraulic steel tubes, ST52.4 and ST37.4. ST52.4 is high tensile strength tube means it has higher permissible working pressures by reduced tube wall thickness, and leading to reduced system overall weight. Please refer to chemical composition for ST52.4 and ST37.4 tube material:
Chemical Compositions Of Hydraulic Steel Tube Materials
Chemical Composition (%) | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
E355 (ST52.4) | ⩽0.22 | ⩽0.55 | ⩽1.6 | ⩽0.045 | ⩽0.045 |
E235 (ST37.4) | ⩽0.17 | ⩽0.35 | ⩽1.2 | ⩽0.045 | ⩽0.045 |
Steel grade | Yield strength | Tensile strength | Elongation | |
Name | Number | RH | Rm | A |
|
| min. | min. | min. |
|
| MPa | MPa | % |
E235 | 1.0308 | 235 | 340 to 480 | 25 |
E355 | 1.0580 | 355 | 490 to 630 | 22 |
Hydraulic Tube (ST52.4 NBK) Working Pressure Table
Description | Working Pressure (Bar) | Burst Pressure (Bar) |
10MM OD x 2.0MM THK x 6 MTR | 799 | 1919 |
12MM OD x 2.0MM THK x 6 MTR | 666 | 1599 |
14MM OD x 1.5MM THK x 6 MTR | 428 | 1028 |
14MM OD x 2.0MM THK x 6 MTR | 571 | 1371 |
15MM OD x 1.5MM THK x 6 MTR | 400 | 959 |
15MM OD x 2.0MM THK x 6 MTR | 533 | 1279 |
15MM OD x 2.5MM THK x 6 MTR | 666 | 1599 |
16MM OD x 1.5MM THK x 6 MTR | 375 | 899 |
16MM OD x 2.0MM THK x 6 MTR | 500 | 1199 |
16MM OD x 3.0MM THK x 6 MTR | 749 | 1799 |
18MM OD x 1.5MM THK x 6 MTR | 333 | 800 |
18MM OD x 2.0MM THK x 6 MTR | 444 | 1066 |
20MM OD x 2.0MM THK x 6 MTR | 400 | 959 |
20MM OD x 2.5MM THK x 6 MTR | 500 | 1199 |
20MM OD x 3.0MM THK x 6 MTR | 599 | 1439 |
22MM OD x 2.0MM THK x 6 MTR | 363 | 872 |
25MM OD x 2.0MM THK x 6 MTR | 320 | 768 |
25MM OD x 2.5MM THK x 6 MTR | 400 | 959 |
25MM OD x 3.0MM THK x 6 MTR | 480 | 1151 |
25MM OD x 4.0MM THK x 6 MTR | 639 | 1535 |
25MM OD x 5.0MM THK x 6 MTR | 799 | 1919 |
28MM OD x 2.0MM THK x 6 MTR | 285 | 685 |
28MM OD x 3.0MM THK x 6 MTR | 428 | 1028 |
30MM OD x 2.0MM THK x 6 MTR | 266 | 640 |
30MM OD x 3.0MM THK x 6 MTR | 400 | 959 |
30MM OD x 4.0MM THK x 6 MTR | 533 | 1279 |
35MM OD x 3.0MM THK x 6 MTR | 343 | 822 |
35MM OD x 4.0MM THK x 6 MTR | 457 | 1096 |
38MM OD x 3.0MM THK x 6 MTR | 315 | 757 |
38MM OD x 4.0MM THK x 6 MTR | 421 | 1010 |
38MM OD x 5.0MM THK x 6 MTR | 526 | 1262 |
42MM OD x 3.0MM THK x 6 MTR | 285 | 685 |
42MM OD x 4.0MM THK x 6 MTR | 381 | 914 |
42MM OD x 5.0MM THK x 6 MTR | 476 | 1142 |
45MM OD x 5.0MM THK x 6 MTR | 444 | 1066 |
50MM OD x 5.0MM THK x 6 MTR | 400 | 959 |
50MM OD x 6.0MM THK x 6 MTR | 480 | 1151 |
50MM OD x 10.0MM THK x 6 MTR | 799 | 1919 |
54MM OD x 6.0MM THK x 6 MTR | 444 | 1066 |
60MM OD x 5.0MM THK x 6 MTR | 333 | 800 |
60MM OD x 6.0MM THK x 6 MTR | 400 | 959 |
High pressure hydraulic tubing is used in a variety of industries, including oil and gas, waterjet cutting, food processing, petrochemical/chemical, and many others for fluid handling.
Oil and gas: The oil and gas industry has many uses for high pressure stainless steel tubing. In the field, high-pressure tubing is used for down-hole control systems, hydraulic and pneumatic piping, chemical injection modules, vacuum systems, and much more.
Chemical/petrochemical: High pressure hydraulic steel tubing in the petrochemical industry regularly carries chemicals and other hazardous fluids that could harm equipment and personnel if improperly handled. High-pressure stainless-steel coned and threaded tubing is used to make safe connections.
Food processing: High-Pressure Stainless-Steel tubing is used in high pressure food processing lines.
Chemical Compositions Of Hydraulic Steel Tube Materials
Chemical Composition (%) | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
E355 (ST52.4) | ⩽0.22 | ⩽0.55 | ⩽1.6 | ⩽0.045 | ⩽0.045 |
E235 (ST37.4) | ⩽0.17 | ⩽0.35 | ⩽1.2 | ⩽0.045 | ⩽0.045 |
1.Extensive production experience: more than 20 years manufacturing experience for honed tube and chrome plated rod, in Australia, Thailand, Brazil, India, Iran, Indonesia, South Africa and other countries have long-term buyers.
2.Advanced production equipment: cold drawing machine, honing machine, skiving & roller burnishing machine, straightening machine, polishing machine, heat treatment furnace, grinding machine, etc. We have professional technicians do regular scheduled maintenance on these machines to guarantee them work well.
3.High quality raw material: our raw material mainly from some famous steel mills, such as TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.
4.High precision: Honed Tube, inside surface roughness 02-0.4 um, straightness max 0.5/1000, strict tolerance DIN2391 H8. Skived & Roller Burnished Tube, inside surface roughness under 0.2 um, straightness max 0.2/1000, strict tolerance DIN2391 H8. Chrome Plated Rod, chrome layer 10 micron to 100 micron, strict tolerance ISO f7.
5.Strict quality control: we have professional in-house QC to inspect all products. We will do Chemical Composition Test, Mechanical Property Test, Dimension Inspect, Roughness Test, Chrome Layer Test and other tests in need before delivery.
6.Safe packing: an-rust oil on tubes and rods before delivery. Plastic caps on both ends to protect tube inside surface. Then be packed with seaworthy package or in wooden case.