| Product Name: | Carbon Steel Seamless Tube | Technics: | Cold Drawn， Cold Rolling |
|---|---|---|---|
| Standard: | EN10305-1， EN10305-2，EN10305-3，EN10305-4，EN10305-5 | Material: | E215， E235， E255 |
| Length: | Single Random， Double Random & Cut Length | O.D.: | 4mm To 190mm |
| W.T.: | 0.5mm To 15mm | Type: | Seamless， Welded |
| Application: | Hydraulic And Pneumatic Power Systems，Automotive Engineering，Industrial Equipment，etc. | ||
| High Light: | Carbon Steel Seamless Cold Drawn Tube， EN10305-1 Hydraulic Tube， E235 Seamless Carbon Steel Pipe | ||
EN10305-1 / EN10305-4 E235 Carbon Steel Seamless Cold Drawn Tube
EN10305-1: This part of the standard covers seamless cold-drawn steel tubes of circular cross-section used in a wide range of applications， including hydraulic and pneumatic power systems， automotive engineering， and general engineering. The tubes are typically made from low carbon steel and have a high dimensional accuracy and a smooth surface finish.
EN10305-4: This part of the standard covers seamless cold-drawn tubes for hydraulic and pneumatic power systems. The tubes are typically made from low carbon steel and have a high dimensional accuracy and a smooth surface finish. They are also normalized to improve their mechanical properties.
EN10305-2: This part of the standard covers welded precision steel tubes that have been cold-drawn and normalized for use in hydraulic and pneumatic power systems， as well as other industrial applications where precision and durability are required.
EN10305-3: This part of the standard covers welded precision steel tubes that have been cold-drawn and normalized for use in automotive applications， such as fuel injection systems and power steering.
EN10305-5: This part of the standard covers welded and cold-sized square and rectangular steel tubes that have been normalized for use in mechanical and general engineering applications.
EN10305 Carbon Steel Tube Chemical Properties
| Pipe types | CHEMICAL COMPOSITION (LADLE ANALYSIS) | ||||||||||
| C% | Si% | Mn% | P% | S% | Cr% | Mo% | V% | Inne% | Cr+ Mo+ Ni Max% | Al.% | |
| E235 | <=0，17 | <=0，35 | <=1，20 | <=0，025 | <=0，025 | – | – | – | – | – | 0，020- 0，060 |
| E255 | <=0，21 | <=0，35 | 0，40-1，10 | <=0，025 | <=0，025 | – | – | – | – | – | 0，020- 0，060 |
| E355 | <=0，22 | <=0，55 | <=1，60 | <=0，025 | <=0，025 | – | – | – | – | – | 0，020- 0，060 |
EN10305 Carbon Steel Tube Mechanical Properties
| Mechanical properties at room temperature | |||||||||||||
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | +C | +LC | +SR | +A | +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 | 25 | 30 |
| E235 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340 to 480 | 235 | 25 |
| E355 | 1.058 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490 to 630 | 355 | 22 |
EN10305 Carbon Steel Tube Resistance Properties
| Pipe types | Steel grades | Resistance properties | |||||||||||
| +C | +LC | +SR | +A | +N | |||||||||
| Rm [MPa] | A% | Rm [MPa] | A% | Rm [MPa] | Re [MPa] | A% | Rm [MPa] | A% | Rm [MPa] | Re [MPa] | A% | ||
| Precision | E235 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340- 480 | 235 | 25 |
| E235， | E255 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440- 570 | 255 | 21 |
| E255， | E355 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490- 630 | 355 | 22 |
| E355 | C34E | 590 | 5 | 540 | 7 | – | – | – | 440 | 22 | >= 460 | 280 | 21 |
| According to PN-EN 10305-1 | C45E | 720 | 4 | 670 | 6 | – | – | – | 510 | 20 | >= 540 | 340 | 18 |
EN10305-4 E235N Carbon Steel Seamless Tube
The "N" in E235 N stands for normalized， which means the steel has been heat-treated to improve its mechanical properties.
This type of tube has a high dimensional accuracy and a smooth surface finish， which makes it suitable for applications where tight tolerances and a clean appearance are important.
Applications
EN10305 E235 tube is commonly used in a variety of applications， including:
Hydraulic and pneumatic power systems: The high precision and durability of EN10305 E235 tube make it ideal for use in hydraulic and pneumatic power systems， where it is used to transmit fluid or air under pressure.
Automotive engineering: EN10305 E235 tube is used in automotive applications， such as fuel injection systems， brake lines， and power steering systems. Its high dimensional accuracy and smooth surface finish make it well-suited for these types of applications.
General engineering: EN10305 E235 tube is used in a wide range of general engineering applications， such as machine building， construction， and manufacturing. Its versatility and ease of use make it a popular choice for many different types of projects.
Industrial equipment: EN10305 E235 tube is used in a variety of industrial equipment， such as boilers， heat exchangers， and pressure vessels. Its strength and durability make it well-suited for these types of applications.
