DIN 2413 E235 Hydraulic Steel Pipe Seamless Steel Tubes For Water Hydraulic Systems
DIN 2413 E235 E355 1.4571 Hydraulic Steel Pipe Seamless Steel Tubes for Water Hydraulic Systems
Material
DIN 2413 specifies the requirements for seamless steel tubes used in hydraulic systems. The primary materials used in these tubes are carbon steel and stainless steel, specifically grades E235, E355, and 1.4571. These materials are selected for their strength, durability, and resistance to corrosion, making them ideal for hydraulic applications.
Specification
The specification outlines the dimensional tolerances, mechanical properties, and chemical composition of the tubes. The tubes are manufactured to meet stringent quality standards, ensuring reliability and performance in hydraulic systems.
Key Features
- Seamless Construction: Provides uniform strength and eliminates the risk of weld defects.
- High Pressure Resistance: Designed to withstand high pressures typical in hydraulic systems.
- Corrosion Resistance: Especially with stainless steel grades, offering longevity in various environments.
- Dimensions: Ensures compatibility with hydraulic fittings and components.
- Versatile Applications: Suitable for various hydraulic systems, including those in industrial and automotive sectors.
Chemical Composition
| Steel Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| E235 | 0.12 | 0.10 | 0.60 | 0.025 | 0.025 | - | - | - |
| E355 | 0.20 | 0.10 | 1.60 | 0.025 | 0.025 | - | - | - |
| 1.4571 | 0.07 | 1.00 | 1.00 | 0.045 | 0.015 | 16.00 | 10.00 | 2.50 |
Mechanical Properties
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| E235 | 235 | 360-510 | 26 | 120 |
| E355 | 355 | 490-630 | 22 | 140 |
| 1.4571 | 210 | 500-700 | 40 | 160 |
Steel Grade
- E235: A low carbon steel grade with good weldability and machinability, commonly used in structural applications.
- E355: A higher carbon content steel that offers improved strength and is suitable for higher pressure applications.
- 1.4571: Austenitic stainless steel known for its excellent corrosion resistance, particularly in aggressive environments.
Application
These seamless steel tubes are widely used in hydraulic systems for:
- Industrial Machinery: Hydraulic presses, lifts, and other machinery requiring high-pressure fluid transfer.
- Automotive Systems: Brake lines, power steering, and other hydraulic components.
- Construction Equipment: Excavators, loaders, and other heavy machinery.
- Marine Applications: Hydraulic systems in ships and offshore platforms.
Possible Alternative Grades
- S235JR: A general structural steel grade with similar properties to E235.
- S355J2: A structural steel grade with higher strength compared to E355.
- 1.4401 (AISI 316): Another stainless steel alternative with excellent corrosion resistance for more demanding environments.
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