EN 10297-1 Cold Drawn Seamless Steel Tube For Mechanical And General Engineering Purposes
Material and Specification
EN 10297-1 is a European standard that specifies the technical delivery conditions for seamless circular steel tubes for mechanical and general engineering purposes. These tubes are produced by cold drawing and are available in various sizes, dimensions, and shapes. The standard covers both seamless tubes and hollow bars made from non-alloy and alloy steels.
Key Features
- Cold drawn seamless tube: The manufacturing process involves drawing the tube through a die to reduce its diameter and increase its length without any welding or joints. This process enhances the tube's mechanical properties and dimensional accuracy.
- Fine surface finish: The cold drawing process ensures a smooth and precise surface finish, promoting excellent aesthetic appeal and minimizing the risk of surface defects.
- Tight tolerances: EN 10297-1 specifies strict dimensional tolerances, ensuring the tubes meet the required specifications and can be easily assembled and used in various engineering applications.
- High strength and durability: The seamless steel tubes manufactured under this standard exhibit excellent mechanical properties, making them suitable for demanding mechanical and general engineering applications.
Chemical Composition
| Element | C (Carbon) | Si (Silicon) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) |
| Minimum (%) | - | - | - | - | - |
| Maximum (%) | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 |
Mechanical Properties
| Property | Value |
| Tensile Strength (Rm) | 700 - 850 MPa |
| Yield Strength (Rp0.2) | 600 MPa (minimum) |
| Elongation (A) | 16% (minimum) |
| Impact Properties (KV) | Minimum 27 Joules at -20°C (-4°F) |
| Hardness (HB) | 170 - 210 (maximum) |
Steel Grade
EN 10297-1 specifies several steel grades which include both non-alloy and alloy steels. Some of the commonly used steel grades under this standard are:
- E235
- E275
- E355
- 20MnV6
- 15NiCuMoNb5-6-4
Application
EN 10297-1 cold drawn seamless steel tubes find applications in various mechanical and general engineering fields including, but not limited to:
- Automotive industry: Parts requiring high strength and durability such as engine components, suspension systems, and drive shafts.
- Machinery and equipment: Precision components, hydraulic cylinders, and machine frames.
- Construction: Structural components, scaffolding, and support systems.
- Oil and gas industry: Pipelines, risers, and offshore structures.
Possible Alternative Grades
While EN 10297-1 provides a comprehensive range of steel grades suitable for mechanical and general engineering applications, alternative grades from other standards can be considered based on specific requirements. Some possible alternative grades include ASTM A519, DIN 2391, and JIS G3445, among others. It is essential to consult the relevant standards, specifications, and technical guidelines to choose the most suitable alternative grade for a particular application.
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