EN10305-2 E235 Welded Precision Steel Tubes
Material and Specification
EN10305-2 E235 Welded Precision Steel Tubes are part of the European standard for precision steel tubes, specifically for welded tubes. These tubes are designed for mechanical and precision engineering applications.
Key Features
Welded precision steel tubes
High precision
Excellent dimensional accuracy
Smooth surface finish
Tight tolerances
Chemical Composition
| Element | Chemical Composition (%) |
| C (Carbon) | 0.17 max |
| Si (Silicon) | - |
| Mn (Manganese) | 1.20 max |
| P (Phosphorus) | 0.025 max |
| S (Sulfur) | 0.025 max |
Mechanical Properties
| Property | Value |
| Tensile Strength | 340-480 MPa |
| Yield Strength (min) | 235 MPa |
| Elongation (min) | 25% |
| Hardness (HB) | 102 HRB max |
Physical Properties
| Property | Value |
| Density | 7.85 g/cm³ |
| Thermal Conductivity | 51.9 W/(m·K) |
| Specific Heat Capacity | 0.486 J/(g·K) |
| Electrical Conductivity | 13.0 m/Ωmm² |
Process Performance
| Property | Value |
| Weldability | Excellent |
| Machinability | Good |
| Formability | Excellent |
| Corrosion Resistance | Moderate |
Steel Grade
The steel grade E235 corresponds to the designation according to the EN standards.
Application
EN10305-2 E235 Welded Precision Steel Tubes find applications in various industries including:
Automotive industry (for components such as axles, drive shafts)
Mechanical engineering (for precision parts)
Hydraulic systems
Pneumatic systems
Possible Alternative Grades
While E235 is a commonly used grade, there are several alternative grades available for specific applications, including:
E215
E255
E355
Each alternative grade offers slightly different properties, allowing for optimization based on specific requirements in different applications.
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