EN 10346 DX53D Hot Dip Coated Steel Tube for Automotive
Product Details
EN 10346 Welded Steel Tube
,Automobile Welded Steel Tube
,Hot-Dip Coated Welded Steel Tube
EN 10346 DX51D DX52D DX53D DX54D DX55D Cold Forming Tube Hot-Dip Coated Steel Flat Welded Steel Tube For Automobile
Material Specification
EN 10346 is a European standard that specifies the requirements for continuously hot-dip coated steel flat products. The DX series, including DX51D, DX52D, DX53D, DX54D, and DX55D, are grades within this standard that are specifically designed for cold forming applications. These grades are commonly used in the automotive industry for manufacturing flat welded steel tubes due to their excellent formability and corrosion resistance.
Key Features
- Corrosion Resistance: The hot-dip coating provides a protective layer that enhances the steel's resistance to corrosion, making it suitable for automotive applications.
- Formability: These grades are designed for cold forming, allowing for easy shaping and bending without compromising the material's integrity.
- Weldability: The steel's composition allows for efficient welding, which is crucial for manufacturing welded tubes.
- Versatility: Suitable for a wide range of applications beyond the automotive industry, including construction and appliance manufacturing.
Chemical Composition
The chemical composition of these steel grades is crucial for their performance characteristics. Below is a table presenting the typical chemical composition for these grades:
| Element | DX51D | DX52D | DX53D | DX54D | DX55D |
|---|---|---|---|---|---|
| C (max) | 0.12% | 0.12% | 0.12% | 0.12% | 0.12% |
| Si (max) | 0.50% | 0.50% | 0.50% | 0.50% | 0.50% |
| Mn (max) | 0.60% | 0.60% | 0.60% | 0.60% | 0.60% |
| P (max) | 0.10% | 0.10% | 0.10% | 0.10% | 0.10% |
| S (max) | 0.045% | 0.045% | 0.045% | 0.045% | 0.045% |
| Al (min) | 0.015% | 0.015% | 0.015% | 0.015% | 0.015% |
Mechanical Properties
The mechanical properties of these grades are tailored to meet the demands of cold forming and welding. The table below outlines the typical mechanical properties:
| Property | DX51D | DX52D | DX53D | DX54D | DX55D |
|---|---|---|---|---|---|
| Yield Strength (MPa) | ≥140 | ≥140 | ≥140 | ≥140 | ≥140 |
| Tensile Strength (MPa) | 270-500 | 270-420 | 270-380 | 270-350 | 270-330 |
| Elongation (%) | ≥22 | ≥26 | ≥30 | ≥34 | ≥38 |
Steel Grade
The DX series grades are differentiated primarily by their formability and mechanical properties. As the grade number increases, the material generally offers better formability and ductility, making DX55D the most formable among them.
Application
These steel grades are extensively used in the automotive industry for manufacturing components such as:
- Exhaust systems
- Structural reinforcements
- Body panels
- Chassis components
Additionally, they are used in other industries for applications like:
- Construction materials
- Household appliances
- Electrical enclosures
Possible Alternative Grades
Depending on the specific requirements, alternative grades may be considered. These include:
- EN 10142: Another standard for hot-dip galvanized steel, suitable for similar applications.
- ASTM A653: An American standard for hot-dip galvanized steel, offering comparable properties.
- JIS G3302: A Japanese standard for hot-dip galvanized steel, often used as an alternative in international markets.
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