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Understanding Steel EN 10025-2-S235JR AR Equivalent: A Comprehensive Guide
When it comes to selecting the right steel for your construction or engineering project, it’s crucial to understand the specifications and properties of the material. One such material is the steel grade EN 10025-2-S235JR AR equivalent. This grade is widely used in various industries due to its excellent mechanical properties and versatility. In this article, we will delve into the details of this steel grade, its applications, and its equivalent grades.
What is EN 10025-2-S235JR AR Equivalent?
EN 10025-2-S235JR AR equivalent refers to a specific type of structural steel that meets the requirements of the European standard EN 10025-2. This standard specifies the technical delivery conditions for non-alloy structural steels. The “S235JR” part of the grade denotes the material’s chemical composition and mechanical properties, while “AR” stands for “as-rolled,” indicating that the steel has not been heat-treated after rolling.
Chemical Composition
The chemical composition of S235JR steel is as follows:
| Element | Maximum Percentage (%) |
|---|---|
| Carbon (C) | 0.17 |
| Manganese (Mn) | 1.60 |
| Sulfur (S) | 0.045 |
| Phosphorus (P) | 0.045 |
| Other Elements | 0.03 or less |
This composition ensures that the steel has good formability, weldability, and strength, making it suitable for various applications.
Mechanical Properties
The mechanical properties of S235JR steel are as follows:
| Property | Minimum Value | Maximum Value |
|---|---|---|
| Yield Strength (MPa) | 235 | – |
| Tensile Strength (MPa) | 360 | 490 |
| Elongation at Break (%) | 22 | – |
These properties make S235JR steel suitable for applications that require good formability, weldability, and tensile strength.
Applications
S235JR steel is widely used in various industries due to its excellent properties. Some of the common applications include:
- Construction of buildings and bridges
- Manufacturing of machinery and equipment
- Production of automotive parts
- Shipbuilding
- Manufacturing of pressure vessels
Equivalent Grades
EN 10025-2-S235JR AR equivalent has several other grades that are similar in composition and properties. Some of the common equivalents include:
- A36 (American Standard)
- Fe360B (Chinese Standard)
- ST37-2 (German Standard)
- SM400A (Japanese Standard)
These equivalent grades can be used interchangeably in most applications, depending on the specific requirements of the project.
Conclusion
EN 10025-2-S235JR AR equivalent is a versatile and widely used structural steel grade. Its excellent mechanical properties, chemical composition, and applications make it a popular choice in various industries. By understanding the details of this steel grade, you can make informed decisions when selecting the right material for your project.