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S235JR is a non-alloy structural steel grade specified under EN 10025-2, one of the most widely recognized European standards for hot rolled structural steel. Known for its excellent weldability, good formability, and reliable mechanical properties, S235JR is widely used in general construction, steel fabrication, machinery manufacturing, and infrastructure projects.
The designation S235JR has a specific meaning:
S = Structural Steel
235 = Minimum yield strength of 235 MPa
JR = Minimum impact energy of 27 Joules at +20°C
Although S235JR has a lower yield strength than higher-grade steels such as S355JR Steel , it remains one of the most economical and versatile materials for light to medium structural applications. Its balance of strength, weldability, and affordability makes it a preferred choice for many engineering and fabrication projects.
TJMC Steel supplies S235JR in a wide range of structural products, including Steel H Beams, Steel I Beams , Steel Angle Bar , Steel Channels , and Cold Formed Purline.
S235JR is produced with controlled chemical composition to ensure excellent processing performance while maintaining sufficient structural strength.
| Element | Maximum Content (%) |
|---|---|
| Carbon (C) | 0.17 |
| Silicon (Si) | 0.35 |
| Manganese (Mn) | 1.40 |
| Phosphorus (P) | 0.035 |
| Sulfur (S) | 0.035 |
| Nitrogen (N) | 0.012 |
The relatively low carbon content improves weldability and reduces the risk of cracking during fabrication, making S235JR particularly suitable for welded steel structures.
S235JR provides dependable mechanical performance for a wide variety of structural applications where moderate strength is sufficient.
| Property | Typical Value |
|---|---|
| Yield Strength | ≥235 MPa |
| Tensile Strength | 360–510 MPa |
| Elongation | ≥26% |
| Impact Energy | 27 J at +20°C |
Its excellent ductility and forming properties make S235JR easy to process using cutting, welding, drilling, bending, and machining techniques commonly employed in steel fabrication.
Although exact equivalents depend on design codes and project specifications, S235JR is generally comparable to several international structural steel grades.
| S235JR | Comparable Grade | Standard |
|---|---|---|
| S235JR | ASTM A36* | ASTM |
| S235JR | Q235B | GB/T |
| S235JR | SS400 | JIS |
| S235JR | Fe360B | Former DIN |
*ASTM A36 and S235JR are often considered similar for general structural applications, but their chemical composition, testing requirements, and certification standards are not identical. Material substitution should always follow project specifications.
One of the most common questions from engineers and buyers is how S235JR compares with S355JR.
| Property | S235JR | S355JR |
|---|---|---|
| Yield Strength | 235 MPa | 355 MPa |
| Tensile Strength | 360–510 MPa | 470–630 MPa |
| Weldability | Excellent | Excellent |
| Fabrication | Excellent | Excellent |
| Typical Applications | General Structures | Heavy Structures |
S235JR is ideal for light to medium structural applications where cost efficiency and ease of fabrication are priorities. S355JR, on the other hand, is better suited for bridges, high-rise buildings, offshore structures, and projects requiring higher load-bearing capacity.
For engineering projects designed under European standards, selecting the appropriate steel grade should always consider structural calculations, service conditions, and applicable regulations.
Thanks to its versatility, S235JR is widely used across multiple industries.
Typical applications include:
Commercial buildings
Residential construction
Steel fabrication
Warehouses
Agricultural buildings
Equipment frames
Light industrial structures
Structural supports
Depending on project requirements, S235JR can be supplied as Steel H Beams , Steel I Beams , Steel Angle Bar , Steel Channels and Cold Formed Purline.
S235JR remains one of the most popular structural steels because it offers several practical advantages:
Excellent weldability and machinability
Good cold-forming performance
Reliable structural strength for general applications
Economical material cost
Widely available across European markets
Suitable for fabrication and mass production
Compatible with painting and galvanizing processes
These benefits make S235JR an excellent choice for projects requiring dependable performance without the additional cost of higher-strength steel grades.
TJMC Steel supplies S235JR in a complete range of structural steel products, including:
We also offer customized cutting, drilling, welding preparation, galvanizing, painting, and export packaging according to customer specifications.
A1: S235JR is a European structural steel grade defined in EN 10025-2. The "235" indicates a minimum yield strength of 235 MPa, while "JR" means the material achieves an impact energy of 27 Joules at +20°C.
A2: They have similar applications and mechanical performance, but they belong to different standards and are not exact equivalents. Material selection should follow engineering specifications.
A3: Yes. S235JR offers excellent weldability and is suitable for most conventional welding methods.
A4: The main difference is yield strength. S355JR provides higher strength for heavy-duty structures, while S235JR is generally used in standard structural applications.
A5: TJMC Steel supplies S235JR H Beams, I Beams, Steel Plates, Channels, Angles, and other structural steel products.
Looking for a reliable supplier of S235JR structural steel?
TJMC Steel provides high-quality S235JR products in a variety of structural forms, helping contractors, distributors, and fabricators source dependable steel for construction and industrial projects worldwide.
Contact us today to receive technical support, product recommendations, or a customized quotation.
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