S235JR steel is a European standard non-alloy structural steel manufactured in accordance with EN 10025-2. It is a low carbon structural steel widely used in welded, bolted, and riveted structures.
As a professional steel manufacturer and global exporter, GNEE Steel supplies S235JR steel plates, sheets, and customized cut sizes directly from mill production.
S235JR steel
Within the first 100 words, it is important to clarify that we are the manufacturer and stockholder. GNEE maintains hundreds of thousands of tons of S235JR steel in ready stock, ensuring fast delivery for urgent projects.
Our products are exported to Europe, America, Southeast Asia, the Middle East, South America, and Africa with full quality certification.
What Is S235JR Steel and Its Equivalent Grade
S235JR steel belongs to low carbon structural steels and is equivalent to Q235B under the Chinese national standard. Due to its good weldability and formability, S235JR steel is commonly used for general structural applications.
Key characteristics of S235JR steel:
- Low carbon content for excellent weldability
- Suitable for welding, bolting, and riveting structures
- Stable mechanical properties under EN 10025-2
- Cost-effective solution for structural engineering
Chemical Composition of S235JR Steel Plate
The controlled chemical composition ensures good strength and processing performance.
S235JR Steel Chemical Composition (%):
| Element | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Max Content | ≤0.17 | ≤0.35 | ≤0.65 | ≤0.030 | ≤0.030 |
Low phosphorus and sulfur content improves toughness and welding reliability, making S235JR suitable for large-scale fabrication.
Mechanical Properties of S235JR Steel
S235JR Steel Mechanical Performance (EN 10025-2)
| Property | Value |
|---|---|
| Yield Strength | ≥225 MPa |
| Tensile Strength | 360–510 MPa |
| Elongation | ≥18% |
These properties allow engineers to optimize structural strength while minimizing material weight, especially in welded steel structures.
S235JR Steel Surface Quality Classification
-
Ordinary Surface (FA)
Allows shallow pickling marks
Minor defects such as slight pitting, scratches, and concave marks are acceptable
Defect depth must be less than half of the thickness tolerance
Minimum thickness must still be guaranteed
-
Higher Surface Quality (FB)
Pickling defects do not affect local shape
Allows minor scratches, slight indentations, light roll marks, and color variation
Suitable for applications with higher surface appearance requirements
Typical Applications of S235JR Carbon Structural Steel
S235JR steel plates and sheets are widely used in:
- Welded and bolted steel structures
- Building frames and industrial plants
- Bridges and transmission towers
- Machinery frames and equipment supports
- General fabrication and structural components
Its excellent weldability and processing performance make it one of the most commonly used carbon structural steels worldwide.
Why Choose GNEE as Your S235JR Steel Supplier
- GNEE Steel offers more than just material supply:
- Manufacturer-direct supply with stable rolling sources
- Large ex-stock availability on spot trade platforms
- Full Mill Test Certificates (EN 10204 3.1)
- Customized cutting and processing services
- Monthly stock exceeding 50,000 tons of related grades
In addition to S235JR steel, we also stock HI, 19Mn6, 17Mn4, and 15Mo3 steel plates, supporting multi-grade project procurement.
As a trusted manufacturer and global exporter, GNEE Steel supplies S235JR steel plates with stable quality, competitive pricing, and fast delivery. Whether your project involves welding, bolting, or riveting structures, S235JR steel provides a reliable and cost-effective solution.
Contact us for the latest S235JR steel plate price list, free samples, and project consultation.
What is S235JR material?
Steel grade S235JR is a popular general construction and machine steel that is made in accordance with the EN 10025-2 standard. Classification: Non-alloy structural steel. Products: Semi-finished products, long products and sheet hot-rolled products, wire rod and forgings.
What is S235JR steel equivalent to?
ASTM A36: ASTM A36 is an American standard carbon structural steel specification, which is often used in structural applications. It is closest to S235JR in terms of chemical composition.
What does the JR stand for in S235JR?
S235JR: The letter "S" stands for "Structural," indicating that the steel is a construction steel. The number "235" represents the minimum yield strength, i.e., 235 MPa (megapascals). The symbol "JR" refers to the toughness and impact resistance of the steel.
What is the yield strength of S 235 Jr?
Grade S235JR has a minimum yield strength of 235 MPa. The impact energy at a room temperature of 20°C is at least 27 joules. Steels of grade S235JR are suitable for low-stressed parts in steel and mechanical engineering.
Is S235JR a mild steel?
S235JR is a specific grade of mild steel defined under EN 10025. While it sits within the mild steel category, it has controlled chemical and mechanical properties that make it more predictable than generic or ungraded mild steel.
What is S235JR steel material?
S235JR is a low-carbon, non-alloy structural steel defined by the EN 10025-2 standard. The "S" stands for "structural," meaning it is intended for use in load-bearing parts of buildings, machinery, or infrastructure.
What is the difference between S235JR and S355JR?
Yield Strength: S235JR has a nominal yield strength of 235 MPa, while S355JR offers a higher yield strength of 355 MPa. This 50% increase in yield strength makes S355JR capable of withstanding greater loads, making it more suitable for high-stress structural applications.