S235JR and S275JR steel plates are widely used in structural engineering, construction, and heavy machinery applications. GNEE Steel is a professional steel manufacturer and supplier, providing direct access to high-quality S235JR and S275JR plates with full certification and fast delivery.
S235JR
S235JR and S275JR steel plates are ideal for bridges, buildings, and industrial frameworks. Our factory stocks large volumes, ensuring prompt supply for urgent projects.
Mechanical Properties: S235JR vs S275JR
The primary difference between these two grades lies in yield strength, tensile strength, and elongation.
| Property | S235JR | S275JR |
|---|---|---|
| Yield Strength (MPa) | 235 | 275 |
| Tensile Strength (MPa) | 360–510 | 410–560 |
| Elongation (%) | 26 | 23 |
Key Takeaways:
S275JR is stronger than S235JR, suitable for high-rise buildings, heavy machinery, and large structures.
S235JR is more ductile, ideal for standard construction and structural components.
Chemical Composition of S235JR and S275JR
Both steel grades have similar chemical elements, but minor differences contribute to higher strength in S275JR.
| Element | S235JR (%) | S275JR (%) |
|---|---|---|
| Carbon (C) | ≤0.17 | ≤0.20 |
| Manganese (Mn) | 1.40 | 1.50 |
| Phosphorus (P) | ≤0.035 | ≤0.035 |
| Sulfur (S) | ≤0.035 | ≤0.035 |
Bullet Points:
Higher carbon and manganese in S275JR increases yield strength.
Both grades maintain excellent weldability and machinability.
Compliance with EN 10025-2 standard ensures quality and traceability.
Typical Sheet Sizes and Applications
Available Sizes (Stock):
Thickness: 3 mm – 200 mm
Width: 1000 mm – 3000 mm
Length: Up to 12,000 mm
Applications:
Bridges and towers
Structural frameworks of buildings
Heavy machinery components
Vehicle chassis and industrial equipment
Advantages of GNEE Supply:
Direct factory pricing, no middleman
Fast delivery for urgent projects
Full material test certificates (MTC, EN 10204 3.1)
Support for 3rd-party inspection (SGS, BV, Lloyd's)
Why Choose S275JR Over S235JR?
- Higher strength: For heavy-load applications.
- Reduced deformation risk: Safer for critical infrastructure.
- Wide availability: GNEE stocks both grades with immediate shipment options.
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Whether your project requires the ductility of S235JR or the strength of S275JR, GNEE Steel provides both with guaranteed quality, full documentation, and competitive pricing.
Contact us now for latest S235JR & S275JR steel plate price list and free 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.