S235JR and S235JRG2 steel are low-carbon structural steels under EuroNorm EN 10025, superseded by EN 10025-2 (2006). Both are widely used in riveted, bolted, and welded construction of bridges, buildings, and heavy structures.
S235JR
GNEE Steel is a professional manufacturer and exporter, offering high-quality S235JR & S235JRG2 steel plates with guaranteed mechanical properties, chemical composition, and EN 10204 / Mill Test Certificates (MTC).
Within the first 100 words, it is important to clarify: we are the manufacturer, providing direct stock supply, technical guidance, and project support.
Difference Between S235JR and S235JRG2 Steel Plate
The main difference lies in the steel production type:
S235JR: Base structural steel; Charpy impact test optional
S235JRG2: Rimming steel not allowed; full structural quality
Both grades have the same numerical designation (1.0038) and are intended for structural applications.
Symbolic designation meaning:
- S: Structural grade
- 235: Minimum yield strength 235 MPa (t ≤16mm)
- JR / JRG2: JR = Base steel; G2 = rimming steel not allowed
These standards ensure consistent strength, weldability, and cold-forming properties.
Chemical Composition of S235JR Steel Plate
S235JR (EN 10025-2) chemical composition (%):
| Grade | C (t≤16mm) | Si | Mn | P | S | Cu | N |
|---|---|---|---|---|---|---|---|
| S235JR | 0.19 max | - | 1.5 max | 0.045 max | 0.045 max | 0.60 max | 0.014 max |
The composition provides excellent weldability, ductility, and structural reliability.
Mechanical Properties of S235JR Steel Plate
| Grade | Yield Strength ReH (MPa) | Tensile Strength Rm (MPa) | Elongation A (%) |
|---|---|---|---|
| S235JR | 235 | 360–510 | 26 |
Both S235JR and S235JRG2 steel plates meet structural performance requirements for bridges, buildings, and industrial frameworks.
Applications of S235JR & S235JRG2 Steel Plates
S235 series carbon structural steel plates are mainly used in:
- Riveted, bolted, and welded construction
- Bridges, towers, and industrial frameworks
- Buildings and heavy engineering structures
The S235 series also includes S235J0, S235J2, and other low-carbon structural steels suitable for different impact and temperature requirements.
Why Choose GNEE for S235JR & S235JRG2 Steel
GNEE Steel offers:
- Direct manufacturing and stock availability
- EN 10204 / MTC certification for all plates
- Free technical consultation and project support
- Custom cutting and fabrication services
- Strict quality control including chemical and mechanical testing
This ensures your construction projects get reliable steel with guaranteed properties and delivery.
For high-quality structural steel, GNEE Steel supplies S235JR and S235JRG2 plates with full traceability, excellent weldability, and reliable mechanical performance. These plates are ideal for bridges, buildings, cranes, and industrial equipment.
Contact us today for the latest S235JR & S235JRG2 steel plate price list
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.