S235JR steel is a widely used low carbon structural steel produced according to EN 10025-2. As a professional steel manufacturer and exporter, GNEE Steel supplies S235JR steel plates, sheets, and customized structural products for global construction and engineering projects.
S235JR steel
Within the first 100 words, it is important to clarify who we are. GNEE is a direct manufacturer and long-term stockholder, not a trader. All S235JR steel supplied by GNEE is produced from fully killed steel with stable mechanical properties, excellent weldability, and reliable quality control.
Meaning of S235JR Steel Grade
Understanding the designation helps engineers select the right material.
"S" = Structural steel
"235" = Minimum yield strength of 235 MPa
"JR" = Charpy V-notch impact test of 27 J at +20°C
S235JR steel is designed for general structural use at normal service temperatures.
S235JR Steel Equivalent Grades (EN / DIN / ASTM)
S235JR steel has several equivalent grades across different standards:
EN / EU: S235JR
DIN (Germany): St37-2
SAE / AISI: 1015
These grades share similar chemical composition and mechanical behavior, making S235JR a globally accepted structural steel.
Chemical Composition of S235JR Steel (EN 10025-2)
The chemical composition ensures good weldability and machinability.
| Element | C | Mn | Si | P | S |
|---|---|---|---|---|---|
| Max (%) | 0.17 | 1.40 | 0.35 | 0.045 | 0.045 |
Low carbon content allows S235JR steel to be easily welded without preheating in most applications.
Mechanical Properties of S235JR Steel Plate
Mechanical Performance of S235JR Steel
| Property | Value |
|---|---|
| Yield Strength | ≥235 MPa |
| Tensile Strength | 360–510 MPa |
| Elongation | 20–22% |
| Impact Energy | 27 J at +20°C |
| Hardness (HB) | 120–160 HB |
The JR impact requirement at room temperature makes S235JR suitable for standard structural environments.
Key Properties of S235JR Carbon Structural Steel
S235JR steel offers a balanced combination of performance and cost:
- Excellent weldability – suitable for welded structures
- Good machinability – easy cutting, drilling, and forming
- Cost-effective – ideal for large-volume projects
- Good availability – widely produced and stocked
- Surface treatable – corrosion resistance can be improved by painting or galvanizing
These properties make S235JR one of the most commonly used structural steels worldwide.
Applications of S235JR Steel Plate and Sheet
S235JR steel is widely used in multiple industries:
- Construction & civil engineering (buildings, bridges, infrastructure)
- Structural components (beams, frames, chassis parts)
- Mechanical engineering (equipment and machine parts)
- Automotive industry (load-bearing components)
- Pipes and coatings (water, gas, and liquid transportation)
Thanks to its low carbon content and stable performance, S235JR steel is a reliable choice for general-purpose structural applications.
Why Choose GNEE S235JR Steel
When sourcing S235JR steel plates, GNEE offers clear advantages:
- Direct supply from manufacturer
- EN 10204 3.1 / Mill Test Certificate available
- Custom cutting and processing services
- Stable quality and fast delivery
- Professional technical support for projects
S235JR steel plate is an ideal material for construction and general engineering projects due to its excellent weldability, stable mechanical properties, and cost efficiency.
As a trusted manufacturer and exporter, GNEE Steel ensures consistent quality, full certification, and global delivery.
Contact us for the latest S235JR steel plate price list, free samples, and project support.
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.