S235JR steel is a common carbon structural steel widely used in construction and industrial projects. GNEE Steel is a professional manufacturer and exporter of S235JR plates, sheets, and structural components, ensuring high-quality production, fast delivery, and full testing certificates.
S235JR steel
Within the first 100 words, we emphasize: we are the manufacturer. Our S235JR steel meets the EN 1.0038 standard with a minimum yield strength of 235 MPa and tensile strength ranging from 360–510 MPa, making it suitable for welded and bolted structural parts.
S235JR Steel Equivalent Grades
There are several internationally recognized equivalent grades of EN 1.0038 S235JR steel:
ST37-2 steel
SS400 mild steel
Q235B low carbon steel
A36 mild steel
A283 Gr. C carbon steel
These grades share similar chemical composition and mechanical properties, allowing engineers to select the appropriate material for their structural requirements.
Chemical Composition of S235JR and Equivalent Grades
EN standard 1.0038 material S235JR steel 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 |
| ST37-2 | 0.21 max | - | - | 0.065 max | 0.065 max | - | 0.010 max |
| SS400 | - | - | - | 0.050 max | 0.050 max | - | - |
| Q235B | 0.20 max | 0.35 max | 1.40 max | 0.045 max | 0.045 max | - | - |
| A36 | 0.26 max | 0.40 max | - | 0.040 max | 0.050 max | 0.20 min | - |
| A283 Gr. C | 0.24 max | 0.04 max | 0.09 max | 0.035 max | 0.040 max | 0.20 min | - |
This composition ensures excellent weldability and adaptability in industrial structures.
Mechanical Properties of S235JR Steel
Mechanical performance (3–16mm thickness)
| Grade | Yield Strength ReH (MPa) | Tensile Strength Rm (MPa) | Elongation A (%) | Charpy V Test (J) |
|---|---|---|---|---|
| S235JR | 235 | 360–510 | 26 | 27 |
| ST37-2 | 235 | 360–510 | 26 | 27 |
| SS400 | 245 | 400–500 | 21 | - |
| Q235B | 235 | 370–500 | 26 | 27 |
| A36 | 250 | 400–550 | 23 | - |
| A283 Gr. C | 205 | 380–515 | 25 | - |
S235JR and its equivalents combine good welding properties with reliable strength, ideal for structures where weight minimization and maximum strength are important.
S235JR Steel Applications
- Bolted and welded structural components
- Industrial frameworks and support beams
- Construction of bridges, towers, and heavy machinery
- General engineering structures requiring durable low-carbon steel
The excellent combination of strength, ductility, and weldability makes S235JR widely favored by engineers globally.
Why Choose GNEE S235JR Steel
GNEE Steel offers:
- Direct manufacturing and stock supply
- Full EN 10204 / MTC certificates
- Free technical advice, quotations, and samples
- Customized sizing and cutting services
Strict quality control including chemical analysis and mechanical testing
As a leading S235JR steel manufacturer, GNEE ensures high-quality production, consistent mechanical properties, and fast delivery for all industrial applications.
Contact us for the latest S235JR 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.