Products Description
S275J2 steel is mainly supplied in the form of hot-rolled section steel and is a high-strength structural steel grade widely used in riveted, bolted, or welded constructions of bridges and buildings.
S275J2 hot-rolled section steel features excellent weldability, allowing it to be easily joined with other weldable steels. Its low carbon content also provides good cold-forming properties, making it easy to process into the required shapes during construction and fabrication.
The typical chemical composition of S275J2 is: Carbon (C) ≤ 0.22%, Manganese (Mn) ≤ 1.60%, Silicon (Si) ≤ 0.55%, Phosphorus (P) ≤ 0.035%, and Sulfur (S) ≤ 0.035%.
Mechanical properties include a minimum yield strength of 275 MPa, tensile strength of 410–560 MPa, elongation ≥ 23%, and impact energy of 27J at 0°C, ensuring toughness and reliability even in low-temperature environments.
S275J2 section steel is available in a variety of common profiles, including I-beams, channels, angles, H-beams, square, and round bars. Section heights typically range from 100–600 mm, with widths and wall thicknesses customizable according to project requirements.
Its applications are extensive, covering bridge structures, factory buildings, warehouses, towers, heavy machinery frames, and various load-bearing structural components, providing safe and reliable performance under medium loads and complex conditions.
S275J2 hot rolled section steel Specification
Width: 2000--4000mm
Length:12000--14000mm
Thickness--150mm
EN10025 S275J2 section steel Chemical Composition Analysis
| Grade | C% Max Thickness/in mm | Mn% Max | P% Max | S% Max | N% Max | Cu% Max | ||
| ≤16 | ＞16 ≤40 | ＞40 | ||||||
| EN10025 S275J2 | 0.21 | 0.21 | 0.21 | 1.60 | 0.035 | 0.035 | - | 0.60 |
EN10025 S275J2 section steel Mechanical Properties
| Grade | Thickness mm | Yield Strength Mpa |
Tensile Strength Mpa |
| EN10025 S275J2 | ≤16 | 275 | 410 to 560 |
s275j2 Thickness Tolerance
|
Nominal Thickness t (mm) |
Tolerance (mm) Upper/Lower |
|---|---|
|
t ≤ 3 |
±0.3 |
|
3 < t ≤ 5 |
±0.4 |
|
5 < t ≤ 8 |
±0.5 |
|
8 < t ≤ 15 |
±0.6 |
|
15 < t ≤ 25 |
±0.8 |
|
25 < t ≤ 40 |
±1.0 |
|
40 < t ≤ 80 |
±1.2 |
|
80 < t ≤ 100 |
±1.4 |
|
100 < t ≤ 150 |
±1.8 |
|
150 < t ≤ 200 |
±2.2 |
|
200 < t ≤ 250 |
±2.6 |
S275J2 Equivalent Material
|
Country/Standard |
Equivalent Grade |
Notes |
|---|---|---|
|
USA (ASTM) |
A572 Grade 42 |
Similar strength and weldability |
|
Germany (DIN) |
ST44-3N |
Comparable toughness at -20°C |
|
Japan (JIS) |
SM400C |
Equivalent for structural use |
|
China (GB) |
Q275D |
Matches yield strength and impact |
|
France (AFNOR) |
E28-3 |
Similar properties for construction |
|
ISO |
FE430D |
General structural equivalent |
|
UK (BS) |
43D |
Comparable for offshore applications |
en 10025-2 s275j2 Benefits
High Strength-to-Weight Ratio: With a yield strength of 275 MPa, it enables lighter structures without sacrificing load-bearing capacity, reducing material costs in buildings and machinery.
Superior Low-Temperature Toughness: Tested at -20°C, en 10025-2 s275j2 performs reliably in cold environments, outperforming EN 10025-2 S275JR (+20°C).
Excellent Weldability: Low carbon equivalent (CEV ≈ 0.40) allows welding without preheating in many cases, facilitating efficient fabrication for large structures.
Atmospheric Corrosion Resistance: Additions of silicon and copper provide better resistance to weathering, making it suitable for outdoor applications like bridges.
Cost-Effectiveness: Offers higher strength than EN 10025-2 S235J2 steel, allowing for material savings while maintaining performance.
Compliance and Certification: Meets DIN EN 10025-2 and BS EN 10025-2 material grade requirements, with Gangsteel providing CE marking and EN 10204 3.1/3.2 certificates.
en 10025-2 s275j2 Applications
Construction: For bridges, buildings, and stadiums, where moderate strength and low-temperature toughness are required.
Offshore Engineering: In platforms and wind turbines, leveraging its corrosion resistance and impact toughness.
Heavy Machinery: For cranes, excavators, and mining equipment, where durability under dynamic loads is critical.
Shipbuilding: In hulls and superstructures, benefiting from its weldability and strength.
Energy Sector: For pipelines and storage tanks, similar to EN 10025 S355J2G3 material steel plates but with moderate strength.
Gnee's EN 10025-2 S275J2 plates are available in thicknesses from 6–300 mm, with options for cut-to-size and cladding for specialized applications.
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