Q 355b S355 S355j2g3+N Round Bar Alloy Steel S355j2 Bar
S355J2G3+N round bar is a high-strength structural steel alloy offering exceptional mechanical properties for demanding engineering applications.
Product Overview
S355 is a structural grade steel with a minimum yield strength of 355 N/mm², widely used in engineering and construction industries. This steel offers high yield and tensile strength and is supplied with various treatments and test options to ensure optimal performance in diverse projects.
Grade Specifications
EN 10025-2 S355J2G3 and S355J2+N are identical steel grades, both delivered in normalized condition. The "G3" and "N" symbols indicate normalized treatment, while "S" denotes Structural Steel. Impact test symbols include: JR (20°C), J0 (0°C), and J2 (-20°C).
S355J2G3 Characteristics
S355J2G3 is a low carbon, high tensile strength structural steel that can be readily welded to other weldable steels. With its low carbon equivalent, it possesses excellent cold-forming properties. The plate is produced by fully killed steel process and supplied in normalized or controlled rolling condition.
Applications
- Structural applications in freight cars and transmission towers
- Dump trucks, cranes, trailers, bulldozers, and excavators
- Forestry machines, railway wagons, and dolphins
- Penstocks, pipes, highway bridges, and building structures
- Oil and gas platforms, offshore structures, and shipbuilding
- Power plants, palm oil equipment, and machinery
- Fans, pumps, lifting equipment, and port equipment
Available Dimensions
Thickness: 8mm-300mm | Width: 1500-4020mm | Length: 3000-27000mm
Chemical Composition (max %)
| C |
Si |
Mn |
P |
S |
C.E. |
| 0.22 |
0.55 |
1.60 |
0.035 |
0.035 |
0.047 |
Mechanical Properties
| Thickness (mm) |
Yield Strength Reh Min (N/mm²) |
Tensile Strength Rm min (N/mm²) |
Elongation A5 min (%) |
Impact Values Charpy-V-Notch (-20°C) |
| ≥ 3 - ≤ 100 |
315 - 355 |
490-630 |
max 22 |
27 Joules |
Equivalent Grades
DIN 17100 ST52-3; ASTM A572-50; JIS G3106 SM490; JIS 3101 SS490, ABS EH36; LRS EH36; BS4360 Grade50D; BS4360 Gr50DD
Company Specialization
Our company specializes in low alloy high strength structural steel, primarily dealing with specification standard plates in EN 10025-2, EN 10025-3, EN 10025-4, EN 10025-6, ASTM A633, ASTM A573, ASTM A572, DIN 17100, JIS G3106, ASTM A709, ASTM A283, ASTM A529, ASTM A656, EN 10225, ISO 630, NFA 35-501, and other standards, with thickness capabilities up to 300mm.
