Description
S355 Steel Plate
S355 Steel Plate is a high-strength structural grade that is widely used in various industries for its excellent mechanical properties, including superior resistance to corrosion and wear. This steel plate is frequently employed in the construction of bridges, offshore structures, and other demanding environments due to its excellent durability and performance under stress.
S355 vs S275
- S355: Known for higher tensile strength and yield strength, suitable for more demanding applications, especially in offshore and structural environments.
- S275: Easier to machine and weld than S355, making it ideal for general structural applications.
| Property | S355 | S275 |
|---|---|---|
| Tensile Strength | Higher | Moderate |
| Yield Strength | Higher | Lower |
| Application | Offshore, Bridges, High-stress environments | Structural, General applications |
S355 Steel Plate Specification
- Thickness: 5 mm to 200 mm
- Width: Up to 3.5 meters
- Length: Up to 12 meters
- Grades: J2 / JR / JO
- Standards: EN 10025, DIN 17102, ASTM, JIS G3106, GB/T700
- Manufacturers: Thyssen, Dillinger, Clabecq, and Mills
- Test Certificates: 3.2 certification to EN 10204
Common Uses:
- Construction (Bridges, Buildings)
- Engineering
- Energy and Power Industry
- Offshore structures
- Tanks and Heavy Machinery
S355 vs A36
- S355: European standard with higher strength and toughness for demanding environments.
- A36: American standard with moderate strength, often used in lighter structural applications.
S355 Steel Plate Price
- Prices vary based on the plate’s thickness, size, and market conditions. Generally, S355 is more expensive than S275 due to its enhanced mechanical properties.
S355 Steel Plate Properties
- Density: Approximately 7.85 g/cm³
- Tensile Strength: 470 to 630 MPa (depending on thickness)
- Yield Strength: 355 MPa
- Impact Strength: Tested for impact resistance at different temperatures, including -20°C (J2 grade).
Chemical Composition of S355 Steel Sheet
| Element | C (max) | Mn (max) | Si (max) | P (max) | S (max) | Cu (max) |
|---|---|---|---|---|---|---|
| S355 | 0.24 | 1.60 | 0.55 | 0.035 | 0.035 | 0.55 |
Mechanical Properties of S355 Plate
| Property | Value |
|---|---|
| Yield Strength | 355 MPa |
| Tensile Strength | 470-630 MPa |
| Elongation | 22% (for plates 3mm thick) |
| Impact Energy | 27J at -20°C (for J2 grade) |
Applications of S355 Plate
- Offshore platforms
- Heavy machinery
- Wind turbines
- Construction of bridges and buildings
- Shipbuilding
- General engineering and structural projects
S355 Steel Plate Sizes
S355 plates are available in various sizes and can be cut or processed as per project requirements. The most common plate sizes include:
- Thickness: 5 mm to 200 mm
- Width: Up to 3.5 meters
- Length: Up to 12 meters
S355 Charpy V-Notch Testing
S355 plates undergo Charpy V-Notch impact testing to determine their toughness at low temperatures, ensuring reliability in colder environments.
S355 Steel Plate Weight
The weight of S355 steel plates can be calculated based on their dimensions, using the density of steel (7.85 g/cm³). For instance, the weight per square meter for a 10mm thick plate would be approximately 78.5 kg.
S355 Steel Equivalent
S355 is equivalent to several other global standards, including:
- USA: ASTM A572 Grade 50
- Japan: SM490A
- Germany: St52-3
- China: Q345
