S355JR S355J0 S355J2 S355K2 Low Alloy High Strength Steel Plate
Product Details
The S355 series steel plate is a low-carbon structural steel defined in the European standard EN 10025, characterized by high strength, good weldability, and mechanical properties.
S: Represents' structural steel '.
355: Represents a minimum yield strength of 355 megapascals (MPa).
The S355 series steel plates are widely used in structural engineering fields such as construction, bridges, machinery, ships, and mechanical manufacturing. The suffix "JR/J0/J2/K2" represents different impact toughness requirements and is the core indicator for distinguishing different models.
Chemical composition(%)
| Steel | C | C | C | Si | Mn | P | S | N | Cu |
| Thk (mm) | ≤16 | 16-40 | >40 | ||||||
| S355JR | 0.24 | 0.24 | 0.24 | 0.55 | 1.60 | 0.035 | 0.035 | 0.012 | 0.55 |
| S355J0 | 0.20 | 0.20 | 0.22 | 0.55 | 1.60 | 0.030 | 0.030 | 0.012 | 0.55 |
| S355J2 | 0.20 | 0.20 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | 0.55 | |
| S355K2 | 0.20 | 0.20 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | 0.55 |
Mechanical Properties(Mpa)
| Yield Strength Min. (Mpa) | |||||||||
| Thickness (mm) | ≤16 | 16-40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-200 | 200-250 | 250-400 |
| S355JR/S355J0 | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 | |
| S355J2/S355K2 | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 | 265 |
| Tensile Strength (Mpa) | |||||
| Thickness (mm) | <3mm | 3-100mm | 100-150mm | 150-250mm | 250-400mm |
| S355JR/S355J0 | 510-680 | 470-630 | 450-600 | 450-600 | |
| S355J2/S355K2 | 510-680 | 470-630 | 450-600 | 450-600 | 450-600 |
Key Difference: Impact toughness (quality level)
The suffix letters and numbers (JR, J0, J2, K2) represent the impact toughness grade of steel at a specific temperature. This is the most important criterion when choosing steel, especially in low temperature or dynamic load environments.
|
Grade |
Level |
Impact test temperature |
impact Values (KV) min |
Main features and uses |
|
S355JR |
JR |
+20°C |
27 J |
The most basic and commonly used level. Suitable for ordinary structures at room temperature, such as factories and general building structures |
|
S355J0 |
J0 |
0°C |
27 J |
Has a certain degree of low-temperature toughness. Suitable for environments where winter temperatures may be below 0 ° C, such as bridges and outdoor structures in areas with moderate low temperatures. |
|
S355J2 |
J2 |
-20°C |
27 J |
Very commonly used low temperature resistance grade. Widely used in low-temperature environments and structures that can withstand certain dynamic loads, such as wind turbine towers, offshore platforms, low-temperature pressure vessels, bridges and buildings in high-altitude regions. |
|
S355K2 |
K2 |
-40°C |
27 J |
A higher level of low-temperature toughness means better toughness. Used for critical structures with higher requirements for safety and brittle fracture resistance, such as important welding nodes, components that can withstand huge dynamic loads, and special structures in extremely cold regions |
Laser Cutting$ Flame Cutting
Our Advantages
1. More than 10,000 tons high strength steel plate in stock
2. Stead of Wugang steel ,Xing cheng steel, Nan gang Steel , China TOP 20 factories.
3.Tests: Salt spray test/Tensile test / Eddy current / Chemical composition test according to customers' request
4. Could cut use laser /flame to request shape.
Shipping&Package
- By bundles, each bundle weight under 3 tons, for small outer diameter round bar, each bundle with 4 - 8 steel strips.
- 20 feet container contains dimension, length under 6000mm
- 40 feet container contains dimension, length under 12000mm
- By bulk vessel, Freight charge is low by bulk cargo, and large Heavy sizes can not be loaded into containers can shipping by bulk cargo
