🟪 Product Overview
S355 Steel Plate is one of the most widely used high‑strength structural steels in Europe and international markets. It offers:
- High yield strength (≥355 MPa)
- Excellent weldability
- Good impact toughness
- Reliable performance in structural applications
S355 is commonly used in construction, bridges, machinery, and heavy engineering projects.
🟪 S355 Grade Variants
S355 is divided into three main sub‑grades based on impact toughness requirements:
S355JR
- 27 J impact energy at +20°C
- Standard structural applications
S355J0
- 27 J impact energy at 0°C
- Better toughness for colder climates
S355J2
- 27 J impact energy at −20°C
- High toughness for low‑temperature environments
- Most popular grade for engineering and construction
🟪 Mechanical Properties (Typical)
| Grade | Yield Strength | Tensile Strength | Impact Toughness |
|---|
| S355JR | ≥355 MPa | 470–630 MPa | 27 J @ +20°C |
| S355J0 | ≥355 MPa | 470–630 MPa | 27 J @ 0°C |
| S355J2 | ≥355 MPa | 470–630 MPa | 27 J @ −20°C |
🟪 Chemical Composition (Typical)
| Element | S355JR (%) | S355J0 (%) | S355J2 (%) |
|---|
| C | ≤0.24 | ≤0.20 | ≤0.20 |
| Mn | ≤1.60 | ≤1.60 | ≤1.60 |
| Si | ≤0.55 | ≤0.55 | ≤0.55 |
| P | ≤0.045 | ≤0.040 | ≤0.040 |
| S | ≤0.045 | ≤0.040 | ≤0.040 |
🟪 Product Specifications
Thickness
Width
Length
Delivery Conditions
- Hot Rolled
- Normalized
- Thermo‑Mechanically Rolled
🟪 Applications
Construction & Infrastructure
- Steel structures
- Building frames
- Columns & beams
- Industrial buildings
Bridges & Engineering
- Bridge beams
- Girders
- Structural members
Machinery & Heavy Equipment
- Frames
- Components
- Load‑bearing parts
General Fabrication
- Platforms
- Support structures
- Welded assemblies
🟪 Why Choose WelSteels
- Full range of S355JR / S355J0 / S355J2
- Reliable mechanical properties
- Precision cutting and processing
- SGS / BV inspection
- Export‑grade seaworthy packaging
