Steel S420N
📌 Overview and Technical Specifications
Steel S420N is a high-strength, normalized low-alloy structural steel with excellent weldability, toughness, and resistance to mechanical stress. It is designed for use in structural applications that require increased durability and load-bearing capacity.
🛠 Specifications:
- Hardness: 180–250 HB
- Thickness: from 6 mm to 120 mm
- Yield strength: ≥ 420 MPa
- Tensile strength: 520–680 MPa
- Elongation: 15–22%
🧪 Chemical Composition
- Carbon (C): ≤0.18%
- Silicon (Si): ≤0.50%
- Manganese (Mn): 1.00 – 1.80%
- Phosphorus (P): ≤0.025%
- Sulfur (S): ≤0.015%
- Chromium (Cr): ≤0.30%
- Nickel (Ni): ≤0.50%
- Molybdenum (Mo): ≤0.20%
- Vanadium (V): ≤0.10%
- Niobium (Nb): ≤0.05%
⚙ Applications
Steel S420N is widely used in the following industries:
- 🏗 Structural engineering and construction of buildings and bridges
- 🚆 Manufacturing of heavy machinery and transport equipment
- ⚡ Power plants and energy infrastructure
- 🏭 Industrial frameworks and mechanical engineering
- 🌉 Civil engineering projects requiring high load-bearing strength
🌟 Features
- ✅ High strength and toughness
- ✅ Excellent weldability with conventional methods
- ✅ Enhanced resistance to mechanical stress and fatigue
- ✅ Superior stability in structural applications
- ✅ Suitable for use in high-load environments
Steel sheetS420N/ 1.8902
| Delivery forms of steelS420Nin sheets | ||||
| Steel grade | Certification | Dimensions [mm] | ||
| Thickness | Width | Length to | ||
| S420N/ 1.8902 | 3.1 acc. to EN 10204, AD 2000 W1 | 4 – 200 | 1000 – 3000 | 16000 |




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