S420N / 1.8902 Structural Steel Plate

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