Ss400 is a commonly used structural steel grade in various applications. Here are some key properties of SS400 steel:
Chemical Composition:
Carbon (C): 0.05-0.25%
Silicon (Si): 0.15-0.40%
Manganese (Mn): 0.50-1.50%
Phosphorus (P): ≤0.050%
Sulfur (S): ≤0.050%
Mechanical Properties:
Tensile Strength: 400-510 MPa
Yield Strength: 205 MPa (min)
Elongation: 21% (min) in 200mm, 25% (min) in 50mm
Brinell Hardness: Approximately 160 HB
Physical Properties:
Density: 7.85 g/cm³
Melting Point: 1434-1505°C
Specific Heat Capacity: 486 J/kg·K
Thermal Conductivity: 52.2 W/m·K at 100°C
Weldability: SS400 steel has good weldability using various welding methods such as arc welding, resistance welding, and brazing. Preheating before welding is recommended to avoid cold cracking.
Machinability: SS400 steel exhibits good machinability when compared to other structural steels. Suitable cutting tools and machining parameters should be used for optimal results.
Corrosion Resistance: SS400 is not corrosion resistant and may require protective coatings or surface treatments to prevent rusting and degradation in corrosive environments.
Applications: SS400 is widely used in various structural applications, including building frames, machinery parts, bridges, and general fabrication. It is a versatile and cost-effective material with good strength and ductility.
It's important to note that these properties are general and can vary based on manufacturing processes, heat treatment, and specific product specifications. When working with SS400 steel, always refer to the relevant standards and ensure compliance with project requirements for the desired performance and safety.
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