1. Tensile strength: 349S54 steel grade has a high tensile strength, typically ranging from 830 to 1030 MPa, making it suitable for applications requiring high strength.
2. Yield strength: The yield strength of 349S54 steel grade is typically around 600 MPa, providing good resistance to deformation under stress.
3. Hardness: 349S54 steel grade exhibits a hardness of around 270 to 320 HB, indicating its ability to withstand wear and abrasion.
4. Elongation: The steel grade offers a moderate elongation of around 12%, allowing it to be formed into various shapes and sizes without compromising its strength.
5. Impact resistance: 349S54 steel grade demonstrates good impact resistance, making it suitable for applications where the material may experience sudden shock or vibration.
Technical properties:
1. Weldability: 349S54 steel grade can be welded using conventional methods such as arc welding, resistance welding, and electron beam welding, offering ease of fabrication.
2. Machinability: The steel grade exhibits good machinability, allowing for efficient shaping, drilling, and milling processes.
3. Corrosion resistance: 349S54 steel grade provides excellent resistance to corrosion in various environments, including acidic, alkaline, and marine conditions, owing to its high chromium content.
4. Heat treatment: The steel grade can be heat treated to enhance its mechanical properties, such as increasing hardness and strength.
Chemical composition:
The chemical composition of 349S54 steel grade typically includes:
– Carbon (C): 0.04-0.08%
– Manganese (Mn): 1.00% max
– Silicon (Si): 1.00% max
– Phosphorus (P): 0.040% max
– Sulfur (S): 0.030% max
– Chromium (Cr): 24-26%
– Nickel (Ni): 12-15%
– Molybdenum (Mo): 1.00-2.50%
– Nitrogen (N): 0.10% max
This composition imparts the desired mechanical and technical properties to 349S54 steel grade, making it suitable for a wide range of applications in industries such as aerospace, automotive, and manufacturing.
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