Q255 Carbon Steel Coil is a type of low carbon structural steel material that adheres to the Chinese national standard GB/T 700. This grade of steel coil is primarily designed for general engineering and construction purposes where moderate strength, formability, and weldability are required.
Q255 Carbon Steel Coil is a type of low carbon structural steel material that adheres to the Chinese national standard GB/T 700. This grade of steel coil is primarily designed for general engineering and construction purposes where moderate strength, formability, and weldability are required.
Composition:
Q255 carbon steel coils typically consist of:
- Iron (Fe) as the primary component.
- Carbon (C): The main alloying element, with a relatively lower content compared to high-strength steels to ensure better ductility and ease of welding.
- Other elements like manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), etc., are present in controlled quantities to enhance hardness, strength, and machinability while maintaining cost-effectiveness.
Characteristics:
1. Moderate Strength: Q255 steel coils provide a minimum yield strength around 255 MPa, offering adequate load-bearing capacity for general applications.
2. Good Weldability: It possesses good weldability, which allows for easy joining by various welding methods without significant loss of strength or toughness.
3. Formability: Due to its lower carbon content, Q255 exhibits satisfactory cold forming properties, making it suitable for bending, rolling, and shaping into different profiles.
4. Machinability: It offers fair machinability, facilitating efficient cutting and machining processes.
5. Corrosion Resistance: As a plain carbon steel, Q255 has a limited resistance to corrosion; protective coatings or treatments may be necessary for prolonged exposure to harsh environments.
Use:
Q255 Carbon Steel Coils find widespread application across several industries:
1. Structural Engineering: Used in light-duty structures such as frames, brackets, and support members in buildings and bridges where moderate loads are expected.
2. Manufacturing Components: Ideal for producing parts that require good formability and weldability but not necessarily high strength, including machinery frames, base plates, and other mechanical components.
3. Sheet Metal Fabrication: Commonly used in sheet metal works involving stamping, bending, and deep drawing operations.
4. Piping Systems: For non-critical piping sections and supports.
5. Automotive Industry: In automotive body panels, chassis components, and other parts that need moderate strength and formability.
Please note that actual specifications can vary depending on the manufacturer's standards and the intended use. Always refer to official material data sheets or supplier documentation for specific details about a particular Q255 carbon steel coil product.
