What is the thermal expansion coefficient of SGCC coil?

Oct 22, 2025 Leave a message

What is the thermal expansion coefficient of SGCC coil?
Answer: The thermal expansion coefficient of SGCC coil is approximately 16×10⁻⁶/°C-17×10⁻⁶/°C.
How does SGCC coil perform in high-temperature environments?
Answer: The corrosion resistance of the zinc layer of SGCC coil will decrease in high-temperature environments, and the strength and ductility of the steel may also change. The specific performance depends on the temperature and duration. Generally speaking, SGCC coil is not recommended for long-term high-temperature use.
How does SGCC coil perform in low-temperature environments?
Answer: SGCC coil has good toughness in low-temperature environments and generally does not experience obvious brittle fracture. However, low temperatures may affect its processing performance, for example, requiring a larger bending radius when bending.
What factors affect the price of SGCC coil?
Answer: The price of SGCC coil is affected by factors such as the thickness of the zinc layer, the thickness of the steel, market supply and demand, raw material prices, and the manufacturer.
What is the price advantage of SGCC coil compared to other galvanized steel sheets? Answer: Compared with some high-performance galvanized sheets, such as aluminum-zinc sheets, SGCC coils are relatively cheap, and at the same time have better corrosion resistance and processing performance, and are cost-effective.