To have a good understanding of the characteristics of galvanized channel steel, it is necessary to start with its corrosion resistance, high-temperature oxidation resistance, physical functions, and other aspects, and conduct a more systematic understanding. Below, we will introduce the characteristics of galvanized channel steel!
Corrosion resistance: Galvanized channel steel has the ability to resist general corrosion similar to unstable nickel chromium alloy 304. Long term heating at a temperature scale of chromium carbide may affect the performance of alloys 321 and 347 in harsh corrosive media. Mainly used for high-temperature use, high temperature use requires strong resistance to sensitization to prevent intergranular corrosion at lower temperatures.
High temperature oxidation resistance of galvanized channel steel: Galvanized channel steel has high temperature oxidation resistance, but the oxidation rate is influenced by inherent factors such as exposure environment and product morphology.
Physical function of galvanized channel steel: the total Heat transfer coefficient of metal depends on other factors besides the thermal conductivity of metal. In most cases, the heat dissipation coefficient of the film layer, the appearance of rust and metal. Stainless steel can maintain a neat appearance, so its heat transfer performance is better than other metals with higher thermal conductivity.
Galvanized channel steel is heated to 850-1250 ℃ and then subjected to heat treatment with a cooling rate of 1 ℃/s or higher. In this way, it can become a high-strength galvanized channel steel with Martensite structure containing more than 12% volume fraction, high strength, corrosion resistance, bending processing function and excellent toughness of welding heat affected zone above 730MPa. Reusing materials containing Mo, B, etc. can significantly improve the stamping processing function of welding parts.