What are the characteristics of galvanized channel steel?
Corrosion resistance: Galvanized channel steel has the ability to resist general corrosion similar to the unstable nickel chromium alloy 304. Prolonged heating in the temperature scale of chromium carbide degree may affect alloys 321 and 347 in harsh corrosive media. Mainly used for high temperature use, high temperature use requires data to have strong sensitivity to prevent intergranular corrosion at lower temperatures.
Galvanized channel steel high temperature oxidation resistance: Galvanized channel steel has high temperature oxidation resistance, however, the oxidation rate will be affected by the exposure environment and product form and other inherent factors.
The physical function of galvanized channel steel: the total heat transfer coefficient of the metal depends on other factors in addition to the thermal conductivity of the metal. In most cases, the heat dissipation coefficient of the film layer, the rust and the appearance of the metal. Stainless steel can keep its appearance neat, so its heat transfer is better than other metals with higher thermal conductivity.
The galvanized channel steel is heated to 850 ~ 1250 ° C, and then the heat treatment is cooled at a cooling rate of more than 1 ° C /s. In this way, it can become a high-strength galvanized channel steel with a martensitic structure with a volume fraction of 12%, high strength, corrosion resistance and bending processing function above 730MPa, and excellent toughness in the welding heat affected zone. Using Mo, B, etc., can significantly improve the stamping processing function of the welding part.
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