Characteristics of galvanized channel steel
The oxidation resistance of galvanized channel steel is also good, galvanized channel steel has high temperature oxidation resistance, but the oxidation rate will be affected by inherent factors such as exposure environment and product form. 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 martensitic structure containing 12% of the volume fraction, high strength, corrosion resistance and bending performance above 730MPa, and excellent toughness in the welding heat affected zone. Using Mo, B, etc., can significantly improve the stamping machining performance of the welding part.
Whether the channel steel is used on the bridge
The straight beam head of the bridge guardrail formwork installation frame is supported on the bridge floor by a fixed bracket and a moving bracket, the outside of the moving bracket, the end of the straight pipe main beam is connected with the bridge with a puller with a tightener, the other end of the straight pipe main beam is provided with a guardrail formwork elevator and a hanging basket frame for placing the pedal, and the inside surface of the hanging basket frame is provided with a hook Angle to hook the bridge. So we can see the use of channel steel.
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