What is the service temperature of weather resistant Q355NH steel

As the thickness and hardness of weather resistant Q355NH steel increase, the tendency to crack at the cutting edge increases. In order to prevent the weather resistant Q355NH steel from cutting cracks, preheating should be carried out before weather resistant Q355NH steel cutting. Special attention should be paid to preheating to make the entire weather resistant Q355NH steel interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole weather resistant Q355NH steel cannot be preheated, the partial preheating method can be used instead.

weather resistant Q355NH steel, NM400 wear plate is a special structural steel with high wear resistance. Generally speaking, the higher the hardness, the higher the wear resistance. The average hardness of NM400 wear plate is 400HB. After quenching, or quenching and quenching, NM400 wear plate has a good martensite-bainite microstructure. The addition of molybdenum, nickel, and boron alloys ensures uniform texture throughout the thickness direction.

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Both parties shall confirm the weather resistant Q355NH steel material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the weather resistant Q355NH steel steel plant.

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