NM450 steel grade Sectors Face Challenges

NM450 steel grade, Wear resistant steel plate cutting: plasma cutting, carbon arc, grinding wheel saw can be used to cut large area of steel plate into the required shape. In order to reduce the cold crack of wear-resistant steel plate cutting, the wear-resistant steel plate should be preheated when cutting. The thicker the wear-resistant steel plate is, the higher the hardness is, and the higher the corresponding preheating temperature is. The preheating temperature should not exceed 200.

High-strength steel plates have the following characteristics. First, the strength is high, the bearing capacity is very good, and it is not easy to break. Second, compared with other steel plates under the same strength requirements, high-strength steel plates are lighter and thinner, which can effectively reduce the weight of structures. Third, the NM450 steel grade, high-strength steel plates are required to be safe and reliable, able to withstand complete disasters such as water, fire, earthquake, storm, etc., to protect people's safety.

According to different purposes, the thin steel sheets are rolled from billets of different materials. Commonly used materials include plain carbon steel, such as NM450 steel grade, high-quality carbon steel, alloy structural steel, carbon tool steel, stainless steel, spring steel, and silicon steel for electrical purposes. The thin steel sheets are mainly used in the automobile industry, aviation industry, enamel industry, electrical industry, machinery industry and other sectors. In addition to delivery directly after rolling, there are also pickled, galvanized and tinned thin steel sheets.

The main challenges facing the current low-carbon development of the steel industry are as follows: First, insufficient energy resource endowments, coal and coke account for nearly 90% of energy input. Second, the crude steel output is relatively large, accounting for more than half of the global output. Third, there are a large number of enterprises, with more than 500 enterprises with smelting capabilities, and their structure and level are quite different. Fourth, the carbon emission mechanism is complex, involving multiple carbon emission mechanisms such as energy combustion emissions, indirect emissions corresponding to electricity and heat consumption.