What is the size list of nm450 sheet raw material

When cutting extra thick size list of NM450 sheet steel plates, the cutting speed should not be too fast. Many processing and production industries will encounter such problems, that is, in order to speed up the cutting of extra thick steel plates, many details will be ignored in the process of these process operations, so it is easy to produce waste parts, and some plates size list of NM450 sheet will crack. So when cutting extra thick steel plates, you must pay attention to the speed, which can not be too fast. Low-speed processing can effectively improve work efficiency.

size list of NM450 sheet, Wear resistant steel plate has good wear resistance:The chemical composition of the alloy wear-resistant layer is 4-5% carbon and 25-30% chromium. The volume fraction of Cr7C3 carbide in the metallographic structure is more than 50%. The macro hardness is HRC56-62 and the hardness of chromium carbide is HV1400-1800. Because the carbides are distributed perpendicularly in the direction of wear, even when compared with cast alloys of the same composition and hardness, the wear resistance is more than doubled.

After the steel plate is produced from the original factory, it will pass through a series of transportation and storage links and then be delivered to the processing workshop. During this period of time, the steel plate surface will contact with the air continuously, which will inevitably produce a layer of oxide skin. The oxide skin is a difficulty in the treatment process. It has high melting point, is not easy to burn and dissolve, increases preheating time, reduces cutting speed. Therefore, the surface of the size list of NM450 sheet plate should be derusted before cutting.

On the morning of March 10th, according to the news conference of the Joint Prevention and Control Mechanism of the State Council, Deputy Director of the Emergency Management Department Shang Yong said that since the outbreak, 20,000 and 172,000 safety guidance groups have been organized nationwide, keeping a close eye on High-risk industries such as coal mines and non-coal mines inspected and guided 223,000 enterprises and rectified 168,000 hidden problems.