What is nm400 steel properties equivalent European standard

Chromium element (Cr element) can improve the strength and hardness of NM400 steel properties, carbon steel in rolling state, reduce elongation and area reduction. When the chromium content is more than 15%, the strength and hardness will decrease, while the elongation and reduction of area will increase correspondingly. It is easy to obtain high surface processing quality for steel parts containing chromium after grinding. The main function of chromium element (Cr element) in quenched and tempered steel structure is to improve hardenability, so that the steel has better comprehensive mechanical properties after quenching and tempering.

NM450 wear-resistant plate is a kind of wear-resistant steel plate with Brinell hardness of 450HB. It has excellent cold bending property and is mainly used in wear-resistant condition. NM400 steel properties, NM450 wear resistant plate has very good weldability, and it is a good choice for dump truck carriage, container, crusher, sieve plate, feeder, feeding funnel, elevator, blade, conveyor, bucket, cutter, gear, sprocket, etc. application.

Welded pipe, also known as welded steel pipe, refers to the steel pipe made of steel plate or strip steel after crimping and forming, with a fixed length of 6 meters. The production process of welded steel pipe is simple, the production efficiency is high, the varieties and specifications are diversified, and the equipment investment is less, but the general strength is lower than that of seamless steel pipe. NM400 steel properties, Welded pipes have many uses and are almost ubiquitous in our lives. However, when choosing welded pipes, we must pay attention to performance and material characteristics.

The global share of my country's steel production has increased substantially. In the first nine months of 2020, my country's crude steel output accounted for 58% of the world's total, pig iron accounted for 69%, and imported iron ore accounted for 71% of global iron ore exports. "Such a high proportion is a manifestation of the effective control of the epidemic situation in our country and the strong demand. As the situation of epidemic prevention and control in various countries gradually improves, the proportion of my country's output will gradually decline." Luo Tiejun said.