What does steel grade cutting of nm400 plate mean

The weldability of cutting of NM400 plate is good. It means that under certain process and construction conditions, cutting of NM400 plate can obtain good performance after welding. Weldability is a measure of the hot workability of steel. Weldability can be divided into weldability in construction and weldability in use. Weldability in construction refers to the sensitivity of cracking in weld metal and near seam zone, and hardening sensitivity of steel in near seam zone. Good weldability means that under certain welding process conditions, the weld metal and steel near the seam do not produce cracks. Weldability in use means that the mechanical properties of weld and HAZ steel are not lower than those of base metal.

BBN company team and culture: tt the end of 2019, in order to thank employees for their hard work and enrich their sparetime lives, the company organized a pleasant trip to Phuket Island, Thailand. This tour lasted 6 days and 5 nights, and returned by plane on the evening of December 27. We took off in Zhengzhou at about 5o'clock in the afternoon on the 22th December. Let's seize the day and live it to the full, and greet the arrival of the year 2020 together.

As the thickness and hardness of cutting of NM400 plate increase, the tendency to crack at the cutting edge increases. In order to prevent the cutting of NM400 plate from cutting cracks, preheating should be carried out before cutting of NM400 plate cutting. Special attention should be paid to preheating to make the entire cutting of NM400 plate interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole cutting of NM400 plate cannot be preheated, the partial preheating method can be used instead.

Hardfacing wear-resistant steel plate is a kind of wear-resistant steel plate with double-layer structure. In order to make it into wear-resistant parts better, it is necessary to weld and assemble the wear-resistant steel plate, cutting of NM400 plate. In order to ensure the original comprehensive performance of hardfacing steel plate, the base layer, transition layer and clad layer should be welded respectively. During the welding of hardfacing wear-resistant steel plate, the welding shall be carried out in strict accordance with the drawing, welding process and relevant standards.