What is steel material JIS carbon steel SM520B CS plate equivalent grade

The correct choice of billet type, section shape, size and weight are of great significance to JIS carbon steel SM520B CS plate steel rolling production. Steel rolling production has certain technical requirements for raw materials, such as steel type, section shape, size, weight, and surface quality. The consideration of these technical requirements is necessary to ensure the quality of steel. It should also be specifically considered when determining and selecting the blank. The JIS carbon steel SM520B CS plate rolling method can be divided into cold rolling and hot rolling according to the rolling temperature.

The use of low carbon steel is limited due to its low strength. The strength of the carbon steel can be greatly improved by properly increasing the manganese content in the JIS carbon steel SM520B CS plate carbon steel and adding some alloy elements such as vanadium, titanium and niobium. If the carbon content in the carbon steel is reduced and a small amount of aluminum, boron and carbide forming elements are added, the ultra-low carbon bainite can be obtained, JIS carbon steel SM520B CS plate which has high strength and good plasticity and toughness.

The mechanical properties of hot rolled steel plate are far less than that of cold working and forging, but the JIS carbon steel SM520B CS plate, hot rolled steel plates have better toughness and ductility. Cold rolled steel plate has a certain degree of work hardening and toughness is low, but it can achieve a better yield ratio, and can be used for cold bending spring leaf and other parts. At the same time, because the yield point of cold rolled steel plate is close to the tensile strength, the danger is not foreseen in the use process, and accidents are prone to occur when the load exceeds the allowable load.

According to foreign media reports, despite the impact of the coronavirus epidemic, most German screw JIS carbon steel SM520B CS plate steel producers still maintain a good level of production. This is in sharp contrast to the situation in other European countries and Germany's domestic steel mills, which are suffering from a slowdown due to the spread of the epidemic. Lotter kummatt Stahl, a local distributor, told customers on its website: "there is no reason at present to believe that German steel mills such as Riva and ferralpi are no longer able to serve the JIS carbon steel SM520B CS plate market due to the impact of the closure of local steel mills in Italy.