Cutting service of SM520B carbon steel plate sheet

S420M and S420ML are hot-rolled flat weldable fine-grained structural steel with a thickness less than 120mm. SM520B carbon steel plate sheet, S420 steel is a non-alloy structural steel. The S420ML steel is composed of the following parts: S (structural steel); 420: the yield strength value of structural steel with a thickness less than 16mm: not less than 420; M represents his delivery status, that is, hot mechanical rolling; L: The impact when the temperature is not lower than -50 degrees is marked with a capital letter L.

The company's main business: ship plate, SM520B carbon steel plate sheet low alloy plate, automobile steel, high-strength plate, pipeline steel, boiler steel plate, weathering plate, wear-resistant plate, bridge plate, pressure vessel plate, steel plate, steel processing, etc. The company takes the implementation of high-end, SM520B carbon steel plate sheet high-quality, deep processing, strengthening the main business, diversified operation, group operation, enterprise transformation and upgrading as its development strategy, and makes all efforts to be your professional SM520B carbon steel plate sheet steel supplier and partner.

As the thickness and hardness of SM520B carbon steel plate sheet increase, the tendency to crack at the cutting edge increases. In order to prevent the SM520B carbon steel plate sheet from cutting cracks, preheating should be carried out before SM520B carbon steel plate sheet cutting. Special attention should be paid to preheating to make the entire SM520B carbon steel plate sheet interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole SM520B carbon steel plate sheet cannot be preheated, the partial preheating method can be used instead.

The yield rate is a comprehensive technical and economic index in the production of medium and heavy plates such as SM520B carbon steel plate sheet. Increasing the yield rate can not only reduce the loss of metal, but it is also vital to the economic benefits of the steel enterprise. The influencing factors of the yield of medium and heavy plates are various, for example, the variety structure, negative deviation rolling level, plate shape control level, cutting loss, rolling waste and burning loss, etc.

The company is deeply supported and loved by customers with its unique business philosophy and business model. The company has always been adhering to the "credibility first, integrity-based, quality first" purpose, and sincerely serve new and old customers. Over the past twenty years, the company has won the trust of customers by relying on good service and good reputation. Our aftersales team’s main responsibility is to deal with quality feedback and complaints from Customer.