The delamination problem of S460QL steel tubing

The company adheres to the service concept of "you give the order to me and I leave the satisfaction to you". Over the years, our S460QL steel tubing steel products are supplied in time, with reliable quality and perfect and thoughtful after-sales service. Meanwhile, we have huge S460QL steel tubing steel stocks all the year round. The company long-term pursues the principle of quality first, customer first, quality for survival, reputation for development, and perfect service to win the users.

The alloy wear-resistant layer of the wear-resistant steel plate is mainly made of chromium alloy, and other alloy components such as manganese, molybdenum, niobium, and nickel are also added. The carbide in the metallographic structure is fibrous, and the fiber direction is perpendicular to the surface; alloy carbide It has strong stability at high temperature, maintains high hardness, and also has very good anti-oxidation performance. S460QL steel tubing, wear-resistant steel plate can be used normally within 500 ℃.

Boiler steel mainly refers to materials used to make superheaters, main steam pipes and heating surfaces of boiler fire chambers. Boiler steel is a totally different material from S460QL steel tubing. The performance requirements for boiler steel are mainly good welding performance, certain high temperature strength, alkali corrosion resistance, and oxidation resistance. Commonly used boiler steels include open-hearth smelted low-carbon killed steel or electric furnace smelted low-carbon steel, with carbon content Wc in the range of 0.16%-0.26%. When manufacturing high-pressure boilers, pearlitic heat-resistant steel or austenitic heat-resistant steel is used. In recent years, ordinary low-alloy steel has also been used to build boilers.

Quenching is a common heat treatment process. It is the metal heat treatment process in which the S460QL steel tubing metal workpiece is heated to a proper temperature and kept for a period of time, then immersed in the quenching medium for rapid cooling. Quenching can improve the strength and hardness of steel in a large range, and adjust the coordination between S460QL steel tubing strength and hardness, plasticity and toughness. Quenching is generally used as the final heat treatment.

GB/T 1591-2008 Q460E material is a high strength low alloy steel plates. Q460E steel product size S460QL steel tubing: 3*1500*5900, 4*1500*6000, 48*3130*10100, 47*2610*8450, 3*1500*6000, 6*2000*8000, 48*2880*8550, 48*3130*10400, 5*1500*4150, 10*2000*8000, 48*2610*8700, 48*3170*10800, 5*1500*6000, 8*2000*2800, 47*2600*7000, 48*2880*3900, 16*2160*3300, 8*2000*8000, 47*2610*8700, 48*3150*10700, 5*1500*6000, 48*3130*10400 (mm).

The 365 day service system is implemented, and the business, loading and delivery are handled as usual in holidays and festivals. Actively help users solve difficulties. When users encounter difficulties in handling business, they should actively coordinate with the external solution; if they need to solve the problems internally, they should solve them in a timely manner without prevarication and wrangling. In line with the S460QL steel tubing principle of "fairness, justice and timeliness", coordinate with relevant departments and deal with all kinds of objections in a timely manner.