The production standard of SPA-H corten steel

Weathering steel plate for welding structure is made by adding metal materials such as chromium, molybdenum, titanium and vanadium to ordinary molten steel. The addition of these materials can form a protective film on the steel surface, which can resist weathering corrosion for a long time. The advantages of weathering steel plate for welding structure: It has very good welding performance and weather resistance, and is widely used in railways, bridges and other areas that need to be exposed to the atmosphere for a long time. Disadvantages of weathering steel plate for welded structure: It has very high requirements on the production process, and the poorer technology can not produce good weathering steel plate, SPA-H corten steel.

Quenching is a common heat treatment process. It is the metal heat treatment process in which the SPA-H corten steel 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 SPA-H corten steel strength and hardness, plasticity and toughness. Quenching is generally used as the final heat treatment.

Steel SPA-H corten steel exports fell sharply year on year. According to the data of the General Administration of customs, 7.811 million tons of steel were exported from January to February, a year-on-year decrease of 27.0%; 2.041 million tons of imported steel, a year-on-year increase of 2.1%. Steel prices continue to fall. According to the monitoring of China Iron and Steel Industry Association, China's steel SPA-H corten steel composite price index at the end of January was 105.48 points, down 0.58% month on month; at the end of February, the index continued to decline to 100.39 points, down 4.83% month on month.

Our company will accept the product quality objection registration record, pass it to the SPA-H corten steel production unit and relevant departments, and timely coordinate the supervision of product SPA-H corten steel quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.