Zhishang Steel, specializing in domestic and foreign steel products trade, warehousing, processing and other services. The team has four service teams: Shandong Zhishang Steel Co., LTD., Shandong Zhiyiheng Trading Co., LTD., Tai 'an Zhishang Economic and Trade Co., LTD., Shandong Zhishang Steel Structure Co., LTD. Mainly engaged in steel coil, coated, steel pipe, profiles, stainless steel and other steels, including cold-rolled steel coil, hot-rolled steel plate, H-shaped steel, color-coated steel coil, galvanized pipe, channel steel, Angle steel, square rectangular pipe, welded pipe, seamless steel, spiral steel, C-shaped steel, color steel tile, round steel, rebar, etc., almost covers all kinds of steel required for production and construction of all walks of life. The company has established stable and reliable cooperative relations with Shandong Iron and Steel Group, Hebei Iron and Steel Group, Anshan Iron and Steel Group, Henan Anshan Iron and Steel Group and other large steel mills. Over the years, with excellent quality, good service, variety and other reputation has won the majority of customers.

Steel is an essential material for national construction and the realization of the four modernizations, and its wide application and variety, according to the different section shapes, steel is generally divided into four categories: profiles, plates, pipes and metal products, and is also divided into heavy rail, light rail, large steel, medium steel, small steel, steel cold-formed steel. High-quality steel, wire, medium thickness steel plate, thin steel plate, electrical silicon steel sheet, strip steel, seamless steel pipe steel, welded steel pipe, metal products and other varieties.

Steel including steel component quality testing There are many items, including tensile testing, bending fatigue testing, compression/bending testing, corrosion resistance testing. Materials and related products in the R & D and production process real-time grasp of product quality performance, can avoid quality returns, waste of raw materials and so on.

This kind of steel must ensure both chemical composition and mechanical properties. Its grade is a two-digit number representing the mass fraction of the average carbon in the steel (w) ×10000). For example, 45 steel indicates that the average mass fraction of carbon in steel is 0.45%; 08 steel indicates that the average mass fraction of carbon in steel is 0.08%, and high-quality carbon structural steel is mainly used to manufacture machine parts. It is generally heat treated to improve mechanical properties. Depending on the mass fraction of carbon, it has different uses. 08, 08F, 10, 10F steel, high plasticity, toughness, with excellent cold forming performance and welding performance, often cold rolled into sheet, used to make instrument shell, car and tractor cold stamping parts, such as car body, tractor cab, etc.; 15, 20, 25 steel is used to make carburized parts with small size, light load, wear-resistant surface requirements and low core strength requirements, such as piston pins, templates, etc. 30, 35, 40, 45, 50 steel after heat treatment (quenching + high temperature tempering) has good comprehensive mechanical properties, that is, has high strength and high plasticity, toughness, for the production of shaft parts, such as 40, 45 steel is often used in the manufacture of automobiles, tractors crankshaft, connecting rod, general machine tool spindle, machine tool gear and other shaft parts with little force; 55, 60, 65 steel has a high elastic limit after heat treatment (quenching + medium temperature tempering), and is often used to make springs with small load and small size (cross section size less than 12 ~ 15mm), such as pressure regulation and speed regulation springs, plunger springs, cold coil springs, etc.