Stainless steel coils are divided into austenite, ferrite, martensite, dual-phase (ferrite-austenite) stainless steel cold-rolled coils and stainless steel hot-rolled coils. In order to ensure that the mechanical properties such as yield strength, tensile strength, elongation and hardness of various coils meet the requirements, stainless coils must be subjected to heat treatment such as annealing, solution treatment, and aging treatment before delivery.
The corrosion resistance of stainless steel coil mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and the internal structure, and the main role is chromium. Chromium has high chemical stability and can form a passivation film on the steel surface to isolate the metal from the outside world, protect the steel plate from being oxidized, and increase the corrosion resistance of the steel plate. After the passivation film is destroyed, the corrosion resistance decreases.
Shanghai AIYIA Industrial Co., Ltd. is a professional metal raw material supplier, located in Shanghai, the economic center of China. We supply various steel and aluminum products, which are widely used in construction, industry, agriculture, food packaging and other fields. Our main products are galvanized steel coil, galvalume steel coil, PPGI, PPGL, cold rolled steel coil, stainless steel coil, tinplate, tin free steel, aluminum coil, roofing sheets, spring steel strip and various special steel sheets, our product shapes are coils, sheets, plates, rods, pipes, angle, etc.We rely on China’s excellent export ports to export products to all parts of the world. Our export ports include Shanghai, Qingdao, Ningbo, Tianjin, Qinhuangdao, etc. Since the establishment of AIYIA, our products have been exported to dozens of countries around the world, it exported to Europe, Africa, Southeast Asia, Middle East, Russia, America, Australia, etc. Our products strongly support local economic development. Our production equipment is advanced, our management is scientific and reasonable, we strictly inspect the quality, our products are reasonably priced, we have stable supply, fast delivery and responsible after-sales service,so our products are widely praised.We strictly abide by the principles of “integrity”, “quality”, and “win-win” to treat every customer friend.If you have purchasing requirements, welcome to China, welcome to AIYIA!
Why choose us?
Advanced Equipment: 180 ton converter, 2250 mm HSM, wide plate mill, the world’s top rolling mill, cold continuous rolling mill, 180 tons radial forging mill, 6000t hot extrusion units, 20-high rolling mill. Sales Service: Provide customers with customized services such as grade, length, width, thickness, and packaging. At the same time, it provides technical support in material selection and processing technology. Global Market: AIYIA is committed to establishing trade relations with customers all over the world. At present, we have exported stainless steel coils, stainless steel plates, stainless steel strips and other products to more than 50 countries and regions.
Specifications
Monthly Supply
3000-5000 tons
MOQ(Minimum order quantity)
5 tons
Delivery Time
Stock: 7 days Futures: 15-35 days
Packaging Method
Waterproof paper Fumigated wooden pallet Wooden box, etc
Port
Shanghai Ningbo Qingdao Qinhuangdao,etc
Export Market
Europe Central Asia Africa Southeast Asia Middle East South America North America, etc
Product Introduction
Stainless steel (inox) is an alloy steel with smooth surface, high weldability, corrosion resistance, polishability, heat resistance, corrosion resistance and other characteristics. It is widely used in various industries and is an important material in modern industry. Stainless steel is divided into austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, and duplex stainless steel according to the structure state. Austenitic Stainless Steel: stainless steel with an austenitic structure at room temperature. Steel contains Cr≈18%, Ni≈8%-25% and C≈0.1%. Steel has high toughness and plasticity, but low strength. Martensitic Stainless Steel: A steel whose mechanical properties can be adjusted by heat treatment. It has different strength and toughness at different tempering temperatures. Duplex stainless steel: Austenitic and ferrite each account for about half of the structure. When the C content is low, the Cr content is 18% to 28%, and the Ni content is 3% to 10%. Some steels also contain alloying elements such as Mo, Cu, Si, Nb, Ti, and N. This type of steel has the characteristics of austenitic and ferritic stainless steel Ferritic Stainless Steel: It contains 15% to 30% chromium and has a body-centered cubic crystal structure. This type of steel generally does not contain nickel, and sometimes contains a small amount of Mo, Ti, Nb and other elements. This type of steel has the characteristics of large thermal conductivity, small expansion coefficient, good oxidation resistance, and excellent stress corrosion resistance.