321 stainless steel seamless pipe is a titanium-stabilized (Ti≥5xC%) chromium-nickel austenitic alloy (17-19% Cr, 9-12% Ni) designed to resist intergranular corrosion. Manufactured through controlled hot-working processes, it maintains excellent mechanical properties (T.S. ≥520MPa) and oxidation resistance up to 900°C. The titanium addition prevents chromium carbide precipitation during welding, making it ideal for high-temperature welded assemblies like heat exchangers, aircraft exhaust systems, and chemical processing equipment.

430 stainless steel seamless pipe is a ferritic chromium alloy (16-18% Cr) offering moderate corrosion resistance and excellent stress corrosion cracking resistance. Manufactured through specialized hot extrusion processes, it provides higher purity and better mechanical properties (T.S. ≥450MPa) than welded alternatives. While lacking nickel content, its low-cost formulation features good oxidation resistance up to 850°C and magnetic properties. Primarily used in automotive trim, appliance components, and architectural applications where welding isn't required. Complies with ASTM A268 standards, serving as an economical stainless solution for mildly corrosive environments and structural applications not demanding austenitic-grade performance.

201 stainless steel coil is an economical austenitic stainless steel coil with high manganese content and low nickel content, and its cost is lower than 304 stainless steel. It has high surface finish, but weak salt spray corrosion resistance and oxidation resistance. It is suitable for dry environments or low-corrosion scenarios, such as building decoration, daily products, home appliance housings and general industrial accessories. It is a common choice for cost-effective applications.

202 stainless steel coil is an austenitic stainless steel coil containing manganese and nitrogen. Its nickel content is lower than that of 304 stainless steel, and its cost is more advantageous. This material has moderate corrosion resistance and is stable in general atmosphere and weakly corrosive environments. It is suitable for building decoration, tableware and kitchen utensils, home appliance parts and general industrial pipelines. It is a choice that takes both cost-effectiveness and practicality into consideration.

304 stainless steel coil is a widely used austenitic stainless steel coil, the main components of chromium and nickel, with good corrosion resistance, heat resistance and mechanical properties. It has a high surface finish and is easy to process and shape. It is suitable for food processing equipment, medical equipment, architectural decoration and chemical containers. It is a high-quality and durable material choice.

304L stainless steel coil is a low-carbon version of 304 stainless steel. The reduced carbon content makes it less likely to cause intergranular corrosion during welding, improving welding performance and corrosion resistance stability. This material maintains the excellent mechanical properties and processability of 304 stainless steel, and is suitable for chemical equipment, pressure vessels, food processing, low-temperature structural parts and other scenes with high requirements for welding quality. It is a safe and reliable industrial-grade material.

321 stainless steel coil is an austenitic stainless steel coil with titanium added, which has excellent anti-oxidation and anti-creep properties in high temperature environment. Its titanium element can effectively stabilize carbides, prevent intergranular corrosion, and improve welding performance. This material is widely used in aviation, chemical, petroleum and other fields, suitable for manufacturing high-temperature components and welded structural parts, and is a reliable choice in high temperature environment.

316 stainless steel coil is an austenitic stainless steel coil with molybdenum added, which has excellent corrosion resistance, especially in chloride environment. It has good strength and toughness, is easy to process and form, and is suitable for marine engineering, chemical equipment, medical equipment and food processing. It is a high-quality material choice in scenarios requiring high corrosion resistance.

316L stainless steel coil is a low-carbon version of 316 stainless steel. It improves the resistance to intergranular corrosion by reducing the carbon content, especially in welding or high temperature environments. The added molybdenum element significantly enhances the chloride corrosion resistance, and is suitable for harsh environments such as marine engineering, chemical pipelines, medical equipment and food equipment. It is a high-end material choice that takes into account both corrosion resistance and welding reliability.

410 stainless steel coil is a martensitic stainless steel coil with good machinability and certain corrosion resistance. It can obtain higher strength and hardness after heat treatment, and is suitable for manufacturing knives, cutting tools, valves and mechanical parts that require wear resistance and impact resistance. In addition, 410 stainless steel coil has a relatively low cost and is a cost-effective industrial material choice.

430 stainless steel coil is a ferritic stainless steel coil with good corrosion resistance, especially in oxidizing acid environment. It is relatively cheap, has a small thermal expansion coefficient and good thermal stability, and is suitable for manufacturing home appliance housings, kitchen utensils, architectural decorations and automotive exhaust system components. However, its strength and toughness are slightly lower than austenitic stainless steel, and it is suitable for scenes where strength requirements are not stringent.

439 stainless steel coil is a ferritic stainless steel coil with excellent corrosion resistance, especially suitable for environments sensitive to chloride stress corrosion cracking. This material has excellent formability and weldability, low thermal expansion coefficient and good thermal conductivity. It is suitable for automotive exhaust systems, water heater tanks and architectural decoration. It is an economical material choice that takes into account both performance and cost.