Stainless steel welded pipe is a hollow steel pipe made of stainless steel sheet or steel strip, which is welded after curling. The manufacturing process includes a variety of welding methods such as argon arc welding and high frequency welding. It has excellent corrosion resistance, good processing performance and beautiful appearance. It is widely used in architectural decoration, furniture manufacturing, food machinery, auto parts, municipal engineering and other fields. It is a general-purpose pipe with excellent cost performance.

Zhongxi Metal is a professional manufacturer of seamless stainless steel pipes with a wide range of sizes and standards. Our pipes are made of high-quality stainless steel and have excellent corrosion resistance, thermal deformation performance, and high strength. Suitable for oil pipes, air conditioning pipes, water pipes, and automobile pipes, they are widely used in various industries such as chemistry, shipbuilding, water conservancy, food, and medicine. Contact us for more information and one-stop steel procurement services.

304 Stainless Steel Seamless Pipe is a high-performance tubular product manufactured through hot extrusion or cold drawing processes without any welding seams. Made from premium 304 stainless steel (18% Cr, 8% Ni), it offers excellent corrosion resistance, high strength (tensile strength ≥515MPa), and superior pressure-bearing capacity. With smooth inner/outer surfaces (Ra≤0.6μm) and precise dimensional tolerance (±0.1mm), it's widely used in chemical processing, food & pharmaceutical industries, heat exchangers, and high-pressure fluid systems. Its -196°C~800°C temperature range and ASTM/ASME compliance ensure reliability in demanding applications.

304L Stainless Steel Seamless Pipe is a low-carbon variant (0.03% max C) of 304, offering superior weldability and corrosion resistance. Manufactured through hot/cold forming processes, it maintains excellent mechanical properties (T.S.≥485MPa) while resisting intergranular corrosion. Ideal for chemical processing, LNG systems, and welded components requiring post-weld annealing. Complies with ASTM A312/A358 standards.

316 stainless steel seamless pipe is a premium corrosion-resistant tubular product manufactured through hot extrusion or cold drawing processes. With its 2-3% molybdenum content (16-18% Cr, 10-14% Ni), it delivers exceptional resistance to chlorides, acids, and marine environments, outperforming 304 grades. These pipes feature high tensile strength (≥515MPa), excellent surface finish (Ra≤0.6μm), and reliable performance across extreme temperatures (-196°C to 800°C). They're widely used in chemical processing, offshore platforms, pharmaceutical equipment, and high-purity applications where superior durability is required.

316L stainless steel seamless pipe is a low-carbon variant (0.03% max C) of 316 grade, offering superior weldability and enhanced resistance to intergranular corrosion. Manufactured through precision hot/cold forming processes, it maintains 2-3% molybdenum content (16-18% Cr, 10-14% Ni) for exceptional pitting and chloride resistance. With tensile strength ≥485MPa and polished surfaces (Ra≤0.6μm), it's ideal for chemical processing, marine environments, pharmaceutical systems, and welded applications requiring post-fabrication stability.

2205 stainless steel seamless pipe is a duplex-grade material combining austenitic and ferritic structures, delivering exceptional strength (T.S. ≥620MPa) and superior corrosion resistance. With 22% Cr, 5% Ni, and 3% Mo content, it offers twice the yield strength of 316L while maintaining outstanding resistance to chloride stress corrosion and pitting. Manufactured through controlled hot-working processes, these pipes are ideal for offshore oil/gasystems, chemical processing, and high-pressure applications in aggressive environments.

201 stainless steel seamless pipe is a cost-effective chromium-manganese-nickel alloy (16-18% Cr, 3.5-5.5% Ni, 5.5-7.5% Mn) offering moderate corrosion resistance and high strength (T.S. ≥515MPa). Manufactured through precision cold drawing, it provides better mechanical properties than welded alternatives while maintaining good formability. Suitable for decorative applications, low-corrosion environments, and structural components where 304-grade performance isn't required.

202 stainless steel seamless pipe is a chromium-nickel-manganese austenitic alloy (17-19% Cr, 4-6% Ni, 7.5-10% Mn) that balances cost and performance. Delivering higher corrosion resistance than 201 grade (but less than 304), it features tensile strength ≥515MPa and good oxidation resistance up to 850°C. Manufactured through cold-drawn processes, these precision pipes offer smooth surfaces (Ra≤0.8μm) and improved mechanical properties versus welded alternatives. Ideal for decorative architecture, kitchen equipment, and non-marine applications where moderate corrosion resistance suffices.

310S stainless steel seamless pipe is a high-temperature austenitic alloy (25% Cr, 20% Ni) with exceptional oxidation resistance up to 1100°C. Manufactured through precision hot extrusion, it maintains superior creep strength and thermal stability in extreme environments. With carbon content ≤0.08%, it resists carbide precipitation and scaling better than standard 310 grade. These pipes deliver tensile strength ≥515MPa and are widely used in furnace components, heat treatment equipment, and refinery pyrolysis systems.

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.