Stainless steel pipe is a hollow round steel material with excellent corrosion resistance, high strength and sanitation as its core advantages. It is widely used in the fields of petrochemical, medical food, architectural decoration, etc. Its material can withstand the erosion of various chemical substances, its surface is smooth and not easy to breed bacteria, it can adapt to high pressure, high temperature and harsh environment, and its service life can reach 70-100 years.

201 stainless steel pipe is an austenitic stainless steel product that uses manganese and nitrogen to replace part of nickel. It contains 16%-18% chromium and 3.5%-5.5% nickel, and has both cost advantages and good corrosion resistance. Its strength is higher than that of 304 steel pipe, and it has excellent processing performance. It can be welded, bent and polished, and has a high surface finish. It is widely used in interior decoration, furniture, building railings, medical equipment and daily necessities, and is especially suitable for neutral environments. Due to its outstanding cost-effectiveness, it has become an economical choice to replace 304 steel pipes, combining beauty and durability, and is deeply favored by the market.

304 stainless steel pipes are made of 18% chromium and 8% nickel as core components. They have excellent corrosion resistance and processing performance and are widely used in architectural decoration, food processing, chemical equipment and other fields. They have a smooth surface, are resistant to erosion by the atmosphere, water flow and weakly corrosive media, have excellent welding and forming performance, and are cost-effective, making them one of the preferred pipes in modern industrial and civil fields.

304L stainless steel pipe is a low-carbon version of 304 stainless steel, containing 18% chromium and 8% nickel, with lower carbon content and significantly improved resistance to intergranular corrosion. It has excellent corrosion resistance, weldability and formability, and is particularly suitable for welding in the fields of chemical, food, medical equipment, etc. It has more stable performance in high temperature or corrosive environment, and is a representative of high reliability pipes in modern industry.

316 stainless steel pipe adds molybdenum to 304, and its resistance to chloride ion corrosion is significantly improved, which is especially suitable for strong corrosive environments such as ocean and chemical industry. It has high strength, excellent weldability and formability, and excellent high temperature resistance. It is widely used in medical equipment, food processing equipment, chemical reactors and architectural decoration. It is one of the core pipes in high-end industry and people's livelihood fields.

316L stainless steel pipe is a low-carbon austenitic stainless steel containing molybdenum, containing 16%-18% chromium, 10%-14% nickel, 2%-3% molybdenum, and carbon content ≤0.03%. It has excellent resistance to pitting and crevice corrosion, can resist corrosion by salt water, chlorides and acid and alkali media, and does not require annealing for welding. It has high mechanical strength and is suitable for high-pressure environments. It is widely used in chemical equipment, marine engineering, medical equipment, food processing and architectural decoration. It performs well in pipeline systems with strict corrosion resistance requirements, and is one of the core pipes in high-end industrial and livelihood fields.

321 stainless steel pipe is Ni-Cr-Ti type austenitic stainless steel, containing 17%-19% chromium, 9%-12% nickel, and ≥5×C% titanium. The addition of titanium significantly improves the resistance to intergranular corrosion, especially in high temperature environments of 450°C-800°C. It has excellent high temperature resistance and oxidation resistance, tensile strength ≥520MPa, yield strength ≥205MPa, and good plasticity and weldability. It is widely used in petrochemicals (such as reactors, heat exchangers), electricity (boilers, steam turbines), aerospace (engine parts), construction (corrosion-resistant components), food processing (transportation pipelines) and medical (equipment) and other fields. It is an ideal material for high temperature, high pressure and strong corrosion environments.

410 stainless steel pipe is a representative of martensitic stainless steel, containing 12%-14% chromium and ≤0.15% carbon. It can achieve high strength (tensile strength ≥450MPa) and wear resistance through heat treatment. Its corrosion resistance is weaker than austenitic steel, but it is low in cost and has excellent machinability. It is suitable for tools, turbine blades, high-stress mechanical parts and pump and valve parts. It has poor weldability and requires preheating, but the surface hardness can be improved by carburizing or nitriding. It is a typical choice for economical wear-resistant pipes in the industrial field.

420 stainless steel pipe is a martensitic stainless steel, containing 12%-14% chromium and 0.15%-0.45% carbon. After heat treatment (quenching + tempering), it can obtain high hardness and wear resistance above HRC50, and tensile strength ≥635MPa. It is suitable for cutting tools, bearings, valves and high-stress mechanical parts. Preheating treatment is required for welding, and the surface hardness can be improved by carburizing. It is a typical choice for economical wear-resistant and high-strength pipes in the industrial field.

430 stainless steel pipe is a representative of ferritic stainless steel, containing 16%-18% chromium, ≤0.12% carbon content, magnetic and low cost. It has good resistance to atmosphere, water vapor and weak corrosive media, but weak resistance to chloride corrosion. Tensile strength ≥450MPa, hardness ≤HRB88, excellent processing performance, easy stamping, general weldability, no need for heat treatment strengthening. It is widely used in automobile exhaust pipes, home appliance housings, architectural decoration and tableware manufacturing. It is a typical choice of economical corrosion-resistant pipes, especially suitable for interior decoration in non-strong acid and alkali environments.

2205 stainless steel pipe is a duplex stainless steel (austenite + ferrite), containing 22% chromium, 5% nickel, 3% molybdenum and nitrogen. It has high strength (tensile strength ≥ 620MPa) and excellent corrosion resistance, especially resistance to chloride ion pitting, crevice corrosion and stress corrosion cracking. Its mechanical properties far exceed those of ordinary austenitic steel, and it has good weldability. It is suitable for marine engineering, chemical equipment, oil and gas pipelines and high salt spray environments. It is a model pipe with a balance between corrosion resistance and economy.

2507 stainless steel pipe is a super duplex stainless steel (austenite + ferrite), containing 25% chromium, 7% nickel, 4% molybdenum and nitrogen, with super corrosion resistance and high strength (tensile strength ≥ 800MPa). Its pitting resistance equivalent (PREN) is greater than 40, which can resist corrosion from seawater, chlorides, acidic media, high temperature and high pressure, and has excellent welding performance. It is widely used in offshore platforms, chemical heat exchangers, oil and gas transportation and seawater desalination equipment, and is a benchmark for high-reliability pipes in extreme corrosive environments.