304 stainless steel pipe is the most widely used foundational grade among austenitic stainless steel pipes. Renowned as the “universal stainless steel pipe” due to its excellent corrosion resistance, mechanical properties, and workability coupled with high cost-effectiveness, it caters to diverse applications ranging from residential decoration and food/medical sectors to industrial piping systems. It stands as the “mainstream benchmark product” in the stainless steel pipe market.

316 stainless steel tubing is a widely used premium grade within the austenitic stainless steel family. Due to the addition of molybdenum (Mo), it offers significant improvements in corrosion resistance, high-temperature stability, and mechanical properties compared to the base 304 stainless steel tubing.

201 stainless steel pipe is the most common type of steel pipe across the globe for a number of its characteristics. 304 stainless steel is primarily composed of iron, chromium and nickel. This combination gives rise to outstanding oxidation resistance and corrosion resistance. 304 stainless steel is a versatile stainless steel material with better anti-rust properties than 200 series stainless steel materials. It also outperforms them in high temperature resistance. 304 stainless steel pipe features a smooth surface, high plasticity, toughness and mechanical strength, and is very resistant to corrosion by acids, alkaline gases, solutions and other media. 304 stainless steel pipes are widely used in food processing equipment, building materials, automobile parts and other fields for its versatility and relatively low cost.

321 Stainless Steel Pipe is the core grade of titanium-stabilized austenitic stainless steel tubing. By adding titanium (Ti) to the 304 stainless steel base, it resolves the “intergranular corrosion” issue common in standard austenitic stainless steels under high-temperature conditions. It simultaneously offers superior high-temperature strength, oxidation resistance, and machinability, making it a critical tubing material for high-temperature industrial applications such as boilers, heat exchangers, and aerospace piping.

Stainless steel rectangular tubes are mainly made of stainless steel, with common grades including SUS304 and SUS316L. These grades represent different chemical compositions and performance characteristics. For example, SUS304 stainless steel has good corrosion resistance, while SUS316L stainless steel has better resistance to chloride corrosion.

Stainless steel square pipe‌ is a hollow long steel product with a square cross-section. It is extruded from equilateral angle steel square prisms of equal thickness or made by hot rolling, cold rolling, etc.‌