202 stainless steel pipe is an austenitic stainless steel pipe in which manganese replaces some of the nickel. Compared with 304, it has a lower cost advantage while maintaining good mechanical properties and processing plasticity. It is widely used in interior decoration, billboards, bus shelters, door and window railings, solar panel brackets, and general industrial structural components.

316L stainless steel pipe (00Cr17Ni14Mo2) is a molybdenum-added ultra-low carbon austenitic stainless steel. It has excellent resistance to chloride ions and seawater corrosion, and there is no risk of intergranular corrosion after welding. It is widely used in offshore platforms, shipbuilding, LNG receiving stations, pharmaceutical equipment, bioreactors, fine chemical pipelines and high-grade water purification systems.

316 Stainless Steel Pipe
Features: 2-3% molybdenum (Mo) is added to 304 stainless steel, significantly improving its resistance to chloride ion corrosion (salt and seawater) and acid and alkali corrosion. It has higher strength, but is also more expensive.

304 Stainless Steel Pipe
Features: The most commonly used "food-grade" stainless steel (industry terminology: 18/8, containing 18% chromium and 8% nickel). Excellent overall corrosion resistance, processing performance, and weldability; good acid and heat resistance.

201 Stainless Steel Pipe
Features: High manganese content, low nickel content, inexpensive; decent strength, but poor corrosion resistance (especially acid resistance), prone to rusting over time or in humid environments.

Stainless steel pipe is a kind of hollow long circular steel, mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial transportation pipes and mechanical structural components.