Stainless steel round pipe 88.9x2 mm AISI 201 (600 GRIT) — is a high-quality structural rolled metal of a large caliber, providing an ideal balance of affordable cost, high mechanical strength, and flawless aesthetic characteristics. The product has an exact outer diameter of 88.9 mm and a wall thickness of 2 mm, providing an inner through diameter of 84.9 mm. Due to the two-millimeter wall, this round profile possesses excellent bending and torsional rigidity, resistance to vibrational and moderate impact loads. The profile is manufactured using advanced automatic TIG (Tungsten Inert Gas) welding technology in an inert gas environment, which guarantees 100% monolithicity of the seam, full tightness, and visual invisibility of the welded joint. The seam is located strictly inside the product, and the entire outer surface of the bar undergoes premium multi-stage processing with ultra-fine abrasives to achieve the highest roughness class of 600 GRIT. It acquires a flawless mirror shine (chrome effect) that perfectly reflects light, simplifies maintenance, prevents the retention of dirt and dust, and gives any metal structures a solid, modern, and premium look. The pipe is supplied in standard bars with a length of 6 m.
Material of Manufacture and Standards
This round profile is manufactured from high-quality alloyed chromium-manganese stainless steel grade AISI 201 (known domestic analogue is 12Х15Г9НД, European standard is EN 1.4372). Due to its optimized chemical composition, where a part of expensive nickel is replaced by manganese and nitrogen, this steel grade demonstrates excellent strength, remarkable ductility during forming, and stable welding properties, while remaining maximally cost-effective. AISI 201 serves as a non-magnetic, budget-saving alternative to 300-series steels under controlled humidity levels. The products strictly comply with the rigorous requirements of international engineering standards ASTM A-554 (USA) for structural pipes and EN 10296-2 (Europe), which guarantees flawless calibrated roundness, strict adherence to cross-sectional geometry, and wall thickness stability of 2 mm along the entire length of the product. The country of origin of the products is Vietnam.
Scope of Application and Purpose
Due to its solid diameter of 88.9 mm, optimal 2 mm wall, high mechanical endurance of AISI 201 steel, and premium mirror polishing of 600 GRIT, this pipe is an indispensable material for solving a wide range of technical and design tasks:
Car Tuning and Exhaust Systems: design and assembly of elements of highly loaded automotive exhaust systems, mufflers, resonators, and upgraded exhaust gas discharge lines of large diameter, where the metal's resistance to moderate temperature effects and dynamic vibrations of the vehicle is essential.
Interior Fences and Architectural Decor: construction of large-scale light-transparent enclosing structures, handrails, and railing elements in dry rooms with a high flow of people — in office, residential, and shopping and entertainment centers, exhibition halls, and car dealerships.
Commercial and Advertising Equipment: manufacture of durable frames for branded stands, large advertising structures, exhibition expositions, racks, and sturdy elements of modern commercial furniture.
Sports Equipment and Industry: assembly of power frames for professional sports training machines, elements of sports equipment, frame supports for light technological equipment, auxiliary lines in dry production workshops, as well as laying internal technical non-pressure pipelines and ventilation systems without high pressure.
Technical and Operational Limitations:
• Structural Purpose: the product belongs to the category of structural stainless steel rolled products (standard ASTM A-554). Due to the specific nature of the structural TIG weld seam type, this pipe is categorically forbidden to be used as a high-pressure main pipeline in pressure engineering and utility networks. It is designed exclusively for non-pressure, gravity, or open systems.
• Operating Environment: AISI 201 steel grade is designed for long-term use in dry rooms or moderate (non-aggressive) environments. The pipe is not recommended to be operated in environments with constant high humidity, outdoors under regular exposure to precipitation, as well as in highly aggressive chemical conditions.
• Temperature Range: the product demonstrates structural stability and moderate resistance to temperature drops within the specified range. The minimum operating temperature is -40°C, the maximum continuous operating temperature is +400°C (short-term peak heating without metal deformation is allowed up to +550°C).
Technical Recommendations for Mirror Surface Care
Recommended Cleaning Methods:
To preserve the flawless chromed shine of the 600 GRIT coating, mild soapy solutions or specialized disinfectants without free chlorine should be used. Cleaning is performed using a soft cloth (microfiber) or a soft foam sponge, which effectively remove dust, light dirt, and fingerprints.
Prohibited Care Products:
It is categorically forbidden to use cleaning agents based on chlorine, active acids, as well as any abrasive powders, stiff metal brushes, or scourers. Abrasives leave micro-scratches on the gloss, which irreversibly destroys the mirror effect and reduces the protective properties of the outer metal layer.
The products are delivered in perfect commercial condition (new). Each bar is supplied in a protective polymer film, which completely guarantees the preservation of the mirror surface against scuffs, scratches, and accidental damage during transportation, loading and unloading operations, and installation.
The Ukirs company is your reliable and proven supplier of quality stainless steel products in Ukraine. We offer to buy a stainless steel round pipe 88.9x2 mm grade AISI 201 at the most favorable and competitive price on the market, both wholesale and retail with a minimum order quantity starting from 3 meters. We guarantee the highest quality of rolled metal and full compliance with international TIG / ASTM A-554 standards. If necessary, for the convenience of transportation and cheaper logistics, professional cutting of the bar into smaller segments is performed according to your individual sizes. We will help you select the 88.9 mm stainless steel pipe that will perfectly meet all technical and operational needs of your project. We guarantee prompt delivery by verified transport services throughout Kyiv and the entire territory of Ukraine!