Stainless steel round pipe 88.9x1.5 mm AISI 201 (600 GRIT) — is a high-quality thin-walled structural rolled metal of a large diameter, providing an excellent solution for projects where it is necessary to ensure minimal structural weight while maintaining a solid volume and a flawless appearance. The product has an exact outer diameter of 88.9 mm and a lightweight wall of 1.5 mm, forming an inner through diameter of 85.9 mm. Due to this geometry, the pipe allows for a significant reduction in metal consumption and overall weight load on supporting nodes, foundations, or suspended systems, while providing the high bending rigidity of a large round profile. 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, providing sufficient corrosion resistance in mild, non-aggressive operating environments. The products strictly comply with the 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 1.5 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 large diameter of 88.9 mm, lightweight 1.5 mm wall, optimal mechanical endurance of AISI 201 steel, and premium mirror polishing of 600 GRIT, this pipe is a rational engineering choice for the following directions:
Car Tuning and Exhaust Systems: design and construction of lightweight exhaust systems of large diameter, mufflers, and resonators, where it is critically important to reduce the total weight of the vehicle (especially in sports and racing tuning), while ensuring resistance to vibrations and moderate temperature effects.
Architectural Decor, Interior Fences, and Design: creation of spatial decorative structures, elements of entrance groups, light railings, handrails, and enclosures in dry rooms with controlled humidity — in office, residential, and shopping and entertainment centers, exhibition halls, and car dealerships.
Advertising Structures and Commercial Equipment: assembly of large but light suspended and floor-standing advertising stands, exhibition expositions, branded racks, as well as elements of modern commercial furniture, where a bright mirror chrome effect is required.
Technological Equipment and Ventilation: manufacture of light frame elements, casings, protective screens for machinery and mechanical engineering, assembly of non-pressure ventilation systems, smoke removal, and internal dry air ducts 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 and the thin-walled profile, 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, ventilation, or open systems.
• Operating Environment: AISI 201 steel grade is designed for long-term use in dry rooms or moderate (non-aggressive) environments. Due to its lower resistance to aggressive factors compared to AISI 304, 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 thin-walled pipe 88.9x1.5 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 high 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!