Stainless steel round pipe 129x2.0 mm AISI 201 (600 GRIT) — is a high-strength, reinforced, and aesthetically flawless element of structural metalwork with a hollow round cross-section. The product has a precise outer diameter of 129 mm and a wall thickness of 2.0 mm, which provides an inner passage diameter of 125 mm. Due to this geometric configuration, the profile has increased structural bending rigidity, excellently withstands static and dynamic mechanical loads, and significantly expands operational capabilities when assembling large-caliber capital frames. The profile is manufactured using automatic TIG (Tungsten Inert Gas) welding technology in an inert gas environment, ensuring 100% monolithicity and absolute tightness of the welded joint. The seam is located inside the product, while the entire outer surface of the bar undergoes premium multi-stage processing with ultra-fine abrasives to reach the highest 600 GRIT roughness class. It acquires an ideal mirror shine (chrome effect) that does not tarnish over time, prevents the accumulation of dirt or bacteria, and is extremely easy to maintain. The pipe is supplied in standard 6-meter bars.
Material of Manufacture and Standards
This round profile is manufactured from high-quality structural stainless steel grade AISI 201 — an austenitic chromium-manganese-nickel steel, which is a cost-effective and economical alternative to grade AISI 304. This alloy features high ductility, strength, and is perfectly suitable for welding, cutting, and other types of mechanical processing by any known method. By substituting a portion of the nickel with manganese, AISI 201 steel provides a sufficient level of corrosion resistance in moderate conditions while offering significant budget savings. Production is strictly regulated by leading international engineering standards, such as ASTM A-554 (USA) for structural pipes and EN 10296-2 (Europe), which guarantees perfect geometric roundness and a stable wall thickness of 2.0 mm along the entire length of the bar. The country of origin for this series is Vietnam.
Scope of Application and Purpose
Thanks to its large 129 mm diameter, premium 600 GRIT mirror gloss, and rational cost, this stainless steel pipe is an optimal choice for large-scale architectural and industrial tasks where capital frame strength is required in indoor areas or zones with moderate humidity.
Large-scale structures: Building reliable load-bearing supports, columns, frames for exhibition pavilions, advertising pylons, as well as capital fencing elements, railings, and handrails in high-traffic areas (shopping and office centers).
Industry and technological equipment: Used as powerful structural elements for machinery, production lines, ventilation, and smoke extraction systems, where high presentability and ease of hygienic maintenance are required.
Recommended environment: Office, residential, and shopping complexes, exhibition halls, enclosed production workshops, food service facilities (for auxiliary structures), and the transport sector. Outdoor use is possible only in moderate climates without direct exposure to aggressive precipitation.
Technical and Operational Limitations:
• Structural Purpose: The product belongs to the category of structural stainless steel (standard ASTM A-554). Due to the specific nature of the TIG structural weld, this pipe is categorically forbidden for use as a high-pressure main pipeline in pressurized engineering networks.
• Humidity and chemical conditions: AISI 201 stainless steel has moderate corrosion resistance; therefore, it is not recommended for use in environments with constant high humidity, in highly aggressive chemical zones (concentrated acids, alkalis, salts), or on the coast without special protection.
• Temperature range: The profile demonstrates excellent stability under thermal loads. The maximum constant operating temperature is +400°C, peak short-term heating is permitted up to +550°C, and the minimum operating temperature is -40°C.
Technical Recommendations for Mirror Surface Care
Recommended cleaning methods:
To preserve the original chrome shine of the 600 GRIT finish, use mild soapy solutions or specialized chlorine-free disinfectants. Cleaning should be performed exclusively using a soft cloth (microfiber) or a soft foam sponge.
Prohibited care products:
It is categorically forbidden to use chlorine-based cleaners, active mineral acids, as well as any abrasive powders, stiff metal brushes, or scouring pads, which irreversibly destroy the mirror effect.
Products are released in flawless (new) condition. Each bar is supplied in a protective polymer film, which guarantees the preservation of the mirror surface from scuffs and accidental damage during logistics, loading/unloading, and installation.
The "Ukirs" company is your reliable supplier of high-quality stainless steel rolled products. We offer 129x2.0 mm AISI 201 round stainless steel pipes at the most favorable prices on the market, both wholesale and retail, with a minimum order quantity starting from 3 meters. We guarantee full compliance with TIG / ASTM A-554 standards and ensure fast delivery throughout Kyiv and all of Ukraine. Professional bar cutting is available upon request. Contact us!