Stainless steel round pipe ∅ 129 mm (600 GRIT) — is a large-diameter, high-strength, and aesthetically pleasing element of structural metalwork with a hollow round cross-section. The product features a fixed outer diameter of 129 mm, while the wall thickness and inner passage diameter can vary depending on the chosen modification and the requirements of the engineering project. This massive geometric configuration provides exceptional bending rigidity, high structural strength, and the ability to withstand significant mechanical, vibrational, and impact loads while maintaining optimal weight ratios. The profile is manufactured using advanced automatic TIG (Tungsten Inert Gas) welding technology, which ensures 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 a flawless 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 line of 129 mm diameter round rolled metal is a versatile engineering solution. The pipe is manufactured from a wide range of stainless steel grades, such as AISI 201, AISI 304, AISI 316, AISI 430, and others. Depending on the metal type and intended use, the wall thickness varies from 1.0 mm to 5.0 mm. Such a wide range of thicknesses and alloys allows for an ideal balance of strength, weight, and corrosion resistance for any engineering task. The metal features high ductility, impact toughness, and is perfectly weldable by various methods. The production is strictly regulated by leading international engineering standards, including ASTM A-554 (USA) for structural pipes and EN 10296-2 (Europe), which guarantees perfect geometric roundness and wall stability 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 caliber and premium 600 GRIT gloss, this stainless steel pipe is a priority choice for large-scale projects requiring capital structural rigidity combined with a flawless appearance.
Large-scale architectural structures: The large outer diameter makes this profile ideal for manufacturing load-bearing supports, massive columns, entrance group frames, exhibition pavilions, and capital fencing elements in modern public spaces with high foot traffic.
Technological and industrial equipment: Used as powerful structural elements for machinery, production lines, ventilation, and smoke extraction systems, where resistance to aggressive environments and ease of hygienic maintenance are required.
Recommended environment: Office and shopping centers, food and pharmaceutical production (for auxiliary structures), and transportation hubs. When selecting the appropriate corrosion-resistant steel grade (e.g., AISI 304/316), the pipe is perfectly suited for outdoor use in moderate or marine climates.
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.
• Chemical and humidity conditions: The specific steel grade must be chosen to strictly match the chemical aggressiveness of the environment. Standard structural grades are not recommended for use in highly aggressive acidic or saline zones without special protection.
• Temperature range: The profile has high resistance to temperature fluctuations. Precise operating limits depend on the selected steel grade (standard structural stainless steel maintains stability up to +400°C).
Technical Recommendations for Mirror Surface Care
Recommended cleaning methods:
To preserve the original chrome-like shine of the 600 GRIT finish, use mild soapy solutions or specialized chlorine-free disinfectants. Clean exclusively with a soft cloth (microfiber) or a soft foam sponge.
Prohibited care products:
It is categorically forbidden to use chlorine-based cleaning agents, active mineral acids, as well as any abrasive powders, stiff metal brushes, or scouring pads, which irreversibly destroy the mirror effect.
Products are delivered in flawless (new) condition. Each bar is supplied in protective polymer film, which guarantees the preservation of the mirror surface from scuffs and accidental damage during logistics and installation.
The "Ukirs" company is your reliable supplier of high-quality stainless steel rolled products. We offer 129 mm diameter round stainless steel pipes at the most favorable prices for both wholesale and retail, with a minimum order quantity starting from 3 meters. Our assortment includes the best stainless steel options with various wall thicknesses (1-5 mm) and steel grades to suit any engineering goals and budget. Professional bar cutting is available upon request. We guarantee full compliance with TIG / ASTM A-554 standards and provide fast delivery via reliable transport services throughout Kyiv and all of Ukraine!