Stainless steel round pipe 70 mm (600 GRIT) — is a high-demand, heavy-duty, and aesthetic element of structural metal products with a hollow round cross-section. The product has a fixed outer diameter of 70 mm, while its wall thickness and inner through diameter vary depending on the specific modification and engineering tasks. This geometric configuration provides excellent bending stiffness, high structural strength, and the ability to withstand significant mechanical, vibrational, and impact loads while maintaining the optimal specific weight of the structure. The profile is manufactured using automatic TIG (Tungsten Inert Gas) welding technology in an inert gas environment, which guarantees 100% monolithicity and absolute density of the welded joint. The seam is located inside the product, and the 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 does not fade over time, prevents the retention of dirt or bacteria, and is as simple to maintain as possible. The pipe is supplied in standard bars with a length of 6 m.
Material of Manufacture and Standards
This line of round rolled products with a diameter of 70 mm is a universal engineering solution. The surface finish can be brushed, mirror (polished), or matte. Most often, the pipe is supplied with the following wall thicknesses: 1.5 mm (70x1.5 mm), 2 mm (70x2 mm), 3 mm (70x3 mm). Steel grade options from which the pipe is most frequently manufactured include: AISI 201, AISI 304, AISI 316, AISI 321. Such a wide assortment of thicknesses and alloys allows for selecting the optimal balance of strength, weight, and anti-corrosion properties for any engineering tasks. The metal possesses high ductility, impact toughness, and is perfectly weldable by various methods. Production of the rolled products is strictly regulated by leading international engineering standards 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 of this series is Vietnam.
Scope of Application and Purpose
Due to its rational price, large caliber of 70 mm, and premium mirror polishing of 600 GRIT, this stainless steel pipe is a priority choice for a wide range of industrial, construction, infrastructure, and decorative projects where structural rigidity of the frame is required in combination with a flawless appearance.
Advertising and Architectural Metal Structures: the outer diameter of 70 mm is ideal for manufacturing reliable and wind-resistant flagpoles, flag holders, masts, outdoor brackets, decorative banner stands, as well as main elements of fences, railings, and handrails.
Auto Tuning and Heavy Structural Body Kits: the mirror profile is in high demand for the production of protective body kit elements for SUVs, minivans, crossovers, and pickup trucks (bull bars, side steps, protective bars, and front bumper guards), ensuring exceptional aesthetics and vehicle protection.
Urban Environment and Security: manufacturing of durable anti-vandal outdoor road bumpers, sidewalk and anti-parking bollards, parking restrictors, removable parking barriers, and urban traffic separation systems of increased strength.
Recommended Environment: office and shopping centers, furniture manufacturing, exhibition halls, indoor production workshops, and food blocks (for auxiliary and technological structures), and the transport sector. When selecting an appropriate corrosion-resistant steel grade, the pipe is ideal for outdoor operation in moderate or marine climate conditions.
Technical and Operational Limitations:
• Structural Purpose: the product belongs to the category of structural stainless steel 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 networks.
• Chemical and Moisture Mode: the selection of a specific steel grade must strictly correspond to the chemical aggressiveness of the environment. It is not recommended to use basic structural grades in highly aggressive acidic, alkaline, or saline zones.
• Thermal Loads: the profile demonstrates high resistance to thermal drops. Exact operational limits depend on the chosen steel grade (for structural stainless steel, the maximum continuous heating is up to +400°C, while for highly alloyed or heat-resistant grades, the thermal limit is significantly higher).
Technical Recommendations for Mirror Surface Care
Recommended Cleaning Methods:
To preserve the original chromed shine of the 600 GRIT coating, mild soapy solutions or specialized disinfectants without free chlorine should be used. Cleaning is performed exclusively with a soft cloth (microfiber) or a soft foam sponge, which effectively remove dust, dirt, and fingerprints.
Prohibited Care Products:
It is categorically forbidden to use cleaning agents based on chlorine, active mineral 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 can trigger pitting corrosion.
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 logistics, loading and unloading operations, and installation.
The Ukirs company is your reliable and proven supplier of quality stainless steel products. We offer to buy stainless steel round pipe with a diameter of 70 mm at the most favorable and competitive price on the market, both wholesale and retail with a minimum order quantity starting from 3 meters. In our assortment, the best options of stainless steel are available with various wall thicknesses and a wide selection of steel grades for any engineering goals and budget possibilities. If necessary, for the convenience of transportation and cheaper logistics, professional cutting of the bar into smaller segments is performed. We guarantee full compliance of the products with international TIG / ASTM A-554 standards and ensure prompt delivery by verified transport services throughout Kyiv and the entire territory of Ukraine.