Stainless Steel Square Tube – Corrosion-resistant square tube for structure and decoration.
304 & 316 Grades Available – Suitable for indoor, outdoor, marine and industrial use.
Custom Size Supply – Side length, wall thickness, length and surface finish customizable.
Polished Surface Options – 2B, mirror, brushed, satin and customized finishes available.
Export Ready Service – MTC, inspection support, bundle packing, FOB, CIF and CFR available.
Stainless steel square tube is a hollow stainless steel tube with a square cross section. It combines structural strength, corrosion resistance and a clean modern appearance, making it suitable for both engineering use and decorative applications.
Compared with carbon steel square tube, stainless steel square tube offers better resistance to rust, moisture, oxidation and many corrosive environments. It can be welded, cut, polished, brushed, drilled and fabricated into different finished products according to project requirements.
Henan GDD supplies stainless steel square tubes in multiple grades, sizes, wall thicknesses and surface finishes. We support construction companies, decoration contractors, handrail manufacturers, machinery factories, food equipment producers, chemical equipment suppliers and global steel distributors.
| Item | Specification |
|---|---|
| Product Name | Stainless Steel Square Tube / Stainless Steel Square Pipe |
| Shape | Square Hollow Section |
| Material Grade | 201, 202, 304, 304L, 316, 316L, 321, 310S, 409, 410, 430 or Customized |
| Standard | ASTM, AISI, JIS, EN, GB or Customized |
| Production Type | Welded Tube / Seamless Tube if required |
| Side Length | 10×10 mm – 300×300 mm or Customized |
| Wall Thickness | 0.5 mm – 12 mm or Customized |
| Length | 5.8m, 6m, 11.8m, 12m or Customized |
| Surface Finish | 2B, BA, No.1, No.4, HL, Mirror, Brushed, Satin, Polished or Customized |
| Pipe End | Plain End, Beveled End, Capped End or Customized |
| Processing Service | Cutting, Polishing, Brushing, Drilling, Welding, Bending, Punching |
| Inspection | MTC, Dimension Inspection, Surface Inspection, Third-party Inspection |
| Application | Construction, Decoration, Handrail, Railing, Frame, Furniture, Machinery, Equipment |
| Packing | Bundle Packing, Plastic Film, Wooden Case, Waterproof Export Packing |
| Trade Terms | FOB, CFR, CIF, EXW |
Stainless steel square tube is a square hollow tube made from stainless steel material. It is usually produced by forming stainless steel strip or coil into a square tube shape and welding the seam. Seamless stainless steel square tube can also be supplied for special requirements.
The square shape provides flat surfaces for welding, connection and installation. This makes it easy to fabricate into frames, railings, supports, decorative structures and equipment parts.
Stainless steel square tube is especially popular in applications that require both mechanical performance and surface appearance. It is widely used in buildings, interior decoration, outdoor railings, furniture, machinery and industrial equipment.
304 stainless steel square tube is the most commonly used grade. It offers good corrosion resistance, weldability and processing performance. It is widely used for handrails, railings, frames, decoration, furniture, food equipment and general industrial use.
316 stainless steel square tube contains molybdenum, giving it better resistance to chloride corrosion and harsh environments. It is suitable for coastal projects, marine equipment, chemical equipment, outdoor structures and applications requiring stronger corrosion protection.
201 stainless steel square tube is an economical stainless steel option with good strength and decorative performance. It is mainly used for indoor decoration, furniture, light structures, display frames and general applications where extreme corrosion resistance is not required.
Polished stainless steel square tube has a smooth and attractive surface. Mirror finish, brushed finish, satin finish and hairline finish can be supplied for decorative projects, architectural use, handrails and visible metal structures.
Structural stainless steel square tube is used for support frames, equipment structures, machinery frames, platforms, brackets and load-bearing applications where corrosion resistance and strength are required.
Stainless steel square tube is widely used in construction and decoration projects. It can be used for handrails, guardrails, stair railings, balcony railings, door frames, window frames, curtain wall supports, decorative frames and architectural structures.
In industrial manufacturing, stainless steel square tube is used for machinery frames, equipment supports, food processing equipment, chemical equipment, clean room structures, conveyor systems and production line frames.
For furniture and commercial products, it can be processed into tables, chairs, display racks, shelves, shop fittings, kitchen equipment, storage systems and decorative metal products.
For outdoor and coastal applications, 304 or 316 stainless steel square tube is usually selected according to corrosion resistance requirements.
Stainless steel square tube provides better resistance to rust and oxidation than ordinary carbon steel tube, making it suitable for humid, outdoor, decorative and industrial environments.
With polished, brushed, satin or mirror surface finishes, stainless steel square tube provides a clean and attractive appearance for architectural and decorative projects.
The square hollow section provides stable support and good rigidity for frames, railings, machinery structures and fabricated components.
The flat surfaces make stainless steel square tube easy to weld, cut, drill, polish, bend and assemble into different structures.
201, 304, 316, 316L, 321, 430 and other stainless steel grades can be selected according to budget, corrosion resistance and application environment.
With proper material grade and surface finish, stainless steel square tube can provide durable performance and reduce maintenance requirements.
304 stainless steel square tube is suitable for general construction, indoor and outdoor decoration, furniture, handrails, food equipment and common industrial applications. It offers a good balance between corrosion resistance, processing performance and cost.
316 stainless steel square tube provides stronger corrosion resistance, especially in marine, coastal and chloride-containing environments. It is more suitable for seaside projects, chemical equipment, marine hardware and harsh outdoor conditions.
For general architectural and indoor use, 304 is usually enough. For coastal, chemical or more corrosive environments, 316 or 316L is recommended.
Carbon steel square tube is more economical and suitable for general structural use, but it normally requires painting, galvanizing or anti-rust treatment for long-term corrosion protection.
Stainless steel square tube has better corrosion resistance and a cleaner appearance. It is more suitable for visible structures, decorative projects, food equipment, chemical equipment and applications where maintenance reduction is important.
The best choice depends on application environment, appearance requirement, budget and service life expectation.
Henan GDD can supply stainless steel square tubes with multiple surface finishes, including 2B, BA, No.1, No.4, hairline, brushed, satin, polished and mirror finish. Surface protection film can also be applied for decorative tubes.
Processing services can include cutting to length, polishing, brushing, drilling, punching, welding, bending and customized fabrication. For project orders, size, tolerance, surface finish, end condition and packing method can be arranged according to drawings or customer requirements.
Henan GDD is a reliable steel material supplier with experience in stainless steel tube supply, processing, inspection, packing and export service. We provide stainless steel square tube solutions for construction companies, decoration contractors, railing manufacturers, furniture factories, machinery producers, equipment manufacturers and global steel distributors.
We support multiple stainless steel grades, custom sizes, flexible surface finishes, cutting service, polishing service, inspection documents and international shipment. From quotation to production, inspection, packing and loading, our team can provide one-stop export support for your stainless steel square tube orders.
Before shipment, Henan GDD can arrange inspection according to customer requirements. Inspection items may include side length, wall thickness, tube length, surface finish, weld seam condition, straightness, end condition, bundle quantity and total weight.
For project or decorative orders, surface scratches, polishing quality, film protection, dimensional tolerance and packing protection can also be checked according to customer requirements. MTC, quality documents, inspection photos, packing photos, loading photos and third-party inspection can be provided with shipment.
Stainless steel square tubes are usually packed in bundles with plastic film, waterproof wrapping, steel strips, woven bags or wooden cases according to surface finish and customer requirements.
For polished or mirror surface tubes, protective film and careful packing can be arranged to reduce scratches during transportation. Standard lengths such as 5.8m, 6m, 11.8m and 12m can be supplied according to container loading requirements.
Shipment can be arranged by container, bulk shipment or customized logistics method depending on product length, quantity and destination port.
Stainless steel square tube is used for construction, decoration, handrails, railings, frames, furniture, machinery, food equipment, chemical equipment and industrial fabrication.
Common grades include 201, 304, 304L, 316, 316L, 321, 310S and 430. Other grades can be supplied according to customer requirements.
304 is suitable for general corrosion-resistant applications. 316 provides better corrosion resistance in marine, coastal and chemical environments.
Yes. 2B, BA, No.4, hairline, brushed, satin, polished and mirror finishes can be supplied according to project requirements.
Yes. Cutting, polishing, brushing, drilling, punching, welding and other processing services can be arranged according to customer requirements.
Please provide grade, side length, wall thickness, length, surface finish, quantity, packing requirement, destination port and trade terms.
Yes. MTC, quality documents, inspection photos, packing photos, loading photos and third-party inspection can be provided according to order requirements.
Looking for stainless steel square tubes for construction, decoration, handrails or industrial fabrication?
Send us your required grade, size, wall thickness, surface finish, quantity and destination port. Henan GDD will provide a professional quotation and suitable shipping solution.
