304 Stainless Steel Square Tubing 40x40mm 60x60mm 80x80mm Custom Cut

304 stainless steel square tubes are versatile, corrosion-resistant components widely used across industries. As an austenitic stainless steel, 304 offers an ideal blend of formability, strength, and resistance to rust, making it the most popular choice for general-purpose applications where durability meets cost-effectiveness.

304 stainless steel square tubes are hollow, square-sectioned pipes made from 304 alloy--a chromium-nickel austenitic steel. Their square shape provides structural rigidity, making them suitable for both load-bearing and decorative roles. Unlike carbon steel, 304 resists oxidation and corrosion in most environments, thanks to its high chromium content (18-20%), which forms a protective oxide layer on the surface. This grade is non-magnetic in its annealed state and can be easily welded, bent, or fabricated into complex shapes.

The chemical makeup of 304 stainless steel defines its key properties, with strict ranges outlined in industry standards:

304 stainless steel square tubes balance strength and flexibility, making them adaptable to diverse applications:

304 square tubes are available in a wide range of sizes to fit specific needs:

• Side Length: 6mm to 300mm (common sizes: 10×10mm, 40×40mm, 100×100mm)
• Wall Thickness: 0.5mm to 10mm (thicker walls for structural or high-pressure use)
• Length: Standard 6m; customizable up to 12m for large projects
• Finish Options:
  • Mill finish (2B): Smooth, matte surface for industrial use
  • Polished (BA/mirror): Shiny, reflective surface for decorative applications
  • Brushed: Satin texture, popular in architectural trim

304 square tubes adhere to global standards to ensure consistency and quality:

304 square tubes are favored in environments where general corrosion resistance is required:

• Architecture & Construction: Handrails, balustrades, window frames, and decorative facades (resists weathering)
• Food & Beverage Industry: Conveyors, brewing equipment, and storage tanks (easy to clean, non-toxic)
• Medical Equipment: Hospital bed frames, surgical instrument trays (hygienic and rust-proof)
• Automotive: Exhaust components, trim, and structural parts (resists road salts moderately)
• Household Appliances: Refrigerator shelves, oven doors, and dishwasher parts (withstands moisture)
• Water Treatment: Piping, filter housings, and pump components (resists clean water corrosion)

• Excellent Corrosion Resistance: Performs well in most atmospheric conditions, fresh water, and mild chemicals
• High Formability: Easily welded, bent, or cut, making it suitable for custom fabrication
• Cost-Effective: More affordable than higher-alloy grades like 316, ideal for budget-sensitive projects
• Aesthetic Appeal: Polished finishes offer a sleek, modern look for decorative uses
• Hygienic: Non-porous surface resists bacterial growth, meeting food and medical safety standards

These grades are often compared to 304 for specific use cases:

304 stainless steel square tubes are the workhorse of stainless steel tubing, offering a winning combination of corrosion resistance, formability, and affordability. They excel in general-purpose applications, from construction to food processing, where durability and versatility are key. For most non-aggressive environments, 304 delivers reliable performance without the premium cost of higher-grade alloys.