316 Stainless Steel Square Tube

316 Stainless Steel Square Tube offers excellent structural support with superior corrosion resistance for demanding applications. We manufacture this square tube through precision welding or seamless processes to ensure consistent quality and dimensional accuracy.

Product Parameters

– Common Sizes: 10mm x 10mm to 200mm x 200mm square sections
– Wall Thickness: 0.5mm to 10mm (welded), 1mm to 10mm (seamless)
– Length: 6 meters standard, custom lengths available up to 12 meters
– Manufacturing Process: Cold forming, automated TIG or plasma welding, solution annealing, pickling
– Executive Standards: ASTM A554, ASTM A312, EN 10217-7, JIS G3446
– Packaging: Protective caps, moisture-proof paper, steel bundles, or wooden cases for export
– Surface Finishes: Mill finish, pickled, 2B, brushed (HL), polished up to 600 grit

Chemical Composition (Typical)

– Carbon: ≤0.08%
– Silicon: ≤1.00%
– Manganese: ≤2.00%
– Phosphorus: ≤0.045%
– Sulfur: ≤0.030%
– Chromium: 16.0-18.0%
– Nickel: 10.0-14.0%
– Molybdenum: 2.0-3.0%

Physical Properties

– Tensile Strength: ≥515 MPa
– Yield Strength: ≥205 MPa
– Elongation: ≥40%
– Hardness: ≤95 HRB
– Density: 8.0 g/cm³

Product Applications

316 Stainless Steel Square Tube serves as structural support in building frameworks and architectural projects. Construction crews use this square tube for handrails, guardrails, and safety barriers. Machinery manufacturers choose it for equipment frames and industrial workstations. The tube also works well for decorative applications like furniture, display stands, and modern interior designs. Marine environments benefit from its enhanced corrosion resistance for dockside structures and boat fittings.

Supported surface treatments: Options include No.1, 2B, BA, 2D, No.4, HL, and 8K finishes . We support various surface customizations to meet your specific project requirements.