Stainless Steel Square Tube 304 - 4 Inches X 0.25

4" x 4" 304 Stainless Steel Square Tube with a 0.250" wall thickness, available in 20-foot lengths. Meets ASTM A269 specifications with 73,200 PSI tensile strength, excellent corrosion resistance, and superior weldability. Its large profile is ideal for structural columns, heavy equipment frames, and architectural supports.

This 4" x 4" x 0.250" wall 304 Stainless Steel Square Tube conforms to ASTM A269, delivering 73,200 PSI tensile strength with superior weldability and corrosion resistance. Its excellent structural integrity makes it ideal for heavy-duty applications including frames and supports.

Specifications

This Type 304 austenitic stainless steel welded square tube, containing 18% chromium and 8% nickel, offers superior resistance to oxidation and corrosion. Non-magnetic in the annealed condition and conforming to ASTM A269, it provides an excellent balance of strength, toughness, and fabrication characteristics.

As a large-profile tube, this 4-inch square size delivers exceptional strength-to-weight for demanding jobs: structural columns, heavy equipment frames, industrial supports, and large-scale architectural elements where both load-bearing capacity and a clean aesthetic are required.

Industrial Framing:

Heavy equipment frames and machinery supports - High strength-to-weight ratio and excellent weldability.

Architectural:

Structural support columns and large railings - Superior corrosion resistance and clean aesthetic lines.

Food & Beverage:

Equipment bases and conveyor structures - Resists corrosion from harsh cleaning solutions.

Marine:

Non-critical structural components (freshwater) - Withstands moisture and environmental exposure.

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