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Stainless Steel Flat Tube

Yunming Metal’s Stainless Steel Flat Tubes offer a low-profile rectangular design, excellent corrosion resistance, and smooth surface finishes for structural and decorative applications.

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Product Overview

Stainless steel flat tubes are widely used in structural and decorative applications that require a low-profile rectangular shape. These tubes provide excellent corrosion resistance, smooth surfaces, and precise dimensional tolerance, making them ideal for architectural, mechanical, and industrial designs.

Their flat-sided design ensures strength and uniformity, while also offering a clean, modern aesthetic for interior and exterior use.

Application Areas

  • Architectural handrails and structural frames

  • Furniture design and decorative supports

  • Door and window frames, balustrades

  • Machine brackets and mechanical enclosures

  • Automotive frames and trailer construction

  • General fabrication and engineering projects

Product Features

  • Rectangular flat design suitable for compact structures

  • Excellent resistance to corrosion, rust, and weathering

  • Consistent wall thickness and dimensional accuracy

  • Easy to process: cut, weld, polish, and drill

  • Decorative finishes available for aesthetic appeal

  • Custom sizes and surface treatments offered upon request

Technical Specifications

Item Description
Material Grades 304, 304L, 316, 316L, 321, 310S, 317L, 904L, 430, duplex 2205, 2507, etc.
Outer Dimensions 10mm × 10mm – 200mm × 200mm (approx. 3/8″ × 3/8″ – 8″ × 8″)
Wall Thickness Range 0.5mm – 20mm (approx. 1/64″ – 25/32″)
Length Up to 12 meters (approx. 39′ 4″) or customized (cut-to-length available)
Surface Finish 2B, BA, Mirror, Satin, Hairline, Pickled, etc.
Manufacturing Standards ASTM A554, ASTM A269, EN 10219, DIN 2395, GB/T 18705, etc.

Manufacturing Process

  1. Stainless steel coils are slit into required widths

  2. Precision roll forming creates the flat rectangular shape

  3. High-frequency or TIG welding is used for seam joining

  4. Weld seam is polished and optionally heat treated

  5. Surface finishes applied: mirror polish, hairline, or satin

  6. Tubes are cut to desired length and straightened

  7. Final quality control includes visual, dimensional, and weld inspections

Frequently Asked Questions (FAQ)

Q1: What is a flat tube used for?
A1: Flat tubes are ideal for structural, architectural, and decorative applications where a low-profile rectangular shape is needed.

Q2: Do you provide mirror-polished flat tubes?
A2: Yes, mirror, satin, and hairline finishes are available based on your application requirements.

Q3: Can I request a custom width or thickness?
A3: Absolutely. We can customize dimensions and finishes to meet your project specifications.

Q4: Are these tubes suitable for outdoor use?
A4: Yes, especially grades like 304, 316, and duplex stainless steel offer excellent outdoor corrosion resistance.

Q5: What industries commonly use stainless steel flat tubes?
A5: Common industries include construction, furniture, machine building, and decorative metal fabrication.