Ultra Thin Wall Rectangular Steel Pipe

For projects demanding exceptional strength, modern aesthetics, and material efficiency, ultra thin wall rectangular steel pipe represents the pinnacle of structural tubing design. This specialized hollow section, also known by various industry terms, is engineered for applications where maximizing strength-to-weight ratio is critical. You might be searching for the ideal solution under different names, such as Light Gauge Rectangular Hollow Tube or Slim Thickness Rectangular Steel Pipe. These terms all refer to precision-formed steel sections with minimal wall thickness, offering significant advantages over bulkier alternatives. In architectural and design contexts, it is often specified as a Low Wall Rectangular Hollow Section, perfect for sleek frameworks, railings, and display structures. For high-performance mechanical and vehicular applications, the superior dimensional accuracy and clean lines of a Fine Wall Rectangular Steel Tube are unmatched. This category of product delivers an optimized profile that reduces overall weight without compromising on structural integrity, enabling cleaner designs and often lowering material and transportation costs.


The defining characteristic of this Ultra Thin Wall Rectangular Steel Pipe is its precise geometric profile combined with a significantly reduced wall thickness. Manufactured typically from high-grade mild steel, stainless steel, or aluminum, it undergoes a cold-forming or electric resistance welding (ERW) process to achieve tight tolerances and excellent surface finish. The rectangular shape provides high resistance to bending in both primary axes, making it exceptionally stiff for its weight. This makes it ideal for frames, chassis, enclosures, and architectural features where a slim, modern appearance is desired. It is crucial to select the correct specifications for your project, which involves understanding the interplay between outer dimensions, wall thickness, and material grade. Below are the detailed parameters that define our standard range of Ultra Thin Wall Rectangular Steel Pipe.

Key Product Specifications & Features

  • Material: Primarily ASTM A500 Grade B & C Carbon Steel, AISI 304/316 Stainless Steel, and 6061/6063 Aluminum.
  • Manufacturing Process: Cold-formed and Electric Resistance Welding (ERW) for superior dimensional consistency.
  • Surface Finish: Mill finish, hot-dip galvanized, powder-coated, or polished (for stainless steel).
  • Key Advantage: Excellent strength-to-weight ratio, facilitating lightweight and cost-effective structures.
  • Tolerance: Strict adherence to ASTM, EN, and JIS standards for outer dimensions and wall thickness.

Standard Size Range (Carbon Steel)

Outer Dimensions (mm) Wall Thickness (mm) Approx. Weight per Meter (kg/m) Common Standard
20 x 10 0.8 - 1.2 0.35 - 0.50 ASTM A500
30 x 15 0.9 - 1.5 0.60 - 0.95 ASTM A500 / EN 10219
40 x 20 1.0 - 1.8 0.90 - 1.55 ASTM A500 / EN 10219
50 x 25 1.2 - 2.0 1.35 - 2.15 ASTM A500
60 x 30 1.5 - 2.3 2.10 - 3.10 ASTM A500 / JIS G3466
80 x 40 1.8 - 2.6 3.30 - 4.70 EN 10219

Note: Custom sizes, non-standard wall thicknesses, and specific material grades are available upon request. Tolerances are typically ±0.2mm on wall thickness and ±0.5mm on outer dimensions for standard ranges. Mechanical properties such as yield strength and tensile strength vary by material grade; please consult our technical datasheets for detailed information.

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