Light Wall Longitudinal Welded Steel Tube

Light Wall Longitudinal Welded Steel Tube: The Modern Solution for Structural and Mechanical Applications

Engineers and fabricators seeking efficient, lightweight, and high-strength material solutions consistently turn to advanced welded tubing. Within this category, our Light Wall Longitudinal Welded Steel Tube stands out for its exceptional performance-to-weight ratio. This product is part of a specialized family of tubing designed for applications where material savings and structural integrity are paramount. For projects requiring even more refined profiles, we offer related solutions such as the Slim Wall Straight Seam Welded Pipe and the Fine Wall Straight Seam Steel Pipe, both known for their precision. Conversely, when the primary specification revolves around minimal material use, our Low Thickness Longitudinal Welded Tube and Thin Gauge Longitudinal Seam Welded Pipe provide optimal solutions for lightweight framing, supports, and certain fluid conveyance systems where pressure requirements are moderate.

Technical Specifications and Manufacturing Excellence

The superior quality of our Light Wall Longitudinal Welded Steel Tube is rooted in stringent manufacturing controls and clear, comprehensive specifications. Produced from high-grade steel coil, the tube is formed and welded along a single longitudinal seam using advanced high-frequency welding (HFW) or electric resistance welding (ERW) techniques. This process ensures a consistent, robust weld with minimal heat-affected zone, preserving the base metal's properties. Following welding, the tube undergoes critical post-weld processes. Sizing mills calibrate the final dimensions to tight tolerances, and non-destructive testing (NDT), including eddy current or ultrasonic inspection, is standard to guarantee weld integrity and tube soundness. The product is available in a versatile range of sizes, finishes, and can be supplied in random lengths, cut-to-length, or bundled per customer requirements.

Key Product Parameters

Standard Specifications: ASTM A500, ASTM A513, EN 10219, or equivalent international standards.
Welding Process: High-Frequency Welding (HFW) / Electric Resistance Welding (ERW).
Common Shapes: Round, Square, and Rectangular.
Wall Thickness Range: Typically from 0.8mm (0.031") up to 3.0mm (0.118"), categorized as light wall.
Outside Diameter (Round) / Side Dimensions (Square/Rectangular): Wide range available, commonly from 10mm to 200mm.
Material Grades: Commercial Quality (CQ), Structural Quality (SQ), ASTM A36, S235JR, S355JR, etc.
Surface Finish: Mill finish (with light oxide scale), pickled & oiled, or galvanized (upon request).
Testing & Certification: Mill Test Certificate (MTC/EN 10204 3.1) provided. Optional NDT reports available.

Nominal Size (OD or Sides)	Typical Wall Thickness	Standard Length	Common Material Grade	Primary Application Examples
1/2" (12.7mm) Round	0.035" (0.9mm)	20' (6m) Random	A500 Gr. B, A513 Type 1	Furniture frames, handrails
1" (25.4mm) Square	0.065" (1.65mm)	24' (7.3m) Random	A500 Gr. C, S355JR	Light structural frames, display systems
2" x 1" (50.8mm x 25.4mm) Rectangular	0.083" (2.1mm)	Cut-to-Length	A500 Gr. B, S235JR	Vehicle framework, machinery guards
2-1/2" (63.5mm) Round	0.120" (3.0mm)	20' (6m) Random	A513 Type 5, S355J2H	Moderate load-bearing structures

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Light Wall Longitudinal Welded Steel Tube