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What are the specifications for stainless steel decorative tubes?

Category： Latest News

Release time：2026-01-15

There are indeed numerous specifications for stainless steel decorative tubes. Let me outline the common types and key selection points for you.

I. Specification Notation Methods
Round Tubes: Typically denoted as “Outer Diameter × Wall Thickness,” e.g., Φ16×1.0mm, Φ25×1.2mm.
Square/Rectangular Tubes: Typically denoted as “Side Length × Side Length × Wall Thickness,” e.g., 20mm × 20mm × 0.8mm, 50mm × 50mm × 2.0mm.

II. Common Specification Dimensions
1. Common Round Tube Specifications

Common outer diameters range from Φ6mm to Φ140mm, with wall thicknesses generally between 0.3mm and 5.0mm.

Thin-walled tubes (wall thickness ≤0.35mm): Commonly used in non-load-bearing applications like interior ceilings and decorative trim, e.g., Φ16×0.5mm, Φ25×0.3mm.
Medium-thickness tubes (wall thickness 0.3-0.4mm): Highly versatile, suitable for window frames, railings, etc., e.g., Φ25×0.3mm, Φ38×1.0mm.
Thick-walled tubes (wall thickness ≥0.4mm): Used for outdoor load-bearing structures, e.g., Φ89×3.0mm, Φ140×5.0mm.
2. Common Square Tube Specifications

Common side lengths range from 19mm×19mm to 150mm×150mm, with wall thicknesses typically between 0.4mm and 8.0mm.

Standard sizes: e.g., 19mm × 19mm × 0.8mm, 50mm × 50mm × 2.0mm, 100mm × 100mm × 5.0mm, suitable for security grilles, guardrails, stair handrails, etc.
Large sizes: e.g., 150mm × 150mm × 8.0mm, used for large curtain wall frames and load-bearing structures.
III. Materials and Surface Finishes
Common Materials:
200 Series (e.g., 201, 202 – low cost)
304 Series (304, 304L – versatile)
316 Series (316, 316L – excellent corrosion resistance)
400 Series (e.g., 430 – prone to rust)
Common Surface Finishes: Brushed (No.4), Mirror (No.8), Electrolytic Polishing, Coloring/Coating (e.g., Black Titanium Gold, Rose Gold).
IV. How to Select Appropriate Specifications
Define Application: Choose based on load-bearing requirements and installation location (indoor/outdoor).
Consider Material and Surface Finish: Select according to environmental conditions (e.g., corrosion resistance needed in coastal areas) and aesthetic needs.
Consult Suppliers: Obtain the latest specifications, pricing, and inventory information.
Compare Brands: Different brands may vary in quality and price. 

keywords： What are the specifications for stainless steel decorative tubes?

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