Here’s a professional English description of stainless steel hexagonal pipes, covering their introduction, specifications, standards, features, advantages over round pipes, and applications:

1. Introduction to Stainless Steel Hexagonal Pipes

Stainless steel hexagonal pipes are hollow tubes with a regular hexagonal cross-section, made from corrosion-resistant stainless steel (e.g., 304, 316, 201). They combine the durability of stainless steel with the mechanical benefits of a hexagonal shape, making them ideal for structural, decorative, and industrial uses.

2. Specifications

Material Grades: 304, 304L, 316, 316L, 201, 430, etc.
Across Flats (A/F): 6mm–100mm (common sizes: 10mm, 12mm, 17mm, 19mm).
Wall Thickness: 0.5mm–5mm (customizable).
Length: Standard 6m/piece, or cut-to-length.

3. Standards

International:
- ASTM A554 (Decorative Welded Stainless Steel Tubing)
- JIS G3463 (Japanese Industrial Standard)
China:
- GB/T 18705 (Decorative Stainless Steel Welded Pipes)
- GB/T 12770 (Mechanical Structural Stainless Steel Welded Pipes)

4. Key Features

Corrosion Resistance: Suitable for harsh environments (e.g., marine, chemical).
High Strength: Hexagonal structure offers superior torsional and load-bearing capacity.
Aesthetic Appeal: Sleek edges for modern designs; surface finishes (brushed, mirror, etc.).
Machinability: Easy to weld, bend, and polish.

5. Advantages Over Round Pipes

Aspect	Hexagonal Pipe	Round Pipe
Structural Strength	Better resistance to bending/twisting	Good compression, weaker in torsion
Installation	Flat edges prevent rolling; easy grip	Requires clamps; rolls easily
Space Efficiency	Tight hexagonal packing saves space	Gaps between round pipes
Design Flexibility	Unique geometry for decorative uses	Traditional, neutral appearance

6. Applications

Machinery: Tool handles, bolts, shafts (anti-slip hexagonal grip).
Construction: Handrails, guardrails, frameworks (sturdy & stylish).
Automotive: Exhaust brackets, chassis parts (heat/corrosion resistance).
Furniture: Table legs, lamp stands (durability + design).
Chemical Industry: Reactor supports, pipelines (acid/alkali resistance).

7. Notes

Material Selection: 316/L for high-corrosion environments (e.g., coastal areas).
Surface Finish: Brushed/satin finishes reduce fingerprints; mirror polish for decor.
Welding: Use stainless steel-specific electrodes to avoid contamination.

For detailed parameters (e.g., weight calculation, tolerances), feel free to specify your requirements.

This version is concise, technical, and suitable for international audiences. Let me know if you need modifications!