Aluminum Round Tube / Tubing | 6061/6063 | Gengfei
Gengfei manufactures aluminum round tube (also called aluminium round tube / tubing) for structural frames, HVAC, marine, furniture, automotive and aerospace fixtures. We supply extruded, drawn/precision, and seamless tubes in 6061-T6, 6063-T5/T6, 5083/5086, 2024, 7075, and more—delivered as full lengths or custom-cut with anodized/powder-coated finishes.
24-hour quote • Tight tolerances • Global sea/air freight
Standards & Compliance
ASTM B221 (extruded bars/rods/shapes/tube), ASTM B241/B241M (aluminum pipe & seamless), ASTM B210 (drawn seamless tube)
EN 755-1/-2/-9, EN 573, GB/T 6892
Surface finishes per ISO 7599 (anodizing) or buyer spec
RoHS/REACH compliant options available
Quick Specs (at a glance)
| Item | Capability / Options |
|---|---|
| Manufacturing | Extruded · Drawn (precision) · Seamless · Welded |
| Alloys | 6061, 6063, 6082, 5052, 5083/5086 (marine), 2024, 7075 (high strength) |
| Tempers | O, T4, T5/T6, T6511 (drawn/straightened) |
| OD range | 6–508 mm (¼”–20″); larger by request |
| Wall thickness | 0.5–25 mm (thin-wall available) |
| Length | 3 m / 6 m standard; cut-to-length |
| Finish | Mill, anodized (clear/black/colors), powder-coated, brushed, polished |
| Tolerances | Per ASTM B221 / EN 755-9 / GB/T 6892 or buyer spec |
| Certificates | Mill test report (heat/lot), RoHS/REACH on request |
| Services | Cutting, deburring, chamfering, drilling, slotting, custom packing |
Alloy Selection Guide
| Alloy | Strength | Corrosion | Formability | Weldability | Typical Uses |
|---|---|---|---|---|---|
| 6061-T6 | High | Good | Good | Excellent (5356 filler recommended) | Structural frames, fixtures, general engineering |
| 6063-T5/T6 | Medium | Good | Excellent surface/anodize | Excellent | Architectural trim, display, furniture, telescoping |
| 6082-T6 | High (↑ vs 6061) | Good | Good | Very good | Structural/mech parts, EU markets |
| 5083/5086-O/H116 | Medium | Excellent (marine) | Good | Excellent | Marine rails, handrails, salt-spray environments |
| 2024-T3/T4 | High | Fair | Fair | Limited | Aerospace fixtures (non-corrosive env.) |
| 7075-T6 | Very high | Fair | Moderate | Limited | High-strength jigs, UAV parts (with coating) |
Tube Types & When to Choose
Extruded Tube – cost-effective, broad size range; ideal for general fabrication and structural frames.
Drawn / Precision Tube – tighter OD/ID tolerances and better surface finish; ideal for telescoping sets, bushings, and precision fits.
Seamless Tube – highest integrity; recommended for pressure/critical or aggressive machining.
Welded Tube – economical for large OD/light gauge; good for architectural and low-pressure flow.
Typical Dimensions (popular sizes)
| Metric OD × Wall (mm) | Inch OD × Wall |
|---|---|
| 19 × 1.5 | ¾" × 0.058" |
| 25 × 2.0 | 1" × 0.083" |
| 32 × 2.0 | 1¼" × 0.083" |
| 38 × 3.0 | 1½" × 0.120" |
| 50 × 3.0 | 2" × 0.120" |
| 76 × 4.0 | 3" × 0.156" |
| 101.6 × 4.8 | 4" × 0.188" |
Full size lists available; we cut to your exact OD × wall × length.
Surface Finishes
Mill & Polished: clean extrusion finish; polishing to brushed (#4) or mirror.
Anodized: clear/black/colors; improved wear/corrosion; consistent architectural tone (6063 is best for decorative anodizing).
Powder-Coated: RAL colors, exterior-grade durability.
Protective Films: PVC/PE for scratch-free fabrication.
Applications
Structural frames & machine guards
Furniture & display systems (lightweight, clean finish)
Marine rails & ladders (5083/5086, anodized)
Automotive racks & chassis components (6061/6082)
HVAC, handrails, bicycle parts, UAV/robotics
Telescoping poles (precision drawn 6063 sets)
How to Specify Your Order (send this in your RFQ)
Alloy & Temper: e.g., 6061-T6 or 6063-T5
Size: OD × wall × length (mm or inch)
Type: extruded / drawn / seamless / welded
Finish: mill / anodized (color/spec) / powder-coated (RAL) / polished
Tolerances/Standard: ASTM/EN/GB or drawing tolerance
Quantity & Packaging: piece count, bundle/pallet, film wrap, corner guards
Certificates/Tests: MTR, anodize thickness, salt spray (if needed)
Example: 6061-T6 drawn tube, 25.4 mm OD × 1.65 mm wall × 6000 mm, clear anodized 10–15 µm, EN 755-9, PVC film, 2.0-ton lot, MTR required.
Quality & Testing
Dimensional inspection (OD/ID, wall, straightness)
Surface inspection (scratch/dent criteria)
Anodize thickness & adhesion tests as requested
Heat/lot traceability with MTR for each shipment
Packaging & Logistics
Export seaworthy packing: plastic sleeve + film wrap, kraft, end caps, bundle with edge protectors; fumigation-free pallet.
Lengths: 3 m/6 m standard; cut-to-length to reduce scrap.
Shipping: containerized sea freight, consolidated LCL for small orders, airfreight for urgent builds.
FAQs
Is “tube” different from “pipe”?
Yes. Tube is specified by OD × wall and tighter tolerances; pipe uses nominal schedules for flow. If you need NPS/Schedule, ask for aluminum pipe (ASTM B241).
6061-T6 vs 6063-T5—how do I choose?
6061-T6 is stronger and widely used for structures; 6063-T5 has superior surface quality and anodizes more uniformly—great for visible parts and telescoping.
Can I weld aluminum tube?
Yes. Use appropriate filler (e.g., ER5356 for 5xxx/6xxx). Note that T6 strength is reduced in the HAZ; design accordingly or consider post-weld heat treatment.
Do you supply thin-wall and precision drawn tubes?
We do—ideal for telescoping or weight-critical builds. Provide fit/clearance requirements.
Marine use?
Choose 5083/5086 or anodized 6061/6063 with proper sealing; rinse after salt exposure for longevity.
