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Location: HOME > PRODUCTS > Aluminum / Aluminum Alloy > Aluminum/Aluminum Alloy Pipe > 6061 Al-Mg-Si-Cu aluminum alloy tube

6061 Al-Mg-Si-Cu aluminum alloy tube

6061 is a heat-treatable, wrought aluminum alloy belonging to the Al-Mg-Si-Cu series (formerly designated LD30). It is the most widely used structural aluminum alloy; it offers higher strength than 6063, exhibits excellent machinability, and balances weldability with corrosion resistance.

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6061 is a heat-treatable, wrought aluminum alloy belonging to the Al-Mg-Si-Cu series (formerly designated LD30). It is the most widely used structural aluminum alloy, offering higher strength than 6063, excellent machinability, and a balance of weldability and corrosion resistance.

Key characteristics: High strength, good machinability, minimal deformation after quenching, good weldability, and atmospheric corrosion resistance; however, it is more difficult to extrude than 6063, and the surface finish after anodizing is slightly less refined than that of 6063. It is suitable for load-bearing structural components. Density: 2.70 g/cm³.

Common supply tempers:

T6: Solution heat treatment followed by artificial aging (most common). Tensile strength ≥290 MPa, yield strength ≥240 MPa, elongation ≥10%, hardness approx. 95 HB.

T4: Solution heat treatment followed by natural aging; offers better ductility but lower strength, making it suitable for bending/forming.

O: Annealed state; very soft, suitable for deep forming.

Parameter	Available Specifications
Alloy	1050, 1060, 1100, 2014, 2024, 3003, 5052, 5083, 6061, 6063, 6082, 7075
Temper	O, H12, H14, H16, H18, H22, H24, H32, H34, T3, T4, T5, T6, T8
Outer Diameter (OD)	6 mm – 600 mm (±0.05 mm – ±0.5 mm)
Wall Thickness (WT)	0.5 mm – 50 mm (±0.05 mm – ±0.3 mm)
Length	1 m – 12 m (custom cut available)
Shape	Round, square, rectangular, oval, special shaped
Surface Finish	Mill finish, polished, anodized, brushed, powder coated, PVDF coated, wood grain
Production Standard	GB/T 4437.1，GB/T3190；ASTM B221；EN 755
Application	Construction frame, handrail, window/door frame, tent pole, automotive part, heat exchanger, irrigation pipe, furniture, solar tracker
Packing	Woven bag or PVC film inside, wooden pallet / carton outside, end caps for protection
MOQ	500 kg – 1000 kg (sample order negotiable)
Supply Ability	3000 tons / month
Delivery Port	Shanghai, Tianjin, Guangzhou, Qingdao
Lead Time	7 –20 days after deposit

Chemical composition

Si	Mg	Cu	Cr	Fe	Mn	Zn	Ti	Single impurity	Other impurities	Al
0.40～0.80	0.80～1.20	0.15～0.40	0.04～0.35	≤0.70	≤0.15	≤0.25	≤0.15	≤0.05	≤0.15	Margin

6061 aluminum alloy tubes are available as extruded or seamless cold-drawn tubes; round, square, and rectangular profiles can all be produced.

Surface treatments include natural anodizing, hard anodizing, powder coating, polishing, and brushing.

Note: T6 temper is preferred for machined parts, with anodizing performed after machining.

Application Scenarios

1. General Mechanical Structures

Load-bearing equipment frames, automation equipment supports, machine bases, connecting pipe fittings, pneumatic cylinder barrels, tooling and fixtures, CNC machined parts.

2. Transportation

Automotive chassis components, vehicle frame supports, marine deck structural components, motorcycle frames, lightweight load-bearing components for rail transport.

3. Medical Devices (External use only; human implantation prohibited)

Heavy-duty medical equipment supports, load-bearing guide rails for examination beds, support frames for large medical instruments, heavy-duty medical cart frameworks.

Comparison with 6063: 6061-T6 is the preferred choice for medical frames requiring higher load-bearing capacity.

4. Aerospace & Precision Equipment

Secondary aerospace structural components, radar mounts, optical instrument supports, testing fixtures.

5. Others

Hydraulic piping, heavy-duty photovoltaic mounting structures, load-bearing tubes for fitness equipment, mold tooling, robotic frames.

Payment Methods

Flexible payment terms available: T/T and L/C. For new clients, 30% advance payment for production, balance against copy of B/L. L/C is acceptable for large & regular orders to secure both parties.

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Warehousing Management

Before each batch of steel leaves the factory, a complete process inspection is strictly carried out. From chemical composition, mechanical properties to dimensional tolerance and surface quality, each item is carefully checked to ensure compliance with national standards and export regulations. At the same time, the quantity, packaging and rust prevention treatment are also verified. An original factory warranty certificate is attached, guaranteeing the quality. Before shipment, inspection photos are provided. Any non-compliant items will not be released, and the quality is fully controllable throughout the process. This ensures your overseas purchasing is safe and worry-free.

All items are visually inspected before delivery. No cracks, deformation, rust, scratches or cutting marks are allowed; edges must be smooth. Only visually sound products will be shipped.

Thickness, width, length, wall thickness, outer diameter have been measured. Straightness, curvature, torsion, diagonal tolerance all meet the corresponding tolerance requirements.

Quality inspection includes: mechanical property tests (yield strength, tensile strength), elongation rate, impact energy, hardness testing, chemical composition testing, process performance testing, etc.

Inspection according to packaging requirements: secure binding, moisture-proof film, rust-proof paper, export fumigation/fumigation-free wooden crates, shipping marks, gross weight, net weight, etc.

We will provide full reception services to support the customers' on-site inspection of the goods.

Hot Rolling Production Line

Cold rolling precision processing

Cold drawing/cold rolling line

Hot Rolling Production Line

Hot rolling production line (producing hot-rolled coils/medium-thick plates, thickness 2–60mm)

Cold rolling precision processing

(Producing ultra-thin / high-precision / shiny panels, with thickness ranging from 0.1 to 3mm, for high-end products)
Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Warehousing Management

A ten-thousand-ton standardized warehouse with grid-based zoning and system positioning enables rapid material retrieval and reduces the time spent searching for materials.

Inbound inspection: Verify the physical items against the inbound form, inspect the appearance, dimensions, and labels. Once confirmed to be correct, the materials are entered into the ERP system and processed for storage.

Logistics and Global Delivery: Self-operated fleet + contracted logistics partners; expedited service available for urgent orders.

International Shipping: Supports FOB, CIF, DDP, and other trade terms, covering 100+ countries and regions.

Process: Booking → Trucking → Customs Declaration → Loading onto Ship/Aircraft → Bill of Lading Issuance → Document Delivery → Destination Port Customs Clearance (Optional) → Last-Mile Delivery.

Provides door-to-door one-stop logistics with full tracking to ensure safe and timely arrival of goods.

After-Sales Service and Traceability: Delivery receipts, logistics information, and quality inspection documents are sent to customers within 24 hours of shipment.

Established a full product lifecycle traceability system, allowing tracking of production, quality inspection, warehousing, and transportation records.

Follow-up inspection within 72 hours of arrival; rapid response and handling of quality issues; assistance in resolving customs clearance issues for foreign trade orders.

Packaging Method