6061 aluminum alloy has become the preferred material in industrial manufacturing, building structures, electronic equipment and other fields thanks to its strength, corrosion resistance, machinability and lightweight properties. Compared with other aluminum alloys, 6061 offers high strength, good toughness and excellent weldability, making it widely used across many industries.
Chalco offers five categories of 6061 aluminum alloy extrusions to match different application requirements:
Chalco 6061 Aluminum Extrusion Parameters
Temper: T4, T5, T6, T651
Extrusion Tonnage & Mould Development: 600 T – 12, 500 T extruders • OEM / ODM with exclusive-mould design
Deep Processing: CNC / cutting / punching / inspection / tapping / drilling / milling
Surface Treatment: polishing, anodizing, powder coating, electrophoresis, wood grain, brushing, etc.
Color: Silver, Champagne, Bronze, Gold, Black, Sand coating, Acid & Base anodizing, or customized
6061-T6 Extrusions
Chalco 6061-T6 extrusions pair aerospace-grade 280 MPa strength with ±0.05 mm precision and marine-level corrosion resistance—request your custom quote now and get parts in as fast as 15 days.
- High-strength T6 temper for heavy-duty frames
- Outstanding corrosion resistance in outdoor & marine use
- ±0.05 mm machining tolerance supports complex designs
- GTAW / MIG weldable for fast on-site assembly
- Each batch 100 % ultrasonic & tensile tested
For temper details, see our 6061-T6 Guide. Or get Instant QuoteQuick Quote
6061 Standard Extrusions – Solid & Hollow Sections
Chalco's standard 6061 extrusions cover both solid sections (commonly called bars) and hollow sections (tubes), making them a go-to choice for general machinery frames, structural supports and OEM parts across multiple industries.Quick Quote
For load-bearing parts, precision machining and general manufacturing thanks to high strength and good machinability.
6061 Square / Flat Bars
6061 Hexagonal Bars
Lightweight yet strong—ideal for transport structures, fluid systems and architectural frames.
6061 Round Tubes
6061 Square Tubes
6061 Rectangular Tubes
6061 Structural Extrusions – Heavy-Duty Load-Bearing Sections
For cranes, machine frames and industrial platforms that can't fail, Chalco 6061 structural extrusions deliver high fatigue strength and weldability—produced on 4, 000-12, 500 T presses and CNC-finished to ±0.05 mm for ready-to-assemble precision.Quick Quote
6061 Support & Connection Extrusions: angle, channel and custom sections for bracing, corner reinforcement and modular assembly.
6061 Modular T-Slot Extrusion : ideal for automation frames and quick-change industrial workstations.
6061 Heat-Sink Extrusions – High Thermal Conductivity
With up to 170 W/m·K thermal conductivity and ±0.05 mm CNC accuracy, Chalco 6061 heat-sink extrusions keep LED drivers, inverters and power modules cool while cutting weight by 35 % vs. cast aluminum.Quick Quote
Heat Sink
Finned Heat Sink
Liquid-Cooling Heat Sink
6061 Motor-Shell Extrusions – Lightweight Cooling Housings
Replace heavy cast iron: 6061 motor-shell extrusions cut weight 40 %, resist corrosion and dissipate heat efficiently—certified up to IP67 for EV, generator and gearbox applications.Quick Quote
Standard Housing
EV Housing
Generator Housing
6061 Industrial Extrusions – Aerospace & Rail Grade
From aircraft nacelles to high-speed rail bodies, Chalco 6061 industrial extrusions combine 290 MPa yield strength with superb weldability—validated to AMS 4150 and EN 755-9.Quick Quote
Nacelle Frame
High-Speed Rail Body
Automotive Body
6061 Extrusion Capabilities – Production · Processing · Finishing
From 12, 500-ton extrusion presses to hard-anodized finishes, Chalco delivers end-to-end 6061 aluminum solutions for aerospace, automotive, construction and rail industries.
High-Tonnage Extrusion Production
600 T – 12, 500 T lines cover small precision parts to 30 m heavy sections.Quick Quote
- Wall thickness: 0.5 mm – 50 mm
- Max length: 30 m (custom sizes on request)
- Alloy tempers: O, T4, T5, T6, T651, T73
Precision Secondary Processing
One-stop CNC, forming and welding to ±0.05 mm for ready-to-assemble parts.Quick Quote
- Machinable wall: 0.5 mm – 100 mm
- Max size: up to 12 m
- TIG / MIG / FSW welding available
Diverse Surface Finishes
Anodizing, powder coating and specialty finishes extend service life and enhance appearance for harsh outdoor or high-temp use.Quick Quote
- Colors: silver, black, bronze, gold, red, etc.
- Coating thickness: 5 μm – 100 μm
Global Supply & Certifications
OEM / ODM support, 15-day global delivery and compliance with ASTM B221, EN 755, GB/T 5237, AMS 4150.Quick Quote
- Customized die design & rapid sampling
- Mass production backed by global logistics
- Full MTR & third-party test reports
6061 Extrusion Applications
With AMS-, ISO- and DNV-certified production, Chalco 6061 extrusions serve seven demanding industries worldwide.
Aerospace
Boeing & Airbus trust 6061-T6 beams to cut wing-rib weight by 18 %.
- Wing rib – 6061-T6 H-beam
- Satellite truss – 6061-T651 square tube
Automotive & EV
Tesla battery trays use Chalco C-profiles, saving 12 kg per car.
- Battery tray – 6061 C-profile
- Crash box – 6061 square tube
Marine & Offshore
DNV-approved 6061 seawater extrusions extend deck life by 3×.
- Hull railing – 6061 U-section
- Offshore ladder – 6061 Z-profile
Building Structures
6061 curtain-wall frames withstand typhoon loads for 25 years.
- Curtain wall – 6061 L-section
- Bridge girder – 6061 H-beam
Renewable Energy
40 MW solar farm uses pre-slotted 6061 H-profiles; install time −30 %.
- PV tracker beam – 6061 H-profile
- Wind tower ladder – 6061 angle
Industrial Automation
6061 T-slot frames speed up assembly-line change-over by 50 %.
- Robot base – 6061 T-slot
- Storage rack – 6061 Z-profile
Power & Grid
IEC-61238 busbars cut resistive loss by 5 % in 220 kV substations.
- Busbar – 6061 conductive bar
- Cable tray – 6061 square tube
Defense Systems
6061-T651 I-profiles meet MIL-DTL-46147 for armored vehicle decks.
- Armor deck – 6061 I-profile
- Drone frame – CNC-machined 6061 plate
6061 Extrusion Buying Guide & FAQs
Selecting the right 6061 extrusion means matching temper, geometry, processing and finish to your load, weight and corrosion targets. Use the quick check-lists below to cut engineering time and avoid costly rework.
1. Temper · Shape · Finish
- Temper – T4 (forming), T6 (high strength), T651 (stress-relieved)
- Shape – Square / round / rectangular tube, H-, T-, C-, radiator profiles
- Finish – Anodize, powder coat, electrophoresis, sand-blast, etc.
- Processing – CNC ±0.05 mm, TIG/MIG/FSW welding, bending, stamping
2. 6061 vs. Other Alloys
| Alloy | Strength | Corrosion | Machinability | Best For |
| 6061 | ★★★★☆ | ★★★★☆ | ★★★★☆ | Industrial structures, auto, aero |
| 6063 | ★★★☆☆ | ★★★★☆ | ★★★★★ | Doors, windows, decor |
| 2024 | ★★★★★ | ★★☆☆☆ | ★★★☆☆ | Aerospace high strength |
| 7075 | ★★★★★ | ★★★☆☆ | ★★☆☆☆ | Defense, racing |
| 5052 | ★★☆☆☆ | ★★★★★ | ★★★☆☆ | Marine tanks, chem-equip |
3. Common Myths
- "6061 can't be welded” – T4/T5 weld easily; T6 regains strength after PWHT.
- "Same strength as steel” – High specific strength, but check absolute load.
- "All 6061 is equal” – Mechanical properties vary with press, heat-treatment & QC.
4. Pre-Purchase Checklist
- Meets ASTM B221 / EN 755 / AMS 4150?
- Press capacity ≥ 6, 000 T for large sections?
- Third-party tensile & hardness reports?
- Secondary ops in-house (CNC, anodize, weld)?
- Global logistics – 15 day lead time achievable?
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
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