Alumīnija sakausējums 6061: Comprehensive Technical Specifications and Application Guide
As a professional aluminum supplier and exporter based in Bandung, we are committed to providing global clients with high-quality aluminum materials that meet international standards. Alumīnija sakausējums 6061 is one of the most popular and widely used grades in our core export product portfolio. This article provides a comprehensive technical introduction to Aluminum Alloy 6061, helping you gain an in-depth understanding of the properties, specifikācijas, and applications of this “versatile aluminum alloy.”
1. Alloy Overview and Metallurgical Characteristics
Alloy Family:) 6061 belongs to the Al-Mg-Si series of heat-treatable strengthening aluminum alloys.
Primary Strengthening Phase: Mg₂Si
Standard Temper: T6 (Solution heat-treated and then artificially aged) is the most commonly supplied condition.
International Standard Equivalents:
- Ķīna: 6061 (GB/T 3190)
- ASV: 6061 (ASTM B221, ASTM B211)
- Eiropā: EN AW-6061 (IN 573)
- Japāna: A6061 (JIS H4000)
2. Detailed Chemical Composition Analysis
Ķīmiskais sastāvs 6061 aluminum alloy is strictly controlled to ensure consistent performance.
| Elements | Satura diapazons (%) | Function and Influence |
|---|---|---|
| Silīcijs (Un) | 0.40-0.80 | Forms the Mg₂Si strengthening phase with magnesium, increasing strength. |
| Dzelzs (Fe) | ≤0.70 | Piemaisījumu elements, content must be controlled. |
| Vara (Cu) | 0.15-0.40 | Improves strength and corrosion resistance. |
| Mangāns (Mn) | ≤0,15 | Uzlabo graudu struktūru, improves strength. |
| Magnijs (Mg) | 0.80-1.20 | Forms the primary strengthening phase Mg₂Si with silicon. |
| Hroms (Kr) | 0.04-0.35 | Controls grain structure, improves corrosion resistance. |
| Cinks (Zn) | ≤0,25 | Piemaisījumu elements, content must be controlled. |
| Titāns (No) | ≤0,15 | Uzlabo graudu struktūru, improves casting properties. |
| Citi elementi | ≤0,05 (katrs) ≤0,15 (kopsumma) |
– |
| Alumīnijs (Al) | Līdzsvars | Base metal. |
3. Comprehensive Physical and Mechanical Properties
Fizikālās īpašības:
- Blīvums: 2.70 g/cm³ (Apm. 1/3 that of steel)
- Kušanas diapazons: 582-652° C
- Īpatnējā siltuma jauda: 896 J/(kg·K) 20°C temperatūrā
- Termiskās izplešanās koeficients: 23.6×10⁻⁶/K (20-100° C)
- Siltumvadītspēja: 167 W/(m·K) (T6 temperaments)
- Elektriskā vadītspēja: 40-50% IACS (Starptautiskais rūdīta vara standarts)
- Elastības modulis: 68.9 GPA
- Puasona attiecība: 0.33
Mehāniskās īpašības (Typical values for T6 temper):
| Īpašums | Vērtību diapazons | Pārbaudes standarts |
|---|---|---|
| Stiepes izturība (Rm) | 310-380 MPa | ASTM E8/E8M |
| Ražas spēks (Rp0,2) | 276-345 MPa | ASTM E8/E8M |
| Pagarinājums (A50 mm) | 10-17% | ASTM E8/E8M |
| Cietība | 95-100 HB | ASTM E10 |
| Noguruma spēks | 96 MPa (5×10⁸ cycles) | – |
| Bīdes stiprums | 207 MPa | – |
4. Detailed Explanation of Heat Treatment Tempers
6061 aluminum alloy can achieve desired properties through different heat treatments:
| Temper Designation | Heat Treatment Process | Galvenās īpašības | Tipiski pielietojumi |
|---|---|---|---|
| T4 | Solution heat-treated and naturally aged. | Mērens spēks, laba formējamība. | Components requiring subsequent forming. |
| T6 | Solution heat-treated and artificially aged. | Augsta izturība, good overall performance. | Strukturālās daļas, mechanical components. |
| T651 | Solution heat-treated, stress-relieved by stretching, and artificially aged. | Stress-relieved, lieliska izmēru stabilitāte. | Precision machined parts. |
| T6511 | Slightly stress-relieved by stretching. | Reduced residual stress, improved flatness. | Plāna lapa, precision components. |
| O | Rūdīts. | Mīksts, lieliska formējamība. | Components requiring deep forming. |
5. Product Forms and Standard Specifications
We supply 6061 aluminum in various forms to meet different processing needs.
Aluminum Profiles (Extruded):
- Minimum Cross-Section Size: Circumcircle diameter up to 250mm.
- Wall Thickness Range: 0.8mm-12mm (depending on design).
- Garums: Standarta 6 metri, pielāgojama.
- Tolerances: Comply with ASTM B221.
Aluminum Sheet/Coil:
- Biezuma diapazons: 0.3mm-150mm.
- Platuma diapazons: 500mm-2500mm.
- Virsmas apdare: F (as-fabricated), H112 (hot-finished), O (rūdīts), T6/T651.
- Special Requests: Stress-relieved (stretcher leveled) plate available.
Aluminum Bar:
- Diametra diapazons: φ5mm-φ500mm.
- Formas: Apaļš, square, hexagon.
- Supply Tempers: T6, T6511, O.
- Tolerance Grades: Hot-rolled, forged, precision drawn.
Aluminum Tube/Pipe:
- Outer Diameter Range: φ6mm-φ300mm.
- Wall Thickness Range: 0.5mm-25mm.
- Veidi: Seamless, metinātas.
- Standarti: Comply with ASTM B210/B221.
6. Machining and Fabrication Properties
Apstrādājamība:
- Machinability Rating: Labi (Apm. 50% relative to Alloy 2011 rated at 100%).
- Recommended Cutting Speeds: HSS tools 60-90 m/mans, Carbide tools 120-240 m/mans.
- Virsmas apdare: Good machined surface obtainable.
Metināmība:
- Gas Tungsten/ Metal Inert Gas (TIG/ME) Metināšana: Lieliski.
- Resistance Welding: Labi.
- Gas Welding: Nav ieteicams.
- Post-Weld Treatment: Can be re-heat-treated to restore properties.
- Filler Materials: 4043 vai 5356 aluminum welding wire.
Veidojamība:
- Cold Working: Labi (Best in annealed -O temper).
- Hot Working Temperature: 370-480° C.
- Minimālais izliekuma rādiuss: Aptuveni 1-2 times material thickness (depends on temper).
7. Surface Treatment Options
We can provide or recommend various surface treatments:
| Treatment Type | Procesa apraksts | Pārklājuma biezums / Efekts | Piemērojamie standarti |
|---|---|---|---|
| Anodēšana | Sulfuric acid anodizing, colorable. | 5-25µm | MIL-A-8625, ISO 7599 |
| Ķīmiskās konversijas pārklājums | Chromate or chrome-free treatment. | 0.3-1.0µm | MIL-DTL-5541 |
| Pulvera pārklājums | Electrostatic spray and bake curing. | 40-120µm | AAMA 2604/2605 |
| Sandblasting/Bead Blasting | Mechanical blasting for uniform matte finish. | Controllable surface roughness. | Customer specification. |
| Polishing/Brushing | Mechanical or chemical polishing. | Mirror or brushed finish. | Customer specification. |
8. Corrosion Resistance and Environmental Suitability
- Atmospheric Corrosion: Good resistance, especially in dry and rural environments.
- Sprieguma korozijas plaisāšana (SCC) Susceptibility: Good resistance in T6 temper.
- Marine Environment: Moderate resistance; significantly improved after anodizing.
- Acid/Alkali Environments: Resistant to weak acids/alkalis; corrodes in strong acids/alkalis.
- Contact with Other Metals: Avoid direct contact with dissimilar metals like copper, steel to prevent galvanic corrosion.
9. Quality Control and Certifications
We ensure all exported 6061 Aluminum Alloy complies with the following standards:
Materiāla sertifikācija:
- Mill Test Certificate (MTC) provided for each batch.
- Chemical composition meets standard requirements.
- Mechanical property test report.
- Dimensional tolerance inspection report.
Izsekojamība:
- Complete production batch records.
- Heat treatment records.
- Inspection and test records retained for at least 10 gadiem.
Third-Party Certification:
- Third-party inspection (piem., SGS, BV, TUV) can be arranged.
- Complies with environmental directives like RoHS, REACH.
- Special certifications provided per customer request.
10. Packaging and Shipping Standards
We provide professional packaging to ensure product quality during international shipping.
| Produkta veids | Standard Packing Method | Special Protection | Marking Requirements |
|---|---|---|---|
| Profiles/Bars | Wrapped in waterproof paper, bundled in wooden cases or metal racks. | End caps, mitrumizturīgs papīrs. | Shipping mark, specs, svaru, batch no. |
| Sheets/Plates | Wooden pallets, separated by anti-rust paper, steel strapped. | Edge protectors, desiccant. | Lifting marks, fragile marks. |
| Precision Parts | Custom wooden crates, foam positioning, anti-rust treatment. | VCI paper, individual wrapping. | “This Side Up” marks, center of gravity marks. |
11. Global Application Cases
Mūsu 6061 Aluminum Alloy has been successfully used in various international projects:
European Market:
- German Automotive Parts Manufacturer: Structural components for EV battery trays.
- Italian Industrial Equipment Company: High-precision machine tool rails and brackets.
- Dutch Bicycle Manufacturer: Tubing for high-end aluminum bicycle frames.
American Market:
- US Aerospace Tier-2 Supplier: Aircraft interior structural parts.
- Canadian Solar Company: Photovoltaic mounting system structures.
- Brazilian Construction Firm: Curtain wall system profiles.
Asian Market:
- Japanese Electronics Company: Frames for semiconductor equipment.
- Korean Marine Equipment Supplier: Ship structural components.
- Singapore Medical Device Company: Chassis for medical equipment.
Oceania Market:
- Australian Mining Equipment Manufacturer: Lightweight equipment parts.
- New Zealand Fishing Company: Structural parts for fishing vessels.
12. Material Selection and Design Advice
When to Choose 6061 Alumīnija sakausējums:
- Requires a good strength-to-weight ratio.
- Requires good machinability and weldability.
- Requires moderate corrosion resistance.
- Cost-effectiveness is an important consideration.
- Requires surface treatments like anodizing.
When to Consider Other Alloys:
- Need higher strength: Consider 7075 vai 2024.
- Need better corrosion resistance: Consider 5052 vai 5083.
- Need better formability: Consider 3003 vai 1100.
- Need higher temperature performance: Consider 2xxx series.
Design Considerations:
- Recommended minimum bend radius is 1.5-2 times material thickness.
- Strength is reduced in welded areas; consider appropriate reinforcement.
- Ensure proper heat dissipation during machining to avoid overheating material.
- Ensure thorough cleaning and degreasing before anodizing.
We understand that selecting the correct aluminum material is crucial to the success of your product. Alumīnija sakausējums 6061, with its excellent overall performance and cost-effectiveness, is one of the most popular choices in global manufacturing. Papildus tam 6061, we also supply other aluminum alloy series, ieskaitot 5000 un 7000 sērija, to meet diverse application needs.
We Can Provide:
- Detailed Technical Data Sheets (TDS) and Material Safety Data Sheets (MSDS).
- Free samples for your testing and verification.
- Technical consultation for your specific application.
- Competitive FOB/CIF quotations.
- Flexible Minimum Order Quantities (Mokas) and customization services.
For more information, to request samples, or to discuss your specific requirements, please feel free to contact our international sales team. We offer multilingual support to ensure smooth communication and will recommend the most suitable material specifications, temperamenti, and heat treatment processes based on your application.