Description (English)
Shanghai Vertex Alloy Co., Ltd (Vertex Alloy) supplies 6063 aluminum alloy sheet (UNS A96063, EN AW-6063 AlMg0.7Si, ISO AlMg0.7Si; current GB/T 3190-2020 uses "6063", old Chinese designation "LD31" is deprecated). 6063 is an Al-Mg-Si series heat-treatable alloy with nominal 0.45–0.90% Mg and 0.20–0.60% Si — the architectural benchmark. It extrudes into complex thin-wall sections with an excellent surface finish, has very good atmospheric corrosion resistance, and is the premium choice for anodizing: clear, champagne, bronze and black Class I finishes are routine. Sheet is supplied in O / T4 / T5 / T6 / T651 tempers per ASTM B209 / EN 485-2 / AMS QQ-A-250/11 / AMS 4156, thicknesses 0.5–200 mm, widths up to 2000 mm and lengths up to 6000 mm. Typical T6 properties are tensile ≥ 205 MPa, yield ≥ 170 MPa, elongation ≥ 10%, hardness ~73 HB. Compared with 6061, 6063 trades some strength for better surface and anodizing response; compared with 5083, better formability but lower marine performance; compared with 2024/7075, far better corrosion resistance and weldability at much lower strength. EN 10204 3.1 certificates are standard; cut-to-size plates, anodized sheet and CNC-machined parts available on request. Typical applications: architectural façades, window/door frames, curtain walls, roof and siding panels, busbars and heat sinks, furniture and decorative trim, lightweight structural components. Contact us for the latest stock and pricing.
Size Range
- 0.5–200 mm (sheet 0.5–6 mm; plate 6–200 mm)
Grade Specification
| System | Value |
|---|---|
| 🇺🇸 UNS | A96063 |
| ISO / EN (numerical) | EN AW-6063 |
| ASTM / AMS | ASTM B209, AMS QQ-A-250/11, AMS 4156 |
| 🇯🇵 JIS | A6063 |
| 🇨🇳 GB | 6063 (current GB/T 3190-2020); old designation "LD31" is deprecated |
| 🇩🇪 DIN | AlMgSi0.5 / 3.3206 |
Chemical Composition
| Element | Value |
|---|---|
| Si | 0.20 – 0.60 |
| Fe | ≤ 0.35 |
| Cu | ≤ 0.10 |
| Mn | ≤ 0.10 |
| Mg | 0.45 – 0.90 |
| Cr | ≤ 0.10 |
| Zn | ≤ 0.10 |
| Ti | ≤ 0.10 |
| Others, each | ≤ 0.05 |
| Others, total | ≤ 0.15 |
| Al | Remainder (97.5 – 99.4) |
Mechanical Properties
| Property | Value |
|---|---|
| O (Annealed)Tensile Strength (MPa) | 110 – 150 |
| O (Annealed)Yield 0.2% (MPa) | 55 – 90 |
| O (Annealed) Elongation (%) | ≥ 22 |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | - | 2.69 – 2.70 g/cm³ (0.097 lb/in³) |
| Elastic Modulus (20°C) | - | ~ 69 GPa (10,000 ksi) |
| Mean CTE (20–100°C) | - | 23.4 × 10⁻⁶ /K |
| Melting Range | - | ~ 616 – 655 °C (1140 – 1210 °F) |
| Specific Heat | - | ~ 900 J/kg·K |
| Thermal Conductivity (T6) | - | ~ 200 W/m·K |
| Electrical Conductivity (T6) | - | ~ 45–53 % IACS |
| Solution Treatment | - | ~ 520–540 °C, water quench |
| Artificial Aging (T6) | - | ~ 175–185 °C for 6–10 h |
| Anodizing Suitability | - | Excellent (Class I architectural ~25 µm; decorative 10–18 µm) |
Applications
- Architecture & Construction
- Anodized Products
- Electrical & Thermal
- Automotive & Transport
- Furniture & Display
- Industrial & Light Structural
- Solar / Energy
- Marine (interior)