铝合金板材
概述
2017A is a heat-treatable Al-Cu-Mg-Mn (2000-series) alloy, commonly known as Duralumin. It is the European variant (EN designation) of the original 2017 alloy. The T451 temper means the sheet has been solution heat treated, stress relieved by stretching (1–3% permanent set), then naturally aged — reducing residual quenching stresses while maintaining T4-level strength.
描述（英文）
2017A is a heat-treatable Al-Cu-Mg-Mn (2000-series) alloy, commonly known as Duralumin. It is the European variant (EN designation) of the original 2017 alloy. The T451 temper means the sheet has been solution heat treated, stress relieved by stretching (1–3% permanent set), then naturally aged — reducing residual quenching stresses while maintaining T4-level strength.
尺寸范围
- Thickness:0.5 mm – 6.35 mm (0.020" – 0.250")
- Width:500 mm – 2,000 mm (20" – 80")
- Length:1,000 mm – 4,000 mm (40" – 157")
- Common stock sizes:1,000 × 2,000 mm · 1,220 × 2,440 mm (4' × 8') · 1,250 × 2,500 mm · 1,500 × 3,000 mm
- Cladding:Alclad 2017A available (pure Al cladding for corrosion protection)
牌号标准
| 标准体系 | 数值 |
|---|---|
| 🇪🇺 EN | EN AW-2017A |
| 🇩🇪 DIN | 3.1325 (AlCu4MgSi(A)) |
| 🇺🇸 UNS | A92017 |
| AA | 2017 (approximate; 2017A is the tighter-composition European variant) |
| 🇯🇵 JIS | A2017 |
| 🇨🇳 GB | 2A11 (old: LY11) — closest Chinese equivalent |
| 🇷🇺 GOST | D1 |
| AFNOR | A-U4G |
化学成分
| 元素 | 数值 |
|---|---|
| Cu | 3.5 – 4.5 |
| Mg | 0.4 – 1.0 |
| Mn | 0.4 – 1.0 |
| Si | 0.2 – 0.8 |
| Fe | ≤ 0.7 |
| Zn | ≤ 0.25 |
| Ti | ≤ 0.15 |
| Other (each) | ≤ 0.05 |
| Other (total) | ≤ 0.15 |
| Aluminum (Al) | Balance |
机械性能
| productCenter.property | 数值 |
|---|---|
| Tensile Strength Rm | ≥ 380 MPa |
| 0.2% Yield Strength | ≥ 250 MPa |
| Elongation A (50 mm) | ≥ 10% |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | g/cm³ | 2.79 g/cm³ (0.101 lb/in³) |
| Melting Point Range | °C | 510 – 640 °C (950 – 1,185 °F) |
| Modulus of Elasticity | GPa | 74 GPa (10.7 × 10⁶ psi) |
| Shear Modulus | - | 28 GPa |
| Poisson's Ratio | - | 0.33 |
| Thermal Conductivity (20°C) | W/m·K | 130 – 160 W/(m·K) (varies with temper) |
| Electrical Conductivity | - | 30 – 34% IACS (T4/T451) |
| CTE (20–100°C) | - | 23.0 ppm/°C (12.8 ppm/°F) |
| Specific Heat (20°C) | J/kg·K | 0.88 J/(g·K) |
| Electrical Resistivity | μΩ·cm | ~5.0 μΩ·cm at 20°C |
| Magnetism | - | Non-magnetic |
应用场景
- Aerospace
- Defense
- Mechanical Engineering
- Mold Making
- Automotive
- Transportation
- General Engineering
- Military