อลูมิเนียมผสมแผ่น/เพลท
ภาพรวม
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.
คำอธิบาย (อังกฤษ)
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.
ช่วงขนาด
- 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)
ข้อกำหนดเกรด
| ระบบ | ค่า |
|---|---|
| 🇪🇺 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 |
องค์ประกอบทางเคมี
| ธาตุ | ค่า |
|---|---|
| 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 |
คุณสมบัติเชิงกล
| productCenter.property | ค่า |
|---|---|
| Tensile Strength Rm | ≥ 380 MPa |
| 0.2% Yield Strength | ≥ 250 MPa |
| Elongation A (50 mm) | ≥ 10% |
คุณสมบัติทางกายภาพ
| คุณสมบัติ | หน่วย | ค่า |
|---|---|---|
| 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 |
การใช้งาน
- Aerospace
- Defense
- Mechanical Engineering
- Mold Making
- Automotive
- Transportation
- General Engineering
- Military