铝合金棒材
产品描述
上海顶点合金有限公司（Shanghai Vertex Alloy Co., Ltd，简称 Vertex Alloy）供应 4032 铝合金圆棒（AA 4032 / UNS A94032 / EN AW-4032，近似国标 4A11/LD11）。4032 是经典锻造活塞铝合金，硅含量 11.0–13.5%，热膨胀系数低、耐磨性好、高温（250–300°C）强度稳定，广泛用于高性能及涡轮增压发动机锻造活塞、摩托车赛车活塞、空调压缩机斜盘等。T6 状态，直径 8–250mm，执行 ASTM B211 标准，附 EN 10204 3.1 材质证明，并可按图定制活塞毛坯及成品加工件。
尺寸范围
- Diameter Range:8–500 mm
- Length:1,000–6,000 mm or cut-to-length available
- OD±0.02；L+3mm
- Temper: T6
- Custom sizes and cut-to-length services are available upon request
牌号标准
| 标准体系 | 数值 |
|---|---|
| USA (AA) | 4032 / A4032 |
| 🇺🇸 UNS | A94032 |
| Europe (EN) | EN AW-4032 / AlSi12CuNiMg |
| China (GB) | 4A11 (LD11) |
| Typical Spec | ASTM B211 / B221 |
化学成分
| 元素 | 数值 |
|---|---|
| Si | 11.0–13.5 |
| Cu | 0.50–1.3 |
| Mg | 0.50–1.3 |
| Ni | 0.50–1.3 |
| Fe | ≤ 1.0 |
| Mn | ≤ 0.20 |
| Cr | ≤ 0.10 |
| Zn | ≤ 0.25 |
| Ti | ≤ 0.25 |
| Al | Balance |
机械性能
| 性能 | 数值 |
|---|---|
| Tensile Strength | ≥ 380 MPa |
| Yield Strength | ≥ 290 MPa |
| Elongation | ≥ 5% |
| Hardness | ≈ 120 HB |
| Fatigue Strength | ≈ 110 MPa (5×10⁸ cycles) |
| Forging Temperature | 410–470°C |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Item Value Density | - | 2.70 g/cm³ |
| Melting Range | - | 570–580°C |
| Thermal Conductivity | - | 155 W/(m·K) |
| CTE (20–100°C) | - | 19.4 × 10⁻⁶ /K |
| Specific Heat | - | 960 J/(kg·K) |
| Elastic Modulus | - | 79 GPa |
| Electrical Conductivity | - | ≈ 38% IACS |
应用场景
- Automotive：Forged high-performance pistons
- Automotive：Turbocharged engine pistons
- Motorcycle：Racing pistons
- Motorcycle:Two-stroke pistons
- Compressors:AC compressor swash plates
- Compressors:Compressor pistons
- Marine:Outboard engine pistons
- Power Sports:Snowmobile / ATV pistons
- General:Hot-work components
- General:Bearing sleeves