| 特徵 | 鋁青銅 | 錫青銅 |
|---|---|---|
| 作品 | ||
| Main Alloying Element | Aluminum (5-12%) | Tin (5-25%) |
| Other Common Elements | Iron, Nickel, Manganese, Silicon | Phosphorus, Lead, Zinc |
| Typical Grades | C95200 (Cu-9Al-2Fe) C95400 (Cu-11Al-4Fe) C95500 (Cu-11Al-4Ni-4Fe) | C90700 (Cu-10Sn) C93200 (Cu-7Sn-7Pb-2Zn) C52100 (Cu-8Sn-0.3P) |
| 物理性質 | ||
| 顏色 | Golden to reddish-gold | Reddish to pale yellow |
| 密度 | 7.7-8.1 g/cm³ | 8.7-8.9 g/cm³ |
| 熔點 | 1030-1080°C (1886-1976°F) | 830-1000°C (1526-1832°F) |
| 導熱係數 | 30-50 W/m·K | 50-70 W/m·K |
| 電導率 | 10-18% IACS | 15-25% IACS |
| 機械性能 | ||
| 抗拉強度 | 550-1200 MPa | 220-550 MPa |
| 硬度 | 140-280 Brinell | 60-180 Brinell |
| 延展性 | 5-20% elongation | 10-30% elongation |
| 耐磨性 | 優秀的 | 好的 |
| 疲勞強度 | 更高 | Good, but lower than aluminum bronze |
| 耐腐蝕性能 | ||
| Seawater Environment | 優秀的 | Good, but less than aluminum bronze |
| Freshwater Environment | 優秀的 | 優秀的 |
| Atmospheric Environment | 優秀的 | 優秀的 |
| 侵蝕腐蝕 | High resistance | Good resistance |
| 應力腐蝕開裂 | High resistance | Moderate resistance |
| 製造性能 | ||
| Castability | 好的 | 優秀的 |
| 可加工性 | Good, but more challenging | Excellent, especially leaded varieties |
| 可焊性 | 好的 | Fair to poor |
| 成型性 | Good, especially at elevated temperatures | Excellent, particularly for cold working |
| 應用 | ||
| 海洋工業 | Propellers, pump impellers, valve stems | 軸承、襯套 |
| 航天 | 起落架組件、襯套 | Less common |
| 油和氣 | Drilling components, subsea equipment | 軸承、齒輪 |
| 電氣 | Non-sparking tools, switchgear components | Electrical contacts, springs |
| 通用工程 | Gears, bearings in harsh environments | Gears, bearings in less severe conditions |
| Economic Factors | ||
| 成本 | Generally higher | 一般較低 |
| 可用性 | Less common | More widely available |
| Special Properties | ||
| 無火花 | 優秀的 | 好的 |
| Sound Damping | 緩和 | Excellent (used in musical instruments) |
| High Temperature Performance | Better | Less suitable for high temperatures |
This table provides a comprehensive comparison of the key characteristics, properties, and applications of Aluminum Bronze and Tin Bronze, highlighting their strengths and differences across various aspects.