C7521锌白铜合金概述 点击进入阿里巴巴店铺
C7521锌白铜是铜-镍-锌三元系的α单相组织合金。锌溶入固溶体，显著地提高了合金的强度、硬度和弹性性能。
合金具有优良的冷和热加工性，优良的耐蚀性、电学性能和高的力学性能。该合金是具有高化学稳定性的重要
结构材料，主要用于制造在潮湿和腐蚀介质中工作的结构件、弹簧、以及电工零件。
C7521锌白铜应用概况
C7521锌白铜合金生产工艺成熟，质量稳定，广泛用于航空、船舶、电力、化工及石油等工业。主要用途有：
精密仪器、仪表零件、耐蚀零件、弹性元件等。
热处理制度 软化退化：700～750℃，空冷。
消除应力退火：250～280℃，空冷。
C7521锌白铜化学成分
| C7521 化学成分 | |||||||
| 元素 | 铜 Cu | 镍钴Ni+Co | 锌 Zn | 铁 Fe | 锰 Mn | 铅 Pb | 杂质 |
| 质量分数/% | 62.0-66.0 | 16.5- 19.5 | 余量 | ≤0.25 | ≤0.50 | ≤0.03 | ≤0.9 |
C7521锌白铜物理性能
| C7521 物理性能 | ||||||
| 密度 | 熔化温度范围 | 热导率 | 比热容 | 电阻率 | 电导率 | 线膨胀系数 |
| g/cm3 | ℃ | λ/(W/m•℃) | J/kg•℃ | μΩ·m | %IACS | a/10-6℃-1 |
| 8.7 | 1080 | 25-35 | 400 | 0.246 | 7 | 16.6（20℃） |
C7521锌白铜力学性能
| C7521 力学性能 | ||||
| 品种 | 状态 | 直径/mm | 抗拉强度MPa | |
| 带材 | M软态 | 0.05-1.20 | ≥343 | |
| 半硬Y2 | 440-568 | |||
| 线材 | M软态 | 0.1-6.0 | ≥345 | |
| 半硬Y2 | 2.0-6.0 | 440-635 | ||
| 硬态Y | 2.0-6.0 | 540-785 | ||
C7521锌白铜
C7521锌白铜is of the copper-nickel-zinc ternary system α Single phase structure alloy. The strength, hardness
and elastic properties of the alloy are significantly improved by zinc dissolving into the solid solution. The alloy has excell
-ent cold and hot workability, excellent corrosion resistance, electrical properties and high mechanical properties. This all
-oy is an important structural material with high chemical stability, and is mainly used for manufacturing structural parts,
springs, and electrical parts working in wet and corrosive media.
C7521 alloy has mature production process and stable quality, and is widely used in aviation, shipbuilding,electric power,
chemical and petroleum industries.
Stress relief annealing: 250~280 ℃, air cooling.
