| 规格 | ASTM B111，ASME SB111 | 年级 | C70600 |
|---|---|---|---|
| 类型 | 无缝 | 表面： | 酸洗退火，抛光，光亮退火 |
| 非破坏性测试： | 涡流测试 -ASTM E426，静态测试 -ASTM A999，超声波测试 -ASTM E213 | 尺寸标准： | ASTM B16.10 & B16.19 & 定制 |
| 强光 | C70600 Steel Seamless Tube， Condenser Copper Alloy Tube， ASTM B111 Copper Nickel Alloy Tube | ||
ASTM B111 C70600 Copper Nickel Alloy Seamless Tube For Condenser
The ASTM B111 C70600 Copper Nickel Seamless Tube are widely used for marine applications due to their excellent resistance to seawater corrosion， low macrofouling rates， and good fabricability.
Copper Nickel C70600 is also known as Copper Nickel 90/10 because it is made up of 10% nickel or as ASTM B111 and ASME SB111. C70600 is known for its moderate strength， weldability， and formability. The inclusion of controlled quantities of iron and manganese also give the 90/10 alloy an extraordinary resistance to general corrosion and stress cracking， as well as to erosion and impingement due to turbulent water containing air bubbles and silt flowing at high velocities.
Chemical Composition of C70600
| 要素 | 内容 (%) |
|---|---|
| 铜 | 88.7 |
| 铁 | 1.3 |
| 倪 | 10.0 |
C70600 Equivalent
| 标准 | UNS | WERKSTOFF NR. |
| Copper Nickel 90/10 Pipe | C70600 | 2.0872 |
物理特性
| 属性 | 公制 | 帝国 |
|---|---|---|
| 密度 | 8.94 克/立方厘米 | 0.323 磅/英寸3 |
为什么在热交换器中使用铜镍管？
铜镍管的化学成分优异，可在恶劣条件下正常工作。这些管材可以承受不同的压力和温度，这对于热交换器的运行非常重要。铜镍合金管具有出色的疲劳强度和机械性能，能够承受系统中的各种条件。
机械性能
| 属性 | 公制 | 帝国 |
|---|---|---|
| 拉伸强度，极限值 | 303-414 兆帕 | 43900-60000 psi |
| 拉伸强度，屈服强度（取决于回火） | 110-393 兆帕 | 16000-57000 psi |
| 断裂伸长率（单位：254 毫米） | 42.00% | 42.00% |
| 机械加工性能（UNS C36000（易切削黄铜）= 100%） | 20% | 20% |
| 剪切模量 | 52.0 GPa | 7540 ksi |
| 泊松比 | 0.34 | 0.34 |
| 弹性模量 | 140 GPa | 20300 ksi |
Advantages of CuNi Tubes
-Simple alloying system with good weldability
-Excellent ductility and toughness
-Outstanding erosion corrosion performance
-Resistant to uniform and localised corrosion
-No effect of ambient seawater temperatures
-No effect of seawater chlorination
-Resistant to biofouling
-Resistant to stress-corrosion cracking
-Low maintenance costs
