CHEMICAL COMPOSITION
| | Ni% | Si% | Co% | Cu% | other |
| Nominal Composition | | | | Bal. | |
| Min | 2.6 | 0.6 | 0.8 | | |
| Max | 3.4 | 1.2 | 1.2 | | 0.5 |
PHYSICAL PROPERTIES
| Density g/cm3 | 8.82 |
| Conductivity at 20°C %IACS | 50 |
| Elastic Modulus GPa | 130 |
| Poisson's ratio | 0.33 |
| Thermal expansion coefficient 10-6/ K | 17.6 |
MECHANICAL PROPERTIES
| State | Yield strength | Tensile strength | Elongation | Hardness |
| | Mpa | MPa | A50% | HV |
| R690 | ≥680 | 690-830 | ≥6 | ≥200 |
| R770 | ≥750 | 770-900 | ≥4 | ≥220 |
| R840 | ≥810 | 840-970 | ≥1 | ≥240 |
| R920 | ≥880 | 920-1060 | ≥1 | ≥260 |
| R960 | ≥940 | 980-1120 | ≥1 | ≥280 |
Bending performance
Bending thickness: ≤0.5 mm, bending width: 10 mm
| State | 90° R/T | 180° R/T |
| | GW | BW | GW | BW |
| R690 | 0 | 0 | - | - |
| R770 | 0.5 | 0.5 | - | - |
| R840 | 1.0 | 1.0 | - | - |
| R920 | 1.0 | 1.0 | - | - |
| R960 | 3.0 | 3.0 | - | - |
Alloy System | designation | UNS | EN | JIS | GB (China) |
| Cu | TK11000 | C11000 | Cu-ETP | C1100 | T2 |
CuCr/Zr | TK15100 | C15100 | CuZr0.1 | C1510 | TZr0.1 |
| TK18160 | C18160 | CuCr0.5Zr | — | |
| TK18150 | C18150 | CuCr1Zr | — | TCr1-0.15 |
| CuCrSiTi | TK18070 | C18070 | CuCrSiTi | — | TCr0.3-0.2- 0.05 |
| CuNiSnCrTi | TK18090 | — | — | — | |
| CuNiP | TK19000 | C19000 | CuNi1P | — | |
| CuTi | TK19920 | C19920 | — | — | — |
CuFe | TK19210 | C19210 | CuFe0.1P | C1921 | TFe0.1 |
| TK19400 | C19400 | CuFe2P | C1940 | TFe2.5 |
CuNiSi | TK19005 | C19005 | — | — | — |
| TK19010 | C19010 | CuNiSi | — | — |
| TK70260 | C70260 | CuNi2Si | C7026 | BSi2-0.45 |
| TK70250 | C70250 | CuNi3SiMg | C7025 | BSi3.2-0.7 |
| TK70250HS | C70250 | CuNi4SiMg | C7025 | — |
| CuNiCoSi | TK70318 | C70318 | CuNi3CoSi | — | — |
Special Brass | TK42300 | C42300 | CuZn10Sn1NiSi | — | — |
| TK42500 | C42500 | CuSn3Zn9 | — | HSn88-2 |
CuSn / Bronze | TK14415 | C14415 | CuSn0.15 | — | TSn0.12 |
| TK51000 | C51000 | CuSn5 | C5102 | QSn5-0.2 |
| TK51100* | C51100 | CuSn4 | C5111 | QSn4-0.3 |
| TK51900* | C51900 | CuSn6 | C5191 | QSn6-0.2 |
| TK52100* | C52100 | CuSn8 | C5210 | QSn8-0.3 |
Copper-nickel strips, made from cupronickel alloys, are used in
various applications due to their excellent corrosion resistance,
mechanical properties, and thermal conductivity. Here are some key
features and characteristics of copper-nickel strips:
Key Properties
Common Applications
Marine Industry: Used in shipbuilding, heat exchangers, and piping systems due to
their durability in seawater.
Electrical Components: Employed in connectors and terminals where corrosion resistance
and conductivity are essential.
Heat Exchangers: Ideal for cooling systems in various industrial applications.
Fabrication
Copper-nickel strips can be processed through various methods,
including:
- Cutting: Available in different lengths and widths.
- Bending and Forming: Easily shaped for specific applications.
- Welding: Can be welded using appropriate techniques for copper-nickel
alloys.
