| Alloy Name | ||||||||||||||||||||
| UNS | DIN CEN/TS 13388 | KMW | ||||||||||||||||||
| C18661 | 2.0205 | CuZn0.5 | ||||||||||||||||||
| Chemical Composition | (% By Weight) |
| Zn | 0.1...1.0 % |
| P | < 0.02% |
| Other | < 0.10% |
| Cu | Reminder % |
| Main Applications | |
| Automotive | Starter, Switches and Relays, Contacts, Connectors, Terminals |
| Industrial | Metal Goods, Apparatus and Construction Industry |
| Electrical | Leadframes, Cables for Telecommunication, Antenna, Data Cables etc. |
| Physical Properties Typical values in annealed temper at 20°C | ||
| Density | 8.92 | g/cm3 |
| Thermal expansion coefficient −191 .. 16 / - 0 .. 300°C | 17.7 | 10-6/K/10-6/K |
| Specific heat capacity | 0.386 | J/(g.K) |
| Thermal conductivity | 350 | W/(m.k) |
| Electrical conductivity (1 MS/m = 1m/(0 mm2)) | 46...51 | MS/M |
| Electrical conductivity (IACS) | 79...88 | % |
| Thermal coefficient of electrical resistance (0 .. 200 C) | 3.2 | 10-3/K |
| Modulus of elasticity (1GPa = 1 kN/mm2) cold formed | 125 | GPa / Gpa |
| Mechanical Properties (EN 1652) | ||||
| Temper | Tensile Strength Rm MPa (N/mm2) |
Yield Strength Rp0.2 MPa (N/mm2) |
Elongation Minimum A50mm % | Hardness HV |
| O (SOFT) | 210 | < 140 | 35 Min | 65 Max |
| HB (Half Hard) | 250 | 10 Min | 70 to 95 | |
| HD (Hard) | 290 | ¡Y 250 | 4 Min | 90 Min |
Cold Forming Properties Max. 95% between annealings
Hot Forming Properties at 800...900¡ã C
Machinablity (Rating 25)
Hot tinning Properties
Soft Soldering
Excellent
Excellent
Fair
Good
Good