| Alloy Name | |||||||||||||||||
| AMW-25 | IS/ISO | DIN CEN/TS 13388 | UNS | JIS | KMW | ||||||||||||
| CuZn30 | CuZn30 | CW505L | C26000 | C2600 | CuZn30 | ||||||||||||
| Chemical Composition | (% By Weight) |
| Cu | 68.5-71.5% |
| Pb | |
| Fe | ¡Ü 0.05% |
| Zn | Reminder % |
| Total Impurity | 0.15% |
| Main Applications | |
| Electrical | Terminal Connectors, Flashlight Shells, Lamp Fixtures, Reflectors, Shells |
| Consumer | Snaps, Chain Links, Watch Parts, Costume Jewellery, Buttons |
| Building Hardware | Locks, Push Plates, Finish Hardware, Door Knobs. |
| Physical Properties Typical values in annealed temper at 20 °C | ||
| Density | 8.53 | g/cm3 |
| Thermal expansion coefficient −191 .. 16 / - 0 .. 300°C | 9.0 /19.7 | 10-6/K/10-6/K |
| Specific heat capacity | 0.377 | J/(g.K) |
| Thermal conductivity | 126 | W/(m.k) |
| Electrical conductivity (1 MS/m = 1m/(0 mm2)) | Ý 16 | MS/M |
| Electrical conductivity (IACS) | 28 | % |
| Thermal coefficient of electrical resistance (0 .. 200 C) | 1.5 | 10-3/K |
| Modulus of elasticity (1GPa = 1 kN/mm2) cold formed | 99....115 / 115 | 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) | 280 Min | < 160 | 50 Min | 80 Max |
| HA (quarter Hard) | 325 Min | iÝ 170 | 35 Min | 75 Min |
| HB (Half Hard) | 325 Min | iÝ 200 | 20 Min | 100 Min |
| HD (Hard) | 415 Min | iÝ 260 | 5 Min | 125 Min |
| HE (extra Hard) | 522 Min | iÝ 400 | 165 Min | |
Cold formability
Hot formability
Soldering
Brazing
Oxyacetylene welding
Gas shielded arc welding
Resistance welding
Machinability
Excellent
Fair
Excellent
Excellent
Good
Good
Fair
Fair