| Alloy Name | |||||||||||||||||
| AMW-24 | IS | ISO | UNS | JIS | KMW | ||||||||||||
| CuZn20 | CuZn20 | CuZn20 | C24000 | C2400 | CuZn20 | ||||||||||||
| Chemical Composition | (% By Weight) |
| Cu | 78.5 81.5% |
| Pb | < 0.05 % |
| Fe | < 0.05 % |
| Zn | Reminder % |
| Total Impurity | 0.15% |
| Main Applications | |
| Electrical | Battery Caps, Rotor Bars, AC Motors |
| Industrial | Pump lines, Welding Wire, Flexible Hose |
| Consumers | Clock Dails, Musical Instrument Parts |
| Architecture | Ornamental Components |
| Physical Properties Typical values in annealed temper at 20 °C | ||
| Density | 8.67 | g/cm3 |
| Thermal expansion coefficient −191 .. 16 / - 0 .. 300°C | 9.0/18.8 | 10-6/K/10-6/K |
| Specific heat capacity | 0.380 | J/(g.K) |
| Thermal conductivity | 142 | W/(m.k) |
| Electrical conductivity (1 MS/m = 1m/(0 mm2)) | >=19 | MS/M |
| Electrical conductivity (IACS) | 32.8 | % |
| Thermal coefficient of electrical resistance (0 .. 200 C) | 1.5 | 10-3/K |
| Modulus of elasticity (1GPa = 1 kN/mm2) cold formed | 99.... 115 / 119 | 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) | 265 Min | < 150 | 40 Min | 80 Max |
| HB (Half Hard) | 340 Min | > 200 | 10 Min | 95 Min |
| HD (Hard) | 400 Min | > 320 | 5 Min | 120 Min |
Cold Forming Properties Max. 90% between annealings
Hot Forming Properties at 750 .. 870°C
Hot Forming Properties at 750 .. 870°C
Electroplating Properties
Hot Tinning Properties
Soft Soldering, Brazing
Resistance Welding
Gas Shielded Arc Welding
Excellent
Good
Less Suitable
Excellent
Excellent
Excellent
Good
Fair