| Alloy Name | ||||||||||||||||||||
| AMW-21 | IS | DIN CEN/TS 13388 | UNS | BS | JIS | KMW | ||||||||||||||
| CuZn5 | CuZn5 | CW500L | C21000 | CZ 125 | C 2100 | CuZn5 | ||||||||||||||
| Chemical Composition | (% By Weight) |
| Cu | 94.096.0% |
| Pb | ¡Ü 0.03% |
| Fe | ¡Ü 0.05% |
| Zn | Reminder % |
| Main Applications | |
| Architecture | Ornamental Trim |
| Consumer | Jewelry,Emblems,Bullet Jackets |
| Electrical | Component for the electrical industryConnectors, Rotor Bars, ACMotors |
| Others | Coins, Token, Medals |
| Physical Properties Typical values in annealed temper at 20°C | ||
| Density | 8.86 | g/cm3 |
| Thermal expansion coefficient −191 .. 16 / - 0 .. 300°C | 17.0/18.0 | 10-6/K/10-6/K |
| Specific heat capacity | 0.380 | J/(g.K) |
| Thermal conductivity | 234 | W/(m.k) |
| Electrical conductivity (1 MS/m = 1m/(0 mm2)) | ;Y 33 | MS/M |
| Electrical conductivity (IACS) | 56.9 | % |
| Thermal coefficient of electrical resistance (0 .. 200 C) | 2.3 | 10-3/K |
| Modulus of elasticity (1GPa = 1 kN/mm2) cold formed | 127 | 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) | 230-280 | < 130 | 35 Min | 75 Max |
| HB (Half Hard) | 270-350 | ¡Y 200 | 12 Min | 75-110 |
| HD (Hard) | ¡Y 340 | ¡Y 280 | 4 Min | ¡Y 110 |
Cold formability
Hot formability
Soldering
Brazing
Oxyacetylene welding
Gas shielded arc welding
Resistance Welding
Machinability
Excellent
Good
Excellent
Excellent
Good
Good
Not Recommended
Not Recommended