CW605N
CW605N is a ductile alloy known for its impressive machinability and its capability to be bent and cold-headed with ease. These characteristics make it an ideal choice, particularly for crafting bicycle spoke nipples.
CHEMICAL COMPOSITION
Elements | Min (%) | Max (%) |
Cu | 61.00 | 62.00 |
Pb | 0.80 | 1.60 |
Fe | – | 0.20 |
Sn | – | 0.20 |
Ni | – | 0.30 |
Al | – | 0.05 |
Total Others | – | 0.50 |
Zn | Remainder |
MECHANICAL PROPERTIES ACCORDING TO IS 319 GR III (AS PER TEMPER HB)
Range (mm) | From | To | UTS Min (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
Round (Dia) | 1.5 | 75 | 340 | 160 | 25 | 90 | 140 |
Hex (A/F) | 3 | 70 | 340 | 160 | 25 | 90 | 140 |
Square (A/F) | 3 | 60 | 340 | 160 | 25 | 90 | 140 |
PHYSICAL PROPERTIES | |
Density | 8.46 g/cm3 |
Melting Point | 910°C |
Specific heat cap at 20˚C | 0.377 (kj/kgK) |
Electrical conductivity | 14.7 (MS/m) |
Modulus of Elasticity in (GPa) | 105 (GPa) |
Coef of therm exp at 20˚C | 20.4 (10-6 /K) |
Thermal Conductivity | 116 W/m.K |
FABRICATION PROPERTIES | |
Technique | Suitability |
Machinability (CuZn39Pb3 = 100 %) | 80% |
Capacity for being cold worked | poor |
Capacity for being hot worked | Fair |
Suitability for soldering | Excellent |
Suitability for Brazing | Good |