CW601N

CW601N is a ductile alloy prized for its excellent machinability, as well as its ability to be bent and cold headed with ease. This makes it a highly suitable choice, especially for crafting bicycle spoke nipples.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu62.0063.50
Pb1.602.50
Sn0.10
Fe0.10
AL0.05
Ni0.30
Total Others0.10
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO EN12164 CW601N (AS PER TEMPER 400)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 2 20 400 200 12
Hex (A/F) 2 25 400 200 12
Square (A/F) 2 25 400 200 12
PHYSICAL PROPERTIES
Density (g/cm³) 8.46
Electrical Conductivity % IACS at 68°F 26
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F 67
Specific Heat Capacity (kJ/kgK) 0.377
Modulus of Elasticity in (GPa) 105
Coefficient of thermal expansion at 20 ˚C (10-6/K) 20.4
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 885 – 910 °C
Hot working 700 – 800 °C
Soft annealing 450 – 650 °C
Thermal stress relieving 200 – 300 °C
FABRICATION PROPERTIES 
Machinability 85%
Cold formability good
Hot formability good
Resistance welding fair
Oxyacetylene welding not recommended
Inert gas shield arc welding not recommended
Brazing fair
Soldering Excellent

CW601N

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