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
ElementsMin (%)Max (%)
Cu61.0062.00
Pb0.801.60
Fe0.20
Sn0.20
Ni0.30
Al0.05
Total Others0.50
ZnRemainder
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

CW605N

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