CW601N

DESCRIPTION

CW601N: A ductile alloy with good machinability as well as bending and cold heading properties. Suitable for bicycle spoke nipples.

CHEMICAL COMPOSITION

Elements Min (%) Max (%)
Cu 62.00 63.50
Pb 1.60 2.50
Sn - 0.10
Fe - 0.10
AL - 0.05
Ni - 0.30
Total Others - 0.10
Zn Remainder

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

TYPICAL USES

  • Automotive
  • Builders Hardware
  • Screws
  • Clamps
  • Bolts
  • Rivets