CW608N

CW608N represents a machining brass that effectively integrates the divergent material attributes of machining and cold working. This alloy has thus gained substantial prominence across diverse industries as the prevailing standard for both machining and cold working applications.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu60.0061.00
Pb1.602.50
Sn0.20
Fe0.20
Al0.05
Ni0.30
Total Others0.20
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO EN12164 (AS PER TEMPER R410)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 2 40 410 230 12
Hex (A/F) 2 35 410 230 12
Square (A/F) 2 35 410 230 12
Rectangle (Thickness) 3 50
PHYSICAL PROPERTIES
Density8.44 g/cm³
Electrical Conductivity % IACS at 68°F24
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F109 W/m.K
Thermal expansion coefficient20.4 10-6/K
Modulus of Elasticity102 Gpa
FABRICATION PROPERTIES
Machinability (CuZn39Pb3 = 100 %)90%
Capacity for being cold workedfair
Capacity for being hot workedexcellent
Resistance welding (butt weld)good
Inert gas shielded arc weldingpoor
Gas weldingPoor
Hard solderingfair
Soft solderingexcellent
Melting range895-900 °C
Hot working650-750 °C
Soft annealing450-650 °C (1–3 hr)
Thermal stress relieving200-300 °C (1-3 hr)

CW608N

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