CW602N

CW602N, a machining brass designed to resist dezincification, excels in applications involving warm, acidic waters. It successfully meets the dezincification test criteria outlined in ISO 6509. When producing hot-stamped components, it’s advisable to opt for C35330 due to its superior hot-working properties. To ensure dezincification resistance, consider a heat treatment after hot working when necessary.

CHEMICAL COMPOSITION
ElementsMin ValueMax Value
Cu61.0063.00
Pb1.702.80
Sn0.10
Fe0.10
As0.020.15
Al0.05
Mn0.10
Ni0.30
Total Others0.20
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO EN12164 (AS PER TEMPER R320)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 6 40 350 150 25 90
Hex (A/F) 5 35 350 150 25 90
Square (A/F) 5 35 350 150 25 90
PHYSICAL PROPERTIES
Melting Point   910°C
Density                                                8.43 g/cm³
Specific Heat  377
Thermal conductivity (20°C) 117 W/m°K
Thermal expansion coefficient (20-200°C)  20.7 x 10-6 per °C
Electrical conductivity 26 % IACS
Electrical Resistivity 0.066 ohm mm²/m
Modulus of Elasticity 106 KN/mm²
FABRICATION PROPERTIES 
Technique Suitability
Hot Working Temperature Range 800-850°C
Hot Formability Very good
Cold Formability Good
Machinability rating (free cutting brass = 100) 75 %
Annealing Temp. Range 450-650°C
Stress Relieving Temp. Range                  250-350°C
Soldering Excellent
Brazing Good
Oxy-acetylene welding                            Not recommended
Gas-shielded arc welding                         Not recommended
Resistance welding                                 Not recommended

CW602N

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