CW617N — CuZn40Pb2 alloy
CW617N — CZ122 is an alloy of nickel-plated brass. Material mainly consists of copper (58%), zinc (30%), and lead additive (2%), which is evenly distributed in microstructure. Chemical formula of alloy is CuZn40Pb2. This alloy is made according to EN 12165.
Percentage composition according to EN 12165
|Content, %||58||≤ 1,87||≤ 0,18||≤ 0,4||≤ 0,15||≤ 0,12||≤ 0,2||≤ 0,8||the rest|
Physical characteristics of brass of CW617N grade:
Melting point is 895 °C;
Density — 8,4 g/cm3;
Specific heat is 380 J/kg K;
Heat conductivity — (RT) is 117 V / m ° К;
Coefficient of thermal expansion is (20−200°C) 20×10−6-;
Electrical conductivity is 27% IACS;
Electrical resistance is 0.064 Ohm-mm2/m.
Range of working temperatures is 650−775°C;
Formability in hot state is perfect.
Formability in cold state is bad.
Annealing is possible at a temperature range of 450−600°C.
Release of stress is performed at a temperature range of 250−350°C.
This alloy demonstrates perfect availability to hot working. It is often used in manufacture of complex details. Analogous material for flat products is CW608N / CZ120.
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