KEI-CuZn15

Krishna Engineering Industries


Alloy Name
AMW-23 CuZn15
IS CuZn15
ISO CuZn15
ASTM C23000
JIS C2300
This alloy is as per RoHS Specification



85/15 Characteristics

CuZn15 is popularly known as Red Brass and has excellent deep drawing, cold forming properties. This alloy has a higher strength than pure copper. CuZn15 has good welding and brazing properties as well as a good corrosion resistance and is not fragile to stress corrosion and dezincification.


Chemical Composition Weight percentage
Cu 84.0 - 86.0 %
Pb 0.02 %
Fe 0.05 %
Zn Remainder %
Total Impurities 0.13 %

Main Applications
Consumers :

Sliders & Pullers for Zippers & Fasteners, Fashion Jewellery ,watch industry

Industrial :

Condenser Tubes, Pickling crates, Heat Exchangers, Flexible Metal House, fire


Physical Properties Typical values in annealed temper at 20 °C
Density 8.75 g/cm3
Thermal expansion coefficient -191 .. 16 9.0 10-6/K
Specific heat capacity - 0 .. 300°C 18.5 10-6/K
Thermal conductivity 0.380 J/(g•K)
Electrical conductivity (1 MS/m = 1 m/(O mm²) 159 W/(m•K)
Electrical conductivity (IACS) 21 MS/m %
Thermal coefficient of electrical resistance (0 .. 200 C) 36 10-3/K
Modulus of elasticity ( 1 GPa = 1 kN/mm²) cold formed 99 - 115 GPA

Mechanical Properties (EN 1652)
Temper Tensile Strength
Rm
MPa(N/mm2)
Yield Strength
Rp0.2
MPa(N/mm2)
Elongation
A50mm %
Hardness
HV
O (SOFT) 245 Min 170 35 Min 75 Max
HB (half Hard) 325 min 250 7 min 95 max
HD (Hard) 370 min 300 3 min 110 min