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Home /CuZn 40

Alloy Name
UNS C28000
IS/ISO CuZn40
DIN CEN/TS 13388 CW617N

Cu-Zn40

MDI offers a wide range of brass rolled products in the form of foils,Strips,Sheet and Circles meet our customers’ needs for industrial Manufacturing. This alloy is as per RoHS specification.

Chemical Composition Weight percentage Main Applications
Cu 58.50-61.50 % Industrial : Locks, Metal Fittings, Keys.
Pb 0.30Max Architecture : Decoration, Hardware,Door Frames, Large Architectural Trim,Large sheet.
Fe 0.10 % Max Physical Properties Typical values in annealed temper at 20 °C
Zn Reminder %
Total Impurity 0.75 % Max

60/40 Characteristics

CuZn40 is an economical brass alloy with high Zinc content, good forming properties and medium strength.

Physical Properties Typical values in annealed temper at 20 °C
Density 8.41 g/cm3
Thermal expansion coefficient -191 .. 16 20.3 10-6/K
Specific heat capacity - 0 .. 300°C 21.0 10-6/K
Thermal conductivity 0.375 J/(g•K)
Electrical conductivity (1 MS/m = 1 m/(O mm²)) 117 W/(m•K)
Electrical conductivity (IACS) 15 MS/m %
Thermal coefficient of electrical resistance (0 .. 200 C) 26 10-3/K
Modulus of elasticity ( 1 GPa = 1 kN/mm²) cold formed 102 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) 275 Min ..... 35 Min 85 Max
HB (half Hard) 420 Min ..... 15 Min 100
HD (Half Hard) 490 Min ..... 5min 125 min
HE (Extra Hard) 525 Min ..... ..... 165 min


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