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Brass ( Cu70/Zn30 )

Material Information

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Common Brand Names:
Boltomet 570®, Cartridge Brass, IMI 276®, MS 72
 
 

   

Electrical Properties

Electrical resistivity ( µOhmcm ) 6.2-7.8
Temperature coefficient ( K-1 ) 0.0012-0.0016

Mechanical Properties

Elongation at break ( % ) <65
Hardness - Brinell 65-160
Izod impact strength ( J m-1 ) 50-90
Modulus of elasticity ( GPa ) 100-115
Shear strength ( MPa ) 200-400
Tensile strength ( MPa ) 300-700

Physical Properties

Density ( g cm-3 ) 8.55
Melting point ( C ) 910-965

Thermal Properties

Coefficient of thermal expansion @20-100C ( x10-6 K-1 ) 19.0-20.0
Thermal conductivity @23C ( W m-1 K-1 ) 109-121

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