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Formula: Cu 70/Zn 30
Form: Tube
Material: Brass
Commodity: Alloys
Wall Thickness: 0.41mm
Inside Diameter: 2.74mm
Outside Diameter: 3.56mm
Temper: As Drawn
Goodfellow's brass tube (Cu70/Zn30) is a copper-zinc alloy tube with 70% copper and 30% zinc. The tube has high strength and ductility along with excellent corrosion resistance and antimicrobial properties. Brass tubes like this one are commonly used for plumbing, musical instruments, ammunition casings, valves, and fittings. With its range of brass tubes, Goodfellow provides high-quality options for industries requiring strong, corrosion-resistant tubing.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Tube
Outside Diameter =<2mm ±0.05mm
Outside Diameter 2mm - 5mm ±0.1mm
Outside Diameter >5mm ±5%
Wall Thickness ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Hardness - Brinell 65-160
Elongation at break( % ) 65
Modulus of elasticity( GPa ) 100-115
Izod impact strength( J m⁻¹ ) 50-90
Shear strength( MPa ) 200-400
Tensile strength( MPa ) 300-700
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 6.2-7.8
Temperature coefficient( K⁻¹ ) 0.0012-0.0016
Thermal Properties
Element Value
Melting point( C ) 910-965
Thermal conductivity( W m⁻¹ K⁻¹ ) 109-121@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 19-20@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.55

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