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Formula: Cu 70/Zn 30
Form: Wire
Material: Copper/Zinc (Brass)
Commodity: Alloys
Temper:
As Drawn
Brass Spooled Wire (Cu70/Zn30) combines high electrical conductivity with superior corrosion resistance and good tensile strength, making it suitable for both functional and decorative uses. The 70% copper and 30% zinc composition provides a warmer color tone while enhancing workability for intricate designs and precision winding. This alloy is widely applied in electronics for signal and grounding conductors, in mechanical engineering for spring and connector fabrication, and in decorative arts for fine metalwork. Specific uses include precision coil windings in instrumentation, corrosion-resistant springs, and aesthetically appealing yet durable braids. Research on Cu70/Zn30 wire focuses on electrochemical stability in alkaline environments, mechanical fatigue resistance, and coating techniques to enhance service life in challenging conditions. Its combination of formability, stability, and performance makes it indispensable for industries that demand reliable conductors and robust mechanical components.
Tolerances
Wire
| Diameter | ±10% | |
|---|---|---|
| Length | +5% / -1% |
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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Wollaston Platinum/Rhodium Alloy Spooled Wire (Pt90/Rh10) Grade: Wollaston
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Zinc Spooled Wire Formula: Zn
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Yttrium Spooled Wire Formula: Y
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Wollaston Platinum Spooled Wire Grade: Wollaston
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Zirconium Spooled Wire Formula: Zr
Percentage Purity: 99.2%
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Type: Hafnium > 0.2%
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UOM Code: 007-857-52
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