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Formula: Cu 63/Zn 37
Form: Tube
Material: Copper/Zinc (Brass)
Commodity: Alloys
Brass Tube (Cu63/Zn37) delivers a balance of strength, corrosion resistance, and ease of fabrication, stemming from its 63% copper and 37% zinc composition. This alloy maintains structural integrity under mechanical stress and in corrosive environments, making it ideal for fluid transport systems, heat exchangers, and architectural frameworks. It is extensively used in marine engineering, plumbing, and instrumentation, where dimensional precision and durability are essential. Specific applications include condenser tubing, decorative structural elements, and precision fittings in measurement devices. Research on Cu63/Zn37 brass tubes often focuses on improving dezincification resistance, optimizing thermal conduction, and enhancing surface passivation for extended service life in aggressive environments. These properties ensure that this material remains a standard choice for engineers and scientists developing reliable components for both traditional and high-performance systems.
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 | 65-136 |
| Elongation at break( % ) | 55 |
| Modulus of elasticity( GPa ) | 95-110 |
| Shear strength( MPa ) | 280-310 |
| Tensile strength( MPa ) | 330-500 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 6.2-6.6 |
| Temperature coefficient( K⁻¹ ) | 0.0016-0.0017 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 900-920 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 125@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 19-20.5@20-100°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 8.45 |
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