C95800 Composition
Alloy C95800 comprises 78-82% copper, 10-12% aluminium, 3-5% nickel, 2.5% iron, and 1.5% zinc. This combination offers good resistance to erosion and corrosion, high strength, high flexibility, and good thermal and electrical conductivity.
| Element | Content (%) |
|---|---|
| Cu, Copper | 79.0 |
| Al, Aluminium/Aluminum | 8.50-9.50 |
| Ni, Nickel | 3.50-4.50 |
| Mn, Manganese | 0.80-1.50 |
| Fe, Iron | 0.030 |
C95800 Physical Properties
Aluminium bronze is a dense and tough alloy. Its physical properties include:
A density of 7.8 g/cm3.
A melting point of 1005-1025°C.
At room temperature, a thermal conductivity of 37 W/(m·K).
It is also non-magnetic, making it ideal for magnetic-sensitive applications such as MRI machines.
C95800 Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (at 20-300°C/68-572°F) | 16.2 µm/m°C | 9.00 µin/in°F |
| Thermal conductivity (at 20°C/68°F) | 36.0 W/mK | 250 BTU in/hr.ft².°F |
C95800 Equivalents
ASTM B148
ASTM B271
ASTM B30
ASTM B505
ASTM B763
ASTM B806
MIL B-24480
QQ C390
SAE J461
SAE J462
C95800 Uses
Aluminium bronze is a versatile alloy with various applications. It is widely used in the construction of marine hardware, such as propellers, shipbuilding, and offshore drilling equipment. The alloy is also used in high-stress applications, including hydraulic systems and aircraft parts.
C95800 Hardness
Aluminium bronze has excellent wear resistance and hardness due to its aluminium content. Its hardness ranges from 200 to 230 Brinell hardness number (BHN), making it ideal for high-load and high-abrasion applications.
C95800 Heat Treatment
Aluminium bronze is a heat-treatable alloy which can be hardened by quenching or tempering. The quenching process involves heating the alloy to 800-850°C and cooling it in oil. The tempering process consists of reheating the alloy to 450-600°C and slowly cooling it in air. The heat treatment process improves the alloy's hardness and tensile strength.
C95800 Welding
Aluminium bronze can be welded using various welding techniques, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and manual metal arc welding (MMAW). However, the alloy must be preheated before welding to prevent cracks and ensure a strong weld.
C95800 Corrosion Resistant
Aluminium bronze is known for its excellent corrosion resistance. It is resistant to seawater, atmospheric corrosion, and most acids, making it ideal for use in marine and chemical environments. The alloy's corrosion resistance is due to its aluminium content, which forms a protective oxide layer on its surface.
