In this blog post, we will closely examine what Aluminum Nickel Bronze UNS C62300 is, its composition, mechanical and physical properties, uses, heat treatment, machining, and welding techniques.
What is Aluminium Bronze UNS C62300?
Aluminum Nickel Bronze UNS C62300 is a copper-based alloy known for its excellent mechanical and physical properties. It is widely used in marine, aerospace, and oil and gas industries thanks to its high strength, corrosion resistance, and durability.
C62300 Composition
Aluminium Nickel Bronze UNS C62300 comprises 78% copper, 10% aluminium, and 5% nickel, with other elements such as iron, manganese, and silicon remaining. The nickel content provides high corrosion resistance, while aluminium improves strength, hardness, and wear resistance.
| Element | Content (%) |
|---|---|
| Copper, Cu | 82.2-89.5 |
| Aluminium, Al | 8.5-11.0 |
| Iron, Fe | 2.0-4.0 |
| Manganese, Mn | ≤0.6 |
| Tin, Sn | ≤0.5 |
| Silicon, Sn | ≤0.25 |
| Other | ≤0.5 |
C62300 Mechanical Properties
One of the main benefits of Aluminium Nickel Bronze UNS C62300 is its high strength, with a tensile strength of 120,000 psi and yield strength of 70,000 psi. It also has excellent wear resistance, ideal for bearings, gears, and bushings.
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell B | 89 | 89 |
| Tensile strength | 605 MPa | 87700 psi |
| Yield strength | 305 MPa | 44200 psi |
| Elongation at break ( in 50 mm, 15% reduction in area) | 15% | 15% |
| Elastic modulus | 117 GPa | 17000 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Charpy impact (V-notch) | 25.0-40.0 J | 18.4-29.5 ft-lb |
| Izod impact | 43.0-47.0 J | 31.7-34.7 ft-lb |
| Fatigue strength (@# of cycles 1.00e+8, reverse bending) | 200 MPa | 29000 psi |
| Machinability (based on 100 machinability for UNS C360000) | 50 | 50 |
| Shear modulus | 44 GPa | 6380 ksi |
C62300 Physical Properties
Aluminum Nickel Bronze UNS C62300 has a density of 0.276 lb/in³ and a melting point of around 1,875°F. It has a low coefficient of thermal expansion, high thermal conductivity, and good electrical conductivity.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.65 g/cc | 0.276 lb/in³ |
| Melting point | 1041°C | 1905°C |
C62300 Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@ 20-300°C/68-572°F) | 16.2 µm/m°C | 9.00 µin/in°F |
| Thermal conductivity (@ 20°C/68°F) | 54.4 W/mK | 378 BTU in/hr.ft².°F |
C62300 Equivalents
- ASME SB150
- ASTM B124
- ASTM B150
- ASTM B283
- MIL B-16166
- SAE J461
- SAE J463
C62300 Uses
Due to its impressive mechanical and physical properties, Aluminium Nickel Bronze UNS C62300 is commonly used in marine and aerospace applications, such as propellers, clutch discs, and heat exchangers. It is also used in the oil and gas industry for valve components, springs, and pump gears.
C62300 Corrosion Resistance
Aluminum Nickel Bronze UNS C62300 has excellent corrosion resistance in seawater, brine, and other harsh environments. It is also resistant to erosion and cavitation damage, making it a perfect choice for marine and offshore applications.
C62300 Heat Treatment
Aluminium Nickel Bronze UNS C62300 can be heat-treated to increase strength and hardness. The most common heat treatment process is precipitation hardening, which involves heating the alloy to a temperature of around 750°F for several hours before cooling it in water.
C62300 Machining
Aluminum Nickel Bronze UNS C62300 is generally easy to machine due to its good machinability rating. However, using sharp tools and plenty of coolant is essential to prevent excessive tool wear and heat buildup.
C62300 Welding
Aluminium Nickel Bronze UNS C62300 can be welded using all standard welding techniques, such as TIG, MIG, and stick welding. However, using a filler metal compatible with the alloy is important to avoid cracking or creating weak points in the weld.
Conclusion:
Aluminum Nickel Bronze UNS C62300 is a highly versatile alloy with excellent mechanical and physical properties. It is widely used in industries where high strength, wear, and corrosion resistance are essential, such as marine, aerospace, and oil and gas. With its outstanding properties, heat treatment and welding capabilities, Aluminum Nickel Bronze UNS C62300 is a top choice for many demanding applications.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
