Aluminium bronze UNS C95400 is a popular metal alloy that offers a range of advantages over other copper-based alloys. It is known for its excellent mechanical and physical properties, including high strength, corrosion resistance and heat resistance. In addition, its unique composition makes it suitable for a variety of marine, aerospace and chemical processing applications. In this blog post, we'll take a closer look at UNS C95400 and explore its composition, properties, uses, heat treatment, processing, welding, and more.
What is Aluminium Bronze UNS C95400?
Aluminium Bronze UNS C95400 is a high-strength alloy composed of copper, aluminium and other alloying elements. It offers excellent wear resistance, superior mechanical properties, good corrosion resistance and an excellent strength-to-weight ratio. The alloy is used in a wide range of applications requiring wear and corrosion protection as well as high strength components.
UNS C95400 Composition
Aluminium bronze, also known as aluminium bronze or high-strength brass, is an alloy of copper, aluminium, iron and nickel. UNS C95400 has a higher aluminium content than other copper-based alloys (10-11%), which improves strength, corrosion resistance and wear resistance. It also contains iron (3-5%) and nickel (3-5%) to increase its tensile strength and toughness.
UNS C95400 Mechanical Properties
UNS C95400 is a high-strength alloy with excellent mechanical properties, high tensile and yield strengths, good ductility, and low friction. Its ultimate tensile strength is approximately 105 ksi (725 MPa) and its yield strength is approximately 47 ksi (325 MPa). Its elongation at break is about 10%, indicating good ductility. Its low coefficient of friction and hardness (approximately 190 Brinell) make it suitable for bearing applications.
UNS C95400 PHYSICAL PROPERTIES
UNS C95400 has excellent physical properties, including high corrosion resistance in seawater and other corrosive environments, good heat resistance (up to 500°C), and good thermal and electrical conductivity. It also has a low coefficient of thermal expansion, making it suitable for applications requiring dimensional stability.
UNS C95400 Equivalents
American Society of Mechanical Engineers (ASME) SB148
American Society of Mechanical Engineers (ASME) SB271
ASTM B148
ASTM B271
ASTM B30
ASTM B505
ASTM B763
ASTM B806
MIL C-11866
QQ C390
SAE J461
SAE J462
UNS C95400 Uses
UNS C95400 is widely used in the marine, aerospace and chemical processing industries due to its unique properties. It is used in a variety of applications, including marine propellers, bearings, gears, pumps, valve components, bushings and wear plates. It is also used in the aerospace industry for engine components, landing gear and hydraulic system components. In addition, it is used in pumps, valve bodies and heat exchangers in the chemical processing industry.
UNS C95400 Corrosion Resistance
UNS C95400 has excellent corrosion resistance in seawater and other corrosive environments, making it suitable for marine applications. It also has good resistance to stress corrosion cracking and dezincification, which are common problems with other copper-based alloys.
UNS C95400 Heat Treatment
UNS C95400 can be heat treated by precipitation hardening or annealing to improve its mechanical properties. Precipitation hardening involves heating the alloy to a specific temperature range and rapid cooling. Annealing consists of heating the alloy to a specific temperature and cooling slowly. A qualified professional should perform the heat treatment process to ensure the best results.
UNS C95400 Machining
UNS C95400 can be machined using traditional methods such as milling, turning and drilling, but it requires proper cutting tools and feeds to prevent work hardening. The alloy has high strength, which makes machining difficult. It is therefore recommended to use carbide or diamond tools with high cutting speeds and low feed rates to minimise work hardening.
UNS C95400 Welding
UNS C95400 can be welded using a variety of methods such as gas shielded tungsten arc welding (GTAW), gas shielded metal arc welding (GMAW) and resistance welding. However, it requires proper welding techniques and precautions to prevent cracking and porosity. The use of filler metals of similar composition is also recommended to prevent galvanic corrosion.
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