Wrought Brass and Bronze Alloys
Manufacturing on Demand
Wrought Bronze Bearing Alloys, Cast Bronze Bushings
Wrought brass and bronze alloys, including those compliant with ASTM and EN standards, are produced through a multi-step process. Initially, the material is cast into a rough shape, after which it is physically worked into its final form through processes like extrusion, forging, hot rolling, or cold rolling. The working process reduces the material’s cross-sectional area, leading to enhanced mechanical properties such as increased strength, hardness, and stiffness when compared to their cast counterparts. Wrought bronze bearings and plates, in particular, are commonly used for applications requiring high durability and performance under load.
Wrought Bronze Alloys
Bronze alloys, available in various shapes such as plates and bushings, are known for their strength, ductility, and corrosion resistance. Typically harder than copper, bronze is created by adding metals like tin.
Bronze alloys primarily consist of pure copper and zinc, with some containing tin and other elements. Typically, these alloys have copper content ranging from 58% to 98% and contain varying amounts of zinc, from 0.2% to 40%. Wrought bronze is commonly identified by the following alloys.
Wrought bronze alloys are widely recognized for their excellent mechanical properties, including strength, wear resistance, and corrosion resistance, which make them ideal for a wide range of bearing and bushing applications. Below is a detailed look at some of the key wrought bronze bearing alloys.
Bronze bearing alloys are widely recognized for their outstanding mechanical properties, corrosion resistance, and wear characteristics, making them suitable for a variety of industrial applications. Below is a detailed overview of several common bronze alloys used for bearings, along with their compositions, properties, and typical uses.
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| Alloy | Description | Applications | Properties |
|---|---|---|---|
| C54400 | Phosphor Bronze: Known for excellent machinability and high performance in bearing applications. Phosphorus enhances wear resistance and lubrication properties. | – Electrical contacts – Bearings and bushings (low-speed, high-load) – Spring components – Work-hardened components |
– Machinability: Excellent, due to lead content – Strength: Good tensile strength and fatigue resistance – Wear Resistance: High, due to phosphorus content – Corrosion Resistance: Good, especially in water and atmospheric conditions – Formability: Can be bent, formed, blanked, and stamped when annealed |
| C63000 | Nickel-Aluminum Bronze: A high-strength copper-aluminum alloy with nickel and iron. Offers superior performance in heavy-load, abrasive wear-resistant applications. | – Heavy-duty bearings – Marine propellers and components – Pump parts and impellers – Aerospace components |
– Strength: High, due to aluminum and nickel – Wear Resistance: Excellent, particularly in high-load, abrasive conditions – Corrosion Resistance: Excellent, especially in marine environments and harsh chemicals – Ductility: Good, with a balance of strength and toughness – Toughness: Excellent, able to withstand shock loading |
| C63020 | Nickel-Aluminum Bronze: Contains 5.00%-11.00% aluminum by weight, with copper, iron, and nickel. Offers high strength and wear resistance. | – Bearings for high-load, slow-speed applications – Valve components in corrosive environments – Aircraft parts – Marine applications and turbine components |
– Strength: Very high, due to aluminum and nickel content – Wear Resistance: Excellent, particularly in environments with friction and abrasion – Corrosion Resistance: Good, especially in seawater and chemical exposure – Machinability: Moderate, due to the strength of the alloy – Toughness: High, with resistance to cracking under stress |
| C64200 | Aluminum Bronze: High-performance alloy offering excellent corrosion resistance and strength. Suitable for demanding applications like valve stems. | – Valve stems and valve parts – Marine and offshore components – Bearing and bushing applications – Pumps and industrial machinery |
– Strength: Very high, ideal for load-bearing applications – Corrosion Resistance: Excellent, resistant to seawater and chemicals – Wear Resistance: Good, particularly in low- to medium-load applications – Toughness: Moderate, suitable for components requiring strength but not extreme impact |
| C67300 | Manganese Bronze: A high-strength alloy of copper, zinc, and manganese. Designed for high-load, low-speed applications, offering excellent wear resistance. | – Heavy-duty bearings and bushings – Marine and shipbuilding applications – High-load, low-speed shafts – Industrial equipment subjected to heavy impact |
– Strength: Very high, excellent load-bearing capacity – Wear Resistance: Outstanding, particularly in low-speed, high-load conditions – Corrosion Resistance: Good, suitable for marine and industrial applications – Toughness: High, absorbs shock and resists fatigue failure – Machinability: Good, but challenging due to strength |
Advantages of Bronze Bearings:
Bronze Bearings offer exceptional mechanical properties in various demanding operating and environmental conditions:
ASTM Wrought Copper Alloy
Wrought copper alloys, as defined by ASTM (American Society for Testing and Materials), are essential materials utilized across various industries due to their favorable properties. These alloys are primarily characterized by their mechanical strength, electrical conductivity, and versatility in applications.
EN Wrought Copper Alloy
Wrought copper alloys, designated under various standards such as EN (European Norm), are materials known for their superior mechanical properties and workability. These alloys are primarily used in applications requiring high strength, excellent electrical conductivity, and good machinability.
