Bronze

Kormax offers a broad range of alloys, profiles and sizes in bronze metals

Bronze alloys are metals that are 80-95 percent copper with the remainder made up of one or more other metals such as tin, silicon, nickel, aluminium, iron, zinc, or manganese. When strength and corrosion resistance are required, bronze is a preferred material. Kormax's casting capabilities include continuous casting and centrifugal casting. Continuous casting can produce diameters ranging from 1″/25mm to 10″/254mm, as well as square and rectangular profiles. Centrifugal casting can achieve diameters ranging from 8″/203mm to 18″/3000mm for spun bronze castings. Kormax can also obtain Extruded Bronze in addition to these methods. Extrusion produces a more consistent grain structure as well as higher tensile strength consistency than other casting methods. Extruded Bronze is typically used for highly critical components such as as aircraft undercarriage components. Bronze is a versatile and widely used material due to the wide range of bronze alloys and compositions. Because bronze is both strong and versatile, it is commonly used for sacrificial bushings. Bronze bushings and wear pads have a long service life and are resistant to shock, impact, wear, and corrosion. To reduce friction and wear, they require an external lubricant, such as grease or oil, both during installation and operation. Kormax, with over 70 years of Foundry experience, is a reliable partner for large Bronze Alloy castings. Alloy selection, component design, manufacturing, and semi-finished material supply are among our areas of expertise. Kormax is well equipped for rapid and large-scale production due to its large inventory.<

Leaded Bronze

Leaded Bronze alloys combine lead, tin, and zinc to create a range of alloys suitable for bearings, gears, sliding pads, and other light-duty applications.  Leaded Bronzes provide light to medium duty strength, good machining properties, and are corrosion resistant. There are several alloys available, including C932 (SAE660), which have high levels of lead and tin to provide good lubricity. Leaded Gunmetal Bronzes such as LG2 (C836) has greater zinc content for slightly higher tensile strength.    

Leaded Gunmetal LG2 Bronze

Key Features
  • Excellent machining properties
  • Medium Strength
  • Good Pressure Tightness
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Leaded Bronze SAE660 / 932

Key Features
  • Excellent machining properties
  • Medium Strength
  • Good Bearing Properties
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Aluminium Bronze

Aluminium Bronze is a family of high-strength, corrosion-resistant bronzes. Kormax offers a diverse range of grades as well as a trusted alloy selection. Bronze is a versatile and widely used material due to its many alloys and compositions available. Bronze bushings (also called bronze bearings) are strong and versatile, making it the material of choice for many sacrificial bushings. Bronze bushings have a long service life and can withstand shock, impact, wear, and corrosion. In order to reduce friction and wear, they require an external lubricant, such as grease or oil, both during installation and operation stages.

Aluminium Bronze 954

Key Features
  • High Strength
  • Excellent wear resistance
  • Good Machining qualities
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Nickel Aluminium Bronze AB2

Key Features
  • Suitable for marine applications
  • Superior corrosion resistance
  • Superior wear resistance
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Nickel Aluminium Bronze 955

Key Features
  • High Tensile Strength
  • Suitable for marine applications
  • Heat treatment can increase strength
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Nickel Aluminium Bronze 630

Key Features
  • Wide variety of sizes in small increments
  • Extruded material gives superior strength
  • Exceptional wear & corrosion resistance
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Phosphor Bronze

Phosphor Bronze, also known as 'gear bronze,' is a high strength material. Components machined from PB1 are durable in applications with high operating loads and speeds, provided they are properly aligned and lubricated. PB1 is suited for pump and valve components due to its excellent machining qualities and corrosion resistance to seawater and brine. Kormax PB1 Phosphor Bronze is manufactured using carefully controlled continuous or centrifugal casting techniques to ensure greater hardness and strength than sand-casting methods. This also implies that the material has a fine grain structure and is porosity-free.

Phosphor Bronze PB1

Key Features
  • Handles high working loads
  • Good for high working speeds
  • Suitable for pump and valve components
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Phosphor Bronze PB2

Key Features
  • Handles high working loads
  • Good for high working speeds
  • Suitable for pump and valve components
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High-Performance Bronzes

Manganese bronze alloys contains additives of manganese, iron, aluminum and lead to achieve extra high strength and excellent corrosion resistant properties. These properties with the inclusion of lead for lubricity make it commonly used for bearings operating with heavy loads.Kormax also offers Copper Nickel Tin alloys as the premium bearing alloy. Copper Nickel Tin alloys have the highest strength and excellent galling resistance.

Manganese Bronze 863

Key Features
  • Exceptionally strong
  • Good wearing properties
  • Suitable for hydraulic cylinder components
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Copper Nickel 729

Key Features
  • Exceptionally high strength and hardness
  • A low coefficient of friction
  • Great wear resistance
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Sintered Bronze

Standard Oilite bearings are impregnated with a highly refined mineral oil to ISO VG (SAE 30) having a high viscosity index and containing antioxidant, anti-rust and defoamant additives. Oilite® are sintered bearings often used in environments when high speed operation is required, in limited-space and variable-load applications.

Sintered Bronze

Key Features
  • Self lubricating
  • Superior wear resistance
  • Long part life
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Bronze Casting Production Process

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Metals Catalogue

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Bronze Alloy Selection

23 October
Webinar