We produce lead-free bronze alloys bearing and bushing upon request. In the world of machinery components, the transition to more environmentally conscious materials is crucial. Lead-free bronze bearings are at the forefront of this change, offering a safer and equally efficient alternative to traditional leaded bronze bearings. Made from innovative bronze alloys, these bearings eliminate lead, replacing it with elements like bismuth to retain the favorable mechanical properties without the health risks.
Common Lead-Free Bronze Alloy， Leaded Bronze Bushings and Bearings
We specialize in large-size centrifugal bushes, rings, and sleeves, crafted with precision by our team of skilled engineers, technicians, and bearing bronze alloy experts. Explore our products to see what we offer.
Leaded bronze, known for its high lead content, offers superior dry running properties and results in a softer material. This composition adjusts its mechanical properties when operating temperatures exceed 200°C. Leaded bronze is particularly suited for bearings under high surface pressure due to its acid resistance and compatibility with water lubrication. We offer leaded bronze bushings in alloys such as CuSn10Pb10 (CC495K) and CuSn7Pb15 (CC496K), catering to diverse application needs.
Leaded bronzes are renowned for their superior corrosion resistance and robust operational properties. Below, you can explore a selection of our most sought-after leaded bronze alloys. Additionally, we specialize in crafting custom alloys tailored to meet the specific requirements of our clients.
Bronze Alloy: CuSn10Pb10-C Specifications
Bearing Bronze Alloy Information: EN Number: DIN EN 1982, CC495K
Density: Approximately 9.0 g/cm³
Composition: Copper (Cu) 78.0 – 82.0%, Tin (Sn) 9.0 – 11.0%, Lead (Pb) 8.0 – 11.0%
Properties and Applications: CuSn10Pb10-C is a bronze bearing material known for its excellent sliding and dry-running properties. It offers good corrosion resistance and moderate to good wear resistance, making it suitable for applications with high surface pressures. This alloy is also noted for its very good machinability, enhancing its utility in creating detailed and complex parts for mechanical assemblies.
Precision in fabricating graphite parts through CNC mills, lathes, and grinders. Custom services include milling of grooves, crafting angles, radiuses, and chamfers tailored to unique requirements.
Characteristics:
- Excellent for soldering and brazing
- Not suitable for welding
- Ideal for bonding applications
Applications:
Automotive, and heavy machinery sectors: optimal for high wear resistance and superior load-bearing capacity without the toxicity of lead.
CNC Plug Graphite Custom Parts: For applications demanding precision and resilience, especially in high-temperature or chemically aggressive environments, CNC plug graphite custom parts are indispensable. These components are meticulously crafted using CNC technology to meet exacting specifications.
Common Lead-Free Bronze Alloy: we offering robust solutions that ensure durability and efficiency even in the most demanding conditions.
High-Temperature Environments:
Carbon-graphite bushings, bearings, mechanical seals, and vanes are engineered to withstand temperatures up to 5,000°F in neutral atmospheres and up to 1,600°F in oxidizing conditions.
Specialized Components:
Crucial in sintering, heat treating, and brazing applications with items like boats, trays, and brazing fixtures.
Material Grades
Selections range from medium to high-density grades for enhanced life and durability. The integration of lead-free bronze bearings and CNC plug graphite custom parts marks a significant advancement in industrial component manufacturing. With alloys like C89835, industries can maintain high performance while adhering to environmental safety standards.
Centrifugal Casting
During centrifugal casting, molten bronze is transferred from a furnace into a pilot ladle, which channels the molten metal into a horizontally spinning die. The resulting centrifugal castings can be supplied machined to near net size.
Continuous Casting
In the continuous casting process, molten bronze is poured from a furnace into a casting crucible equipped with a water-cooled die. Our products are available in both solid and hollow sections, ranging from rounds to flats.
Quality Control Laboratory
operates its own quality control laboratory, equipped with calibrated instruments to ensure that all machined metal products meet the specified quality standards. Our lab is staffed by experienced and professional personnel.
Machined Bronze Bearing & Brass Components
Supreme Metals produces and exports brass components and machined bronze to global markets from china
Specified Bearing Bronze Alloys
Here’s a comprehensive material data chart for the specified bearing bronze alloys, detailing their chemical composition, mechanical properties, equivalent specifications, typical uses, and key characteristics:
| Alloy Code | Chemical Composition | Mechanical Properties | Similar or Equivalent Specification | Typical Uses | Characteristics |
|---|---|---|---|---|---|
| CuSn7ZnPb (RG7) | Cu 81%, Sn 7%, Zn 3%, Pb 7% | Tensile Strength: 35 ksi, Yield Strength: 20 ksi | ASTM B505, DIN 1705 | Hydraulic cylinders, pump components | Excellent machinability, good corrosion resistance |
| CuSn10 | Cu 90%, Sn 10% | Tensile Strength: 40 ksi, Yield Strength: 20 ksi | ASTM B505, DIN 17662 | Marine hardware, electrical connectors | High wear resistance, good corrosion resistance |
| CuSn12 | Cu 88%, Sn 12% | Tensile Strength: 45 ksi, Yield Strength: 25 ksi | ASTM B505, DIN 1705 | High-load bearings, gears | Excellent wear resistance, suitable for high-load applications |
| CuPb10Sn | Cu 80%, Pb 10%, Sn 10% | Tensile Strength: 25 ksi, Yield Strength: 15 ksi | ASTM B505, SAE 792 | Bushings, washers, bearings | Low friction, good conformability |
| CuPb15Sn | Cu 75%, Pb 15%, Sn 10% | Tensile Strength: 30 ksi, Yield Strength: 18 ksi | ASTM B505, SAE 794 | Heavy-duty bushings, connecting rods | Excellent load capacity, good resistance to fatigue |
| CuAl10Ni | Cu 78%, Al 10%, Ni 5%, Fe 5% | Tensile Strength: 90 ksi, Yield Strength: 40 ksi | ASTM B505, DIN 17665 | Offshore rig components, aircraft parts | High strength, excellent corrosion resistance in seawater |
| CuSn10Zn (RG10) | Cu 80%, Sn 10%, Zn 10% | Tensile Strength: 38 ksi, Yield Strength: 18 ksi | ASTM B505, DIN 17662 | Decorative items, architectural fittings | Good corrosion resistance, aesthetically pleasing |
| CuZn25Al5 | Cu 70%, Zn 25%, Al 5% | Tensile Strength: 85 ksi, Yield Strength: 40 ksi | ASTM B505, BS 1400 | Valve components, load-bearing members | Very high strength, excellent wear resistance |
| CuSn5ZnPb (RG5) | Cu 85%, Sn 5%, Zn 5%, Pb 5% | Tensile Strength: 30 ksi, Yield Strength: 15 ksi | ASTM B505, DIN 1705 | General bearings, moderate-load bushings | Good machinability, reasonable strength and corrosion resistance |
This chart highlights the diverse applications and beneficial properties of each bronze alloy, making it clear why they are chosen for specific industrial uses, especially in settings where durability and resistance are crucial.