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Copper Balls

Copper Balls(H62, 316, 420, 440) is a type of ball made from stainless steel
copper balls

Copper Balls

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Copper balls are versatile components made from pure copper, known for their excellent electrical and thermal conductivity, superior corrosion resistance, and high machinability.The diameter ranges from 0.5mm to 50mm and is widely used in industrial, medical, decorative and traditional therapy fields.

Specifications of Copper Balls

Chemical composition

 
  Code Cu Pb Fe Ni O
Copper Ball H62 60.5-63.5% ≤0.8% ≤0.15% / /
Electrolytic Copper ≥99.90% / / / ≤0.04%
CuNi8 86.5-93.5% ≤1.0% ≤0.50 6.0-10.0% /

Copper Balls Physical Properties

Item Parameters
Melting Point 1083-1085°C
Electrical Conductivity 58 MS/m
Elongation 8.89-8.94 g/cm³
Thermal Conductivity 385-401 W/(m·K）
Elastic Modulus 110-128 GPa

Grade: G100 to G1000

  Ball diameter variation Spherical deviation Surface roughness Diameter variation Diameter tolerance
Gade Vdws △Sph Ra Vdwl Tdn
Not Over
μm
100 2.5 2.5 0.1 5 ±12.5
200 5 5 0.15 10 ±25
500 12.5 12.5 * 25 ±50
1000 25 25 * 50 ±125

How to Build Copper Balls

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Cold Heading

Cold Heading

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The cold heading uses equipmentZ32-7.5. The purpose is to be able to punch the steel wire out of the qualified ball blank. After the steel ball is cold heading, the next processing process is carried out.

Screening

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Screening, the balls after the hard grinding is initially screened through the screening machine, and the unqualified ball will be eliminated.

Screening
Polish steel balls

Polish Steel Balls

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Polishing ball process is to initially polish the ball blank into a circle. It's a very important process.

Soft Grinding

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The machine M360 is ued for soft grinding.

Soft Grinding

Oil Removal

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Oil removal equipment, put the ball into the equipment, after screening, separate the ball from the oil.

Oil Removal
Hard Grinding

Hard Grinding

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Hard grinding is the method of grinding the ball after heat treatment with grinding wheel in the grinding machine. Its role is to further improve the accuracy and surface quality.

Measuring Instrumentation

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After the hard grinding, the steel ball will be measured in accuracy, hardness, etc., and the three-needle measuring instrument will be used to check whether the expected effect is achieved.

Measuring Instrumentation
Cleaning

Cleaning

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After screening, the steel ball is cleaned again and then dried.

Sorting

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After cleaning, the steel ball will be qualified into the container through the sorting machine, and finally manually test to complete the whole process of steel ball production.

Sorting
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NOT SURE WHICH COPPER BALLS RIGHT FOR YOU?

Features of Copper Balls

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copper ball

  Copper balls stand out for their excellent electrical and thermal conductivity, good corrosion and antimicrobial properties, high workability and ductility, and aesthetic and health benefits.

  Their high electrical and thermal conductivity (second only to silver) ensures efficient energy transfer, making them suitable for electrical connectors and heat dissipation systems..

  Copper's antimicrobial and ductile properties make it excellent for use in the medical, hygiene, and electroplating sectors. Its reddish-brown appearance and traditional therapeutic value add both decorative and health benefits..

Know Detailed Information

Please Download Catalogue Here  
stainless steel ball

Our Factory

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Changzhou Risheng Steel Ball Co., Ltd. is located on the eastern shore of Taihu Lake, adjacent to Shanghai, with convenient transportation. Since its establishment in June 1995, the company has been dedicated to developing and manufacturing steel balls, integrating research and development with trade.

For many years, Risheng building on the foundation of the Wujin Metal Ball Research Institute, has been committed to researching steel ball manufacturing technology. We primarily produce shaft steel balls (AISI 52100), stainless steel balls (AISI 201/304/316/420/440/430), and carbon steel balls (AISI 1015/1045/1085) with diameters ranging from 0.8mm to 25.4mm, with precision grades up to G10, G40, and G100. We also offer custom specifications for alloy steel balls, military steel balls, copper balls, UFO balls, ceramic balls, and other metal balls. 

Packaging & Deliver of Copper Ball

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High-strength inner packaging: Shockproof foam bags or custom plastic boxes are used to secure each copper ball in place, protecting it from impacts and scratches.

Moisture-proof protection: A moisture-proofing agent is added to effectively prevent the impact of moisture on the product during transportation.

Sturdy outer packaging: Thickened corrugated cardboard boxes or wooden pallets (for large orders) are used to ensure safe long-distance transportation.

Clear labeling: Product specifications, quantity, and drop warnings are clearly marked on the outer packaging box for easy verification and safe handling.

Service Process
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You can expect sound service from risheng service technicians when and where you need it most. From our application insight to our confidence at the counter, risheng will work to answer your requests with expert care and promptness. We know your better than anyone.
  • 1
    Speciality SERVICES
    Professionally manufactured copper balls, using precision technology to ensure excellent hardness and corrosion resistance, suitable for industrial precision applications.
  • 2
    Quality SERVICES
    High-quality copper balls, strictly quality inspected, with high surface finish and hardness up to HRC 50-55, provide reliable and durable performance.
  • 3
    Extra Mile PRICING
    High-quality service response, rapid customized production, global logistics distribution, technical consultation and after-sales support to meet diverse needs.
Quality Certification
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FAQ of Copper Balls

  • Q What are the applications of copper balls？

    A 1.99% Pure Copper Ball mainly used in kinds of electric accessories,switch,carburetor
    2.The ball is soft so it is easy to be drilled,then usually used in valve , fuel injectors, sprayers,pressure gauges,water meter ,transmission system,jewelly,bracelet,earrings, necklaces, touch-spot and art ware

  • Q What are the characteristics of copper balls?

    A
    1.Our pure copper balls are renowned for their corrosion resistance and excellent thermal and electrical conductivity.
    2.Their excellent electrical conductivity makes them ideal for electrical applications, while their corrosion resistance makes them well-suited for use in marine and industrial environments where halogens, salts, sulfides, and water are present.

  • Q How are Copper Balls Manufactured?

    A
    Casting: Molten copper is poured into molds and cooled.
    Forging: Hammered into spherical shapes for denser structure.
    Machining: Precision cutting from copper rods or sheets.
    Electroforming: Used for hollow or thin-walled balls in decorative uses.

  • Q What are the benefits of copper balls?

    A
    Conductivity: Excellent for electrical and thermal applications.
    Corrosion Resistance: Naturally forms a protective patina, resisting rust better than iron.
    Malleability: Easy to shape or alloy for specific needs.
    Aesthetic Appeal: Develops a unique greenish patina over time, valued in art.

  • Q What are copper balls?

    A

    Copper Balls exhibit good corrosion resistance in environments where fuel oil, gasoline, kerosene, and alcohol are present. Copper balls provide excellent resistance to corrosion by water. Copper also exhibits excellent electrical conductivity and widely used in the security and appliance industries for dip and tilt switches. Copper balls are available in a range of sizes, tolerances and grades of copper. Copper balls can come in useful in devices when electrical conductivity is needed. Copper balls are also much cheaper than ceramic balls but both have their own unique properties that make them useful for specific tasks.

     

Internation Standards and Material Codes

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