ASTM B139 C52100 Copper Chemical Composition, Grades, Chart and Pdf

ASTM B139 C52100 is a copper alloy that has been a most preferred alloy for the applications which require superior machinability and wear and tear resistance, e.g., bearings and bushings used in machine tools and electrical parts. The main component is of course copper (Cu), which is used with tiny amounts of tin (Sn) and phosphorus (P) to improve the mechanics above all. Among the well-rounded set of qualities including high strength, good wear resistance and a very low rate of corrosion, C52100 outperforms other standard copper alloys. The grades of C52100 are determines by factors that is contained in the composition which has purposes of serving particular function. An extensive infographic listing its mechanical quality, chemical content, and grades as well as some relevant applications is available in the PDF format which is a useful resource for engineers, manufacturers, and suppliers with the aim to work with copper alloys in different industries.

C52100 Copper Chemical Composition, Copper C52100 Chemical Composition And Grades Table

C52100 copper stands out with a chemical formula predominantly consisting of copper (Cu) and slightly additives mixtures of other components. Being a well-performing alloy, the mechanical features of this alloy such as strength, hardness and abrasion resistance are widely acknowledged. C52100 is manufactured in various grades for individual industry specific requirements. A considerable table that shows this copper alloy’s chemical composition and degrees gives absolutely vital information to the engineers and manufacturers who are looking to utilize it in different applications.

C52100 Copper Composition Table
Elements Cu Pb Sn Zn Fe P
Min (%) 90 - 7.0 - - 0.03
Max (%) Rem 0.05 9.0 0.20 0.10 0.35

The Advantages and Disadvantages of ASTM B42 C52100 Copper Material Properties, C52100 Properties


  • Excellent Electrical Conductivity: Among other benefits, C52100 boasts of excellent electrical conductivity which is really important for applications requiring high value of current flow like connectors and conductors.

  • Hydrogen Embrittlement Resistance: C52100 is a hydrogen embrittlement resistant alloy that considers the issue of durability in its use for a long time, which is a problem facing most applications.

  • Corrosion Resistance: The brazing alloy has unique oxide non-scaling characteristics which is why it performs well in applications like forming glass-to-metal seals. Those work in high corrosion environments.

  • Formability: Its high formability enables it to be formed deep in a press and therefore is useful where great detail needs to be achieved in the finished part.

  • Low Magnetic Susceptibility: UNS C52100 being non-magnetic has a very low magnetic permeability which is great for applications where magnetic interference is a crucial issue.


  • Limited Strength: Although C52100 has high-notch electrical capabilities, it does not have these properties at all in terms of mechanical strength and because that is why it needs other reinforcements to be an option in structural applications.

  • Cost: C52100 Oxygen-free Copper commands a higher price than passenger automotive copper alloys because it involves special production techniques which strive for maximum purity level.

  • Susceptibility to Stress Corrosion Cracking: C52100 has a high susceptibility to stress corrosion cracking which is a cracking of the component caused by the interaction between water and stress. Designers must pay a lot of attention to this phenomenon during the design process.

  • Limited Wear Resistance: The major drawback of this type, which is no doubt its softness in nature, is the fact that it is easily worn out, including in high-friction conditions.

  • Not Ideal for High-Temperature Applications: C52100's property of low melting value takes this metal out of formula in applications having elevated temperatures.

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Frequently Asked Questions

What does ASTM B139 C52100 Copper refer to?

ASTM B139 C52100 Copper is a copper alloy that conforms to the specification outlined in ASTM B139 by ASTM International. The alloy is highly conductive electrically and withstands wear very well. These properties are used for fabrication of electrical connectors, bearings, and bushings.

Which are the Main Chemical Elements of C52100 Copper?

Copper (Cu), Lead (Pb), Tin (Sn), Zinc (Zn), Iron (Fe), Phosphorus (P).

Why do you need to choose C52100 Copper?

It is C52100 copper, which is used for its electrical conductivity which is exceptional, for resistant to hydrogen embrittlement, corrosion, formability and low magnetic susceptibility. Such characteristics make it a suitable candidate for applications that require conductivity, reliability, durability, and magnetic interference-free electromagnetism.

What process for C52100 copper production?

C52100 copper normally goes through a fusion, casting, and either hot or cold working operations. Copper is melted in a furnace, cast into ingots or billet, and finally shaped into the desired forms by the application of hot or cold working techniques.

Is the C52100 alloy suitable for use in harsh conditions?

The steel alloy C52100 is not an ideal option for the use in stressful conditions because of its vulnerability to stress corrosion cracking, low strength properties and gentleness which may result in performance deterioration in demanding circumstances.

Is the C52100 alloy easily available in Mumbai, India?

Availability of C52100 alloy in Mumbai, India will not be uniform and will depend on the suppliers required and on the demand. Contacting the local metal suppliers or distributors price will give us the best feedback.