ASTM B139 C51000 Copper Chemical Composition, Grades, Chart and Pdf

ASTM B139 C51000 is a copper alloy which is being commonly used for its outstanding property of corrosion resistance and high electrical conductivity. The chemical composition of it mainly is a mix of copper (Cu) with some phosphorus (P) and other elements in very small quantities which enhance its own structure. C51000 is a metal that offers fantastic formability and weldability that particularly suits a broad array of uses in industries like electrical, marine and architecture. The C51000 series can be obtained by grades to make a choice of conductivity, strength and corrosion resistance for every purpose. A detailed table on the mechanical properties, chemical composition and grades of copper alloys can be found in a PDF file to support the work of copper alloy fabricators in addition to engineers, manufacturers and researchers. Being dependent on such a service of a supplier in Mumbai,India, the commodity availability may vary also by region so that local suppliers should be contacted to speed up procurement process.

C51000 Copper Chemical Composition, Copper C51000 Chemical Composition And Grades Table

C51000 copper is mainly composed of copper (Cu) virtually with a small amount of phosphorus (P) and trace elements. It gives top anti-corrosion performance and the highest electrical conductance rate. Set a good example in the way you speak, think, and behave, focusing on positive environmental impacts, personal and power actions, and problem-solving. Information is available in grades such as C51000 concerning conductivity, strength and corrosion resistance depending on the needs of the particular user. A tabular representation alone which lists the chemical makeup and grades will be of immense information to the engineers and manufacturers who intend to incorporate this multi-functional copper alloy in different applications.

C51000 Copper Composition Table
Elements Cu Pb Sn Zn Fe P
Min (%) 95 - 4.2 - - 0.03
Max (%) Rem 0.05 5.8 0.30 0.10 0.35

The Advantages and Disadvantages of ASTM B42 C51000 Copper Material Properties, C51000 Properties


  • Exceptional Electrical Conductivity: C51000 has a very high electrical conductivity that is advantageous by being especially good for applications that transmit current with a close to maximum flow, such as connectors and conductors.

  • Resistance to Hydrogen Embrittlement: Ingenuity of C51000 means high resistance to hydrogen embrittlement which provides with a long-term reliability, overcome the problems of the H2 environment in various applications.

  • Corrosion Resistance: The hard, non scaling, oxide layer of ASTM C51000 provides fine corrosion resistance, which makes it a promising material for glass-to- metal seal material.

  • Formability: The attribute of formability that is extremely good makes the moldings that occur during the manufacturing processes deeper, increasing the parts' versatility with regards to making complex patterns.

  • Low Magnetic Susceptibility: UNS C51000 has the lowest magnetic permeability possible, which is the fact very valuable because of the need to limit magnetic interference in the technologies.


  • Limited Strength: In spite of its great ability as an electrical conductance C51000 lacks as a high mechanical strength, therefore it must be supported with another strong material for the structural use.

  • Costly: C51000 including oxygen-free copper is more expensive than the traditional copper ones owing to precise manufacturing method giving ultimate purity.

  • Susceptibility to Stress Corrosion Cracking: The alloy C51000 tends to be sensitive to stress corrosion cracking under specific situations and hence it warrants careful evaluation in design process.

  • Limited Wear Resistance: C51000's softness might cause it to corrode easily in high stress areas with the potential for ball wear, hence the critical maintenance requirement.

  • Not Ideal for High-Temperature Applications: Having melting point below 500 degree celsius the C51000 is not suitable for use in the heat driven applications, so it can not be widely used in the industrial applications.

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Frequently Asked Questions

What does ASTM B139 C51000 Copper refer to?

ASTM B139 C51000 Copper alloy is defined by ASTM International as the one of many the copper alloys standards which are certified by this organization. High electrical conductivity, corrosion-resisting capability and formability are the major properties that are associated with it and these make it suitable for industrial applications like in electronics and mechanical industry.

Which are the Main Chemical Elements of C51000 Copper?

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

Why do you need to choose C51000 Copper?

Use C51000 copper for its superior electrical conductivity, hydrogen resistance, anti-corrosion property, good formabolity, and also, its low magnetic susceptibility. Although it engine may not be as sturdy as the other materials, it still wins this round because of its better conduction capability and corrosion protection ability.

What process for C51000 copper production?

It is commonly known that C51000 copper is processed through the method of electrolytic refining, where copper cathodes in extremely purity is refined in the presence of voltage until it reaches the wanted product's composition and features to match perfectly with the needs of the different applications that require exceptional electrical conductivity and corrosion resistance.

Is the C51000 alloy suitable for use in harsh conditions?

C51000 alloy could not be the best choice for all applications, as the strength of the alloy is low, it is corrosion sensitive for stress cracking, and as it is not too hard the performance in demanding conditions may be affected.

Is the C51000 alloy easily available in Mumbai, India?

Whether C51000 alloy exist in Mumbai, India or not may be changed depending on which suppliers are in the business and which demand are economy of the area. Get in touch with product suppliers to check information.