ASTM B36 C26000 Copper Chemical Composition, Grades, Chart and Pdf

ASTM B36 C26000 depicts both the leading chemical composition and grades for copper alloy C26000, which is also known as Cartridge Brass. Which is often 70% copper and 30% zinc with some minor additions of other parts of the metal such as lead to bring about good machine ability. The shapeability, corrosion protection and conductivity of C26000 Copper, permits this versatile material to be used in a variety of applications for electrical components, plumbing fixtures, as well as decorative hardware. In the report of ASTM C26000 it clearly presents the chemical composition and mechanical properties of the C26000 copper alloy by using the table. This is important information for manufacturers, engineers and designers to have under their belt in order to make sure they remain complaint and also when selecting the best materials. The professional document containing this data in PDF format is seen widely in professional levels and outlets within the concerned fields.

C26000 Coppers Chemical Composition And Grade Table

The chemical structure and general grade ordinary C26000 copper, is an important reference for studying it because of its function and application. Usually it contains about 70% copper, with 30% of the alloy made up of zinc and a little amount of lead. This addition of other elements help to make the alloy strong both in its form, corrosion resistance and electrical conductivity. In the grade table, all proprieties of each element have been defined to be used according to each application. The engineers and firms usually require this data for the development of the new material selection and the fulfillment of industry requirements.

C26000 Copper Composition Table
Elements Cu Pb Zn Fe
Min (%) 68.5 - - -
Max (%) 71.5 0.07 Rem 0.05

The Advantages and Disadvantages of ASTM B36 C26000 Copper Material Properties, C26000 Properties


  • Exceptional Electrical Conductivity: OFE copper C26000 stands out in terms of super conductivity, a feature that makes it very suitable for those devices which require easy, efficient transmission of electricity.

  • Soft Material: The material's natural softness is not an adversary of its ability to be molded, forming or bending as a result the fabrication.

  • High Thermal Conductivity: C26000 possesses very large thermal conductivity, therefore it is selected for heat exchangers, radiators and various heat transfer applications.

  • Good Corrosion Resistance: Unlike some other copper alloys that are better compositions against corrosion, C26000 still offers decent resistance to environmental deterioration.

  • Susceptibility to Oxidation: The principle cause of this oxidation is the high purity of OFHC C26000 that ideally surfaces the metal when exposed to the air or moisture.


  • High Cost: Oxygen-free copper is manufacturing more highly and exclusively because of its purity and special production process. So it is more expensive than other copper alloy C26000.

  • Limited Strength: Although C26000 type is relatively soft metal which can be a barrier for those who need high mechanical strengths.

  • Not Ideal for High-Stress Environments: Its low strength factor and low resistance to oxidation make it too vulnerable for heavy duty structures.

  • Limited Work Hardening Ability: C26000 copper is not a strength-tempered metal. This, however, does not mean that it will become a lot stronger or tougher than its original state as it may result into plastic deformation (such as bending or hammering).

  • Susceptibility to Stress Corrosion Cracking: Although most C26000 exposed copper showed good overall corrosion resistance, however, it is possible under certain conditions SCC (Stress Corrosion Cracking) can occur.

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Frequently Asked Questions

What does ASTM B36 C26000 Copper refer to?

ASTM B36 C26000 refers to a type of copper alloy, which has a particular specification. It meets ASTM B36 standards and is recognized as a primary metal constituency of copper (Cu) with the smallest amounts of other elements and is therefore appropriate for multiple uses.

Which are the Main Chemical Elements of C26000 Copper?

Copper (Cu): The maximum 71.5%, Lead (Pb): A maximum of 0.07% is the amount of content, Zinc (Zn),Iron (Fe).

Why do you need to choose C26000 Copper?

Select C26000 copper for it's affordable cost, ease of formation because it's soft, and simple at places where you do not require high mechanical strength. Its advantage in the protection of general corrosion resistance makes it preferable for the most of the daily-life purposes and conductivity of electricity.

What process for C26000 copper production?

The copper C26000 is mostly acquired through heat, force and mechanical working including melting, casting and hot and cold operations. Here the process may be approached by the exploitation of various techniques for drawing, extruding or rolling metal with the aim of creating passable shapes for utilizing in different industries ranging from electrical to architectural.

Is the C26000 alloy suitable for use in harsh conditions?

Not for sure; C26000 alloy might not be suitable for harsh conditions given its lower strength, the potential of oxidation, and the possible stress corrosion cracking exposed to specific environmental conditions.

Is the C26000 alloy easily available in Mumbai, India?

Yes, the C26000 alloy is available in Mumbai located in India at various metal suppliers and distributors which is the specialization in copper alloys.