UNS C67400 Manganese Bronze Chemical Composition, Grade, Tables and Online Pdf

UNS C67400 is a corrosion resistant and well strengthened brass of Manganese that can be used for many applications in industrial processes. The chemical formula often consists of copper as the chief element, trace with manganese and through other elements like, iron, aluminum, and nickel. Along with the grade of C67400, this alloy complies with the industry quality and performance standards, as usually expected. In-depth tables listing out the formulation and mechanical properties of the material could be accessed on online PDFs provided by the materials manufactures or industry organizations that are known to be credible sources. These resources can be of immense help to the professional engineers, metallurgists and manufacturers alike, who can use them to better understand the properties of UNS C67400 manganese bronze and how to fully utilize them in their projects and products.

UNS C67400 Manganese Bronze Chemical Composition And Grade Table

UNS - C67400 is generally referred to manganese bronze which is an alloy endowed with good strength, corrosion resistivity, is also easy to machine. Its chemical composition may include copper as its main element, manganese, iron, and so on, but there are trace amounts of other elements. Besides high strength and wear resistance, manganese provides endurance and durability, which makes this alloy perfect for hardware, casting valve stems, and pump components. Compared to other materials due to its superior mechanical features and workability with casting and machining techniques, UNS C67400 is seen as the most prominent choice for engineering and manufacturing.

UNS C67400 Manganese Bronze Composition Table
Elements Cu Zn Al Mn Sn
Min (%) - - - - -
Max (%) 58.5 36.5 1.2 2.8 1

The Advantages and Disadvantages of UNS C67400 Copper Material Properties, C67400 Properties


  • Corrosion Resistance: The C67400 copper alloy shows good corrosion resistance especially in saltwater environments that's why it's often used for various applications exposed to moisture and saltwater.

  • High Strength: Ductile cast iron possesses superior strength by the inclusion of alloying elements such as zinc, aluminium, and manganese, making it suitable for applications needing mechanical strength and durability.

  • Wear Resistance: Adding alloying elements gives it increased wear protection making it a good choice for areas involving friction and damping like fittings and bushings .

  • Machinability: C67400 copper alloy possesses good machinability and it can be easily formed and retooled to be the desired shapes that are useful for manufacturing processes.

  • Electrical Conductivity: C67400, although not as high as pure copper, still retains reasonable electrical conductivity that makes it suitable for applications that require conductivity but not as high as pure copper.


  • Cost: Copper alloys, including C67400, often are more expensive than other materials because of the higher cost of copper and of other elements necessary for alloying.

  • Limited Weldability: The metal can be welded with proper techniques, but it may not be as easily welded as other materials can be, and so its use in some manufacturing processes may be restricted.

  • Material Selection: Specific applications may require a substitute material with higher strength or corrosion resistance given its better characteristics than C67400 in this regard, preferably in other scenarios.

  • Brittleness: In some cases, the addition of alloying elements such as aluminum and manganese may result in more brittleness which may not be appropriate in the applications requiring high ductility and toughness.

  • Availability of Shapes: Copper alloy availability may be shaped limitedly because of its chemical composition and it may require a different design for the certain manufacturing processes and designs.

Related Topics

Here is another related topic that you may also like.

Frequently Asked Questions

What is the chemical constitution of UNS C67400 Manganese Bronze?

UNS C67400 Manganese bronze normally contains the copper (Cu) element along with notable alloying of zinc (Zn) and manganese (Mn). Additional trace elements of aluminum (Al) and iron (Fe) might also be present.

Is UNS C67400 Manganese Bronze a kind of grade?

UNS C67400 is considered a wrought copper alloy belonging to the class of manganese bronze. It is generally applied in the cases where a high strength, wear resistance, and corrosion resistance are needed.

Where can I get web resources or PDF files regarding UNS C67400 Manganese Bronze?

The websites of copper alloys metal suppliers, manufacturers and specialized associations that are dedicated to the particular area of metal processing usually provide access to information such as manufacturer datasheets, technical specifications, and material property guides about UNS C67400 Manganese Bronze.

Why are there various usages of UNS C67400 Manganese Bronze?

UNS C67400 Manganese Bronze is known for marine hardware and valve parts, pump components and various of other pieces in which high strength, wear resistance and corrosion resistance required. This material, because of its characteristics that meet those conditions which are volatile load and abrasive climates, is the most appropriate choice.