ThePipingMart Blog Grades 675 Manganese Bronze (C67500) – Composition, Properties and Uses

675 Manganese Bronze (C67500) – Composition, Properties and Uses

C67500 Manganese Bronze

C67500 Manganese Bronze stands out as a favored alloy across diverse industries thanks to its exceptional attributes. This alloy, also recognized as UNS C67500, boasts remarkable corrosion and heat resistance, coupled with ease of machinability and weldability. Characterized as an alpha-beta brass, it incorporates a significant manganese content, delivering a compelling blend of strength, durability, and resistance to corrosion. Renowned for its outstanding wear resistance, Manganese Bronze alloys find optimal application in bearings, gears, and other settings, demanding robustness and resilience against wear and tear. Moreover, the casting properties of C67500 Manganese Bronze are noteworthy, facilitating the production of intricate shapes with precision. Its versatile composition and impressive qualities make it a reliable and cost-effective solution for various industrial applications.

What Forms of 675 Manganese Bronze is Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Pipe Fittings
  • Forged Fitting
  • Instrumentation Fittings

675 Manganese Bronze Chemical Composition

The chemical composition of C67500 Manganese Bronze is meticulously crafted to enhance its exceptional properties. This alloy, also known as UNS C67500, features a thoughtful blend of elements. With manganese playing a crucial role, in its composition. The alloy achieves a balance that contributes to its remarkable strength, durability, and resistance to corrosion. This strategic combination of elements ensures that C67500 Manganese Bronze meets the demands of various industrial applications, making it a sought-after choice for those seeking a reliable and effective material solution.

Element Content (%)
Cu 58.5
Fe 1.4
Mn 0.1
Sn 1
Zn 39

675 Manganese Bronze Physical Properties

C67500 Manganese Bronze’s distinctive physical properties underscore its suitability for diverse applications. The density of this alloy, reflecting its mass per unit volume, typically falls within a specific range, contributing to its overall strength and structural integrity. Additionally, its melting point, the temperature at which the solid material transforms into a liquid state, is crucial in determining its processing and fabrication capabilities.

Properties Metric Imperial
Density 8.63 g/cc 0.312 lb/in³
Melting point 866°C 1590°F

675 Manganese Bronze Mechanical Properties

C67500 Manganese Bronze showcases strong mechanical attributes, featuring a hardness that resists wear, alongside impressive tensile and yield strengths, emphasizing its durability. The alloy’s hardness reflects its resistance to deformation and abrasion, while its tensile strength indicates its ability to withstand pulling stress. Additionally, its yield strength showcases resilience against permanent deformation. These mechanical properties collectively position C67500 Manganese Bronze as a reliable choice for applications requiring strength, longevity, and resistance to wear, notably in industrial components like bearings and gears.

Properties Metric Imperial
Hardness, Rockwell B 65 65
Tensile strength (annealed) 448 MPa 65000 psi
Tensile strength (hardened) 565 MPa 81900 psi
Yield strength (annealed) 207 MPa 30000 psi
Elongation at break (hardened) 25% 25%
Elongation at break (annealed, in 482.6 mm) 33% 33%
Machinability (UNS C36000 (free-cutting brass) = 100) 30 30

675 Manganese Bronze Equivalent

  • ASTM B124
  • ASTM B138
  • ASTM B283
  • ASTM F467
  • ASTM F468
  • SAE J461
  • SAE J463

675 Manganese Bronze Uses

C67500 Manganese Bronze stands out as an excellent choice for diverse manufacturing needs, celebrated for its advantageous blend of strength, corrosion resistance, and electrical conductivity. Particularly well-suited for marine applications like propeller shafting, rudder bearings, and stern tubes, it also finds use in bushings and general machining components due to its high working strengths among copper alloys. Manganese imparts exceptional wear resistance, and the alloy performs admirably under high temperatures. These qualities collectively establish C67500 Manganese Bronze as a cost-effective and dependable option for various industrial processes.

675 Manganese Bronze Uses in Industries

  • Automotive Industry
  • Marine Industry
  • Aerospace Industry
  • Construction Industry
  • Electrical Industry

675 Manganese Bronze Corrosion Resistance

C67500 Manganese Bronze stands out as an alloy with exceptional corrosion resistance, surpassing other materials. This quality is well-suited for challenging environments like Marine, Industrial, and Agricultural settings, where exposure to moisture and corrosive agents is common. Moreover, its resistance to salt spray and acid rain extends its applicability to outdoor uses, including piping systems and structural components. The alloy’s ability to withstand diverse corrosive challenges positions C67500 Manganese Bronze as a reliable choice for durable and longevity applications.

675 Manganese Bronze Heat Resistance

C67500 Manganese Bronze is highly heat resistant, making it ideal for use in high-temperature applications such as furnace linings or insulation systems. It can also be used in automotive components due to its ability to withstand high temperatures without losing its strength or integrity. In addition, this alloy can also resist thermal shock, which makes it suitable for use in extreme temperature environments.

675 Manganese Bronze Heat Treatment

This alloy can be heat treated in order to achieve a range of desirable properties, including improved strength and wear resistance. Heat treatment involves subjecting the alloy to elevated temperatures followed by rapid cooling processes in order to change the structure of the material on a molecular level. This process results in improved hardness and durability, which make the material more suitable for certain applications than untreated alloys would be.

675 Manganese Bronze Machining

C67500 Manganese Bronze is easy to machine due to its good machinability rating, making it ideal for precision parts that require complex shapes and designs. This alloy can also be cut with ease using standard cutting tools such as drills or milling machines, allowing manufacturers greater freedom when creating intricate designs with tight tolerances. Additionally, this material can also be easily welded using both TIG and MIG welding techniques, with minimal preparation required prior to welding operations taking place.

675 Manganese Bronze Welding

Welding C67500 Manganese Bronze can be used for a variety of applications due to the substantial mechanical and corrosion-resistant properties found in this copper-base alloy. With excellent machinability, non-galling characteristics, good strength and exceptional impact resistance, C67500 is an ideal choice when it comes to high-performance materials. Additionally, it is considered to be antifriction metal since its rough surfaces will not gall when bearing against each other. The combination of low coefficient of friction and improved wear resistance make this bronze ideally suited for applications such as piston rings, bearings and bushings–durable components in any machine component setup.


C67500 Manganese Bronze has proven itself over time as a reliable material for many different applications due to its superior properties, including excellent corrosion resistance, heat resistance, machinability and weldability. This versatile alloy is suitable for both indoor and outdoor projects alike due to its ability to withstand harsh conditions while still retaining its strength and integrity over time. With these qualities combined, C67500 Manganese Bronze is sure to remain an industry favourite in manufacturing circles going forward.

Related Post