ThePipingMart Blog Grades C103 Copper – Composition, Properties, and Uses

C103 Copper – Composition, Properties, and Uses

Copper C103

Copper C103 is an alloy grade of copper that has a wide range of uses and applications. It is composed of 99.3% pure copper with the addition of 0.7% phosphorus, which gives it its characteristically strong properties and resistance to corrosion. In this blog post, we will go into detail about the composition, chemical properties, mechanical properties, physical properties, uses, corrosion resistance, heat resistance, and heat treatment process of Copper C103.

What is C103 copper?

C103 copper Alloy is an alloy made up of copper and zinc, providing a material that is strong yet malleable. This economical steel-like metal is often used in a variety of ways, offering invaluable properties in many engineering scenarios. C103 copper is generally identified by its low electrical transformer resistance, excellent surface wear characteristics, and uniformed corrosion protection standard. It can also work extremely well when it comes to pressure seals, as it has a high lubricity, which makes it highly suitable for moderate loads and long life; making it a great choice for thermal management materials and pistons. Overall, C103 Alloy copper offers exceptional strength, durability and provides unique characteristics that make it perfect for many different manufacturing solutions.

What Forms is C103 Copper Available at Piping Mart?

  • Copper C103 Nuts
  • Copper C103 Bars
  • Copper C103 Bolts
  • Copper C103 Pipes
  • Copper C103 Screw
  • Copper C103 Tubing
  • Copper C103 Valves
  • Copper C103 Washers
  • Copper C103 Flanges
  • Copper C103 Fasteners
  • Copper C103 Electrodes
  • Copper C103 Stud Bolts
  • Copper C103 Sheet Plates

C103 Copper Composition

As mentioned earlier, C103 Copper is made up of 99.3% pure copper and 0.7% phosphorus; there are no other elements in the alloy. The combination of these two elements gives Copper C103 its unique mechanical and physical characteristics that make it suitable for many applications, such as welding and machining.










C103 Copper Chemical Properties

Copper C103 Grades has excellent electrical conductivity due to its high copper content; this makes it ideal for use in electrical components such as wiring or transformers where maximum conductivity is desired. In addition to this, its low phosphorus content also makes it resistant to oxidation in air, even at elevated temperatures.

C103 Copper Mechanical Properties

The tensile strength of Copper C103 is around 30 ksi while its yield strength is around 16 ksi; both values are significantly higher than those of pure copper (8-10 ksi). This feature makes it suitable for use in applications where high strength and toughness are required, such as valves or fasteners. Furthermore, due to the presence of phosphorus in the alloy, it has good ductility, which means that it can be deformed without fracturing or breaking; this further increases its suitability for machining processes such as casting or forging, where shape retention is desired after deformation.

Tensile strength
Elastic limit
0.2 % (MPa)
minimum W50mm
Electric conductivity
% IACS (b) max.
Specific weight
Approx. g / cm3

200 to? 360

? 100 a? 320

(? 2.5 mm) 42 to 2

96.6 to 100

40 a? 110



C103 Copper Physical Properties

Copper C103 Material has a density of around 8 g/cm3, which is slightly higher than that of pure copper (8.9 g/cm3). This feature makes it useful for applications where a combination of lightweight with increased strength is desired, such as automotive components or aerospace components. It also has a melting point range between 1800-2000°C which means that it can be used in high-temperature environments without losing any mechanical or physical characteristics due to melting or softening; this further increases its range of potential uses.

Thermal expansion coefficient from -191ºC to 16 ° C 16.9 10-6 / K
Thermal expansion coefficient from 0ºC to 300 ° C 17.7 10-6 / K
Specific heat capacity 0.385 J / (g · K)
Thermal conductivity 385 W / (m · K)
Electrical conductivity (1 MS / m = 1 m / (? Mm²) ? 57 MS / m
Electrical conductivity (IACS) 98 %
Thermal coefficient of electrical resistance (0 .. 200 ° C) 3.7 10-3 / K
Modulus of elasticity (1 GPa = 1 kN / mm²) cold annealed 132 GPa

C103 Copper Alloy Equivalent

  • C10200
  • CW008A
  • BS1432
  • BS1433
  • BS2870
  • BS2875
  • BS3839
  • ASTM B152
  • 2.0040
  • NF A51-118-1
  • Cu-OF
  • Cu-C1 (FR)
  • OF-Cu (DE)

C103 copper Specifications

BS2874 / BS1433: C103 C10200
BS EN13601:CW008A Cu-OF

2.0040 Copper Uses

Copper C103 2.0040 has become an increasingly popular choice for a wide range of applications due to its excellent electrical and thermal conductivity, corrosion resistance, and formability. It is well-suited for use in electrical wiring, plumbing systems, heat exchangers, and motor components. Its strength ensures that it can withstand exposure to extreme temperatures and still retain its shape with minimal deformation. Copper C103 is also known for having one of the highest levels of machinability among all available copper grades, which makes it perfect for engineering projects where precision is key. By harnessing all the beneficial characteristics that this type of copper offers, many industries have seen dramatic improvements in product performance while keeping costs low.

  • Copper is an essential mineral that the body needs in small amounts to maintain good health.
  • Copper plays a role in many important processes in the body, including the production of energy, the absorption of iron, and the protection of cells from damage.
  • Copper can be found in a variety of foods, including meats, seafood, nuts, seeds, and whole grains.
  • The recommended daily intake of copper for adults is 1-3 milligrams per day.
  • Some people may need more or less copper depending on their age, health status, and other factors.
  • Copper supplements are available for those who need to increase their intake of this mineral.
  • Copper deficiency is rare but can lead to problems such as anemia and osteoporosis.
  • Too much copper can also be harmful and can cause problems such as liver damage and gastrointestinal issues.
  • It is important to speak with a healthcare provider before taking any supplements, as they can interact with medications and other nutrients.
  • Copper is an essential mineral that plays a vital role in many processes in the body. A healthy diet rich in copper-containing foods is the best way to ensure adequate intake of this important nutrient


Copper C103 welding necessitates special attention to detail, given that it is a unique form of welding with unique parameters. It requires pre-heating the copper and controlling the heat transfer afterward. The welder needs to be highly knowledgeable in both techniques and safety protocols to get proper, strong welds out of copper C103 welding joints. Moreover, skilled welders should also know how to minimize any warping in the copper joint as a result of its high thermal conductivity and corresponding expansion due to the intense heat. All things considered, mastering this process can take substantial practice and experience before any successful projects can be attained with confidence and reliability.

Corrosion Resistance

Copper C103 is known for its superior level of corrosion resistance, that makes it ideal for outdoor projects and applications. Its densely applied wax coating helps to provide an additional barrier against the elements, while its brass construction naturally makes it more durable than other metals. This alloy also offers excellent strength and special electrical properties, making it a great choice for projects like wiring or relays. By having all of these characteristics, 2.0040 has become a go-to solution for many needing reliable protection from various corrosives in their everyday tasks.

Heat Resistance

Copper Alloy C103 is widely known for its superior heat resistance when compared to other common metals. It has been proven to outperform many of its competitors in industrial settings and is widely used in applications where extreme temperatures are sometimes encountered. Its ability to withstand high temperatures makes it the ideal choice for anything from electrical wiring, HVAC systems, and heavy machinery components to automotive parts, consumer electronics, and cookware. Copper C103 is a reliable material that can help you create products that will stand the test of time at high temperatures.

Heat Treatment

Heat treatment of copper C103 alloy can have dramatic effects on the properties of the material, making it feasible for numerous applications. By subjecting the copper alloy to a combination of heating and cooling processes, its strength and durability can be significantly increased. The heat treatment process is also known to improve the machinability of copper C103, allowing it to be used in more complex parts that may require additional shaping or machining. In addition, this particular heat treatment method ensures maximum corrosion resistance, making it an ideal choice for products that need to last in outdoor environments. Heat-treating copper C103 has proven itself to be one of the most reliable methods of increasing structural performance while preserving compatibility with existing machinery and processes.


Copper C103 machining is a precision process that has been used to create a wide range of finished products. From intricate medical tools to finely crafted musical instruments, copper C103 machining has helped fabricators produce high-quality results, regardless of the complexity of the project. This process can also be used on other metals, such as brass and stainless steel. Copper C103 machining relies on experienced engineers who understand the metal’s unique properties, along with specialized machines that guarantee repeatability and accuracy in the finished product. By combining the technical knowledge of these experts with modern machining technologies, customers can rest assured that their projects will be completed to their exact specifications.


With all these advantages, combined with excellent corrosion resistance and heat resistance properties, make Copper C103 an ideal choice for many applications, including welding, machining, and various other industrial processes requiring metals with specific characteristics like hardness or ductility, etc. Its ability to retain mechanical and physical properties even at elevated temperatures allows it to be used in a wide range of industries, from automotive to aerospace, without compromising on performance or safety standards required by these industries. Therefore if you are looking for an alloy grade with good strength and toughness, then look no further than Copper C103!

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