ThePipingMart Blog Grades Copper C145 (C14500) – Composition, Properties and Uses

Copper C145 (C14500) – Composition, Properties and Uses

Copper C145

C14500 is a copper-based alloy that offers a wide range of benefits due to its unique combination of physical, mechanical, and chemical properties. This material is heat-resistant, corrosion-resistant, and highly machinable. It also has excellent welding properties and can be used in various applications. In this blog post, we will take a closer look at the composition, chemical properties, mechanical properties, physical properties, uses corrosion resistance, heat resistance, heat treatment, machining and welding capabilities of Copper C145.

C14500 Composition

Cu C145 is composed primarily of copper with other minor elements, such as iron and zinc, which enhance its strength and hardness. This material’s chemical composition makes it highly resistant to corrosion from acidic environments or salt water spray. This makes it ideal for marine or industrial applications where corrosion resistance is critical.

Cu%1,2 P% Te%

C14500 Chemical Properties

The low sulfur content gives this alloy superior electrical conductivity compared to other copper alloys.

C14500 Mechanical Properties

The mechanical properties of Copper C145 make it an excellent choice for high-strength applications such as automotive components or fasteners. It has an excellent tensile strength (550-650 MPa) and yield strength (200-300 MPa). Its elongation ranges from 10-20%. This material also has good ductility, which makes it easier to form shapes when machining or welding.

Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, 4x Diameter or Specimen Thickness, min Brinell Hardness (500 kg load) Remarks
Ksi MPa Ksi MPa % typical BHN
38 260 30 205 8 76

C14500 Physical Properties

Additionally, its high thermal conductivity makes it an effective heat sink material in electronics applications where cooling is necessary.

US Customary Metric
Melting Point – Liquidus 1976 °F 1080 °C
Melting Point – Solidus 1924 °F 1051 °C
Density 0.323 lb/in3 at 68 °F 8.94 gm/cm3 at 20 °C
Specific Gravity 8.94 8.94
Electrical Conductivity 93% IACS at 68 °F 0.539 MegaSiemens/cm at 20 °C
Thermal Conductivity 205 Btu/sq ft/ft hr/°F at 68 °F 355 W/m at 20 °C
Coefficient of Thermal Expansion 68-212 9.5 · 10-6 per °F (68-212 °F) 16.5 · 10-6 per °C (20-100 °C)
Coefficient of Thermal Expansion 68-392 9.7 · 10-6 per °F (68-392 °F) 16.8 · 10-6 per °C (20-200 °C)
Coefficient of Thermal Expansion 68-572 9.9 · 10-6 per °F (68-572 °F) 17.1 · 10-6 per °C (20-300 °C)
Specific Heat Capacity 0.092 Btu/lb/°F at 68 °F 385.5 J/kg at 20 °C
Modulus of Elasticity in Tension 17000 ksi 117212 MPa
Modulus of Rigidity 6400 ksi 44127 MPa

C14500 Equivalents

CDA ASTM SAE AMS Federal Military Other
C14500 B124
Tellurium-Bearing (PTE)

C14500 Thermal Properties

Treatment Minimum* Maximum*
Annealing 800 1200
Hot Treatment 1400 1600

C14500 Uses

Additionally, its machinability makes it helpful in creating intricate shapes or designs needed for complex parts such as gears or bearings. Finally, its weldability allows for the easy joining together of multiple parts into one cohesive piece without losing any structural integrity during the

Corrosion Resistance

As previously mentioned, Copper C145 has excellent corrosion resistance making it ideal for use in marine and industrial applications where exposure to harsh environmental conditions is common. It can also be used in electrical components due to its low sulfur content, which ensures minimal electrical resistance when conducting current through the material.

Heat Resistance

Copper C145 offers good heat resistance making it suitable for use in high-temperature environments where temperatures exceed 650°C (1200°F). The alloy can retain its shape at these temperatures without deforming or becoming brittle like some other metals would at higher temperatures.

Heat Treatment

Depending on the application requirements, this material can be treated with various heat treatments to improve its strength and hardness further.


In terms of machining capabilities, these materials can easily be cut using standard cutting tools such as drills and saws; however, they require extra care due to their tendency to work hard during fabrication processes, leading to increased tool wear rates over time if not monitored closely enough during production runs.


As far as welding goes, these alloys are fairly easy to join together using either MIG or TIG welding techniques; however, the flux should always be used when possible, as this will ensure a strong joint between two pieces of metal without sacrificing any structural integrity during the process itself.


The many benefits offered by Copper C145 make this alloy an attractive option for use in a variety of industries ranging from automotive manufacturing to electronics production due to its combination of physical properties such as high tensile strength and superior corrosion resistance combined with its ease of use when being subjected to heat treatments or machined into intricate shapes using standard toolsets found on most shop floors today! With all these advantages taken into account, there’s no denying that this alloy should be considered when designing components that require exceptional performance characteristics under demanding conditions!

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