ThePipingMart Blog Grades Copper Alloys UNS C19100 – Composition, Properties And Uses

Copper Alloys UNS C19100 – Composition, Properties And Uses

UNS C19100

Copper alloys have been used extensively in various industries owing to their excellent properties, such as high conductivity, good corrosion resistance, and ease of fabrication. UNS C19100 is one such copper alloy with desirable properties, making it ideal for numerous industrial applications. This blog post will outline everything about UNS C19100, including its composition, physical and mechanical properties, uses, hardness, heat treatment, welding, and corrosion resistance.

UNS C19100 Composition

UNS C19100 is a copper alloy that contains 91% copper, 8% zinc, and 1% iron. This alloy is also known as “Copper Iron” due to its iron content as an alloying element. The addition of zinc enhances the mechanical properties of copper and improves its wear resistance.

Element Content (%)
Nickel, Ni 0.9-1.3
Tellurium, Te 0.35-0.6
Iron, Fe 0.2
Phosphorous, P 0.15-0.35
Lead, Pb 0.1
Zinc, Zn 0.5
Copper, Cu Remainder

UNS C19100 Physical Properties

UNS C19100 exhibits excellent physical properties that make it ideal for various industrial applications. It has a density of 8.8 g/cm³, a 25.4 W/m.K thermal conductivity, and a specific heat capacity of 0.380 J/g.K. Additionally, it has a melting point of 957°C and a coefficient of thermal expansion of 17.6 µm/m.K.

UNS C19100 Mechanical Properties

UNS C19100 exhibits remarkable mechanical properties such as high tensile strength, good ductility, and excellent wear resistance. It has a tensile strength of 600 MPa, yield strength of 250 MPa, and an elongation percentage of 14%. Furthermore, it has good fatigue resistance, which is ideal for various structural applications.

Temper Tensile Str. Yield Str. Rockwell
B C F 30T
M10 248MPa (36ksi) 69MPa (10ksi) 35
310MPa (45ksi) 83MPa (12ksi) 50
400MPa (58ksi) 262MPa(38ksi) 70 97

UNS C19100 Equivalent

  • Copper UNS C19100 has a copper content of not less than 98.2%.

UNS C19100 Uses

UNS C19100 has numerous applications in various industries. It is mainly used in electrical components, such as switches, connectors, and terminals, owing to its excellent conductivity. Due to its high corrosion resistance, it is also used in marine applications, such as propellers and valves. Additionally, due to its excellent wear resistance, UNS C19100 manufactures industrial machinery components such as gears, bearings, and shafts.

UNS C19100 Hardness

UNS C19100 has a Rockwell hardness of B60 and a Brinell hardness of 174 Hb. The hardness of this alloy can be increased by cold working, followed by age-hardening. This process provides excellent strength and wears resistance properties.

UNS C19100 Heat Treatment

UNS C19100 is typically used in as-cast form or cold-worked conditions without heat treatment. However, it can be easily annealed at 550°C to increase its ductility and reduce the risk of stress corrosion cracking.

UNS C19100 Welding

UNS C19100 exhibits excellent weldability properties. It can be welded using gas tungsten arc welding (GTAW) or gas metal arc welding (GMAW) processes. However, a suitable filler metal is essential to avoid cracking or porosity in the weldment.

UNS C19100 Corrosion Resistance

UNS C19100 is highly resistant to corrosion due to its zinc content. It resists various mediums, such as seawater, alkaline solutions, and organic acids. Additionally, it has excellent resistance to stress corrosion cracking, making it ideal for marine and industrial applications.


UNS C19100 is a copper alloy with excellent properties, making it ideal for numerous industrial applications. It is mainly used in electrical components, marine applications, and industrial machinery components. It exhibits impressive mechanical properties, such as high tensile strength and good ductility, making it ideal for structural applications. UNS C19100 is highly resistant to corrosion and can be easily welded and heat-treated, making it a versatile and reliable material for various applications.

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