Copper Alloys

Copper-based alloys for bearings, bushings, wear rings, valve components and electrical work: nickel aluminium bronze C63000 and C95800, beryllium copper C17200 and tellurium copper C14500. Cut to size, no MOQ.

SKU CU Category
4 grades
C63000, C95800, C17200, C14500
760
MPa tensile strength, nickel aluminium bronze C63000
1,380+
MPa tensile strength, beryllium copper C17200
90%
IACS electrical conductivity, tellurium copper C14500

Copper Alloys for bearings, bushings and electrical work.

Copper-based alloys combine corrosion resistance, wear resistance and conductivity in ways steel cannot. E STEEL SDN BHD supplies nickel aluminium bronze for seawater and wear service, beryllium copper for springs and connectors, and tellurium copper for machined electrical parts, cut to size with no minimum order quantity.

Typical uses include bearings, bushings, wear rings, valve components and electrodes.

Grades covered

Nickel Aluminium Bronze C63000 (AMS 4640)

Nickel-Aluminium-Bronze, C63000, AMS4640

Nickel-Aluminium-Bronze (UNS C63000)

UNS C63000 is a nickel-aluminium-bronze alloy of copper, which has excellent corrosion resistance and hot formability features. The following datasheet will provide more details about copper UNS C63000.

Chemical Composition

ElementContent (%)
Copper, Cu82
Aluminium, Al10
Nickel, Ni5
Iron, Fe3

Physical Properties

PropertiesMetricImperial
Density7.58 g/cm³0.274 lb/in³
Melting point1035°C1895°F

Mechanical Properties C63000

PropertiesMetricImperial
Tensile strength760 MPa110000 psi
Yield strength470 MPa68200 psi
Elongation at break (in 50 mm, 10% reduction in area)10%10%
Elastic modulus117 GPa17000 ksi
Poisson’s ratio0.340.34
Reduction of area (at 316°C/601°F, cold finished)9%9%
Shear modulus44.0 GPa6380 ksi
Fatigue strength (at number of cycles 1.00e+8, reverse bending)255 MPa37000 psi
Hardness, Rockwell B9494
Machinability (UNS C63000 (free-cutting brass) = 100)3030

Thermal Properties

PropertiesMetricImperial
Thermal expansion co-efficient (at 20-300°C/68-572°F)16.2 µm/m°C9 µin/in°F
Thermal conductivity (at 20°C/68°F)37.7 W/mK262 BTU in/hr.ft².°F

Welding

Brazing, gas shielded arc welding, coated metal arc welding, spot welding, seam welding, and butt welding are considered as suitable welding processes, whereas processes such as Soldering and oxyacetylene welding are not recommended for UNS C63000 alloy.

Applications

Copper UNS C63000 is used for valve and pump components in industrial process streams. It is also used in marine equipment, high strength fasteners and pole line hardware.

Copper Alloy C95800 (ASTM B148)

COPPER ALLOY C95800, UNS C95800, ASTM B148, C9580

COPPER ALLOY C95800, UNS C95800, ASTM B148, C9580

C95800 is a nickel aluminium bronze copper casting alloy offers superior salt water corrosion resistance. It also is resistant to cavitation and erosion.

Chemical Composition C95800

ElementContent (%)
Cu, Copper79.0
Al, Aluminium8.50-9.50
Ni, Nickel3.50-4.50
Mn, Manganese0.80-1.50
Fe, Iron0.030
CHARACTERISTICS
• Excellent strength and ductility even at low temperatures
• Good casting qualities
• Excellent shock & wear resistance
• Good machinability
• Good thermal and electrical conductivity
• Suitable for welding
• Exceptional corrosion resistance
MECHANICAL PROPERTIES
PropertyValue
Elongation A50 mm15 %
Hardness Rockwell B88 HRB
Tensile Strength586 MPa

Applications for Aluminium Bronze

Aluminium bronze alloys are used in marine hardware, shafts, and pump and valve components for handling seawater, sour mine waters, non-oxidizing acids, and industrial process fluids. Aluminium bronze castings have exceptional corrosion resistance, high strength, toughness, and wear resistance.

Beryllium Copper C17200 (Alloy 25)

Beryllium copper | UNS C17200 | 2.1247 | Alloy 25 | Din 17672

Beryllium Copper UNS C17200

UNS C17200 beryllium copper alloys are ductile and produced in mill hardened and heat treatable tempers. These alloys are used for all applications, which require high strength, stiffness and good conductivity. The tensile strength of C17200 copper is over 1380 MPa (200 ksi).

Chemical Composition
AlBeCoCuSi
Min/Max0.21.8 – 2.00.20 minRem0.2
Nominals–1.9–98.1–
Physical Properties
Coefficient of Thermal Expansion17.8 × 10⁻⁶ per °C (20-300 C)
Density8.25 gm/cm3 @ 20 C
Electrical Conductivity0.129 MegaSiemens/cm @ 20 C
Electrical Resistivity7.68 microhm-cm @ 20 C
Melting Point Liquid US982 C
Melting Point Solid US866 C
Modulus of Elasticity in Tension128000 MPa
Modulus of Rigidity50330 MPa
Specific Gravity8.26
Specific Heat Capacity419.0 J/kg . °K at 293 K
Thermal Conductivity107.3 W/m . °K at 20 C

Applications

The following are the major applications of the UNS C17200 copper:

Tellurium Copper C14500 (Alloy 145)

Copper Tellurium | Alloy 145 | UNS C14500

Alloy 145 , Tellurium Copper ( C14500 )

Tellurium copper—also referred to as Alloy 145, Alloy C14500, 145 half-hard tellurium, and TeCu—is a copper-based alloy that contains varying amounts of tellurium and phosphorus. The tellurium content typically ranges between 0.4–0.7%, while the phosphorus content ranges between 0.004–0.12%.

Tellurium copper demonstrates good electrical and thermal conductivity, good formability and high machinability. These properties make it suitable for a wide range of industrial applications.

Tellurium Copper Chemical Composition (%max., unless shown as range or min.)
Cu(1)(2)PTe
Min./Max.99.90 min.004-.012.40-.7
Nominal99.50.008.55

Properties of Tellurium Copper

Mechanical, chemical, electrical, and characteristic of tellurium copper include:

Resistance to atmospheric corrosion

High thermal (205 BTU/ft2/ft/hr/°F) and electrical conductivity (90% as per IACS)

Resistance to hydrogen embrittlement (i.e., fracturing and weakening caused by the introduction and diffusion of hydrogen)

Tensile strength of 47,900 psi (approximately 38 to 48 ksi)

Yield strength of 44,200 psi (approximately 30 to 40 ksi)

Elongation capabilities ranging between 4–12%

Hardness between 65–130 HV

Structural integrity up to 350° Celsius

Good formability (for cold and hot forming processes)

Machinability rating of 85–90% (where free cutting brass is 100)

Suitability for soldering and brazing

Unsuitability for specific welding processes, such as coated metal arc welding, oxy-acetylene welding, resistance welding, seam welding, or spot welding

Material is according to EN 12164 R250 (Half-hard) condition.

What is tellurium copper used for?

Due to its unique properties—such as its corrosion resistance, machinability and electrical, and thermal conductivity—tellurium copper finds application in a variety of industries, including:

Why Choose E STEEL SDN BHD?

Precision Cutting

Bandsaw technology ensures minimal kerf loss and clean, burr-free edges.

Custom Sizes

Cut to the size your job needs. No minimum order quantity.

Certifications

Mill test reports (MTRs) for traceability.

Global Logistics

Fast air and sea shipping with real-time tracking.

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Need precision-cut material? Request a quote.

No MOQ, shipped globally from Malaysia. Send us the size and we will cut it.