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Beryllium copper

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Beryllium copper is an alloy material made by mixing copper and beryllium. Generally speaking, the content of beryllium copper ranges from 1% to 2%, and different processes and uses may vary. Due to the addition of beryllium, beryllium copper has high hardness and strength, as well as good elasticity and conductivity. These characteristics make beryllium copper widely used in some special fields.

Beryllium copper

What is beryllium copper(BeCu)？

Beryllium copper, also known as beryllium bronze, is the "king of elasticity" in copper alloys. After solid solution aging heat treatment, products with high strength and high conductivity can be obtained. High strength cast beryllium bronze alloy, after heat treatment, not only has high strength and high hardness, but also has advantages of wear and corrosion resistance, excellent casting performance. Beryllium bronze alloy is suitable for manufacturing various molds, explosion-proof safety tools, wear-resistant parts such as cams, gears, worm gears, bearings, etc. High conductivity cast beryllium copper alloy, after heat treatment, has high conductivity and thermal conductivity. Beryllium copper alloy is suitable for manufacturing switch parts, strong contact and similar current carrying components, making clamps for resistance welding, electrode materials and plastic molds, and inner sleeves of crystallizers for water and electricity continuous casting machines.
[Beryllium Copper encyclopedia]

Beryllium copper type

Beryllium copper C17200

C17200 is a copper beryllium alloy, also known as beryllium copper. Its chemical composition is copper (Cu) and beryllium (Be), with a copper content of over 98% and a beryllium content between 1.8% and 2.0%. It has excellent properties such as high strength, high conductivity, corrosion resistance, and ease of processing, and is widely used in the manufacturing of high-performance parts in fields such as electronics, machinery, automobiles, aerospace, etc.
Physical properties: high density, good thermal conductivity, good conductivity, high elastic modulus, and low linear expansion coefficient.
Mechanical properties: high strength, good wear resistance, good corrosion resistance, and easy processing.
Advantages: High strength, good conductivity, good corrosion resistance, and easy processing.
Disadvantages: The price is high, and protective measures need to be taken during processing.
Beryllium copper C17200 Chemical Composition:

Be content:	Co content:	Other components	Cu content:
1.9%-2.0%	0.3%-0.45%	0.3%	margin

Physical indicators and parameters of beryllium cobalt copper

Density	Conductivity	Thermal conductivity	Hardness before quenching	Hardness after quenching	Tensile strength
8.3g/cm	>18%IACS	>105w/m.k20℃	200-250HV	≥36-42HRC	>1000mPa

C17300(CuBe1.7) beryllium copper

C17300(CuBe1.7) beryllium copper is a wear-resistant copper with excellent hardness, excellent conductivity and tempering resistance. It has good verticality and is not easy to bend thin sheets, making it a good electrode for aviation material processing.
C17300(CuBe1.7) Beryllium Cobalt Copper Performance:
Beryllium cobalt copper has good processability and high thermal conductivity. In addition, Beryllium cobalt copper C17300 also has excellent weldability, corrosion resistance, polishing, wear resistance, and adhesion resistance. It can be forged into various shapes of parts, and the strength and wear resistance of beryllium cobalt copper C17300 are better than the physical properties of chromium zirconium copper alloy.
C17300 Beryllium Cobalt Copper Application: Medium strength and high conductivity components, such as fuse fasteners, springs, connectors, resistance spot welding heads, seam welding rollers, die-casting machine heads, plastic forming molds, etc.

C17300(CuBe1.7) beryllium copper element	C17300(CuBe1.7) Beryllium Copper Element Content
Be	1.8-2.0%
Cu	margin
Ni	0.2-0.6%
Si	0.15-0.5%
Mn	0.5-1.0%
Al	0.01-0.1%
S	≤0.06%
O	≤0.06%
P	≤0.02%
Co	≤0.10%
Mg	≤0.05%
Cr	≤0.05%
Sb	≤0.002%

Beryllium copper C17500(CuCoBe)

C17500(CuCoBe) beryllium bronze is a copper alloy with beryllium as the main alloying element, also known as beryllium bronze. It is the highest performing advanced elastic material among copper alloys, with a series of excellent mechanical, physical, and chemical properties such as high strength, elasticity, hardness, fatigue strength, small elastic hysteresis, corrosion resistance, wear resistance, cold resistance, high conductivity, non magnetism, and no spark generated during impact.
C17500(CuCoBe) is widely used in micro electromechanical brushes, switches, relays, connectors, spring plates for temperature controllers, various spring plates, mobile phone batteries, computers, automotive parts, advanced bearings, spectacle frames, gears, punches, various non-sparking switches, various welding electrodes, and precision casting molds. With the increasing demand for product reliability and service life, the demand for beryllium copper will also increase.
The properties and uses of C17500(CuCoBe) beryllium bronze:
C17500(CuCoBe) beryllium bronze is a supersaturated solid solution copper based alloy that combines mechanical properties, physical properties, chemical properties, and corrosion resistance. After solid solution and aging treatment, it has high strength limits, elastic limits, yield limits, and fatigue limits comparable to special steel. At the same time, it also has high conductivity, thermal conductivity, high hardness and wear resistance, high creep resistance and corrosion resistance, Widely used in the manufacturing of various mold inserts, replacing steel for high-precision and complex shaped molds, welding electrode materials, die-casting machines, injection molding machine punches, wear-resistant and corrosion-resistant work, etc. High quality beryllium copper is mainly used in micro electromechanical brushes, switches, relays, connectors, spring plates for temperature controllers, various spring plates, mobile phone batteries, computers, automotive parts, advanced bearings, spectacle frames, gears, punches, various spark free switches, various welding electrodes, and precision casting molds. It is an indispensable and important industrial material for national economic construction.
Beryllium copper C17500(CuCoBe) Chemical Composition:

NUMABERING	Be	Co+Ni	Cu	Pb	Si	Fe	Al
C17500	0.4-0.7	2.4-2.7			0.15	0.15	0.15

Physical indicators and parameters of beryllium cobalt copper

Tensile Strength	Thermal conductivity	Hardness	Hardness	Density :	Elongation	Electrical conductivity
650 MPa	W/m.k20 (≥195)	HV ≥210	HRC19-26	8.9g/cm3	≥55	58 IACS

Cast beryllium bronze is used for explosion-proof tools, various molds, bearings, bushing, bushing, gears and various electrodes.
[Beryllium Copper encyclopedia]

Beryllium copper C17510(CuNiBe)

C17510(CuNiBe) copper alloy: excellent performance and wide application
C17510 copper alloy is a high-quality copper alloy with a series of excellent physical, chemical, and mechanical properties. Its chemical composition includes 0.38-0.4% beryllium and 2.4-2.8% nickel. This alloy is strengthened through heat treatment, which means that special treatment is carried out during the manufacturing process of the alloy to improve its performance.
In terms of application fields, C17510 copper alloy has a wide range of applications. Firstly, it plays an important role in the manufacturing of explosion-proof tools and molds, as it has excellent corrosion resistance and wear resistance, suitable for tools and parts used in harsh environments. Secondly, this alloy is also widely used in fields such as bearings, bearing shells, and bushings, making it an ideal choice for high load work due to its high strength and fatigue resistance. In addition, C17510 copper alloy is also used in the manufacturing of gears and various electrodes, as its excellent conductivity and thermal conductivity make it play an important role in the electronic and electrical industries.
The relationship between component content and application field is inseparable. The addition of beryllium can significantly improve the hardness and strength of copper alloys, giving them excellent wear resistance and fatigue resistance, making them very suitable for manufacturing high-strength parts and tools. The addition of nickel enhances the heat resistance and corrosion resistance of copper alloys, making them excellent in high-temperature and corrosive environments.
Beryllium copper C17510(CuNiBe) Chemical Composition:

Be content:	Ni content:	Cu content:
0.2%-0.6%	1.40-2.20%	margin

Physical indicators and parameters of beryllium copper C17510(CuNiBe)

Density	Electrical conductivity	Softening temperature :	Thermal conductivity	Hardness after quenching	Tensile strength
8.9g/cm	≥ 50%IACS	600℃	≥210%w/m.k20℃	92-100HRB	510-800mPa

Beryllium copper C18000(CuNiCrSi)

C18000(CuNiCrSi) Main characteristics
1. C18000(CuNiCrSi) has high strength and hardness, conductivity and thermal conductivity, good wear resistance and wear reduction. After aging treatment, the hardness, strength, conductivity and thermal conductivity are significantly improved, making it easy to weld. 2. C18000(CuNiCrSi) chromium copper has good hardness, wear and explosion resistance, crack resistance, and high softening temperature. It has low electrode loss during welding, fast welding speed, and low total welding cost. It is suitable for electrode related pipe fittings in fusion welding machines, but it performs generally on electroplated workpieces.
Product form: copper bars, copper pipes, copper plates, copper sleeves, copper wires, copper rings, and copper forgings.
Application area
1. Widely used in motor commutators, spot welding machines, seam welding machines, electrodes for butt welding machines, and other high-temperature parts that require strength, hardness, conductivity, and pad conductivity.
2. By using the production of electric spark electrodes, ideal mirror surfaces can be produced, and the upright performance is good. It can achieve effects that pure red copper cannot achieve, such as thinning, and performs well on difficult to machine materials such as tungsten steel.
3. Various materials used for welding, conductive nozzles, switch contacts, mold blocks, and welding machine auxiliary devices in mechanical manufacturing industries such as automobiles, motorcycles, and barrels (cans).
Beryllium copper C18000(CuNiCrSi) Chemical Composition:
Physical property C18000(CuNiCrSi)

Cu	Ni	Cr	Si)	Fe	other
margin	1.8-3.0	0.10-0.8	0.40-0.8	0.15	0.65

Composition C18000(CuNiCrSi)
C18150(CuCrZr)

ConductivityIACS	Density g/cm	Thermal conductivity:	Thermal expansion coefficient:	Melting point:
45	8.9	200W/m.K	17.5×10^-6/°C	1040℃

Cast beryllium bronze is used for explosion-proof tools, various molds, bearings, bushing, bushing, gears and various electrodes.
[Beryllium Copper encyclopedia]

C18150(CuCrZr) beryllium copper

C18150(CuCrZr) Chromium zirconium copper is a wear-resistant copper with excellent hardness, excellent conductivity, and good tempering resistance. It has good verticality and is not easily bent in thin sheets, making it a good electrode for aviation material processing.
Hardness ≥ 75 (Brinell)
Density 8.95g/cm3
Conductivity ≥ 43MS/m
Softening temperature ≥ 550 ℃,
It is generally used for making welding machine electrodes, motor commutators, and other parts that require high strength, hardness, conductivity, and conductivity when working at high temperatures below 350 ℃. It can also be used in the form of bimetallic materials for brake discs and discs
C181500(CuCrZr) Application: This product is widely used in various materials such as welding, conductive nozzles, switch contacts, mold blocks, and welding machine auxiliary devices in mechanical manufacturing industries such as automobiles, motorcycles, and barrels (cans). Specifications: The specifications of bars and plates are complete and can be customized according to customer requirements. Quality requirements:
1. Eddy current conductivity meter is used for conductivity measurement, with an average value of ≥ 44MS/M measured at three points
2. The hardness is based on the Rockwell hardness standard, and the average of three points is taken to be ≥ 78HRB
3. Softening temperature experiment: After maintaining the furnace temperature at 550 ℃ for two hours, the hardness cannot be reduced by more than 15% compared to the original hardness after cooling with quenched water
Physical indicators: hardness:>75HRB, conductivity:>75% IACS, softening temperature: 550 ℃
Chrome-zirconium copper properties：
Chromium zirconium copper has good electrical conductivity, thermal conductivity, high hardness, wear resistance and explosion resistance, crack resistance and high softening temperature, welding electrode loss is less, welding speed is fast, the total cost of welding is low, suitable for welding welding machine electrode related pipe fittings, but the performance of electroplating parts is general.

Main chemical composition:
Cr	Zr	Mg	Fe	Si	P	Summation of impurities
0.1-0.8	0.1-0.6	0.1-0.25	0.5	0.5	0.1	0.5

Chrome zirconium copper main physical parameters:
Density g/cm3	Tensile strength N/mm2	stiffness HV	elongation %	Electrical conductivity(20℃)IACS(%)	Thermal conductivity(20℃)W/m.k
8.9	≥ 380	110-145	≥ 15	≥ 75	330