Beryllium Copper Products

Other Beryllium Copper Products

Fabricated Product

Whereas NGK supplies beryllium and beryllium copper products as "raw material" for customers, we also provide these materials in finished shape according to customers' request. With expertise in material process and characters, NGK produces the finished shape at its maximum performance.

Physical Properties of Beryllium Copper

ItemsUnitHigh Strength Alloy
BeA - 25BeA - 165
Specific Gravity 8.26
Melting Points°C 865 - 980
Coefficent of Thermal Expansion(20 - 200°C) 17 x 10-6
Thermal Conductivitycal/cm2/cm/sec/°C 0.26 - 0.31
Volume ResistivityμΩ-cm 6.0 - 7.8
Electrical ConductivitylACS% 22 - 29
Specific Heat(30 - 300°C)
cal/g/°C
0.1
Modulus of ElasticitykN/mm2 127
Magnetism none
ItemsUnitHigh Conductive Alloy
BeA - 10BeA - 11BeA - 50
Specific Gravity 8.75 8.75 8.83
Melting Points°C 1029 - 1070 1004 - 1070 1020 - 1110
Coefficent of Thermal Expansion(20 - 200°C) 17.6 x 10-6 17.6 x 10-6 17.6 x 10-6
Thermal Conductivitycal/cm2/cm/sec/°C 0.49 - 0.62 0.49 - 0.62 0.49 - 0.62
Volume ResistivityμΩ-cm 3.1 - 3.6 2.9 - 3.4 2.9 - 3.4
Electrical ConductivitylACS% 50 - 60 50 - 60 50 - 60
Specific Heat(30 - 300°C)
cal/g/°C
0.1 0.1 0.1
Modulus of ElasticitykN/mm2 132 132 132
Magnetism none none none

Mechanical Properties of Beryllium Copper

AlloyTemperT/S0.2% Yield StrengthElongationHardness
N/mm2N/mm2%HR
BeA - 25A 410 - 590 135 - 205 35 - 60 B 45 - 85
H 590 - 900 520 - 725 10 - 20 B 88 - 103
AT 1100 - 1375 930 - 1205 2 - 8 C 34 - 45
HT 1205 - 1470 1030 - 1375 2 - 5 C 37 - 45
BeA - 165A 410 - 590 135 - 205 35 - 60 B 45 - 85
AT 980 - 1245 865 - 1060 2 - 10 C 32 - 40
BeA - 10A 235 - 390 135 - 205 20 - 35 B 20 - 50
AT 685 - 835 490 - 685 10 - 25 B 92 - 105
BeA - 11A 235 - 390 135 - 205 20 - 35 B 20 - 50
AT 685 - 885 490 - 685 10 - 25 B 92 - 105
BeA - 50A 235 - 390 135 - 205 20 - 35 B 20 - 50
AT 635 - 835 490 - 685 8 - 20 B 92 - 105

A : Solution Annealed
AT : Solution Annealed + Age Hardened
H : Solution Annealed + Cold Worked
HT: Solution Annealed + Cold Worked + Age Hardened

Comperison of Mechanical Properties

AlloyT/SRockwell HardnessElongationElectrical ConductivityThermal Cond.
N/mm2R&C Scale%%IACScal/cm2/cm/°C
BeA - 25 1175 C38 2 25 0.25
BeA - 50 785 B96 15 55 0.45
Aluminum Bronze 735 B90 18 10 0.13
Copper-Chromium Alloy 540 B75 15 80 0.77
High Strength Brass 590 B80 15 20 0.22
Phosphor Bronze 490 B70 20 10 0.13
18-8 Stainless Steel 635 B80 55 2 0.04
Steel 490 B70 50 8 0.1

Electrode & Mechanical Part

Electrode

Electrode

Mechanical Parts

Mechanical Parts

Product TypeCharactersApplications
Electrode [RWMA Class 3 & 4] High Strength Electrical Conductivity Bat Welder Spot Welding Holder Gun Arm Welding Socket, Adapter
Mechanical Parts High Strength Wear Resistance Corrosion Resistance Aircraft Bushing Die Cast Machine Plunger Tip Cutting Blade for Crusher

Cable Housing

Cable Housing

The signals of undersea optical fiber communication cables used for international telephone transmission have been weakened as the signals go forward. In order to re-strengthen the signals, the repeaters are placed at certain intervals. The beryllium-copper is applied as the material of the repeater housing, which requires severe properties, such as corrosion-resistance against seawater and high-strength.

Beryllium Copper Ingot

Beryllium Copper Ingot

Containing less than 3% beryllium with other elements, beryllium copper ingot has unique characteristics, such as the high strength and spring properties of special steel, as well as non-sparking properties, electric conductivity, wear resistance, and corrosion resistance. Its application is in wide range.

BeA - 20C (Beryllium Copper Alloy 20C)

High strength, hardness, wear resistance and excellent fluidity. Ideal for investment, shell, sand, ceramic castings. Meets requirements for Class 4 RWMA resistance welding. Excellent replication of intricate detail.

Chemical Composition

BeCoCu
1.90 - 2.20% 0.60 - 0.95% Bal.

Physical Properties

Density g/cm2 at20°C 8.09
Melting Points °C 870 - 950
Coefficient of Thermal Expansion /°C at20 - 300°C 17x10-6
Thermal Conductivity cal/cm2/cm/sec/°C 0.22 - 0.28
Electrical Conductivity %IACS at20°C 23 - 28
Specific Heat cal/g/°C 0.1
Modulus of Elasticity kN/mm2 127

Mechanical Properties

Tensile Strength N/mm2 1030 - 1205
0.2% Yield Strength N/mm2 825 - 1030
Elongation % 1 - 5
Hardness HR C 35 - 42

BeA - 275C (Beryllium Copper Alloy 275C)

Highest strength and hardness of BeCu alloys; excellent wear resistance and fluidity. For extremely fine detail pick-up in ceramic or pressure cast processes. Lowest pouring temperature of BeCu alloys allows most any type of molding process to be used.

Chemical Composition

BeCoCu
2.50 - 2.75% 0.60 - 0.95% Bal.

Physical Properties

Density g/cm2 at20°C 8.09
Melting Points °C 870 - 950
Coefficient of Thermal Expansion /°C at20 - 300°C 17x10-6
Thermal Conductivity cal/cm2/cm/sec/°C 0.20 - 0.30
Electrical Conductivity %IACS at20°C 17 - 23
Specific Heat cal/g/°C 0.1
Modulus of Elasticity kN/mm2 132

Mechanical Properties

Tensile Strength N/mm2 1175 - 1275
0.2% Yield Strength N/mm2 1080 - 1225
Elongation % 0.5 - 3
0.5 - 3 HR C 42 - 48

Aluminum Beryllium Ingot

Aluminum Beryllium Ingot

Containing less than 3% beryllium, aluminum beryllium master alloy is used in the manufacture of aluminum alloys.

Chemical Composition

BeSiFeCuAl
2.0 - 2.99% 0.4% max 0.4% max 0.4% max Bal.

Inquiry about Specialty Metals Business

Sales & Marketing Division