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Copper-Cobalt-Beryllium alloy, UNS C17500, TB00 Temper strip, rod, bar, plate, tubing, forged products
Categories: Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy
Material Notes: Good to excellent corrosion resistance. Excellent cold workability; good hot formability.

Applications: fuse clips, fasteners, springs, switch and relay parts, electrical conductors, welding equipment.

TB00 temper strip, rod, bar, plate, tubing, and forged products.
Key Words: BeCu; low beryllium copper, C112, ISO CuCo2Be, CEN CW104C, A3/1
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 8.75 g/cc0.316 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 20 - 5020 - 50Rod, bar, plate, tubing, forged products
 28 - 5028 - 50Strip
Tensile Strength, Ultimate 240 - 380 MPa34800 - 55100 psi
 360 MPa
@Treatment Temp. 315 °C,
Time 900 sec		52200 psi
@Treatment Temp. 599 °F,
Time 0.250 hour		aging
 395 MPa
@Treatment Temp. 315 °C,
Time 7200 sec		57300 psi
@Treatment Temp. 599 °F,
Time 2.00 hour		aging
 400 MPa
@Treatment Temp. 370 °C,
Time 900 sec		58000 psi
@Treatment Temp. 698 °F,
Time 0.250 hour		aging
 430 MPa
@Treatment Temp. 315 °C,
Time 14400 sec		62400 psi
@Treatment Temp. 599 °F,
Time 4.00 hour		aging
 450 MPa
@Treatment Temp. 425 °C,
Time 900 sec		65300 psi
@Treatment Temp. 797 °F,
Time 0.250 hour		aging
 460 MPa
@Treatment Temp. 315 °C,
Time 21600 sec		66700 psi
@Treatment Temp. 599 °F,
Time 6.00 hour		aging
 490 MPa
@Treatment Temp. 315 °C,
Time 28800 sec		71100 psi
@Treatment Temp. 599 °F,
Time 8.00 hour		aging
 530 MPa
@Treatment Temp. 540 °C,
Time 900 sec		76900 psi
@Treatment Temp. 1000 °F,
Time 0.250 hour		aging
 530 MPa
@Treatment Temp. 480 °C,
Time 900 sec		76900 psi
@Treatment Temp. 896 °F,
Time 0.250 hour		aging
 630 MPa
@Treatment Temp. 370 °C,
Time 7200 sec		91400 psi
@Treatment Temp. 698 °F,
Time 2.00 hour		aging
 685 MPa
@Treatment Temp. 540 °C,
Time 28800 sec		99400 psi
@Treatment Temp. 1000 °F,
Time 8.00 hour		aging
 690 MPa
@Treatment Temp. 540 °C,
Time 21600 sec		100000 psi
@Treatment Temp. 1000 °F,
Time 6.00 hour		aging
 700 MPa
@Treatment Temp. 540 °C,
Time 14400 sec		102000 psi
@Treatment Temp. 1000 °F,
Time 4.00 hour		aging
 725 MPa
@Treatment Temp. 540 °C,
Time 7200 sec		105000 psi
@Treatment Temp. 1000 °F,
Time 2.00 hour		aging
 730 MPa
@Treatment Temp. 370 °C,
Time 14400 sec		106000 psi
@Treatment Temp. 698 °F,
Time 4.00 hour		aging
 780 MPa
@Treatment Temp. 370 °C,
Time 21600 sec		113000 psi
@Treatment Temp. 698 °F,
Time 6.00 hour		aging
 790 MPa
@Treatment Temp. 480 °C,
Time 28800 sec		115000 psi
@Treatment Temp. 896 °F,
Time 8.00 hour		aging
 805 MPa
@Treatment Temp. 480 °C,
Time 21600 sec		117000 psi
@Treatment Temp. 896 °F,
Time 6.00 hour		aging
 810 MPa
@Treatment Temp. 370 °C,
Time 28800 sec		117000 psi
@Treatment Temp. 698 °F,
Time 8.00 hour		aging
 815 MPa
@Treatment Temp. 480 °C,
Time 7200 sec		118000 psi
@Treatment Temp. 896 °F,
Time 2.00 hour		aging
 815 MPa
@Treatment Temp. 480 °C,
Time 14400 sec		118000 psi
@Treatment Temp. 896 °F,
Time 4.00 hour		aging
 815 MPa
@Treatment Temp. 425 °C,
Time 7200 sec		118000 psi
@Treatment Temp. 797 °F,
Time 2.00 hour		aging
 850 MPa
@Treatment Temp. 425 °C,
Time 28800 sec		123000 psi
@Treatment Temp. 797 °F,
Time 8.00 hour		aging
 864 MPa
@Treatment Temp. 425 °C,
Time 14400 sec		125000 psi
@Treatment Temp. 797 °F,
Time 4.00 hour		aging
 864 MPa
@Treatment Temp. 425 °C,
Time 21600 sec		125000 psi
@Treatment Temp. 797 °F,
Time 6.00 hour		aging
Tensile Strength, Yield 140 - 205 MPa
@Strain 0.2 %		20300 - 29700 psi
@Strain 0.2 %
Elongation at Break 20 - 35 %20 - 35 %in 50 mm
 11 %
@Treatment Temp. 540 °C,
Time 28800 sec		11 %
@Treatment Temp. 1000 °F,
Time 8.00 hour		aging
 12 %
@Treatment Temp. 540 °C,
Time 21600 sec		12 %
@Treatment Temp. 1000 °F,
Time 6.00 hour		aging
 13 %
@Treatment Temp. 540 °C,
Time 14400 sec		13 %
@Treatment Temp. 1000 °F,
Time 4.00 hour		aging
 15 %
@Treatment Temp. 540 °C,
Time 7200 sec		15 %
@Treatment Temp. 1000 °F,
Time 2.00 hour		aging
 15 %
@Treatment Temp. 480 °C,
Time 14400 sec		15 %
@Treatment Temp. 896 °F,
Time 4.00 hour		aging
 15 %
@Treatment Temp. 370 °C,
Time 28800 sec		15 %
@Treatment Temp. 698 °F,
Time 8.00 hour		aging
 16 %
@Treatment Temp. 425 °C,
Time 28800 sec		16 %
@Treatment Temp. 797 °F,
Time 8.00 hour		aging
 16 %
@Treatment Temp. 480 °C,
Time 7200 sec		16 %
@Treatment Temp. 896 °F,
Time 2.00 hour		aging
 16 %
@Treatment Temp. 370 °C,
Time 21600 sec		16 %
@Treatment Temp. 698 °F,
Time 6.00 hour		aging
 16 %
@Treatment Temp. 480 °C,
Time 21600 sec		16 %
@Treatment Temp. 896 °F,
Time 6.00 hour		aging
 17 %
@Treatment Temp. 480 °C,
Time 28800 sec		17 %
@Treatment Temp. 896 °F,
Time 8.00 hour		aging
 17 %
@Treatment Temp. 425 °C,
Time 21600 sec		17 %
@Treatment Temp. 797 °F,
Time 6.00 hour		aging
 17 %
@Treatment Temp. 370 °C,
Time 14400 sec		17 %
@Treatment Temp. 698 °F,
Time 4.00 hour		aging
 18 %
@Treatment Temp. 370 °C,
Time 7200 sec		18 %
@Treatment Temp. 698 °F,
Time 2.00 hour		aging
 18 %
@Treatment Temp. 425 °C,
Time 14400 sec		18 %
@Treatment Temp. 797 °F,
Time 4.00 hour		aging
 19 %
@Treatment Temp. 425 °C,
Time 7200 sec		19 %
@Treatment Temp. 797 °F,
Time 2.00 hour		aging
 20 %
@Treatment Temp. 315 °C,
Time 28800 sec		20 %
@Treatment Temp. 599 °F,
Time 8.00 hour		aging
 21 %
@Treatment Temp. 315 °C,
Time 21600 sec		21 %
@Treatment Temp. 599 °F,
Time 6.00 hour		aging
 22 %
@Treatment Temp. 315 °C,
Time 14400 sec		22 %
@Treatment Temp. 599 °F,
Time 4.00 hour		aging
 24 %
@Treatment Temp. 315 °C,
Time 7200 sec		24 %
@Treatment Temp. 599 °F,
Time 2.00 hour		aging
 25 %
@Treatment Temp. 315 °C,
Time 0.000 sec		25 %
@Treatment Temp. 599 °F,
Time 0.000 hour		aging
 25 %
@Treatment Temp. 540 °C,
Time 0.000 sec		25 %
@Treatment Temp. 1000 °F,
Time 0.000 hour		aging
 25 %
@Treatment Temp. 425 °C,
Time 0.000 sec		25 %
@Treatment Temp. 797 °F,
Time 0.000 hour		aging
 25 %
@Treatment Temp. 370 °C,
Time 0.000 sec		25 %
@Treatment Temp. 698 °F,
Time 0.000 hour		aging
 25 %
@Treatment Temp. 480 °C,
Time 0.000 sec		25 %
@Treatment Temp. 896 °F,
Time 0.000 hour		aging
Modulus of Elasticity 125 - 130 GPa18100 - 18900 ksi
Machinability 40 %40 %
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000057 - 0.0000086 ohm-cm
@Temperature 20.0 °C		0.0000057 - 0.0000086 ohm-cm
@Temperature 68.0 °F
 0.00000330 ohm-cm
@Treatment Temp. 540 °C,
Time 21600 sec		0.00000330 ohm-cm
@Treatment Temp. 1000 °F,
Time 6.00 hour		52%IACS
 0.00000330 ohm-cm
@Treatment Temp. 540 °C,
Time 28800 sec		0.00000330 ohm-cm
@Treatment Temp. 1000 °F,
Time 8.00 hour		52%IACS
 0.00000330 ohm-cm
@Treatment Temp. 540 °C,
Time 14400 sec		0.00000330 ohm-cm
@Treatment Temp. 1000 °F,
Time 4.00 hour		52%IACS
 0.00000350 ohm-cm
@Treatment Temp. 540 °C,
Time 7200 sec		0.00000350 ohm-cm
@Treatment Temp. 1000 °F,
Time 2.00 hour		50%IACS
 0.00000360 ohm-cm
@Treatment Temp. 480 °C,
Time 28800 sec		0.00000360 ohm-cm
@Treatment Temp. 896 °F,
Time 8.00 hour		48%IACS
 0.00000380 ohm-cm
@Treatment Temp. 480 °C,
Time 14400 sec		0.00000380 ohm-cm
@Treatment Temp. 896 °F,
Time 4.00 hour		45%IACS
 0.00000380 ohm-cm
@Treatment Temp. 480 °C,
Time 21600 sec		0.00000380 ohm-cm
@Treatment Temp. 896 °F,
Time 6.00 hour		46%IACS
 0.00000390 ohm-cm
@Treatment Temp. 480 °C,
Time 7200 sec		0.00000390 ohm-cm
@Treatment Temp. 896 °F,
Time 2.00 hour		44%IACS
 0.00000400 ohm-cm
@Treatment Temp. 425 °C,
Time 28800 sec		0.00000400 ohm-cm
@Treatment Temp. 797 °F,
Time 8.00 hour		43%IACS
 0.00000410 ohm-cm
@Treatment Temp. 425 °C,
Time 21600 sec		0.00000410 ohm-cm
@Treatment Temp. 797 °F,
Time 6.00 hour		42%IACS
 0.00000420 ohm-cm
@Treatment Temp. 425 °C,
Time 14400 sec		0.00000420 ohm-cm
@Treatment Temp. 797 °F,
Time 4.00 hour		41%IACS
 0.00000440 ohm-cm
@Treatment Temp. 425 °C,
Time 7200 sec		0.00000440 ohm-cm
@Treatment Temp. 797 °F,
Time 2.00 hour		39%IACS
 0.00000470 ohm-cm
@Treatment Temp. 370 °C,
Time 28800 sec		0.00000470 ohm-cm
@Treatment Temp. 698 °F,
Time 8.00 hour		37%IACS
 0.00000470 ohm-cm
@Treatment Temp. 540 °C,
Time 0.000 sec		0.00000470 ohm-cm
@Treatment Temp. 1000 °F,
Time 0.000 hour		37%IACS
 0.00000490 ohm-cm
@Treatment Temp. 370 °C,
Time 21600 sec		0.00000490 ohm-cm
@Treatment Temp. 698 °F,
Time 6.00 hour		35%IACS
 0.00000540 ohm-cm
@Treatment Temp. 370 °C,
Time 14400 sec		0.00000540 ohm-cm
@Treatment Temp. 698 °F,
Time 4.00 hour		32%IACS
 0.00000580 ohm-cm
@Treatment Temp. 370 °C,
Time 7200 sec		0.00000580 ohm-cm
@Treatment Temp. 698 °F,
Time 2.00 hour		30%IACS
 0.00000580 ohm-cm
@Treatment Temp. 480 °C,
Time 0.000 sec		0.00000580 ohm-cm
@Treatment Temp. 896 °F,
Time 0.000 hour		30%IACS
 0.00000690 ohm-cm
@Treatment Temp. 425 °C,
Time 0.000 sec		0.00000690 ohm-cm
@Treatment Temp. 797 °F,
Time 0.000 hour		25%IACS
 0.00000690 ohm-cm
@Treatment Temp. 315 °C,
Time 21600 sec		0.00000690 ohm-cm
@Treatment Temp. 599 °F,
Time 6.00 hour		25%IACS
 0.00000690 ohm-cm
@Treatment Temp. 315 °C,
Time 28800 sec		0.00000690 ohm-cm
@Treatment Temp. 599 °F,
Time 8.00 hour		25%IACS
 0.00000720 ohm-cm
@Treatment Temp. 315 °C,
Time 14400 sec		0.00000720 ohm-cm
@Treatment Temp. 599 °F,
Time 4.00 hour		24%IACS
 0.00000790 ohm-cm
@Treatment Temp. 315 °C,
Time 7200 sec		0.00000790 ohm-cm
@Treatment Temp. 599 °F,
Time 2.00 hour		22%IACS
 0.00000790 ohm-cm
@Treatment Temp. 370 °C,
Time 0.000 sec		0.00000790 ohm-cm
@Treatment Temp. 698 °F,
Time 0.000 hour		22%IACS
 0.00000820 ohm-cm
@Treatment Temp. 315 °C,
Time 0.000 sec		0.00000820 ohm-cm
@Treatment Temp. 599 °F,
Time 0.000 hour		21%IACS
 
Thermal PropertiesMetricEnglishComments
CTE, linear 17.6 µm/m-°C
@Temperature 20.0 - 200 °C		9.78 µin/in-°F
@Temperature 68.0 - 392 °F
Specific Heat Capacity 0.420 J/g-°C0.100 BTU/lb-°F
Thermal Conductivity 17.3 W/m-K120 BTU-in/hr-ft²-°F
Melting Point 1030 - 1070 °C1890 - 1960 °F
Solidus 1030 °C1890 °F
Liquidus 1070 °C1960 °F
 
Processing PropertiesMetricEnglishComments
Processing Temperature 980 °C1800 °FHot-Shortness Temperature
Solution Temperature 900 - 925 °C1650 - 1700 °FLarge sections, 1 hour per inch or fraction of an inch
 900 - 955 °C1650 - 1750 °F10 minutes, water quench
Aging Temperature 425 °C797 °F3-6 hours, for maximum strength
 470 - 495 °C878 - 923 °FCommercial practice, 2-3 hours
Hot-Working Temperature 700 - 925 °C1290 - 1700 °F
Precipitation Temperature >= 482 °C
@Time 7200 sec		>= 900 °F
@Time 2.00 hour		Air
 
Component Elements PropertiesMetricEnglishComments
Beryllium, Be 0.40 - 0.70 %0.40 - 0.70 %
Cobalt, Co 2.4 - 2.7 %2.4 - 2.7 %
Copper, Cu 96.9 %96.9 %
Iron, Fe >= 0.10 %>= 0.10 %
Other, total >= 0.50 %>= 0.50 %

References for this datasheet.

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MC17500b2 / 10895

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