Overview of materials for Cobalt Alloy

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Overview of materials for Cobalt Alloy
Categories:	Metal; Nonferrous Metal; Cobalt Alloy
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Cobalt Alloy". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	6.40 - 11.9 g/cc	0.231 - 0.430 lb/in³	Average value: 8.45 g/cc Grade Count:294
Particle Size	0.0200 - 150 µm	0.0200 - 150 µm	Average value: 36.1 µm Grade Count:37
Specific Surface Area	0.800 - 60.0 m²/g	0.800 - 60.0 m²/g	Average value: 24.5 m²/g Grade Count:3
Molecular Weight	58.9 g/mol	58.9 g/mol	Average value: 58.9 g/mol Grade Count:3

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	125 - 596	125 - 596	Average value: 323 Grade Count:84
Hardness, Knoop	182 - 720	182 - 720	Average value: 351 Grade Count:80
Hardness, Rockwell A	46.0 - 80.0	46.0 - 80.0	Average value: 69.4 Grade Count:51
Hardness, Rockwell B	80.0 - 116	80.0 - 116	Average value: 97.8 Grade Count:22
Hardness, Rockwell C	7.00 - 63.0	7.00 - 63.0	Average value: 40.1 Grade Count:170
Hardness, Rockwell R	80.0 - 125	80.0 - 125	Average value: 103 Grade Count:4
Hardness, Vickers	100 - 1040	100 - 1040	Average value: 389 Grade Count:128
Vickers Microhardness	900 - 960	900 - 960	Average value: 920 Grade Count:3
Tensile Strength, Ultimate	20.7 - 2540 MPa	3000 - 368000 psi	Average value: 969 MPa Grade Count:254
Tensile Strength, Yield	207 - 2280 MPa	30000 - 331000 psi	Average value: 760 MPa Grade Count:197
Elongation at Break	0.100 - 70.0 %	0.100 - 70.0 %	Average value: 22.8 % Grade Count:195
Elongation at Yield	0.000 - 3.50 %	0.000 - 3.50 %	Average value: 0.750 % Grade Count:7
Reduction of Area	5.00 - 77.0 %	5.00 - 77.0 %	Average value: 40.9 % Grade Count:40
Modulus of Elasticity	13.0 - 258 GPa	1890 - 37400 ksi	Average value: 191 GPa Grade Count:188
Flexural Yield Strength	48.3 - 689 MPa	7000 - 100000 psi	Average value: 178 MPa Grade Count:23
Flexural Modulus	200 - 230 GPa	29000 - 33400 ksi	Average value: 215 GPa Grade Count:3
Compressive Yield Strength	30.0 - 2140 MPa	4350 - 310000 psi	Average value: 783 MPa Grade Count:27
Poissons Ratio	0.226 - 0.450	0.226 - 0.450	Average value: 0.300 Grade Count:50
Shear Modulus	62.0 - 83.4 GPa	8990 - 12100 ksi	Average value: 77.8 GPa Grade Count:48
Izod Impact Unnotched	4.75 - 84.0 J	3.50 - 62.0 ft-lb	Average value: 69.6 J Grade Count:16
Charpy Impact	4.00 - 262 J	2.95 - 193 ft-lb	Average value: 135 J Grade Count:91
Charpy Impact, Unnotched	88.0 - 176 J	64.9 - 130 ft-lb	Average value: 96.5 J Grade Count:15

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000624 - 0.0400 ohm-cm	0.00000624 - 0.0400 ohm-cm	Average value: 0.000788 ohm-cm Grade Count:215
Magnetic Permeability	1.00 - 7580	1.00 - 7580	Average value: 195 Grade Count:64
Magnetic Coercive Force, H_c	0.00300 - 35000 Oe	0.00300 - 35000 Oe	Average value: 7850 Oe Grade Count:61
Magnetic Saturation Flux Density, B_max	5500 - 22000 Gauss	5500 - 22000 Gauss	Average value: 13800 Gauss Grade Count:5
Magnetic Remanence, B_r	0.700 - 14400 Gauss	0.700 - 14400 Gauss	Average value: 9230 Gauss Grade Count:59
Magnetic Maximum Energy Product, BH	1.20 - 34.0 MGOe	1.20 - 34.0 MGOe	Average value: 16.5 MGOe Grade Count:56
Curie Temperature	205 - 1120 °C	401 - 2050 °F	Average value: 786 °C Grade Count:65

Thermal Properties	Metric	English	Comments
CTE, linear	6.00 - 17.9 µm/m-°C	3.33 - 9.94 µin/in-°F	Average value: 14.3 µm/m-°C Grade Count:226
CTE, linear, Transverse to Flow	12.0 - 13.0 µm/m-°C	6.67 - 7.22 µin/in-°F	Average value: 12.4 µm/m-°C Grade Count:13
Specific Heat Capacity	0.350 - 0.500 J/g-°C	0.0837 - 0.120 BTU/lb-°F	Average value: 0.423 J/g-°C Grade Count:136
Thermal Conductivity	8.40 - 200 W/m-K	58.3 - 1390 BTU-in/hr-ft²-°F	Average value: 14.7 W/m-K Grade Count:200
Melting Point	1090 - 1550 °C	2000 - 2820 °F	Average value: 1360 °C Grade Count:199
Solidus	1110 - 1380 °C	2030 - 2520 °F	Average value: 1310 °C Grade Count:139
Liquidus	1150 - 1440 °C	2100 - 2620 °F	Average value: 1380 °C Grade Count:146
Crystallization Temperature	450 - 550 °C	842 - 1020 °F	Average value: 507 °C Grade Count:3
Boiling Point	2870 - 2930 °C	5200 - 5300 °F	Average value: 2890 °C Grade Count:3
Maximum Service Temperature, Air	80.0 - 1200 °C	176 - 2200 °F	Average value: 555 °C Grade Count:100

Optical Properties	Metric	English	Comments
Reflection Coefficient, Visible (0-1)	0.370 - 0.700	0.370 - 0.700	Average value: 0.620 Grade Count:14

Component Elements Properties	Metric	English	Comments
Aluminum, Al	0.0100 - 21.0 %	0.0100 - 21.0 %	Average value: 4.14 % Grade Count:20
Beryllium, Be	0.0200 - 0.100 %	0.0200 - 0.100 %	Average value: 0.0950 % Grade Count:32
Boron, B	0.000 - 14.0 %	0.000 - 14.0 %	Average value: 0.800 % Grade Count:84
Calcium, Ca	0.00500 - 0.150 %	0.00500 - 0.150 %	Average value: 0.0775 % Grade Count:4
Carbon, C	0.0100 - 4.70 %	0.0100 - 4.70 %	Average value: 0.574 % Grade Count:318
Chromium, Cr	2.50 - 33.0 %	2.50 - 33.0 %	Average value: 24.1 % Grade Count:322
Cobalt, Co	19.0 - 100 %	19.0 - 100 %	Average value: 50.3 % Grade Count:352
Copper, Cu	0.250 - 11.0 %	0.250 - 11.0 %	Average value: 3.55 % Grade Count:7
Iron, Fe	0.100 - 51.0 %	0.100 - 51.0 %	Average value: 6.04 % Grade Count:316
Lanthanum, La	0.0200 - 0.120 %	0.0200 - 0.120 %	Average value: 0.0689 % Grade Count:28
Magnesium, Mg	0.00500 - 1.00 %	0.00500 - 1.00 %	Average value: 0.214 % Grade Count:5
Manganese, Mn	0.0500 - 5.00 %	0.0500 - 5.00 %	Average value: 1.23 % Grade Count:225
Molybdenum, Mo	0.500 - 30.0 %	0.500 - 30.0 %	Average value: 6.52 % Grade Count:165
Nickel, Ni	0.100 - 50.8 %	0.100 - 50.8 %	Average value: 10.7 % Grade Count:311
Niobium, Nb (Columbium, Cb)	0.0500 - 7.00 %	0.0500 - 7.00 %	Average value: 1.92 % Grade Count:16
Nitrogen, N	0.0500 - 0.250 %	0.0500 - 0.250 %	Average value: 0.142 % Grade Count:40
Oxygen, O	0.0100 - 0.500 %	0.0100 - 0.500 %	Average value: 0.136 % Grade Count:11
Phosphorus, P	0.0150 - 0.0400 %	0.0150 - 0.0400 %	Average value: 0.0220 % Grade Count:35
Samarium, Sm	23.1 - 42.0 %	23.1 - 42.0 %	Average value: 31.6 % Grade Count:8
Silicon, Si	0.00500 - 23.0 %	0.00500 - 23.0 %	Average value: 1.18 % Grade Count:266
Sulfur, S	0.00500 - 0.0400 %	0.00500 - 0.0400 %	Average value: 0.0176 % Grade Count:33
Tantalum, Ta	0.0500 - 6.50 %	0.0500 - 6.50 %	Average value: 2.03 % Grade Count:5
Titanium, Ti	0.0100 - 6.00 %	0.0100 - 6.00 %	Average value: 1.29 % Grade Count:26
Tungsten, W	0.200 - 35.4 %	0.200 - 35.4 %	Average value: 9.94 % Grade Count:215
Vanadium, V	1.00 - 14.0 %	1.00 - 14.0 %	Average value: 2.99 % Grade Count:14
Yttrium, Y	0.100 - 0.650 %	0.100 - 0.650 %	Average value: 0.433 % Grade Count:6
Zirconium, Zr	0.0500 - 3.50 %	0.0500 - 3.50 %	Average value: 1.01 % Grade Count:9

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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