Material Properties
■ Material Properties
Thermal Conductivity (W/m · °C)
Linear-Thermal Expansion Coefficient (X 10 -6 /°C)
Hardness (mHv) (GPa)
Young Modulus (GPa)
Melting Point (°C)
Material
Specific Gravity
WC TiC
Tungsten Carbide Titanium Carbide Tantalum Carbide Niobium Carbide Titanium Nitrate Aluminum Oxide Silicon Nitride Cubic Boron Nitride
15.6
21 31 18 20 20 29 25 44
690 450 280 340 260 410 310 700 970
126
5.1 7.6 6.6 6.8 9.2 8.5 3.0 4.7 3.1
2,900 3,200 3,800 3,500 2,950 2,050
4.94
17 21 17 29 29 29
TaC NbC
14.5
8.2
TiN
5.43 3.98 3.17 3.48 3.52
A
Al 2 O 3 Si 3 N 4 cBN
>1,900 (decomposes)
1,300 2,100
— —
C
Diamond
>90
Co
Cobalt Nickel
8.9 8.9
— 100 to 180
69 92 79 75 67 17
12.3 13.3
1,495 1,455
Ni
— 18 14 10
200 630 580 530 210
WC-5% Co WC-10% Co WC-20% Co
15.0 14.6 13.5
5.0 5.0 6.0
— — — —
Cemented Carbide
High Speed Steel
8.7
8
11.0
A37
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