Physical and Mechanical Properties of Materials



Typical Physical and Mechanical Properties of commonly used engineering materials
Material Density (kg/m3) Youngs Modulus (GN/m2) Bending strength (MN/m2) Tensile strength (MN/m2) Thermal conductivity (W/mK) Hardness (Vickers if not stated) Thermal expansion coefficient (K-1 x 10-6) Thermal shock parameter (W/m)
Carbon graphite (Resin impregnated) 1,800 23 65 41 11.0 90 - 100 Shore A 3.0 10,360
Carbon graphite (Antimony filled) 2,500 33 90 48 13.5 85 - 95 Shore A 3.5 10,520
PTFE 25% glass 2,250

12 - 20 0.4 70 - 75 Shore D 44 - 92
Stellite 1 8,690 248
850 0.1% proof 15.0 600 11.3
Ni-resist 7,300 96
200 40.0 150 19.0
18/2 martinistic steel (AISI 431) 7,720 210
850 - 1,000 18.8 261 - 319 11.1
Lead Bronze BS 1400: 1985 LB4 9,000 68
220 - 300 71.0 65 - 90 18.4
Aluminium Oxide 99.5% 3,870 365 480
30.0 2,500 6.9 5,718
Tungsten carbide Co binder 14,700 630 1,750
88.0 1,500 - 1,600 5.1 47,930
Tungsten carbide Ni binder 14,700 600 1,700
73.0 1,300 - 1,500 4.8 43,090
Silicon carbide reaction bonded 3,100 413 525
200.0 2,500 - 3,500 4.3 59,120
Silicon carbide sintered 3,100 390 450
100.0 2,500 4.8 24,048
Silicon carbide graphite 2,800 152 131
153.0
3.4 38,780

Moh's Hardness
Material Moh's Hardness
Aluminium Oxide
Boron Carbide
Chalk (Calcium Carbonate)
Cuttlebone
Diamond
Garnet
Pumice
Quartz
Silicon Carbide
Talc
Tungsten Carbide
Zirconium Silicate
Gold
Porcelain
Enamel
9
9 - 10
3
7
10
6.5 - 7
2
7
9 - 10
1
9
7.5
2.5 - 3
6 - 7
5

A material's Moh's Hardness value indicates the material's resistance to scratching. A diamond has a maximum hardness of 10.


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