Knowing the density of common materials can be useful in a variety of jobs...
estimating the weight of an object
finding the volume needed to contain a given weight of a material
making your own scale weights
verifying the accuracy of mathematical equations
For an example of the last one above, see...
http://www.homemadetools.net/forum/s...-ungulas-27633
Code:
oz/in3 = (2.54 cm/in)^3 * (2.20462E-3 lb/gm) * (16 oz/lb) * gm/cc
oz/in3 = 0.578035985 * gm/cc
oz/in3 = 0.578036 * gm/cc 1 oz = 28.35 gm
gm/in3 = 16.38706 * gm/cc
oz/cc = 0.035274 * gm/cc Hg = 13.5462 gm/cc @ 20 degC
lb/in3 = 0.036127 * gm/cc
Water = 62.428 lb/ft3
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Material gm/cc oz/in3 lb/in3 Linear Expansion (uin/in/degF)
Gold 19.296 11.154 0.697 7.9
Mercury 13.547 7.830 0.4894
Lead 11.299 6.531 0.4082 16.2
Silver 10.5 6.069 0.379 10.6
Bronze 8.844 5.112 0.3195 9.86
Copper 8.813 5.094 0.3184 9.4
Brass
80% Cu - 20% Zn 8.595 4.968 0.3105 9.57
70% Cu - 30% Zn 8.393 4.851 0.3032 9.57
60% Cu - 40% Zn 8.354 4.829 0.3018 9.57
50% Cu - 50% Zn 8.193 4.736 0.2960 9.57
Steel 7.795 4.506 0.2816 6.36
Cast Iron 7.197 4.16 0.26 5.56
Aluminum 2.558 1.478 0.0924 12.34
Gunmetal 8.84 5.11 0.3194 10.1
White Metal 7.31 4.23 0.2641
Zinc 7.06 4.081 0.2551 16.2
Oak (transverse) 3.0
Oak (longitudinal) 2.7
German Silver 10.2
Glass 4.8
Stainless Steel 5.9
Nickel 7.1
Phospher Bronze 9.3
Sea Water 1.025 0.592 0.037
Water 1.000 0.578 0.0361
Ice 0.9195
Gasoline 0.675 0.390 0.024
Brick 1.8 1.040 0.065
Concrete 2.1 0.079 0.076
Earth 1.6 0.925 0.058
Granite 2.7 1.561 0.098
Dry Sand 1.65 0.954 0.060
Ivory 1.874 1.083 0.068
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