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Specific Gravity Of Metals Table

This table is a data information resource for the specific gravity of many common metals. While the data is extremely useful for design, actual individual samples will probably differ. Temperature and purity will often have a definite effect. As 1000kg of pure water @ 4°C = 1 cubic meter, those materials under 1000kg per cubic meter will float; more dense materials will obviously sink. Those materials have a specific gravity more than 1. Pure water at 4°C (the maximum density) was chosen as the accepted standard for specific gravity and given the value of 1. Some other standards set pure water at 60°F as sg = 1 so it is more correct to state the base used. The specific gravity of all other materials are compared to water as a fraction heavier or fraction lighter density, no matter how small or large the fraction is. For example, beryllium has a specific gravity (sg) of 1.84 (1840 kg/m³). As specific gravity is just a comparison, it can be applied across any units. The density of pure water is also 62.4 lbs/ft³ (pounds per cubic foot) and if we know that a sample of aluminum has a sg of 2.5 then we can calculate that its density is 2.5 x 62.4 = 156 lbs/ft³. As general information, kg/m³ divided by 16.01846 = lbs/ft³.

To help with the table, unit converters are included at the top of the chart. Enter values in either side of the equation.

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Unit Conversions

Grams(g)  =  Kilograms(kg)

Pounds per Cubic Foot 
(lbs/ft³)
=  Kilograms per Cubic Meter
(kg/m³)


Specific Gravity Table

Metal or alloy kg/m³
aluminum - melted 2560 - 2640
aluminum bronze (3-10% Al) 7700 - 8700
aluminum foil 2700 -2750
antifriction metal 9130 -10600
beryllium 1840
beryllium copper 8100 - 8250
brass - casting 8400 - 8700
brass - rolled and drawn 8430 - 8730
bronze - lead 7700 - 8700
bronze - phosphorous 8780 - 8920
bronze (8-14% Sn) 7400 - 8900
cast iron 6800 - 7800
cobolt 8746
copper 8930
delta metal 8600
electrum 8400 - 8900
gold 19320
iron 7850
lead 11340
light alloy based on Al 2560 - 2800
light alloy based on Mg 1760 - 1870
magnesium 1738
mercury 13593
molybdenum 10188
monel 8360 - 8840
nickel 8800
nickel silver 8400 - 8900
platinum 21400
plutonium 19860
silver 10490
steel - rolled 7850
steel - stainless 7480 - 8000
tin 7280
titanium 4500
tungsten 19600
uranium 18900
vanadium 5494
white metal 7100
zinc 7135
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Updated: 10/3/13


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