Known bicycle materials （3）

density

Density is the weight of unit volume. Density is an important decision when the weight of the frame. When the frame design light shall not depending on the data. But small is not equal to the density of frame of light.
Using bicycle in the material density (g/cm ^ 3)
Chromium MuGang (low alloy steel) 7.9
Aluminum 260-289
Titanium 4.5
Titanium alloy 4.3-5.1
Carbon fiber (CFRP) 1.5-160
Magnesium 170

From the above knowable MuGang chromium alloys, the highest density. Low density, can make light frame, if so think speak only half-right. Even a tiger tensile strength, elasticity, and other factors. Although density low, but not enough strength, low density 1/3 doesn't equal weight is light 1/3.