It thus needed to be carburised to at least 1.5% carbon content.

More specifically, it is iron that has a carbon content of 1.7 percent or less.

This is due to the lower carbon content per unit energy of the fuel.

Note that steel with a carbon content above 2.0% is considered cast iron.

Steel, after all, is only iron with a fractionally higher carbon content.

VG-10 is a stainless steel with a high carbon content.

One is by imposing a tax on fuels in proportion to their carbon content.

The main difference between the two is the carbon content.

There is no formal link between tax rate and carbon content.

With care, the carbon content could be controlled by moving it around in the fire.