The cementation process, which was lost from the end of the Roman to the early Medieval period, continued in the same way with brass.

However, during this period a vast and highly important technological innovation happened using the cementation process, the production of steel.

About 1615, he obtained an interest in a patent for making steel by the cementation process.

The raw material for this was blister steel, made by the cementation process.

They did not have to isolate zinc metal to do this but used the cementation process described on page 76.

A major restriction in the cementation brass-making process was the limited amount of zinc which could be introduced into the alloy.

He also acquired an interest in the patent for the cementation process of making steel in about 1615.

Its most important use was as the raw material for the cementation process of steelmaking.

The cementation process is an obsolete technique for making steel by carburization of iron.

This level of purity meant that the iron was particularly suitable for conversion to steel by being re-carburized, using the cementation process.