Sendzimir process is used to galvanize a steel strip by using a small amount of aluminum in the zinc

Zinc

Zinc , or spelter , is a metallic chemical element; it has the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. Zinc is, in some respects, chemically similar to magnesium, because its ion is of similar size and its only common oxidation state is +2...

 bath and producing a coating with essentially no iron

Iron

Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

-zinc alloy. The process guarantees high resistance and durability characteristics. About 75% of hydrogen

Hydrogen

Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

 was needed in the original Sendzimir process but all the newer nonoxidizing methods of degreasing require only 7—15%.

The rolling of hot steel slabs using a Sendzimir mill requires a much smaller operational area than a continuous hot strip mill.
This milling process is not recommended for heavy duty running surfaces such as crane rail