Ferroboron

ferroboron

[¦fe·rō′bȯ‚rän]
(metallurgy)
An alloy of iron and boron that is added to steel to form hardened special steels; two grades are used, 10% boron and 17% boron.

Ferroboron

 

a ferroalloy containing 10–25 percent B, 2–5 percent Si, and 2–5 percent Al (Fe constituting the remainder). It is obtained in ore heat-treating furnaces by the aluminothermic method from borate ore or boric anhydride. Ferroboron and other alloys of iron with boron (Ferroboral or Grainal) are used for alloying, deoxidizing, and modifying steel.

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