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Alloyed Steels With Boron
Nov 28, 2018

Boron is a small interstitial element which is added to fully killed and de-oxidised steel to improve hardenability.

Boron-treated steels are produced in the range 0.0005 – 0.005% added boron and are most effective in lower carbon steels < 0.40% C.

Boron increases the strength of heat-treated steels in the quenched and tempered condition.

Boron can be substituted for other alloying elements, maintaining the hardenability.

Boron steel grades can be hot worked using cooled tooling by pressing, bending and forging. Quenching from hot working temperature; produces a rapid cooling rate and a martensitic microstructure which is auto-tempered to produce high strength, tough, hard, durable and wear resistant components.