https://www.ovako.com/en/steel-portfolio/steel-grades/boron-steel/
Boron Steel - Ovako
Boron is a small element cost-effectively added to improve hardenability and increase strength, mostly for lower and medium carbon steels with less than 0.40%...
boron steelovako
https://www.ovako.com/en/newsevents/stories/hultafors-produces-superior-wrecking-bars-with-ovako-boron-steel/
Hultafors produces superior wrecking bars with Ovako boron steel - Ovako
wrecking barsboron steelhultaforsproducessuperior