Boron is a metalloid element used as a microalloying additive in high-purity ferroboron master alloys to enhance steel properties.
Boron (atomic number 5, symbol B) is a chemical element that, when added in trace amounts (typically 0.0005-0.005%) to steel via ferroboron master alloys, significantly improves hardenability, mechanical strength, and wear resistance by forming fine borides and influencing grain boundary behavior during heat treatment.
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Boron is added to improve hardenability, allowing steel to achieve higher strength and wear resistance with lower alloying costs, as it is effective in trace amounts compared to other elements like chromium or molybdenum.
Excessive boron (>0.005%) can cause brittleness, reduced toughness, and hot cracking due to boride precipitation at grain boundaries, compromising mechanical integrity.
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