There are three methods to separate boron from steelUsually high-alloy steel, nickel-based superalloy containing elementssuch as niobium, tantalum, titanium, aluminum, the affinity of nitrogen is muchlarger than boron, and therefore rarely form boron nitride, the full amount ofboron can be obtained by sulfuric smoke. PPGI PPGL steel coil, low-alloy steel issometimes ava...02Feb2021PPGI PPGL steel coil