What Makes Special Bar Quality (SBQ) Steel So Special? by Ray Fryan | September 23, 2015 | Categories: Industrial Steel, Steel Grades, Steel News In a word, stress! The degree to which special bar quality (SBQ) steels are truly “special” largely depends on how much stress it can handle. Not all SBQ steel is created equally, and only a select few manufacturers can produce it for the most demanding applications. Read More