Alloy C272, also called yellow brass, is a metal that exhibits properties that fit just about any industry. Chemically, the composition of yellow brass is approximately 63.5% copper plus 39.5% zinc. While it offers the same attractive sheen as gold, the material is more robust and not as expensive, thus making it versatile for a multitude of projects. Alloy C272 can be sold in the form of square brass tubing, as well as other cross-section shapes like hexagons, rectangles, and the traditional round tube.