Steel Plate is one of the most popular hot rolled, low carbon steel plates used in manufacturing, fabrication, and repair projects. A36 Steel plate adds strength and rigidity to any project at a lower price compared to other grades of steel plate. It is easy to weld, cut, form and machine. Metals Depot stocks hundreds of thicknesses and sizes of steel plate that you can buy online in ready to ship precut or mill sizes or you can order just what you need custom Cut to Size in small or large quantity at wholesale prices.