Profile: Jade Special Metals is a supplier and exporter of pipes, tubes, round bar, sheet, plates, and tube plugs. Our products are widely used in metal, marine, offshore, oilfields and industrial products requirements. Stainless steel 304 flat bars are used in many different applications and industries, but its resistance to chloride attack means it is often selected for use in marine atmospheres. Stainless steel 304L hexagonal bars are added with copper to improve its resistance to strong reducing acids, such as sulphuric acid.