Brushed Stainless (DP1) Steel Sheet Metal 430 – 0.9mm, 1.2mm, 1.5mm. Due to the aesthetics and minimum maintenance, stainless (DP1) steel is highly preferred for home improvement projects. Some additional benefits are that stainless steel is corrosion resistant and resists bacteria to grow. It is the right choice if you want to configure a metal part that is going to be exposed to an external or indoor environment. Strong and timeless, stainless steel has a superior heat resistance and is practically immune to rusting. About Sheet Metal Online. Sheet Metal Online provides sheet metal products ready for fabrication. With a wide variety of high-quality sheet metal products, finishes, and sizes, we customise every order to deliver. We will respond to you within 24 hours and do our best to help you out! Please allow up to 3 days dispatch time.