Grade 304 stainless steel is generally regarded as the most common austenitic stainless steel. It contains high nickel content that is typically between 8 and 10.5 percent by weight and a high amount of chromium at approximately 18 to 20 percent by weight. Other major alloying elements include manganese, silicon, and carbon. The remainder of the chemical composition is primarily iron. The high amounts of chromium and nickel give 304 stainless steel excellent corrosion resistance and for those reasons they are used in high quality and lifetime warranty exhaust systems.
Please Note: we cut all tubes to the sizes listed, once the tubes have been cut from our stock they cannot be refunded or exchanged. Lengths have tolerance +/- 5mm
What is Nominal Pipe?
If you've worked with pipe much at all, you've probably noticed that the size of the pipe isn't really what size the pipe is. Unlike tubing, which is generally specified by its OD (outside diameter which is generally specified by its ID (inside diameter), pipe is specified by the industry designated size, or trade size. The first thing that all fabricators should know is that "Nominal Pipe Size", or NPS, is an industry designation, or "trade size", and it is does not reference the actual measured size of the material, see item specification for the actual sizes.