Your order will be shipped on a AM service. Your order will be dispatched within 1 working day, most orders on this option will go same working day (Cut off time 13:00). Some may go on a AM service on occasion. Typically items over 2000mm in length or over 60Kg will be those that do not always go on a 24 hour service. All orders except extremely large or heavy items will go on a 24 hour service. Your order will be dispatched within 1 working day (Cut off time 13:00). Most items will ship on a 24 hour service on standard delivery but some heavy items or large items may go on a 48 hour service. Your order will be dispatched within 2 working days if stocked on standard delivery, almost all stocked items will dispatch within 1 working day however. (If you have any Custom orders, cut to size sheet or personalised orders as well, then your whole order will be shipped as Order type B below) Order type A: Standard products and stocked items: Upgraded shipping and processing is available on checkout from £8. We ship most of our free items on a 24-hour courier service but we also use 48-hour for certain product sizes and weights. Applications suggested for the materials are described only to help readers make their own evaluations and decisions, and are neither guarantees nor to be construed as express or implied warranties of suitability for these or other applications.We are happy to ship items worldwide, most countries will be offered post at checkout without an issue. NOTE: The information and data in this product data sheet are accurate to the best of our knowledge and belief, but are intended for informational purposes only, and may be revised at any time without notice. A post weld heat treatment is not necessary. Weight % (all values are maximum unless a range is otherwise indicated)Īlloy 304/304L can be readily welded by most standard processes. Ps = pitting/crevice corrosion can occur WPA Lowest Temperature (☏) at Which the Corrosion Rate Exceeds 5mpy CORROSION However, in environments that are sufficiently corrosive to cause intergranular corrosion of welds and heat-affected zones Alloy 304L should be used because of its low carbon content. In most instances, the corrosion resistance of Alloys 304, 304L and 304H will be roughly equal in most corrosive environments. Alloy 304/304L is not recommended for service in marine environments. For successful performance under these more severe conditions, higher molybdenum content is need such as 316/316L. At higher chloride levels the grade is susceptible to crevice corrosion and pitting. The alloy can also operate successfully in caustic solutions free of chlorides or Alloy 304/304L does not perform well in more highly reducing environments such as those containing chlorides and sulfuric acid.Īlloy 304/304L performs well in fresh water service with low levels of chlorides (less than 100ppm). The nickel present in the alloy provides resistance to moderately reducing solutions such as pure phosphoric acid, whatever the concentration, in cold solutions and up to 10% diluted hot solutions. The high chromium content of the alloy provides resistance to oxidizing solutions such as nitric acid up to 55% weight and up to 176☏ (80☌).Īlloy 304/304L also resists moderately aggressive organic acids such as acetic. It can be easily welded and processed by standard shop fabrication practices.Īlloy 304/304L has good resistance to atmospheric corrosion, foods and beverages and to many organic and inorganic chemicals in moderately oxidizing to moderately reducing environments. Alloy 304/304L has excellent strength and toughness at cryogenic temperatures.Īlloy 304/304L is non-magnetic in the annealed condition, but can become slightly magnetic as a result of cold working or welding. The alloy has excellent resistance to intergranular corrosion in the as-welded condition. The low carbon chemistry of 304L combined with an addition of nitrogen enables 304L to meet the mechanical properties of 304.Īlloy 304/304L resists atmospheric corrosion, as well as, moderately oxidizing and reducing environments. It is common practice for 304L to be dual certified as 304 and 304L. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. Alloy 304/304L (UNS S30400/S30403) is the most widely utilized “18-8” chromium-nickel austenitic stainless steel.
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