The chemical composition of stainless steel 316 is almost identical to that of the 304 grade. 1.4401, 1.4404 An Austenitic Stainless Steel Containing Molybdenum Which is More Corrosion Resistant than the Conventional 304/304L Stainless Steel Alloy 316-316L 06/2014 www.SandmeyerSteel.com SANDMEYER STEEL COMPANY ONE SANDMEYER LANE • PHILADELPHIA, PA 19116-3598 Stainless Steel 316 is a chromium-nickel based steel that possesses increased levels of resistance against several substances, due to the addition of molybdenum in its composition. The SAE / ANSI / AISI 316 is the second most commonly available/widely used type of stainless steel after the SAE/ANSI/AISI 304. Other applications include fasteners and screens for the mining industry. AISI 316 stainless steel is commonly used for equipment in the pharmaceutical industry. They also have excellent toughness and can be used in the food, marine, chemical and architectural fields. 316 1.4401 316L 1.4404 Chemical Composition Chemical composition as represented by ASTM A213 and ASME SA-213 specifications are indicated in the table below. Both 304 and 316 stainless steel possess paramagnetic characteristics. SAE 316L grade stainless steel, sometimes referred to as A4 stainless steel or marine grade stainless steel, is the second most common austenitic stainless steel after 304/A2 stainless steel. The molybdenum allows SS 316 to be more resistance to corrosion overall, with specific resistance against chlorine pitting. Considered the generic workhorse, the SS 304 can serve in most situations with great success. There are a few distinct differences with the quantities of chromium (18 – 20% for 304, 16 – 18% for 316) and nickel (8 – 10.5% for 304, 10 – 14% for 316). The 316 family is a group of austenitic stainless steels with superior corrosion resistance to 304 stainless steels. Percentage by Weight (maximum unless range is specified) Specification Sheet: Alloy 316/316L (UNS S31600, S31603) W. Nr. As a result of these properties small particles (approx 0.1-3mm dia sphere for example) can be attracted to powerful magnetic separators positioned in the product stream. The key difference between standard 316 stainless steel and SS316L is the composition, 316 contains more molybdenum than 316L, which results in increased resistance to pitting and crevice corrosion and better protection when exposed to high-chloride chemicals and acids. Stainless steel: 276 is a group of iron-based alloys that contain a minimum of approximately 11% chromium,: 3 a composition that prevents the iron from rusting, as well as providing heat-resistant properties. Practical implications for removal of stainless steel particles. Its primary alloying constituents after iron, are chromium (between 16–18%), nickel (10–12%) and molybdenum (2–3%), with small (<1%) quantities of silicon, phosphorus & sulfur also present.