Stainless Steel Specification and Composition Table Chart
Chemical Composition Chart Stainless Steel
303 - Free machining for use in automatic machining operations. High corrosion resistant
304 - The most widely used of the stainless steels. Offers good corrosion resistance to many environments. Has good formability and can be readily welded.
309 - Used in high temperature applications. High scale resistance. Corrosion resistance superior to 304. Resists corrosion when welded.
316 - Better corrosion resistance as well as higher strength at elevated temperatures than 304. Often used for pumps, valves, chemical equipment and marine applications. Most popular of stainless steels.
409 - Lowest cost stainless - used extensively in automotive exhaust systems. Excellent formability and weldability. Because of its economy and good resistance to oxidation and corrosion, this stainless offer many opportunities for a wide range of parts.
410 - Heat-treatable stainless used widely where corrosion is not severe - air, fresh water, some chemicals and food acids.
416 - Free machining variation of 410 with useful corrosion resistance to natural food acids, basic salts, water and most atmospheres.
416 - Free-machining variation of 410 with useful corrosion resistance to natural food acids, basic salts, water and atmospheres
430 - Is the most popular of the non-hardenable chromium stainless steels. It combines good corrosion and heat resistance with good mechanical properties. Oxidation resistance to 1500 deg F widely used in both industrial and consumer products.
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