Free machining stainless. Used in automatic machining operations. Good corrosion resistance. Sutable for threaded connectors
304 Most widely used stainless. Good corrosion resistance with good formability and welding.
Low carbon stainless with the same properties as 304 but with superior intergranular corrosion resistance following welding or relieving.
Better corrosion resistance and higher strength at elevated temperatures than 304. It also has superior creep strength at elevated temperatures. Used in pumps, valves, chemical equipment, and marine equipment.
Low carbon stainless with the same properties as 316 but with superior intergranular corrosion resistance following welding or relieving.
Excellent resistance to attack by sulfuric acid and many other aggressive environments.
Excellent mechanical properties at elevated temperatures. Heat-treatable for high strength properties.
Same properties as 17-7PH with slightly higher capabilities at elevated temperatures. Can be used heat-treated or non heat-treated.
High strength and toughness over wide temperature range. Corrosion and oxidation resistance to 1000 degrees F.
Excellent corrosion resistance, formability, and welding properties. Good for cryogenic to high temperatures up to 2000 degrees F.
Widely used for marine applications due to their excellent resistance to seawater corrosion, low macrofouling rates, and good fabricability.
Used mostly in chemical environments for resistance against oxidizing agents.
Information for this sheet came from the Carpenter Technology (www.cartech.com) and Ulbrich Stainless Steels and Special Metals Inc. (www.ulbrich.com) web sites.