2205 is the most widely used duplex stainless steel grade that combines the beneficial properties of nearly equal portions of both ferritic and austenitic steels. The inclusion of chromium and molybdenum gives this stainless steel excellent corrosion resistance as well as resistance to stress corrosion cracking and ensures high strength.
17-7 stainless steel is a stable, chromium-nickel-aluminum precipitation hardened stainless steel that provides high strength and hardness, excellent fatigue properties, moderately resistant to corrosion, good formability, and minimum distortion upon heat treatment.
Stainless 309 is an austenitic chromium nickel stainless steel and offers a better corrosion resistance than the type 304 because of higher percentages of nickel and chromium. Suitable for parts requiring both corrosion and heat resistance and oxidation resistance up to 2000 °F. Strength at elevated temperatures is similar to that of 18-8 Stainless Steels. […]
Type 420 stainless steel is a general purpose steel and possesses similar qualities to the 410 grade, but contains more carbon which provides improved hardness and strength when heat treated. 420 stainless has good mechanical and machining properties.
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