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 304, also known as 18-8 stainless, is the most common steel used in a variety of uses because of the ease in which it can be formed into various shapes. Non-magnetic and highly resistant to corrosion makes it a good all-purpose stainless.
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. […]
Alloy 321 (UNS S32100) contains increased titanium for improved strength and heat resistance, making it ideal for applications range of 800 – 1500°F (427 – 816°C). It has excellent resistance to intergranular corrosion. A popular aircraft alloy.
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