Stainless 446 is a high chromium ferritic heat resistant alloy with a high resistance to oxidation, sulfidation and other forms of hot corrosion. It has a high ductile-to-brittle impact transition temperature. 446 is the only heat resistant alloy that will tolerate molten copper and brass.
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.
303 Stainless machines well and cuts clean and maintains it resistance to corrosion in temperatures up to 1500 degrees F. Good applications include repeat machining, fittings and fasteners.
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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