Heat Resistant Grades

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309, 310, 253MA

Types 309, 310, and 253 MA are heat resisting austenitic stainless steels typically used for applications above 1000˚F.  Their high chromium and nickel contents provide comparable corrosion resistance similar to Type 304, but these grades possess higher elevated temperature oxidation and creep resistance, stress rupture, and tensile strength compared to Type 304/304L.