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ASTM ASME SB166 B446 B637 B511 B408 Incoloy 800 Round Bar

Incoloy Alloy 800H/800HT round bar has excellent resistance to carburizing, oxidation and nitriding. They are not prone to embrittlement even after extended operation at temperatures up to 12000F to 16000F.

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The 800 variety has a higher carbon content than the straight 800 variety, which allows for higher creep. Incoloy 800 HT has a restricted elemental structure within the standard 800H chemical composition range, but also requires heat treatment.

Incoloy 8Incoloy 800 H is an iron-nickel-chromium alloy with the same basic composition as Incoloy 800 with significantly higher creep rupture strength. Higher strength results from tight control of carbon, aluminum and titanium content and high temperature annealing. The 800H modification is to control carbon (0.05 to 0.10%) and grain size (>ASTM 5) to optimize stress fracture properties.

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