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Incoloy 800H elbows to the combined titanium and aluminum levels

To avoid possible stress relaxation grain boundary cracking of N08811 in applications above 1000¡ãF the welded fabrication may be heated 1650¡ãF for about one hour per inch of thickness or 30 minutes minimum then air cooled.

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Incoloy 800, 800H, and 800HT are nickel-iron-chromium alloys with good strength and excellent resistance to oxidation and carburization in high-temperature exposure. It also shows resistance to carburization when exposed to high-temperature environments. Incoloy 800, 800HT, & 800H are almost similar in terms of properties. However, the difference in 800H comes from the fact that there is a higher percentage of carbon in this alloy.

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