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Butt-welding Pipe Fittings Incoloy 800 NCF 800 Stub End

ASTM B163 B407 ASME SB163 SB407 N08800 Incoloy 800 Seamless Pipe is especially suitable for high temperature equipment in the petrochemical industry because the alloy does not form an embrittled sigma phase after prolonged exposure to 1200¡ãF (649¡ãC).

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Incoloy 800/800H/800HT are solid solution nickel-chromium-iron alloys with small additions of aluminum and titanium to improve corrosion and oxidation resistance. They are used in high temperature services where resistance to oxidation and carburization is required. For best stress rupture performance, or for pressure vessels above 815¡ãC, Incoloy 800H or Incoloy 800HT should be used.

Excellent resistance to chloride stress corrosion cracking is another important feature of Alloy 800. Alloy 800H is a solution heat treated (2100¡ãF/1150¡ãC) controlled carbon version of Alloy 800 with improved high temperature properties. It has improved creep and stress rupture properties in the temperature range of 1100¡ãF (593¡ãC) to 1800¡ãF (982¡ãC).

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