Incoloy 800/H/Ht Pipe Fittings & Flanges

Incoloy 800 is an alloy formed by combining three elements i.e. nickel-iron-chromium. This alloy possesses great strength and high resistance to oxidization and carburization in high-temperature procedures. Incoloy 800, 800H and 800HT are similar, though alloy 800H carries greater percentage of carbon besides an addition of 1.20% aluminum and titanium. The first alloy that was formed out of these was incoloy 800 and then it was modified into incoloy 800H and finally to incoloy 800HT. Another alloy that was further formed by combining the two alloys (800H/HT) and is known as incoloy 800H/HT. This nickel alloy contains the characteristics of both the forms and the core purpose behind its formation is high temperature structural applications. Nickel present in this alloy strengthens it to resist chloride stress-corrosion cracking and prevents the loss of ductility. The alloy is superb with its corrosion resistance.
Properties of incoloy 800H/HT
• High temperature strength
• High creep rupture strength
• Excellent immunity to oxidation and carburization in the high temperature procedures
• Superb corrosion resistance in variety of acidic procedures
• Great ability to resist most processes that include Sulphur

Standards – Incoloy 800 Pipe Fittings & Flanges

Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy FittingsASTM B 366
Standard Specification for Nickel Alloy ForgingsASTM B 564

Mechanical Properties – Incoloy 800 Pipe Fittings

Tensile , Yield & Elongation shall conform to their respective parent material standards.

Mechanical Properties – Incoloy 800 Flanges

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2″, Unit : % , MinimumValues as per ASTM B 564

Condition & GradeTensile StrengthYeild StrengthElognation
Annealed Incoloy 80075(517) max30(207)30
Annealed Incoloy 800H / Ht65(448) max25(172)30

Chemical Industry

Elbow / Bends

Incoloy 800 Elbow / Bends

Long Radius / Short Radius

45˚ , 90˚ & 180˚


Incoloy 800 Reducers




Incoloy 800 Caps


Incoloy 800 Stub Ends




Incoloy 800 Flanges




Lap Joint


Incoloy 800 Fasteners