Incoloy 800, 800H, and 800HT are nickel-iron-chromium alloys with excellent strength and good resistance to rust and carburization in high temperature exposure. These types of nickel metal alloys are the same with the exception of the higher degree of carbon in alloy 800H, along with the addition of approximately 1 .20 % aluminum and also titanium in alloy 800HT. Incoloy 800 was the very first of the alloys also it was a little modified into Incoloy 800H. This customization was to regulate carbon (.05- .10%) and also grain size to maximize stress rupture properties. Incoloy 800HT have more modifications to the joined titanium and also aluminum levels (.85-1 .20%) to assure ideal high temperatures properties. The nickel alloy is double certified (800H/HT) and also includes the properties of both forms. Incoloy 800H/HT alloy was designed for high temperatures structural applications. The nickel content can make the alloys high resistant against both chloride stress-corrosion cracking also to embrittlement from precipitation of sigma phase. The common corrosion resistance is very useful. In the solution annealed condition, alloys 800H and 800HT include excellent creep and also stress rupture properties.
Incoloy 800/H/Ht Pipe & Tubing
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Standards – Incoloy 800 / 800H / 800Ht Pipe & Tubing
Summary | Standards |
---|---|
Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes | ASTM B 163 |
Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube | ASTM B 407 |
Standard Specification for Welded Nickel-Iron-Chromium Alloy Pipe | ASTM B 514 |
Standard Specification for Welded UNS N08120, UNS N08800, UNS N08810, and UNS N08811 Alloy Tubes | ASTM B 515 |
Mechanical Properties – Incoloy 800 / 800H / 800Ht Tubing & Pipe
Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2″, Unit : % , MinimumValues as per ASTM B 163
Condition & Grade | Tensile Strength | Yeild Strength | Elognation |
---|---|---|---|
Annealed Incoloy 800 | 75(517) | 30 (207) | 30 |
Annealed Incoloy 800H | 65 (448) | 25 (172) | 30 |
Annealed Incoloy 800HT | 65 (448) | 25 (172) | 30 |
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Incoloy 800 / 800H / 800Ht Pipe
Stocking & Supplying Seamless & Welded Pipes as small as 1/4″ NB and 6″ NB. Thickness ranging from Sch 10 to Sch 80.

Incoloy 800 / 800H / 800Ht Tube / Tubing
Stocking & Supplying Seamless & Welded Tubes / Tubing from 6mm OD to 101.6mm OD. Thickness ranging from 0.8mm to 6mm.