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Nickel-Based Alloys

Incoloy 800HT

Incoloy 800HT ensures higher stress rupture and creep properties compared to Incoloy 800H as a result of restricting the carbon content further in the range of 0.06 to 0.10% (Incoloy 800H is 0.05 to 0.10%), and the aluminum plus titanium content at 0.85 to 1.20% (Incoloy 800H is 0.30 to 1.20%).

Chinese designation: 因科洛依 800HT

Chemical Composition

ElementMin %Max %
Fe39.5—
Ni3035
Cr1923
Mn—1.5
Al+Ti0.851.2
Si—1
Cu—0.75
Al0.150.6
Ti0.150.6
C0.060.1
S—0.015

Chemical composition per the grade specification. Values are nominal; the certified analysis is issued with every order on EN 10204 3.1 documentation.

Product Forms & Standards

Product formASTM / EN specification
Rod and barB 408
Plate, sheet and stripA 240, A 480, B 409, B 906
Seamless pipe and tubeB 407, B 829
Welded pipeB 514, B 775
Welded tubeB 515, B 751
Welding fittingB 366
ForgingB 564

Physical Properties

Density
7.94 g/cm3
Melting range
1357-1385℃

Applications of Incoloy 800HT

  • Chemical and petrochemical process piping, high temperature heat exchangers, furnace components, carburizing equipment, heating-element sheathing, and nuclear power steam superheating tubing.

Frequently Asked Questions

What is Incoloy 800HT?

Incoloy 800HT (UNS N08811, DIN W. Nr. 1.4959) is a nickel-based alloys grade. Incoloy 800HT ensures higher stress rupture and creep properties compared to Incoloy 800H as a result of restricting the carbon content further in the range of 0.06 to 0.10% (Incoloy 800H is 0.05 to 0.10%), and the aluminum plus titanium content at 0.85 to 1.20% (Incoloy 800H is 0.30 to 1.20%).

What forms of Incoloy 800HT do you supply?

ROBAN supplies Incoloy 800HT as rod and bar, plate, sheet and strip, seamless pipe and tube, welded pipe, welded tube, with custom dimensions to your drawing.

Do you provide EN 10204 3.1 material certificates for Incoloy 800HT?

Yes. Every order ships with EN 10204 3.1 material certification covering the actual heat analysis. 3.2 documentation is available where the contract requires it.

What is the lead time for Incoloy 800HT?

Stock items ship within 3 to 7 working days. Cut-to-size and forged items typically run 15 to 30 working days depending on quantity and specification. Send us your drawing or enquiry for a firm lead time.

RFQ

Send the specification

Drawing, grade, dimensions, quantity and delivery date — we price from those.

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MTC

EN 10204 3.1 included

Heat analysis certificate issued with every order at no extra charge.

Quality documentation →
CUT

Cut to your size

Shearing, sawing and machining to the tolerances on your drawing.

Capabilities →

Related Grades in Nickel-Based Alloys

Buyers often substitute within a family once service conditions, corrosion behaviour or fabrication method narrow the choice.