Project Description

Incoloy 800 (UNS N08800)

Incoloy 800 (UNS N08800) is a nickel-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. The alloy maintains a stable, austenitic structure during prolonged exposure to high temperatures. Used for process piping, heat exchangers, carburizing equipment, heating element sheathing, and nuclear steam-generator tubing.

Equivalent Grades

TrademarksGBJISKSASTMUNSDINW.NrGOSTBSNF
Nicrofer 3220
Incoloy 800
NS1101
NS111
NCF 800
NCF 2B
NCF 800Incoloy 800N08800X10NiCrAlTi32-201.4876NA15

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings

Chemical Composition,%

CPSMnSiCrNiAlTiCuFe
≤0.10≤0.03≤0.02≤1.50≤1.0019.00~23.0030.00~35.000.15~0.600.15~0.60≤0.75Bal

Typical Physical & Mechanical Properties (RT, Solution Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaElongation,%
8.001357-137560027545

Specifications

Rod, Bar, Wire, ForgingsASTM B408/ASME SB408, ASTM B564/ASME SB564, ISO 9723/9724/9725
Plate, Sheet, StripASTM A240/A480/B409/B906/ASME SA240/SA480/SB409/SB906, ISO 6208
Pipe, TubeASTM B163/ASME SB163, ASTM B407/B829/ASME SB407/SB829, ASTM B514/B775/ASME SB514/SB775, ASTM B515/B751/ASME SB515/SB751, ISO 6207
OthersASTM B366/ASME SB366(Fittings)

Features

  • High temperature strength
  • High creep rupture strength
  • Resistant to oxidation and carburization in high temperature environments
  • Good corrosion resistance in many acidic environments
  • Good resistance to many sulfur-containing atmospheres

Applications

  • Industrial furnaces
  • Heat exchangers
  • Hydrocarbon cracking
  • Ethylene furnace quench boilers
  • Valves, fittings and other components exposed to corrosive attack from 1100-1800° F
  • Chemical & Petrochemical processing