NICKEL ALLOYS

Incoloy 800H | EN 1.4958

Incoloy 800H

Description

Incoloy 800H is an iron-nickel-chromium alloy having the same basic composition as Incoloy 800, with significantly higher creep rupture strength. The higher strength results from close control of carbon, aluminum and titanium contents in conjunction with a high temp anneal. The alloy's modification was to control carbon (0.05 to 0.10%) and grain size to ( greated than ASTM 5) to optimize stress rupture properties. The alloy has further modifications to the combined titanium and aluminum levels (0.85 to 1.2%) to ensure optimum high temperature properties. The alloy is dual certified and combines the properties of both forms. The alloy is capable of remaining stable and maintaining its austenitic structure even after long time exposures to high temperatures.

Applications of Incoloy 800H

  • Heat Exchangers and Process Piping
  • Carburizing Fixtures and Retorts
  • Furnace Components
  • Electric Range Heating-Element Sheathing
  • Extruded Tubing for Ethylene and Steam Methane Reforming Furnaces
  • Ammonia Effluent Coolers
Download Datasheet

EQUIVALENT STANDARDS

ASTM AISI EN DIN UNS IS
Alloy 800H Incoloy 800H 1.4958 X5NiCrAlTi31-20 N08810

CHEMICAL PROPERTIES

C Mn Ni Cr N Si
0.05 1.5 30 20 0.03 0.7
Cu Ti Co P Al Nb
0.5 0.2 0.5 0.31 0.1

MECHANICAL PROPERTIES

YSRp02 TSRm A HRB
170 500 35 90

Available Forms Of Incoloy 800H | EN 1.4958

SheetsSheets Hover Turn
CoilsCoils Hover Turn
Round PipesRound Pipes Hover Turn
FlangesFlanges Hover Turn
Hex BarsHex Bar Hover Turn
Round BarsRound Bar Hover Turn
FittingsFittings Hover Turn
Square BarsSquare Bars Hover Turn
Square Rectangle Pipes TubesShape Pipes Hover Turn

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