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Incoloy 800h

Incoloy 800 H 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 800H modification was to control carbon (0.05 to 0.10%) and grain size to (>ASTM 5) to optimize stress rupture properties.

Chemical Composition:

Grade

%

Ni

Cr

C

Mn

Fe

Incoloy800H

Min

30

19

0.05


Rest

Max

35

23

0.1

1.5

Si

Cu

S

Al

Ti

P




0.15

0.15


1

0.75

0.015

0.6

0.6

0.03


Standard of execution:

Form

                    ASTM

Rod

                    B 574

Plate, sheet and strip

                    B 575

Seamless pipe and tube

                    B 622

Welded pipe

                    B 619, B 775

Welded tube

                    B 626, B 751

Welding fitting

                    B 366

Forged or rolled pipe flange and forged fitting

                    B 462

Billet and bar for reforging

                    B 472

Forging

                    B 564


Characteristic as below:
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

Application field of Incoloy 800H:
Valves, fittings and other components exposed to corrosive attack from 1100-1800° F
Industrial furnaces
Heat-treating equipment
Chemical and petrochemical processing
Super-heater and re-heaters in power plants
Pressure vessels
Heat exchangers

In what form is Incoloy 800H available at Taixin?
Sheet
Plate
Bar
Pipe & Tube (welded & seamless)
Fittings
Wire


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