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800H / 800HT NICKEL PLATE

800H / 800HT NICKEL PLATE

Nickel Alloy 800H/800HT are nickel-iron-chromium alloys that give high strength a superb resistance to oxidization and carburization at high temperatures. They additionally provide glorious resistance in several binary compound environments. Their nickel content makes the alloys extremely immune...

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Nickel Alloy 800H/800HT are nickel-iron-chromium alloys that give high strength a superb resistance to oxidization and carburization at high temperatures. They additionally provide glorious resistance in several binary compound environments. Their nickel content makes the alloys extremely immune to each chloride and stress-corrosion cracking. Alloy 800H and Alloy 800HT are identical aside from the upper level of carbon in Alloy 800H, and therefore the addition of up to one.00 % aluminium and atomic number 22 in Alloy 800HT.



800H Chemical Comp %:


Ni

Cr

Fe

C

Mn

Si

Cu

P

S

Al

Ti

Al+Ti

MIN

30.0

19.0

Bal.

0.06

0.5

0.2

-

-

-

0.20

0.20

-

MAX

32.0

22.0

Bal.

0.08

1.0

0.6

0.5

0.015

0.010

0.40

0.50

0.7

 

800HT Chemical Comp %:


Ni

Cr

Fe

C

Mn

Si

Cu

P

S

Al

Ti

Al+Ti

MIN

30.0

19.0

Bal.

0.06

0.5

0.2

-

-

-

0.30

0.30

0.85

MAX

32.0

22.0

Bal.

0.10

1.0

0.6

0.5

0.015

0.010

0.60

0.60

1.2



Features:               

High creep and rupture strength

Excellent resistance to oxidization because of high atomic number 24 and nickel content

Good resistance to carburizing environments

Good resistance to several sulfur-containing environments

Good weldability



Applications:

Industrial heating (radiant tubes, muffles, retorts, different chamber fixtures)

Power generation 

Heat Exchangers

A wide vary of extra applications involving long exposure to elevated temperatures and corrosive atmospheres

Pressure vessels



Corrosion Resistance:

The metallic element and nickel content of alloy 800H/HT are above that of the acquainted 304 stainless-steel alloy. beneath several conditions of service, performance of alloy is comparable. for instance, comparable behavior may be expected in most rural and industrial atmospheres and in chemical media like aqua fortis and organic acids. Neither alloy is recommended for vitriol service except at lower concentrations and temperatures. just like the primary solid solution unsullied steels, alloy 800H/HT are subject to sensitization (precipitation of metallic element carbides at grain boundaries) if heated for excessive time within the 1000-1400?F temperature vary. The susceptible metal is also subject to intergranular attack by sure corrosive agents, as well as pickling acids or the boiling 65-percent chemical element acids (Huey) check.


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