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Incoloy 800HT UNS N08811 Nickel Alloy Seamless Tubes








800H Characteristic as below:
1.Excellent corrosion resistance in the high temperature at 500℃ in the water medium.
2.Good stress corrosion resistance properties.
3.Good machining


Incoloy 800HT Metallurgical structure:
800H is face-centered cubic lattice structure. very low carbon centent and increased Ti:C rate,improve the stability of the structure, anti-allergy , and anti-intergranular corrosion. Low temperature annealing of 950℃ ensure the fine grain structure

ncoloy 800HT Corrosion resistance:
800H can not be corroded in many kinds of media. Its high nickel content made it have good stress corrosion resistance cracking properties in the water corrosion condition.High Chromium content made it can better resist pitting and crevice corrosion cracking. This alloy can resist nitric acid and organic acid corrosion, but it is not so fine in the sulfuric acid and hydrochloric acid.

800H not only good corrosion resistance in both oxidation resistance and non-oxidizing salt, maybe a little pitting in halide, but also very good corrosion resistance property in the mixture of water,smoke, steam,air and carbon dioxide.



Incoloy 800HT Application range and field:
1.Nitrate condenser---Corrosion resistance of nitrc acid
2.Steam heating pipes--Very good mechanical properties
3.Heat up element tube--Very good mechanical properties

Incoloy Alloy Specification:

ASME SB163 Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes

ASME SB165 Standard Specification for Nickel-Copper Alloy (UNS N04400)* Seamless Pipe and Tube

ASME SB167 Standard Specification for Nickel-Chromium-Iron Alloys, Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617),and Nickel-Iron-Chromium-Tungsten Alloy (UNS N06674) Seamless Pipe and Tube

ASME SB407 Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube

ASME SB423 Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825, N08221, and N06845) Seamless Pipe and Tube

ASME SB444 Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube

ASME SB622 Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube

ASME SB668 UNS N08028 Seamless Pipe and Tube

ASME SB690 Standard Specification for Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Seamless Pipe and Tube

ASME SB729 Standard Specification for seamless UNS N08020, UNS N08026, and UNS N08024 nickel alloy pipe and Tube

Incoloy 800HT Chemical composition:
Alloy
%
Ni
Cr
Fe
C
Mn
Si
Cu
S
Al
Ti
800

Min.

30
19
 
 
 
 
 
 
0.15
0.15
Max.
35
23
balance
0.10
1.5
1
0.75
0.015
0.60
0.60
800H

Min.

30
19
 
0.05
 
 
 
 
0.15
0.15
Max.
35
23
balance
0.10
1.5
1
0.75
0.015
0.60
0.60
800HT

Min.

30
19
 
0.06
 
 
 
 
0.15
0.15
Max.
35
23
balance
0.10
1.5
1
0.75
0.015
0.60
0.60
AI+Ti: 0.85-1.20

Incoloy 800HT Physical properties:
Density
8.0 g/cm³
Melting point
1350-1400 ℃

Incoloy 800HT Alloy minimum mechanical properties in the room temperature
Alloy
Yield strength
R P0. 2N/mm²
Elongation
A 5 %
800
500
210
35
800H
450
180
35



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Nickel Alloy Seamless Tubes:

UNS N08020 2.4600 Nickel Alloy 20 Seamless Tubing
UNS N02200 2.4066 200 Nickel Alloy Seamless Tubing
UNS N04400 400 Nickel Alloy 2.4360 Nickel Alloy Tubing
UNS N08800 800 Nickel Alloy Seamless Tubes
UNS N08810 800H UNS N08810 Nickel Alloy Seamless Tubes
UNS N08811 800HT Nickel Alloy Seamless Tubes
UNS N08825 825 2.4858 Nickel Alloy Seamless Tubes
UNS N06600 600 2.4816 Nickel Alloy Seamless Tubes
UNS N06625 625 2.4856 Nickel Alloy Seamless Tubes
UNS N10276 C-276 2.4819 Nickel Alloy Seamless Tubing
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