Incoloy 800H
Description:
The Incoloy 800H nickel alloy has the same basic composition asIncoloy alloy 800 but with significantly higher creep and rupture strength. It boasts excellent aqueous corrosion resistance in high temperature (up to 500¡æ) aqueous media.
The Incoloy alloy 800H features great corrosion resistance to nitric acid and organic acid as well as oxidation and non-oxidation salt but weaker corrosion resistance to sulfuric acid, hydrochloric acid and halide. Furthermore, the corrosion resistant alloy shows high corrosion resistance when used in the combination of water and steam as well as the combination of air and carbon dioxide.
Resistance to prolonged exposure to elevated temperatures
Excellent resistance to oxidation, sulfidation, and carburization
Added Carbon and annealing treatment allows for higher creep and rupture properties above 1100¡ãF (600¡ãC)
Resistant to high temperature corrosion
Readily machined by standard methods
Best joined/welded using products for high temperature situations
Resistance to aqueous corrosion at moderate temperatures
These fantastic properties are the primary reasons of wide applications of Incoloy 800H nickel alloy, including nitric acid condenser, steam heating pipe, heating element tube, etc.
Industrial furnace components and equipment
Petrochemical and chemical processing
Equipment for Heat-Treating
Pressure vessels and heat exchangers
Hydrocarbon cracking
Specifications
|
UNS |
W. Nr |
|
N08810 |
1.4958 |
Chemical Compositions
|
Composition |
Ni |
Cr |
Fe |
C |
Mn |
Si |
Cu |
S |
Al |
Ti |
P |
|
|
Content (%) |
Min. |
30 |
19 |
Bal, |
0.05 |
|
|
|
|
0.15 |
0.15 |
|
|
Max. |
35 |
23 |
0.10 |
1.5 |
1 |
0.75 |
0.015 |
0.60 |
0.60 |
0.03 |
||
Mechanical Properties (Minimum value at 20¡æ)
|
Tensile Strength (¦Òb/MPa) |
Yield Strength (¦Òp0.2/MPa) |
Elongation (¦Ò5/%) |
|
450 |
180 |
35 |
Product Forms and Standards
|
Bar |
Forging |
Sheet/Strip |
Wire |
Pipe |
|
ASTM B408 |
ASTM B564 |
ASTM B409 |
ASTM B408 |
ASTM B407 ASTM B514 |