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800H corrosion resistant alloy You are here: Home — 800H Corrosion Resistant Alloy

Incoloy 800H (American Standard UNS N08810 / German Standard W.Nr.1.4958)
Incoloy 800H chemical composition:
alloy
%
nickel
chromium
iron
carbon
manganese
silicon
copper
sulfur
aluminum
titanium
800
Smallest
30
19
0.15
0.15
maximum
35
twenty three
margin
0.10
1.5
1
0.75
0.015
0.60
0.60
800H
Smallest
30
19
0.05
0.15
0.15
maximum
35
twenty three
margin
0.10
1.5
1
0.75
0.015
0.60
0.60
800HT
Smallest
30
19
0.06
0.15
0.15
maximum
35
twenty three
margin
0.10
1.5
1
0.75
0.015
0.60
0.60
Aluminum + titanium is 0.85-1.20
Physical properties of Incoloy 800H:
density
8.0 g / cm3
Melting point
1350-1400 ℃
Incoloy 800H solid solution state, mechanical properties of the alloy at room temperature:
alloy
Tensile strength σb (Mpa)
Yield strength σ0.2 (Mpa)
Elongation
A5%
800
≥500
≥210
≥35
800H
≥450
≥180
≥35
800H alloy has the following characteristics:
800H has excellent corrosion resistance in very high temperature aqueous media up to 500 ℃, good resistance to stress corrosion, and can withstand many corrosive media. Its higher nickel content makes it resistant to stress corrosion cracking in aqueous corrosion conditions. The high chromium content makes it better resistant to pitting and crevice corrosion cracking. The alloy has good resistance to the corrosion of nitric acid and organic acids, but has limited corrosion resistance in sulfuric acid and hydrochloric acid. In addition to the possibility of pitting corrosion in halides, it has good corrosion resistance in oxidizing and non-oxidizing salts. Good corrosion resistance in water, steam and mixtures of steam, air and carbon dioxide
Metallographic structure of Incoloy 800H:
800H is a face-centered cubic lattice structure. Extremely low carbon content and increased Ti: C ratio increase structural stability and maximum resistance to sensitization and resistance to intergranular corrosion. Low temperature annealing around 950 ℃ ensures fine-grained structure
Incoloy 800H Applications
Nitric acid condenser
2.Steam heating tube
3. External storage of electric heating tubes For applications up to 500 กใ C, the alloy is supplied in the annealed state.
Varieties of products produced by our company:
Cold and hot plate, strip, pipe, wire, forged rod, hot rolled rod, machined product
Copyright ? 2013 Jiangsu Xinhua Alloy Co., Ltd. Copyright Statement Su ICP No. 14001587
Address: No. 19 South Zhang Guozhen, Xinghua City, Jiangsu Province Telephone: 0523-83999006 Email: sale01@sz3good.com Technical Support: Taizhou