Alloy 800H/HT

(UNS NO8810/08811)

A nickel – chromium alloy designed for use from cryogenic to elevated temperature in the 0 0 range of 2000 F (1093 ). The high nickel content of the alloy enables it to retain considerable resistance under reducing conditions and makes it resistant to corrosion by a number of organic and inorganic compounds. The nickel chloride-ion stresscorrosion cracking and also provides excellent resistance to alkaline solutions, Its chromium content gives the alloy resistance to sulphur compounds, various oxidising environments and makes it superior to commerciall pure nickel under oxidising conditions.

Specifications

Ni + Co
Cr
Al
Ti
Fe
C
Si
Mn
30.0-35.019.0-23.00.15-0.600.15-0.60Balance0.10 max0.41.50 max

Compositions

Forms
ASTM
ASME
Plate,Sheet
B-409
SB-409
Seamless Tube
B-163
SB-163
and /or pipe
B-407
SB-407
Bar
B-408
SB-408
Forgings
B-564
SB-564