AVAILABILITY
Welded Pipe 1/2" - 8"
Butt Weld Fittings 1/2" - 8"
Flanges 1/2" - 8"
Bar 1" - 4-1/2"
SPECIFICATION
ASTM 8443, 8705, B366, B446, B564
ASME SB443, SB705, SB366, SB446, SB564
DESCRIPTION
Alloy 625 is a Nickel-Chromium alloy used for its high strength, excellent
fabricability and outstanding corrosion resistance. Service temperatures
range from cryogenic to 1800 deg.F. Alloy 625 strength is derived
from the stiffening effect of molybdenium and columbium on its Nickel-Chromium
matrix; thus precipitation-hardening treatments are not required.
This combination of elements also is responsible for superior resistance
to a wide range of corrosive environments of unusual severity as well
as to high-temperature effects such as oxidation and carburization.
DESIGN
FEATURES
Outstanding resistance to pitting, crevice corrosion, impingement
corrosion and intergranular attack.
Almost complete freedom from Chloride induced stress corrosion cracking.
Good resistance to mineral acids, such as nitric, phosphoric, sulphuric
and hydrochloric acids.
Good resistance to alkalis and organic acids.
Good mechanical properties.
TYPICAL
APPLICATIONS
Used for structures in contact with seawater and Subject to high mechanical
stresses
Flue gas scrubbers components
Chimney linings
Superphosphoric acid production equipment
Sour gas production tubes
Offshore industry, marine equipment
High tensile, creep, rupture strength, outstanding fatigue and thermal-fatigue
strength; oxidation resistance; and excellent weldability and brazeability
make it a good choice in the aerospace industry
TENSILE
REQUIREMENTS
Tensile Strength (KSI) 120
Yield Strength (KSI) 60
KSI can be converted to MPA (megapascals) by multiplying by 6.895.
info section