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Detailed Selling Lead DescriptionBrand: LANZHU
Model: 板材、管材、棒材、丝材、锻件、环件、法兰
INCONEL® nickel-chromium alloy 625 (UNS
N06625/W.Nr. 2.4856) is used for its high strength,
excellent fabricability (including joining), and outstanding
corrosion resistance. Service temperatures range
from cryogenic to 1800°F (982°C). Composition is
shown in Table 1.
Strength of INCONEL alloy 625 is derived from the
stiffening effect of molybdenum and niobium 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.
The properties of INCONEL alloy 625 that make it an
excellent choice for sea-water applications are freedom
from local attack (pitting and crevice corrosion), high
corrosion-fatigue strength, high tensile strength, and
resistance to chloride-ion stress-corrosion cracking. It is
used as wire rope for mooring cables, propeller blades
for motor patrol gunboats, submarine auxiliary propulsion
motors, submarine quick-disconnect fittings,
exhaust ducts for Navy utility boats, sheathing for
undersea communication cables, submarine transducer
controls, and steam-line bellows. Potential applications
are springs, seals, bellows for submerged controls, electrical
cable connectors, fasteners, flexure devices, and
oceanographic instrument components.
High tensile, creep, and rupture strength; outstanding
fatigue and thermal-fatigue strength; oxidation resistance;
and excellent weldability and brazeability are the
properties of INCONEL alloy 625 that make it interesting
to the aerospace field. It is being used in such applications
as aircraft ducting systems, engine exhaust systems,
thrust-reverser systems, resistance-welded honeycomb
structures for housing engine controls, fuel and
hydraulic line tubing, spray bars, bellows, turbine
shroud rings, and heat-exchanger tubing in environmental
control systems. It is also suitable for combustion
system transition liners, turbine seals, compressor
INCONEL® alloy 625
Table 1 - Limiting Chemical Composition, %
aIf determined
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vanes, and thrust-chamber tubing for rocket motors.
The outstanding and versatile corrosion resistance of
INCONEL alloy 625 under a wide range of temperatures
and pressures is a primary reason for its wide
acceptance in the chemical processing field. Because of
its ease of fabrication, it is made into a variety of components
for plant equipment. Its high strength enables it
to be used, for example, in thinner-walled vessels or
tubing than possible with other materials, thus improving
heat transfer and saving weight. Some applications
requiring the combination of strength and corrosion
resistance offered by INCONEL alloy 625 are bubble
caps, tubing, reaction vessels, distillation columns, heat
exchangers, transfer piping, and valves.
In the nuclear field, INCONEL alloy 625 may be used
for reactor-core and control-rod components in nuclear
water reactors. The material can be selected because of
its high strength, excellent uniform corrosion resistance,
resistance to stress cracking and excellent pitting resistance
in 500°-600°F (260-316°C) water. Alloy 625 is
also being considered in advanced reactor concepts
because of its high allowable design strength at elevated
temperatures, especially between 1200°-1400°F
(649-760°C).
The properties given in this bulletin, results of extensive
testing, are typical of the alloy but should not be
used for specification purposes. Applicable specifications
appear in the last section of this publication.
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