Monel® Alloy K-500
Atlanta Rod
manufactures Monel® alloy K-500 hex bolts, studs, and nuts to
your custom specifications, and we guarantee to meet your
delivery schedule. At Atlanta Rod and Manufacturing Co., Inc.
we strive to provide our customers with the most innovative
products and quality materials in the industry.
Monel® alloy K-500 is a nickel-copper alloy which
combines the excellent corrosion resistance of Monel® alloy 400
with the added advantages of greater strength and hardness. The
increased properties are obtained by adding aluminum and
titanium to the nickel-copper base, and by heating under
controlled conditions so that submicroscopic particles of Ni3
(Ti, Al) are precipitated throughout the matrix. The thermal
processing used to effect precipitation is commonly called age
hardening or aging. The composition of the alloy is given below.
A useful characteristic of the alloy is that it
is virtually nonmagnetic, even at quite low temperatures. It is
possible, however, to develop a magnetic layer on the surface of
the material during processing. Aluminum and copper may be
selectively oxidized during heating, leaving a magnetic
nickel-rich film on the outside of the piece. The effect is
particularly noticeable on thin wire or strips where there is a
high ratio of surface to weight. The magnetic film can be
removed by pickling or bright dipping in acid, and the
nonmagnetic properties of the material will be restored.
The combination of low magnetic permeability,
high strength and good corrosion resistance gives this alloy and
advantage has been used in a number of applications, notably
oil-well surveying equipment and electronic components. Monel®
alloy K-500 has been found to have exceptionally good
dimensional stability, both in long-time exposure tests and in
cyclic tests. This property of the alloy has led to its use in
high-precision devices, such as gyros.
The corrosion resistance of Monel® alloy K-500
is substantially equivalent to that of alloy 400 except that,
when in the age-hardened condition, alloy K-500 has a greater
tendency toward stress-corrosion cracking in some environments.
Monel® alloy K-500 has been found to be
resistant to a sour-gas environment. The combination of very low
corrosion rates in high velocity sea water and high strength
make alloy K-500 particularly suitable for shafts of centrifugal
pumps in marine service. In stagnant or slow-moving sea water,
fouling may occur followed by pitting, but this pitting slows
down after a fairly rapid initial attack
Applications
for MONEL® alloy K-500:
Chains
and cables, fasteners and springs for marine service
Pump and valve components for chemical processing
Doctor blades and scrapers for pulp processing in
paper production
Oil well drill collars and instruments, pump
shafts and impellers, non-magnetic housings,
safety lifts and
valves for oil and gas production
Sensors and other electronic components
For quotes, please call, fax, or email our sales
department.
|
Limiting Chemical Composition, %, of
MONEL® Alloy K-500
Nickel (plus Cobalt)
.....................................................63.0
min.
Carbon........................................................................0.25
max.
Manganese
...................................................................1.5
max.
Iron................................................................................2.0
max.
Sulfur
..........................................................................0.01
max.
Silicon
...........................................................................0.5
max.
Copper
......................................................................27.0
- 33.0
Aluminum
..................................................................2.30
- 3.15
Titanium
....................................................................0.35
- 0.85 |
For quotes,
please call, fax, or email
sales@atlrod.com
Information from Special Metals
Corporations, owner of the Monel® alloy K-500 trademark.
