Monel® Alloy 400
Atlanta Rod
manufactures Monel® alloy 400 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® nickel-copper alloy 400 is a solid
solution binary alloy combining high strength and toughness over
a wide temperature range with excellent resistance to many
corrosive properties. Alloy 400 has been used at temperatures
up to 800°F-1000°F in sulfur-free oxidizing atmospheres. It
also displays excellent mechanical properties at sub-zero
temperatures since it does not undergo a ductile-to-brittle
transition even at such temperatures. This alloy is
strengthened by cold work and is readily fabricated.
Monel® alloy 400 is a
solid-solution alloy that can be hardened only by cold working.
It has high strength and toughness over a wide temperature range
and excellent resistance to many corrosive environments.
Composition is shown in Table 1. Monel® alloy 400 is widely used
in many fields, especially marine and chemical processing.
Monel® alloy 400 has excellent mechanical
properties at subzero temperatures. Strength and hardness
increase with only slight impairment of ductility or impact
resistance. The alloy does not undergo a ductile-to-brittle
transition even when cooled to the temperature of liquid
hydrogen. This is in marked contrast to many ferrous materials
which are brittle at low temperatures despite their increased
strength.
Monel® alloy 400 exhibits
resistance to corrosion by many reducing media. It is also
generally more resistant to attack by oxidizing media than
higher copper alloys. This versatility makes Monel® alloy 400
suitable for service in a variety of environments. Monel® alloy
400 is widely used in marine applications. While Monel® alloy
400 products exhibit very low corrosion rates in flowing
seawater, stagnant conditions have been shown to induce crevice
and pitting corrosion. Monel® alloy 400 is also resistant to
stress corrosion cracking and pitting in most fresh and
industrial waters. Monel® alloy 400 offers exceptional
resistance to hydrofluoric acid in all concentrations up to the
boiling point. It is perhaps the most resistant of all commonly
used engineering alloys. Monel® alloy 400 is also resistant to
many forms of sulfuric and hydrochloric acids under reducing
conditions.
|
Limiting Chemical Composition, %, of
Monel® Alloy 400
Nickel (plus Cobalt)
...................................................63.0
min.
Carbon...........................................................................0.3
max.
Manganese
...................................................................2.0
max.
Iron................................................................................2.5
max.
Sulfur
........................................................................0.024
max.
Silicon
...........................................................................0.5
max.
Copper
.......................................................................28.0
- 34.0 |
Applications for Monel® alloy 400:
Valves and pumps
Pump and propeller shafts
Marine fixtures and fasteners
Chemical processing equipment
Gasoline and fresh water tanks
Crude petroleum tills
Process vessels and piping
Boiler feed water heaters, de-aerating heaters,
and other heat exchangers
For quotes,
please call, fax, or email
sales@atlrod.com
Information from Special Metals Corporations,
owner of the Monel ® alloy 400 trademark,
and Carpenter Technology Corp.
