Monel K500 UNS N05500 precipitation-hardenable nickel-copper alloy
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Introduction
Monel K500 is a precipitation-hardenable nickel-copper alloy that
combines the excellent corrosion resistance characteristic of Monel
400 with the added advantage of greater strength and hardness.
These amplified properties, strength and hardness, are obtained by
adding aluminum and titanium to the nickel-copper base and by a
thermal processing used to effect precipitation, typically called
age hardening or aging. When in the age-hardened condition, Monel
K-500 has a greater tendency toward stress-corrosion cracking in
some environments than Monel 400. Alloy K-500 has approximately
three times the yield strength and double the tensile strength when
compared with alloy 400. Plus, it can be further strengthened by
cold working prior to precipitation hardening. The strength of this
nickel steel alloy is maintained to 1200° F but stays ductile and
tough down to temperatures of 400° F. Its melting range is
2400-2460° F.
This nickel alloy is spark resistant and non-magnetic to -200° F.
However, it is possible 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. Pickling or bright dipping in acid can remove
this magnetic film and restore the non-magnetic properties.
Density:8.8g/cm3
Character
l Corrosion resistance in an extensive range of marine and chemical
environments. From pure water to non-oxidizing mineral acids, salts
and alkalis.
l Excellent resistance to high velocity sea water
l Resistant to a sour-gas environment
l Excellent mechanical properties from sub-zero temperatures up to
about 480C
l Non-magnetic alloy
Application
l Sour-gas service applications
l Oil and gas production safety lifts and valves
l Oil-well tools and instruments like drill collars
l Oil well industry
l Doctor blades and scrapers
l Chains, cables, springs, valve trim, fasteners for marine service
l Pump shafts and impellers in marine service
Equal grade
UNS N05500, Alloy K500
Chemical composition (%)
Ni=63.0~70.0, Al=2.30~3.15, Ti=0.35~0.85, C≤0.25, Mn≤1.5, Fe≤2.0,
S≤0.010, Si≤0.50, Cu=Remainder
Standards
AMS 4675
AMS 4676
ASTM B865
Forms of Monel K500 available at A-one Alloy
Plate, strip, bar, wire, pipe, forging, flange, fastener
Delivery
Please contact A-one Alloy for confirmation
