Monel K500

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Product Description

Monel K500

Monel K500

Monel K500 is a Ni-Cu alloy with age-hardening properties imparted by alloying additions of aluminium and titanium. Its basic composition is similar to that of Monel 400 but the alloying additions make it age hardenable under controlled conditions of temperature and time.
Characteristics of Monel K500
•excellent corrosion resistance in an extensive range of natural and chemical environments
•excellent resistance to chloride-ion stress-corrosion cracking
•very high strength and hardness After age-hardening

After age-hardening of characeristics of Monel K500

•approximately 2 to 3 times higher mechanical properties than the Monel 400
•high tensile properties up to about 650℃
•good fatigue and corrosion fatigue resistance
•low permeability; non-magnetic down to -135℃

Density: 8.47
Corrosion resistance

In general, the corrosion resistance of Monel K500 Alloy is similar to that of Monel 400 Alloy. Excellent resistance is shown to a wide range of media from pure water to mineral acids, salts and alkalis. Monel K500 Alloy is virtually immune to chloride-ion stress-corrosion cracking. In the aged condition, the alloy may be susceptible to stress-corrosion cracking in moist, aerated hydrofluoric acid vapour at stresses near the yield strength. In high-velocity seawater and in marine atmospheres, good corrosion resistance is shown but, in slow-moving or stagnant seawater, pitting may occur. Monel K500 Alloy also shows good resistance in sour-gas environments.

Applications of Monel K500:

Monel K500 Alloy finds wide application in the marine, chemical, petrochemical and shipbuilding industries.
Typical applications are:
•valve seals, pump sleeves and wear rings in marine environments – high strength and resistance to seawater
•pump shafts for fire-fighting pumps – high strength (resulting in smaller diameter shafts) and resistance to flowing seawater
•fasteners, e.g. bolts, used in marine atmospheres and tidal waters – resistance to chloride-containing environments
•doctor blades and scrapers
•towing cable armouring – high strength, non-magnetic properties and resistance to seawater
•springs – resistance to a variety of corrosive media
•oil well drilling equipment such as non-magnetic drill collars, valves and instrumentation sleeves – resistance to chloride-containing media and sour-gas environments
•aviation instrument components – non-magnetic properties

Chemical composition

 Ni  Fe  C  Mn  Si  Cu  Al  Ti  S  P  Zn  Pb  Sn
 min(%)  63.0  27.0  2.30  0.35
 max(%)  2.0  0.18  1.5  0.50  33.0  3.15  0.85  0.010

Mechanical properties

 Condition  Yield Strength(Mpa)  Tensile Strength(Mpa)  Elongation(%)  Hardness(HB)
 ASTM Min Value  Soft Annealed Aged  690  965  20  265
 Typical Values at RT  Hot worked Aged  902  1078  35  305
 Typical Values at RT  Cold worked Aged  902  1078  22  310
 Typical Values at RT  Soft Annealed Aged  686  1000  28  285

International Specification Comparison chart

 Material  Round Bar  Plate
 JIS  NW5500  H4553  H4551
 DIN  2.4375  17752

Product: Sheet, Coil, Pipe, Bar, Wire and Forgings