monel k500

Unifit Metalloys Inc (UMI) Unifit Metalloys Inc offer a wide range of ASTM B163 Monel K500 Round Bars, Sheets, Pipe Fittings, Flanges and Fasteners using high quality raw materials. We are Manufacturers, Supplier and Exporters of all types of Monel K500 Material. Our range of Monel Pipes provide excellent resistance against corrosive media, alkalies and high temperature. Our Monel K500 Pipes & Tubes are available in different outer diameter as per the requirements of the clients. These Monel K500 Pipes & Tubes are widely used in various application industries like petrochemicals plants, oil refineries, fertilizers plants and many others.

Monel K500
UNS N05500 / W.Nr. 2.4375
Alloy K500, commonly referred to as “K-Monel”, is a precipitation hardenable, nickel-copper alloy with similar corrosion resistance to that of Alloy 400 but with greater strength. Typical industrial applications for Alloy K500 include fasteners, springs and chains for marine service, pump and valve components for chemical processing facilities as well as blades and scrapers used in pulp and paper production. Oil and gas production utilize Alloy K500 for drill collars, instruments, pump shafts, impellers and valves as well as for sensors and electronic components.
Forms of Monel K500 Available at UNIFIT METALLOYS INC

  • Bar
  • Rod
  • Sheets
  • Plates
  • Fittings
  • Flanges

Specifications

Baz

Rod

AMS 4676

AMS 4676

Resistance to Corrosion
The corrosion resistance of Alloy K500 is virtually the same as Alloy 400 with exception when in the agehardened condition, Alloy K500 is more susceptible to stress-corrosion cracking in certain environments. Resistance to hydrogen sulfide makes Alloy K500 useful in sour-gas environments making it extremely popular in the oil patch. Low corrosion rates in sea water make Alloy K500 suitable for marine service although pitting may occur in stagnant waters but the rate of pitting slows after initial attack.

Chemical Composition, %

Ni

Cu

Al

Ti

C

Mn

Fe

S

Si

63.0-70.0

Remainder

2.30-3.15

0.35-0.85

0.25 max

1.5 max

2.0 max

0.01 max

0.50 max

Mechanical Properties / Typical Room Temperature Tensile Properties of Annealed Material

Product Form

Condition

Tensile (ksi)

.2% Yield (ksi)

Elongation %

Hardness

Rod & Bar

Hot-Finished/Aged

140-190

100-150

30-20

27-38 HRC

Rod & Bar

Hot Finished/Annealed

90-110

40-60

45-25

75-90 HRB

Rod & Bar

Hot Finished/Annealed/Aged

130-165

85-120

35-20

24-35 HRC

Rod & Bar

Cold-Drawn/Aged

135-185

95-160

30-15

25-41 HRC

Rod & Bar

Cold-Drawn/Annealed/Aged

130-190

85-120

30-20

24-35 HRC

Plate

Hot-Finished/Aged

140-180

100-135

30-20

27-37 HRC

Sheet

Cold-Rolled/Annealed

90-105

40-65

45-25

85 HRB Max

Characteristics  of  Monel K500?

  • Corrosion resistance in an extensive range of marine and chemical environments. From pure water to non-oxidizing mineral acids, salts and alkalis.
  • Excellent resistance to high velocity sea water
  • Resistant to a sour-gas environment
  • Excellent mechanical properties from sub-zero temperatures up to about 480C
  • Non-magnetic alloy

Fabrication with Monel K-500

Monel K-500 is readily fabricated by standard commercial procedures.
Welding alloy K-500 is best accomplished by the gas-tungsten-arc welding process. It is recommended that Monel K-500 be annealed when it is welded and that any weldments be stress relieved prior to aging.
Heavy machining of this alloy is best accomplished when the material is in the annealed condition or hot-worked and quenched condition. Age-hardened material however can be finish-machined to close tolerances and fine finishes. Therefore, the recommended practice is to machine slightly oversize, age-harden, then finish to size. During aging, a slight permanent contraction takes place, but little warpage occurs because of the low temperatures and slow cooling rates involved.

 

 

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