UNS N05500

Monel K-500

Age-hardenable nickel-copper alloy combining Monel 400 corrosion resistance with much higher strength.

Material overview

Monel K-500 is included in the Nickel-Based Alloys catalog. Age-hardenable nickel-copper alloy combining Monel 400 corrosion resistance with much higher strength. Key characteristics for evaluation include About twice the tensile strength of Monel 400 after aging and good fatigue and corrosion-fatigue resistance. Typical applications include Pump shafts, impellers, marine fasteners, valve trim, oilwell drill collars and instruments, and springs. The dataset currently includes 13 property records covering chemical composition, mechanical properties, and physical properties. Associated standards include B164 and GB/T 15007, and product form records cover Bar / Rod and Forged Product. Final chemistry, mechanical properties, heat treatment, dimensions, inspection, and documentation must be confirmed against the applicable specification and mill certificate.

Key characteristics

  • About twice the tensile strength of Monel 400 after aging
  • good fatigue and corrosion-fatigue resistance

Typical applications

  • Pump shafts
  • impellers
  • marine fasteners
  • valve trim
  • oilwell drill collars and instruments
  • springs

Grade names and equivalents

Alloy K-500genericNCu30Alequivalent2.4375equivalent

Technical properties

Typical values are for reference only. Final chemistry, mechanical properties, heat treatment, dimensions, inspection, and documentation are confirmed against the applicable specification and MTC/COA before order acceptance.

Chemical composition

PropertyValueUnitCondition / standard
Ni63.0 minwt%Typical value
Cu27.0-33.0wt%Typical value
Al2.30-3.15wt%Typical value
Ti0.35-0.85wt%Typical value
Fe2.0 maxwt%Typical value
C0.25 maxwt%Typical value
Mn1.5 maxwt%Typical value
Si0.5 maxwt%Typical value

Mechanical properties

PropertyValueUnitCondition / standard
Tensile strengthmin 965MPaSolution + aged
Yield strength 0.2%min 690MPaSolution + aged
Elongationmin 20%Solution + aged

Physical properties

PropertyValueUnitCondition / standard
Density8.44g/cm3Typical
Melting range1315-1350CTypical

Standards and specifications

Standard Specification for Nickel-Copper Alloy Rod, Bar, and WireSpecification for Nickel and Nickel Alloy Wrought Products

Forms, applications, and capabilities

Product forms

Industries