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Danyang Kaixin Alloy Material Co., Ltd.
Monel K-500
Product properties:

Product Name: Monel K-500 Nickel Alloy

Equivalent Grades: UNS N05500 / Alloy K-500 / Monel K500 / W.Nr. 2.4375

Material Type: Nickel-Copper-Aluminum Alloy

Product Forms: Welding Wire, TIG Rod, MIG Wire, Strip, Round Bar, Billet & Customized Products

Manufacturing Process: VIM + ESR (Vacuum Induction Melting & Electroslag Remelting)

Standards: ASTM B865, ASTM B865M, AWS A5.14, ISO 18274, EN 10204

Certification: ISO9001:2015, ISO45001:2018, ISO14001:2015

Manufacturer: Danyang City Kaixin Alloy Material Co., Ltd.

Email: kaixinalloy@kx-alloy.com

Phone: +86 13776484780

Product Description

Monel K-500 (UNS N05500 / Alloy K-500) is a nickel-copper-aluminum alloy with excellent corrosion resistance, high strength, fatigue resistance, and superior mechanical properties. Designed for harsh environments including seawater, saltwater, chemical media, and high-stress conditions, it delivers reliable performance across marine engineering, oil & gas, aerospace, and industrial equipment applications.

Properties & Applications

 

Monel K-500 Key Features

Monel K-500 offers exceptional resistance to seawater corrosion, saltwater environments, hydrofluoric acid, alkalis, and chloride media, combined with high tensile strength, excellent fatigue resistance, superior wear resistance, good toughness, stable mechanical properties at sub-zero and elevated temperatures, non-magnetic characteristics in suitable conditions, and long-term reliability in demanding marine, oil & gas, and industrial applications.

 

Monel K-500 Product Application

Monel K-500 (UNS N05500 / Alloy K-500) is a high-performance nickel-copper-aluminum alloy widely used in industries requiring excellent corrosion resistance, high strength, fatigue resistance, and wear resistance. Designed for harsh service environments, Nickel Alloy K-500 performs reliably under seawater exposure, high mechanical loads, corrosive media, and demanding industrial conditions.

Typical Monel K-500 applications include:

Marine & Offshore Engineering: Marine shafts, propeller shafts, pump components, seawater valves, fasteners, offshore structures, and seawater service equipment.

Oil & Gas: Downhole components, oil well tools, drilling equipment, valves, pumps, springs, and high-strength parts exposed to corrosive fluids.

Chemical Processing: Chemical pumps, process equipment, valves, fasteners, and components requiring resistance to corrosive chemicals and high mechanical stress.

Aerospace: High-strength fasteners, precision components, aircraft parts, and structural components requiring excellent mechanical performance and corrosion resistance.

Power Generation: Pump shafts, valve components, heat exchanger parts, and equipment used in corrosive industrial environments.

Desalination & Water Treatment: Seawater pumps, pressure systems, valves, and components used in saltwater handling applications.

Industrial Equipment: Springs, gears, shafts, and wear-resistant components requiring high strength, fatigue resistance, and dimensional stability.

With its outstanding combination of corrosion resistance, high strength, and long-term durability, Monel K-500 remains one of the most trusted nickel-copper alloys for marine, oil & gas, aerospace, and high-performance industrial applications worldwide.

 

Kaixin Alloy offers custom alloy compositions, sizes, dimensions, and product specifications according to customer requirements.

Monel K-500Composition content
Ni≥63%
Cu:27%~33%
Al:2.3%~3.15%
Fe≤2.0%
Mn≤1.5%
Ti:0.35%~0.85%
Si≤0.5%
C≤0.25%
S≤0.01%
Vacuum induction furnace
Electroslag remelting
Product physical properties
Density

ρ=8.8 g/cm³

Melting temperature range

1288-1343 ℃

Specifications

Monel K-500 Product Forms & Available Sizes

 

Product Form

Available Sizes

Welding Wire

Diameter: 0.8–5.0 mm

TIG Welding Rod

Diameter: 1.6–6.4 mm

MIG Welding Wire

Diameter: 0.8–1.6 mm

Nickel-Copper Alloy Strip

Thickness: 0.05–6 mm Width: 5–350 mm

Round Bar

Diameter: 6–300 mm

Billet

Diameter: Up to 600 mm

Forged Bar

Customized Sizes

Sheet & Plate

Customized Sizes

Seamless Tube & Pipe

Customized Sizes

Wire Rod

Customized Sizes

Customized Components

Made to Customer Requirements

 

Monel K-500 Mechanical Properties (Typical)

 

Property

Value

Tensile Strength

≥1100 MPa

Yield Strength (0.2%)

≥790 MPa

Elongation

≥15%

Hardness

≥30 HRC

Density

8.44 g/cm³

Melting Range

1315–1350°C

 

Monel K-500 Physical Properties

Property

Value

Density

8.44 g/cm³

Modulus of Elasticity

179 GPa

Thermal Conductivity

17.2 W/m·K

Electrical Resistivity

0.62 μΩ·m

Specific Heat

419 J/kg·K

Coefficient of Thermal Expansion

13.7 μm/m·°C

Magnetic Property

Slightly magnetic after age hardening

 

 

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Quality Control & Certification
Monel K-500 Product Quality Inspection & Third-Party Certification

Kaixin Alloy manufactures Monel K-500 (UNS N05500 / Alloy K-500 / W.Nr. 2.4375) in compliance with ASTM B865, ASTM B865M, ASTM B564, AWS A5.14, ISO 18274, and EN 10204.

Every production batch is tested for:

Chemical Composition Analysis

PMI Verification

Tensile & Yield Strength Testing

Hardness Testing

Non-Destructive Testing (NDT)

Final Product Inspection

We provide EN 10204 3.1 Certificates, Mill Test Certificates (MTCs), and full material traceability to ensure reliable performance for marine engineering, oil & gas equipment, chemical processing, aerospace components, seawater systems, and high-strength industrial applications.

Monel K-500 Production process