Molybdenum Wire

Standard: ASTM B387

Material: Pure Mo₃₆₁, MoTZM (Mo₃₆₄), Mo-Lanthanoxid (ML)

Custom sizes and standard sizes in stock
Quick Lead Time
Competitive Price

Molybdenum Wire is made of high-purity molybdenum material through forging and drawing, exhibiting high melting point, excellent thermal conductivity, and low thermal expansion. As a leading supplier and manufacturer of premium molybdenum products, Heeger Materials leverages advanced machining centers to deliver high-precision molybdenum and molybdenum alloy wires for wide ranges of applications.

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Molybdenum Wire Data Sheet

Reference:	HMMO1081
Dimensions:	Diameter: φ 0.05-φ 5 mm Length: TBD (To Be Determined)
Standard:	ASTM B387
Material:	Pure Mo₃₆₁, MoTZM (Mo₃₆₄), Mo-Lanthanoxid (ML)
Purity:	99.95%-99.99%
Wire Type:	Round Wire, Flat Wire, or Square Wire
Product Form:	Straight, Coil, or Spooled
Temper:	Annealed or Unannealed

Molybdenum Wire

Molybdenum Wire is forged and drawn from high-purity molybdenum rods, available in various types including white molybdenum wire, black molybdenum wire, molybdenum spray wire, and EDM molybdenum wire. They possess excellent thermal conductivity, low thermal expansion, and corrosion resistance. They are commonly applied as high-temperature furnace heating components. HM can supply high-precision molybdenum and molybdenum alloy wires with tight tolerances and various specifications. The customized diameters, lengths, wire types, and surface finishes are available according to specific requirements.

White Molybdenum Wire
Black Molybdenum Wire

Molybdenum Wire Specifications

Molybdenum Wire Types	Diameter (inch)	Tolerance (%)
Molybdenum Wire for EDM	0.007″ ~ 0.01″	±3% wt
Molybdenum Spray Wire	1/16″ ~ 1/8″	±1% to 3% wt
Molybdenum Wire (Blax oxided)	0.002″ ~ 0.08″	±3% wt
Molybdenum Wire (Cleaned)	0.006″ ~ 0.04″	±3% wt

Molybdenum Wire Available Stock Dimensions

.005″ Dia x 200 ft	.010″ Dia x 200 ft	.015″ Dia x 200 ft
.025″ Dia x 200 ft	.030″ Dia x 200 ft	.050″ Dia x 200 ft
.080″ Dia x R/L Coil	.090″ Dia x R/L Coil	.125″ Dia x R/L Coi

Molybdenum Wire Production Process

Raw Material: Select high-purity molybdenum powder.
Powder Metallurgy: Mix with binder and compact into a green billet.
Sintering: High-temperature sintering to remove the binder and increase density.
Drawing: Draw the rod to achieve the desired size and finish.
Heat Treatment: Anneal to relieve stress and enhance properties.
Surface Treatment: Clean and polish the surface.
Cutting & Customization: Cut or customize according to requirements.

Molybdenum Wire Processing Method

Sintering
Forging
Rotary Forging
Rolling
Polishing

Molybdenum Wire Surface Finish

Depending on the intended applications, molybdenum wire has three main surface finishes as follows:

Black: The surface is “as swaged” or “as drawn”, retaining a coating of processing lubricants and oxides.
Cleaned: The surface is chemically cleaned to remove all lubricants and oxides.
Ground: The surface is centerless ground to remove all coating and to achieve precise dimensions control.

Molybdenum Wire Applications

Electronics Industry: Molybdenum wire is commonly used in the manufacture of electronic components such as electronic tubes, semiconductor devices, and vacuum diodes.
Optical Field: Molybdenum wire has good optical properties and thermal stability, and can also be used to manufacture optical components.
Aerospace: Molybdenum wire can be used to manufacture aerospace components.
EDM: Molybdenum wires are used as electrode wires in EDM machines, capable of cutting all kinds of steel and carbide.
Spary Wire: Molybdenum Wire undergoes special surface treatment and structural optimization, forming molybdenum spray wire. Molybdenum Spary Wire can be applied in plasma spraying, arc spraying, flame spraying, HVOF spraying, etc.

Molybdenum Wire Packaging

The Molybdenum Wire is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Molybdenum Properties

Item	Value
Atomic number	42
Crystal structure	Body centred cubic
Electronic structure	Kr 4d⁵ 5s¹
Valences shown	2, 3, 4, 5, 6
Atomic weight( amu )	95.94
Thermal neutron absorption cross-section( Barns )	2.65
Photo-electric work function( eV )	4.2
Natural isotope distribution( Mass No./% )	95/ 15.9
Natural isotope distribution( Mass No./% )	96/ 16.7
Natural isotope distribution( Mass No./% )	98/ 24.1
Natural isotope distribution( Mass No./% )	97/ 9.6
Natural isotope distribution( Mass No./% )	92/ 14.8
Natural isotope distribution( Mass No./% )	94/ 9.3
Natural isotope distribution( Mass No./% )	100/ 9.6
Atomic radius – Goldschmidt( nm )	0.14
Ionisation potential( No./eV )	2/ 16.15
Ionisation potential( No./eV )	5/ 61.2
Ionisation potential( No./eV )	Jun-68
Ionisation potential( No./eV )	1/ 7.10
Ionisation potential( No./eV )	3/ 27.2
Ionisation potential( No./eV )	4/ 46.4

Item	Value
Material condition / Temper	Annealed (Soft)
Material condition / Temper	Un-annealed (Hard)
Poisson’s ratio	0.293
Poisson’s ratio	0.293
Bulk modulus( GPa )	261.2
Bulk modulus( GPa )	261.2
Tensile modulus( GPa )	324.8
Tensile modulus( GPa )	324.8
Hardness – Vickers( kgf mm⁻² )	250
Hardness – Vickers( kgf mm⁻² )	200
Tensile strength( MPa )	485-550
Tensile strength( MPa )	620-690
Yield strength( MPa )	550
Yield strength( MPa )	415-450

Item	Value
Electrical resistivity( µOhmcm )	5.7@20@20°C
Superconductivity critical temperature( K )	0.915
Temperature coefficient( K⁻¹ )	0.00435@0-100°C
Thermal emf against Pt (cold 0C – hot 100C)( mV )	1.45

Item	Value
Boiling point( °C)	4612
Density( gcm⁻³ )	10.22@20°C

Item	Value
Melting point( °C )	2617
Latent heat of evaporation( J g⁻¹ )	6153
Latent heat of fusion( J g⁻¹ )	290
Specific heat( J K⁻¹ kg⁻¹ )	251@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	138@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	5.1@0-100°C

Download

SAFT DATA SHEET (SDS) – Molybdenum Metal

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To customize your molybdenum wire, please provide the following details:

Diameter (for the wire)
Length (Indicate the length you need)
Purity (Specify the purity of material required.)
Form (Straight, coiled, or spooled)
Surface Finish (polished, rough, oxide-coated, etc.)
Quantity of the products you need
Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of molybdenum and molybdenum alloy products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

DFARS (Defense Federal Acquisition Regulation Supplement) compliance is primarily concerned with the sourcing of materials for defense-related applications in the United States. According to DFARS, certain materials used in defense must be sourced from the United States or qualifying countries.

If you have specific molybdenum materials that are subject to DFARS, please let us know in advance and we will confirm.

At Heeger Materials Inc., we take this responsibility seriously. We adhere to all applicable laws and regulations, including Section 1502 of the Dodd-Frank Act. Our company operates with a strict code of ethics and is committed to only partnering with suppliers who share our dedication to responsible sourcing. We support the initiatives and programs aimed at promoting “conflict-free” supply chains and work diligently to ensure that our products meet these standards.

Heeger Materials Inc., established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of tantalum and tantalum alloys. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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