Molybdenum Rod/Bar

Standard: ASTM B387

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

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

Molybdenum Rod and Molybdenum Bar are high-performance materials formed by sintering molybdenum powder, 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 rods and bars for wide ranges of applications.

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Molybdenum Rod/Bar Data Sheet

Reference:	HMMO1078
Dimensions:	Diameter: 0.125 (inch)-4.0 (inch) Length: <10 feet
Standard:	ASTM B387
Material:	Pure Mo₃₆₁, MoTZM (Mo₃₆₄), Mo-Lanthanoxid (ML)
Purity:	99.95%-99.99%
Density:	9.8-10.2 g/cm³
Temper:	Annealed or Unannealed

Molybdenum Rod and Molybdenum Bar

Molybdenum Rods and Bars have a high melting point of up to 2617 ℃, allowing them to keep stability at high temperatures. They also possess excellent thermal conductivity, low thermal expansion, and corrosion resistance. They are commonly applied to produce high-temperature components. HM can supply high-precision molybdenum rods and bars with tight tolerances and various specifications. The customized solutions are available according to specific requirements.

Molybdenum Rod
Molybdenum Bar

Molybdenum Rod Specifications

Diameter (inch)	Length (inch)	Diameter Tolerance (inch)	Length Tolerance (inch)
0.08 – 0.40	<315	±0.005	+0.08, -0
0.40 – 0.80	<118	±0.010	+0.08, -0
0.80 – 4.00	<78	±0.015	+0.08″, -0
>4.00	<40	±0.025	+0.08, -0

Molybdenum Rod Available Stock Dimensions

.060″ diameter × r/l’s	.250″ diameter × r/l’s	1.010″ diameter × r/l’s	.062″ diameter × r/l’s	.3125″ diameter × r/l’s
1.125″ diameter × r/l’s	.070″ diameter × r/l’s	.375″ diameter × r/l’s	1.250″ diameter × r/l’s	.080″ diameter × r/l’s
.437″ diameter × r/l’s	1.500″ diameter × r/l’s	.100″ diameter × r/l’s	.510″ diameter × r/l’s	1.750″ diameter × r/l’s
.125″ diameter × r/l’s	.525″ diameter × r/l’s	2.000″ diameter × r/l’s	.132″ diameter × r/l’s	.625″ diameter × r/l’s
2.250″ diameter × r/l’s	.1875″ diameter × r/l’s	.760″ diameter × r/l’s	2.600″ diameter × r/l’s	.890″ diameter × r/l’s

Molybdenum Bar Specifications

Width (mm)	Thickness (mm)	Length (mm)	Length Tolerance (mm)
15	15	600	+1, -0
20	20	1000	+1, -0
45	45	1200	+2, -0
60	60	1500	+3, -0

Molybdenum Rod/Bar 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 Rod/Bar Processing Method

Sintering
Forging
Rotary Forging
Rolling
Polishing

Molybdenum Rod/Bar Surface Finish

Depending on the intended applications, molybdenum rods and bars have 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 Rod/Bar Applications

High-Temperature and Vacuum Furnaces: Due to their high melting point and good stability at high temperatures, molybdenum rods and bars are commonly used in high-temperature furnaces and vacuum furnaces as heating elements, electrodes, and radiation shielding components.
Semiconductor Industry: Molybdenum rods and bars are used as electrodes, contact materials, and substrates in manufacturing semiconductor devices.
Optical Coating: Molybdenum rods and bars are used as electrodes and cathodes in optical coating, for the deposition of thin films and etching processes.
Aerospace: Molybdenum rods and bars are used in the aerospace industry for producing high-temperature engine components, aero-engine nozzles, and other components.
Welding and Cutting: Molybdenum rods and bars are used in resistance welding, arc welding, and plasma cutting applications.
Chemical and Metallurgical: Molybdenum rods and bars are used in the chemical and metallurgical industries for reactors, catalysts, electrodes, and heating elements.

Molybdenum Rod/Bar Packaging

The Molybdenum Rod and Molybdenum Bar are 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 rod or molybdenum bar, please provide the following details:

Diameter x Length (for rods)
Length x Width x Height (for bars)
Quantity of the rods or bars 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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Other Rod/Bars Products

Heeger Metal supplies refractory metal and alloy rods/bars made from high-performance materials like tungsten, molybdenum, and tantalum. These rods offer excellent strength, high melting points, and resistance to wear and corrosion, making them ideal for aerospace, electronics, and high-temperature applications. Available in various sizes, they can be customized to meet specific needs.

Other Molybdenum Products

We offer a wide range of molybdenum and molybdenum alloy products, from powders to finished parts, with customization options available. Please refer to the list for our common products.