Molybdenum Tube/Pipe

Standard: ASTM B387

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

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

Molybdenum Tube and Molybdenum Pipe are made of high-purity molybdenum material through powder metallurgy, molding, sintering, and forging, 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 TZM tubes or pipes for wide ranges of applications.

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Molybdenum Tube/Pipe Data Sheet

Reference:	HMMO1083
Dimensions:	Outer Diameter: 3-500 mm Wall Thickness: 0.2-30 mm Length: 200-6000 mm
Shapes:	Cylinder, Square, or Rectangle (according to the cross-section)
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 Tube/Pipe

Molybdenum Tubes and Pipes are available in seamless and welded forms, excelling in operating environments up to 2000 ℃. They possess excellent thermal conductivity, low thermal expansion, and corrosion resistance. They are commonly applied to produce high-temperature furnace heating components. HM can supply high-precision molybdenum and molybdenum alloy tubes and pipes with tight tolerances and various specifications. The customized solutions are available according to specific requirements.

Molybdenum Tube Specifications

Outer Diameter (mm)		Wall Thickness (mm)		Length (mm)
Size	Tolerance	Size	Tolerance	Size	Tolerance
<100	±1.0	<1	±0.1	<100~150	±2.0
100~200	±2.0	1~3	±0.25	150~350	±3.0
200~300	±3.0	3~10	±0.5	350~650	±4.0
300~400	±5.0	10~20	±1.0	650 ~ 2000	±5.0
>400	±7.0	20 ~ 30 max	±1.0	2000 ~ 6000 max	±5.0

Molybdenum Tube Available Stock Dimensions

.125″ OD x .015″ wall x R/L	.500″ OD x .030″ wall x R/L
.187″ OD x .020″ wall x R/L	.625″ OD x .050″ wall x R/L
..187″ OD x .020″ wall x R/L	.750″ OD x .060″ wall x R/L
.312″ OD x .020″ wall x R/L	.875″ OD x .040″ wall x R/L
.375″ OD x .025″ wall x R/L	1.0″ OD x .050″ wall x R/L

Molybdenum Tube/Pipe 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 Tube/Pipe Processing Method

Sintering
Forging
Rotary Forging
Rolling
Polishing

Molybdenum Tube/Pipe Surface Finish

Depending on the intended applications, molybdenum tubes and pipes 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 Tube VS TZM Alloy Tube

Pure molybdenum tubes and TZM molybdenum alloy tubes have significant differences in composition and properties. TZM alloy is a molybdenum alloy with titanium (Ti) and zirconium (Zr) added to enhance its high-temperature strength and creep resistance. TZM alloy tubes exhibit better mechanical properties and durability in high-temperature environments.

Materials	Density/g·cm-3	Melting point/℃	Boiling point/℃
TZM Alloy (Ti0.5/Zr0.1)	10.22	2617	4612
Mo	10.29	2610	5560

Molybdenum Tube/Pipe Applications

Aerospace and Defense: Because of its ability to withstand extreme environments and high temperatures, the molybdenum tube is commonly used to manufacture aircraft and spacecraft components.
Medical Equipment: Molybdenum tubes are also used in X-ray tubes and other medical imaging equipment.
High-Temperature Furnaces and Heating Elements: Molybdenum tubes are used as heating elements in high-temperature furnaces and heat-treatment equipment.
Electronics and Semiconductor Industry: Molybdenum tubes are used in the semiconductor industry, especially in chemical vapor deposition (CVD) and physical vapor deposition (PVD) processes.
Glass and Ceramic Production: Molybdenum tubes are used as electrodes in glass melting furnaces.

Molybdenum Tube/Pipe Packaging

The Molybdenum Tube and Molybdenum Pipe 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 tube or molybdenum pipe, please provide the following details:

Dimensions (Outer Diameter, Inner Diameter, Wall Thickness, Length)
Tolerance (Indicate the acceptable tolerance for the dimensions)
Surface Finish (polished, rough, etc.)
Purity of the material you need
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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Other Tube/Pipe Products

Heeger Metal provides high-quality custom tube and pipe products in a variety of materials including stainless steel, titanium, nickel alloys, and more. Our precision tubes and pipes are available in various sizes and forms, ideal for applications in industries such as aerospace, automotive, energy, and chemical processing. Whether you require seamless tubes, welded pipes, or custom-cut solutions, we deliver products designed to meet your exact specifications with superior strength, corrosion resistance, and long-lasting performance.

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.