Molybdenum Foil

Designed for high-performance environments, Goodfellow's Molybdenum Foil delivers exceptional thermal stability, mechanical strength, and chemical resilience - ideal for aerospace, semiconductors, energy systems, and scientific instrumentation. Produced from 99.9% pure molybdenum with ultra-tight thickness ranges (0.001 mm to 25 mm), it integrates seamlessly into assemblies where heat resistance, dimensional accuracy, and long-term reliability are critical. We offer lengths and widths up to 1000 mm, with optional polishing on both sides to ensure surface uniformity and precision. Molybdenum’s extremely high melting point and low thermal expansion enable consistent performance under intense heat, while its high tensile strength ensures structural stability even in ultra-thin formats. Its electrical and thermal conductivity make it ideal for heat spreaders, vacuum electronics, and semiconductor tooling. Resistant to corrosion and oxidation in vacuum and inert gas environments, molybdenum foil excels in high-temperature furnaces, thin-film deposition, and diagnostic imaging systems. These properties make our molybdenum foil the material of choice for heat shields, sputtering targets, power electronics, and advanced research applications.

Formula: Mo
Percentage Purity: 99.9%
Temper: Annealed
Thickness: 0.03mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7439-98-7
UOM Code: 181-580-06
Legacy Code: MO000240
Distributor Code: GF18158006

SKU: 1000069404

Product Code: MO00-FL-000240

Wishlist

Tolerances

Foil/Film/Sheet

Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%
Thickness	>0.05mm	±10%

Tolerances

Foil/Film/Sheet

Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%
Thickness	>0.05mm	±10%

Technical Data Sheet

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Safety Data Sheet

$296.00

each

No Minimum order Free technical support *Free delivery worldwide

Material Properties for Metals

Atomic Properties

Element	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 )	68
Ionisation potential( No./eV )	1/ 7.10
Ionisation potential( No./eV )	3/ 27.2
Ionisation potential( No./eV )	4/ 46.4

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
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

Electrical Properties

Element	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

Physical Properties

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

Thermal Properties

Element	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