Tungsten Spooled Wire

Designed for aggressive environments, Goodfellow's Tungsten Spooled Wire delivers unmatched thermal resilience, mechanical strength, and dimensional stability - ideal for aerospace, electronics, scientific instrumentation, and high-temperature manufacturing. Produced from 99.95% pure tungsten with diameters ranging from 0.004 mm to 1.2 mm and lengths up to 12,500 m, it integrates seamlessly into systems requiring precision and durability. Tungsten’s high melting point ensures structural stability under intense heat, while its density and tensile strength provide durability in compact, high-stress components. Its low thermal expansion and excellent conductivity make it ideal for electron beam sources, thermionic emitters, and RF/microwave vacuum devices. Chemically inert and highly wear-resistant, it performs reliably in corrosive environments and in demanding mechanical applications. These combined properties make our tungsten wire the preferred choice for heating elements, welding electrodes, imaging systems, and advanced aerospace assemblies.

Formula: W
Percentage Purity: 99.95%
Product Shape: Spooled
Diameter: 1mm
Length: 10m
Type: Clean
CAS Number: 7440-33-7
UOM Code: 037-823-47
Legacy Code: W 005170
Distributor Code: GF03782347

SKU: 1000005066

Product Code: W-00-WR-000170

Wishlist

Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

Technical Data Sheet

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Safety Data Sheet

$492.00

each

No Minimum order Free technical support *Free delivery worldwide

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	74
Crystal structure	Body centred cubic
Electronic structure	Xe 4f¹⁴ 5d⁴ 6s²
Valences shown	2,3,4,5,6
Atomic weight( amu )	183.85
Thermal neutron absorption cross-section( Barns )	18.5
Photo-electric work function( eV )	4.55
Natural isotope distribution( Mass No./% )	183/ 14.3
Natural isotope distribution( Mass No./% )	182/ 26.3
Natural isotope distribution( Mass No./% )	186/ 28.6
Natural isotope distribution( Mass No./% )	180/ 0.1
Natural isotope distribution( Mass No./% )	184/ 30.7
Atomic radius - Goldschmidt( nm )	0.141
Ionisation potential( No./eV )	1/ 7.98
Ionisation potential( No./eV )	2/ 17.7

Mechanical Properties

Element	Value
Material condition	Soft
Material condition	Hard
Poisson's ratio	0.28
Poisson's ratio	0.28
Bulk modulus( GPa )	311
Bulk modulus( GPa )	311
Tensile modulus( GPa )	411
Tensile modulus( GPa )	411
Hardness - Vickers( kgf mm⁻² )	360
Hardness - Vickers( kgf mm⁻² )	500
Tensile strength( MPa )	550-620
Tensile strength( MPa )	1920
Yield strength( MPa )	550

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	5.4@20@20°C
Superconductivity critical temperature( K )	0.0154
Temperature coefficient( K⁻¹ )	0.0048@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	1.12

Physical Properties

Element	Value
Boiling point( C )	5660
Density( gcm⁻³ )	19.3@20°C

Thermal Properties

Element	Value
Melting point( C )	3410
Latent heat of evaporation( J g⁻¹ )	4009
Latent heat of fusion( J g⁻¹ )	192
Specific heat( J K⁻¹ kg⁻¹ )	133@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	173@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	4.5@0-100°C