- Materials
- Forms
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
Academia Aerospace & Aeronautical Automotive Chemical Manufacturing Electronics and Bioelectronics Fuel Cells & Hydrogen Life Science and Biomaterials Storage & Batteries Vacuum Technology Mining and Metals Nanomaterials Nuclear Oil & Gas Optics Packaging Research & Labs Space Technology Medical Devices
-
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Toggle Nav
Formula: Mo
Form: Washer
Material: Molybdenum
CAS Number: 7439-98-7
Commodity: Metals
Standard:
ISO 7089:2000
Molybdenum Washer from the Goodfellow range is available in 32 variations. These washers are made of molybdenum, a refractory metal valued for its high melting point, strength at high temperatures, and resistance to corrosion. With their durability and heat resistance, Molybdenum Washer find use in demanding applications like furnace fixtures, rocket nozzles, and glass manufacturing equipment. The Goodfellow range of Molybdenum Washer provides versatile options for securing and distributing load in high-temperature settings.
Tolerances
Washer
| Size | See item |
|---|
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 |
Other Customers Purchased
-
Molybdenum Powder Formula: Mo
Percentage Purity: 99.9%
Mean Particle Size (FSSS): <5µm
Weight: 100g
CAS Number: 7439-98-7
UOM Code: 002-867-58
eachStarting at $208.23
Discounts applied for volume purchases -
Molybdenum Rod Formula: Mo
Percentage Purity: 99.9%
Diameter: 40mm
Length: 25mm
Production Method: Centreless Ground
CAS Number: 7439-98-7
UOM Code: 008-632-32
eachStarting at $180.63
Discounts applied for volume purchases -
Molybdenum Spooled Wire Formula: Mo
Percentage Purity: 99.95%
Product Shape: Spooled
Diameter: 1mm
Length: 5m
Temper: Annealed
CAS Number: 7439-98-7
UOM Code: 012-065-26
eachStarting at $199.11
Discounts applied for volume purchases -
Molybdenum Pellets Formula: Mo
Percentage Purity: 99.9%
Maximum Lump Size: 10mm
Weight: 50g
CAS Number: 7439-98-7
UOM Code: 000-962-74
eachStarting at $175.50
Discounts applied for volume purchases -
Gold Plated Molybdenum Spooled Wire Formula: Mo
Percentage Purity: 99.95%
Product Shape: Spooled
Diameter: 0.05mm
Length: 200m
Coating: Gold Plated coated
CAS Number: 7439-98-7
UOM Code: 004-480-73
eachStarting at $317.11
Discounts applied for volume purchases -
Molybdenum Foil Formula: Mo
Percentage Purity: 99.9%
Temper: As Rolled
Thickness: 0.02mm
Length 1: 140mm
Length 2: 140mm
CAS Number: 7439-98-7
UOM Code: 081-214-84
eachStarting at $121.14
Discounts applied for volume purchases
