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Tin Disk
Available Configurations
Properties common to all products in this list
| Purity | Thickness | Diameter | Temper ⓘ | Support |
|---|---|---|---|---|
| 98.8% (1N88) and 99.999% (5N) | 0.0025mm (foil) to 3mm (sheet) | 4mm to 50.8mm | As Rolled | Temporary acrylic on 0.0025mm thick foils |
Need custom configurations? Please contact us.
Key Features
Tin Disc at 98.8–99.999% purity is a precision-cut circular tin component combining high purity with exceptional malleability, chemical inertness, and a low melting point of 231.9 °C in a defined geometry suited to sealing, electrochemical, and research applications:
Exceptional Malleability for Conformable Gaskets & Vacuum Seals
Tin's exceptional malleability allows Tin Disc to conform readily to mating surfaces under modest compressive loads — making it well suited for use as a conformable metallic gasket, vacuum seal, or soft metallic shim where leak-tight contact is required without high clamping forces and where the circular geometry provides a standard sealing footprint for precision instrument and vacuum system flanges.
Non-Toxicity & Chemical Stability in Broad Environments
Tin's non-toxicity and chemical stability across a broad range of environments support the use of Tin Disc in food-contact, pharmaceutical, and analytical applications where metallic test coupons, reference substrates, and sealing elements must not introduce contamination into the process stream or measurement environment.
Purity Range 1N88 to 5N for Contamination-Sensitive Selection
Purity options from 1N88 (98.8%) to 5N (99.999%) allow grade selection matched to contamination sensitivity — lower grades suit industrial gasket and sealing applications; 5N grade is selected for analytical instrument substrates, electronic reference specimens, and research applications where trace metallic impurities in the disc material would compromise surface analysis or measurement accuracy.
Elemental Superconductor Below 3.722 K
Tin becomes superconducting below 3.722 K, making high-purity Tin Disc a relevant specimen form for low-temperature physics experiments, superconductivity reference studies, and comparative investigations of elemental superconductor behavior where a well-characterized, purity-traceable circular specimen geometry is required.
Purity-Traceable Platform for Surface Analysis & Materials Characterization
Tin Disc provides a chemically inert, purity-traceable circular substrate for surface analysis, corrosion studies, solder wettability reference measurements, and materials characterization in research — where the precision circular geometry and defined purity allow systematic and reproducible surface investigations across grades from industrial to 5N high purity.
Industrial Applications
Tin Disc is used across vacuum and instrument sealing, electrochemical research, low-temperature physics, analytical instrumentation, and corrosion science wherever a precision circular tin component with controlled purity is required:
- ✦ Conformable Metallic Gaskets & Vacuum Seals
- The primary engineering application for Tin Disc: conformable metallic gaskets and vacuum seals in precision instruments, laboratory vacuum systems, and analytical equipment, where tin's exceptional malleability allows the disc to deform and conform to mating flange surfaces under modest clamping loads — providing leak-tight sealing without the high bolt forces required for harder metallic gasket materials.
- ✦ Electrochemical Test Coupons & Corrosion Study Substrates
- Applied as electrochemical test coupons and corrosion study substrates, where the precision circular geometry provides a defined, standardized tin surface for systematic electrochemical characterization of corrosion potential, passivation behavior, and oxide film formation — with purity grade selection allowing impurity effects on corrosion behavior to be investigated across the 1N88 to 5N range.
- ✦ Superconductor Research Specimens & Low-Temperature Physics
- Used as superconductor research specimens in low-temperature physics, where tin's well-characterized superconducting transition at 3.722 K provides a reproducible elemental superconductor disc for critical temperature measurements, magnetic field penetration studies, and comparative superconductivity investigations — with the precision circular geometry and purity traceability ensuring specimen-to-specimen reproducibility across experimental programs.
- ✦ Solder Wettability Reference Substrates
- Used as solder wettability reference substrates in electronics manufacturing quality control and soldering process development, where the well-defined tin disc surface provides a reference wettability standard for evaluating solder paste formulations, flux effectiveness, and surface preparation protocols against a controlled metallic substrate of known purity and surface condition.
- ✦ Surface Analysis & Materials Characterization Research
- Provides a chemically inert, purity-traceable platform for surface analysis and materials characterization in research, where the precision circular disc geometry and availability across purity grades from 1N88 to 5N support systematic XPS, Auger, and SIMS surface analysis studies of tin oxide formation, surface chemistry, and impurity segregation under controlled experimental conditions.
Material Properties
| Element | Value |
|---|---|
| Atomic number | 50 |
| Crystal structure | Tetragonal |
| Electronic structure | Kr 4d¹⁰ 5s² 5p² |
| Valences shown | 2,4 |
| Atomic weight( amu ) | 118.69 |
| Thermal neutron absorption cross-section( Barns ) | 0.63 |
| Photo-electric work function( eV ) | 4.3 |
| Natural isotope distribution( Mass No./% ) | 122/ 4.6 |
| Natural isotope distribution( Mass No./% ) | 124/ 5.6 |
| Natural isotope distribution( Mass No./% ) | 114/ 0.7 |
| Natural isotope distribution( Mass No./% ) | 120/ 32.4 |
| Natural isotope distribution( Mass No./% ) | 118/ 24.3 |
| Natural isotope distribution( Mass No./% ) | 112/ 1.0 |
| Natural isotope distribution( Mass No./% ) | 116/ 14.7 |
| Natural isotope distribution( Mass No./% ) | 115/ 0.4 |
| Natural isotope distribution( Mass No./% ) | 117/ 7.7 |
| Natural isotope distribution( Mass No./% ) | 119/ 8.6 |
| Atomic radius - Goldschmidt( nm ) | 0.158 |
| Ionisation potential( No./eV ) | 2/ 14.63 |
| Ionisation potential( No./eV ) | 5/ 72.3 |
| Ionisation potential( No./eV ) | 3/ 30.5 |
| Ionisation potential( No./eV ) | 4/ 40.7 |
| Ionisation potential( No./eV ) | 1/ 7.34 |
| Element | Value |
|---|---|
| Hardness - Mohs | 1.5-1.8 |
| Material condition | Polycrystalline |
| Poisson's ratio | 0.357 |
| Bulk modulus( GPa ) | 58.2 |
| Tensile modulus( GPa ) | 49.9 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 12.6@20°C |
| Superconductivity critical temperature( K ) | 3.722 |
| Temperature coefficient( K⁻¹ ) | 0.0046@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 0.42 |
| Element | Value |
|---|---|
| Boiling point( C ) | 2270 |
| Density( gcm⁻³ ) | 7.28@20°C |
| Element | Value |
|---|---|
| Melting point( C ) | 231.9 |
| Latent heat of evaporation( J g⁻¹ ) | 2497 |
| Latent heat of fusion( J g⁻¹ ) | 59.6 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 213@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 66.8@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 23.5@0-100°C |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Diameter | ±0.5mm |