Alumina Washer
Formula: Al₂O₃
Thickness: 1.2mm
Outside Diameter: 11.79
Inside Diameter: 4.790
Quantity: 10 Pcs
Standard: ANSI B18.22M-1981, R1990 (Reg)
Size: M4 (ANSI)
CAS Number: 1344-28-1
UOM Code: 583-436-76
Legacy Code: AL60WA04
Distributor Code: GF58343676
SKU: 1000024759
Product Code: AL60-WA-000104
Thickness: 1.2mm
Outside Diameter: 11.79
Inside Diameter: 4.790
Quantity: 10 Pcs
Standard: ANSI B18.22M-1981, R1990 (Reg)
Size: M4 (ANSI)
CAS Number: 1344-28-1
UOM Code: 583-436-76
Legacy Code: AL60WA04
Distributor Code: GF58343676
SKU: 1000024759
Product Code: AL60-WA-000104
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alkalis | Good |
| Halogens | Good |
| Metals | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant | 9-10.1 |
| Dielectric strength( kV mm⁻¹ ) | Oct-35 |
| Volume resistivity( Ohmcm ) | >10¹⁴@25 |
Physical Properties
| Element | Value |
|---|---|
| Apparent porosity( % ) | 0 |
| Water absorption - saturation( % ) | 0 |
| Density( gcm⁻³ ) | 3.9 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2100 |
| Upper continuous use temperature( C ) | 1700 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 850-900@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 26-35@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 8@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 300-400 |
| Hardness - Knoop( kgf mm⁻² ) | 2100 |
| Hardness - Vickers( kgf mm⁻² ) | 1500-1650 |
| Shear strength( MPa ) | 330 |
| Tensile strength( MPa ) | 260-300 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 2200-2600 |