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Formula: Al₂O₃
Form: Bar
Material: Alumina
CAS Number: 1344-28-1
Commodity: Ceramics
Side Length:
20mm
Side Length (Of Longer Side):
25mm
Length:
736mm
Goodfellow offers a range of alumina bars that are highly useful in engineering. Alumina, or aluminum oxide, is an extremely hard ceramic material with excellent wear and corrosion resistance. These alumina bars can withstand high temperatures and have good electrical insulation properties. With multiple sizes available, Goodfellow's alumina bars have applications in electrical insulators, wear parts and high temperature furnace components. The unique properties of these alumina ceramic bars make them ideal for demanding engineering needs.
Tolerances
Bar
| Side Length | =<10mm | ±10% |
|---|---|---|
| Side Length | >10mm | ±1mm |
| Side Length (Of Longer Side) | >10mm | ±1mm |
| Side Length (Of Longer Side) | =<10mm | ±10% |
| Length | <100mm | ±1mm |
| Length | >=100mm | +5% / -1% |
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 |
Other Customers Purchased
-
Supalox H4011G Alumina Powder Grade: Supalox H4011G
Formula: Al₂O₃
Percentage Purity: 99.99%
Particle Size D10: 1µmµm
Particle Size D50: 3µmµm
Particle Size D90: 6µmµm
Weight: 10000g
Phase: Gamma
Colour: White
CAS Number: 1344-28-1
UOM Code: 403-894-70
eachStarting at $155.95
Discounts applied for volume purchases -
Supalox N5003G Alumina Powder Grade: Supalox N5003G
Formula: Al₂O₃
Percentage Purity: 99.999%
Particle Size D10: 0.3µmµm
Particle Size D50: 0.45µmµm
Particle Size D90: 0.6µmµm
Weight: 10000g
Phase: Gamma
Colour: White
CAS Number: 1344-28-1
UOM Code: 166-247-28
eachStarting at $159.13
Discounts applied for volume purchases -
Supalox H5011 Alumina Powder Grade: Supalox H5011
Formula: Al₂O₃
Percentage Purity: 99.999%
Particle Size D10: 1µmµm
Particle Size D50: 3µmµm
Particle Size D90: 6µmµm
Weight: 10000g
Phase: Alpha
Colour: White
CAS Number: 1344-28-1
UOM Code: 982-932-51
eachStarting at $160.26
Discounts applied for volume purchases -
Supalox N5003 Alumina Powder Grade: Supalox N5003
Formula: Al₂O₃
Percentage Purity: 99.999%
Particle Size D10: 0.3µmµm
Particle Size D50: 0.45µmµm
Particle Size D90: 0.6µmµm
Weight: 10000g
Phase: Alpha
Colour: White
CAS Number: 1344-28-1
UOM Code: 175-103-97
eachStarting at $160.10
Discounts applied for volume purchases -
Supalox H5011G Alumina Powder Grade: Supalox H5011G
Formula: Al₂O₃
Percentage Purity: 99.999%
Particle Size D10: 1µmµm
Particle Size D50: 3µmµm
Particle Size D90: 6µmµm
Weight: 10000g
Phase: Gamma
Colour: White
CAS Number: 1344-28-1
UOM Code: 742-555-63
eachStarting at $158.80
Discounts applied for volume purchases -
Alumina Balls
Formula: Al₂O₃
Quantity: 10 Pcs
Type: Non-Precision Sphere
Sphericity: Nominal
CAS Number: 1344-28-1
UOM Code: 439-337-21eachStarting at $117.65
Discounts applied for volume purchases
