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As different as our mineral products may look, they always have two core properties – great hardness and high heat resistance. Thus, with our industrial minerals, you are well equipped to handle the most diverse grinding and blasting tasks and to manufacture refractory products.
In the search for new products, the focus is always on our customers. Together with our raw material partners, we are always developing new ideas and products to be on the cutting edge for you.
As the name suggests, semi-precious corundum is classified between normal and precious corundum due to its technical properties. It is less tough than normal corundum, but has a higher cutting ability.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 97,74% |
| TiO2 | 1,29% |
| SiO2 | 0,51% |
| Fe2O3 | 0,13% |
| MgO | 0,05% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA F mikro | |
| FEPA P makro | |
| FEPA P mikro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
The classic corundum with the highest purity is suitable for the highest demands. It is extremely abrasive and more brittle than normal corundum. Due to its high melting point, it is also suitable for the highest refractory demands.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 99,60% |
| SiO2 | 0,05% |
| Fe2O3 | 0,02% |
| CaO | 0,05% |
| Na2O + K2O | 0,22% |
| Available grain size | |
|---|---|
| FEPA F makro | |
| FEPA F mikro | |
| FEPA P makro | |
| FEPA P mikro | |
| Metric grit sizes | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Pink corundum is closely related to conventional corundum. The addition of chromium oxide in the melt gives this corundum its characteristic colour. Technically, it is characterised by an increased toughness compared to white corundum.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 99,10% |
| Fe2O3 | 0,04% |
| Na2O | 0,34% |
| Cr2O3 | 0,41% |
| Available grain size | |
|---|---|
| FEPA F makro | |
| FEPA P makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Zirconia corundum is the most resistant, toughest type of corundum available. Depending on the individual material type, this corundum has a zirconium oxide content of 25% or 40%. This means that the material is much harder to break than other types of corundum and therefore has a long service life. This makes it particularly interesting as a component of long-lasting tools.
| Zircon corundum 25% Chemical analysis (typical) |
|
|---|---|
| Al2O3 | >68,0% |
| ZrO2 | 20,0-28,0% |
| SiO2 | <0,60% |
| Fe2O3 | <0,50% |
| TiO2 | <0,50% |
| Zircon corundum 40% Chemical analysis (typical) |
|
|---|---|
| Al2O3 | >55,0% |
| ZrO2 | 38,0-42,0% |
| SiO2 | <0,40% |
| Fe2O3 | <0,30% |
| TiO2 | <2,0% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA P makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
With this high-tech corundum, the combination of great hardness and very high toughness meets special demands on the abrasiveness of your tool. In resin bonded grinding tools, this corundum is very often the most powerful component.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 99,20% |
| Na2O | max. 0,39% |
| TiO2 | max. 0,58% |
| SiO2 | max 0,49% |
| Fe2O3 | max. 0,2% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Black silicon carbide is characterised by its great hardness. Due to its sharp edges and optimal refractory properties, the material is optimally suited for abrasive or refractory applications.
| Chemical analysis (typical) | |
|---|---|
| SiC | 98,50% |
| Fe2O3 | 0,24% |
| C frei | 0,20% |
| Mag. fraktion | 0,10% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA F mikro | |
| FEPA P makro | |
| FEPA P mikro | |
| Metric grit sizes | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Glass beads are usually made from clean flat glass. Melting by means of a high-temperature flame brings about the spherical formation. Due to their round shape, they are often used for processing surfaces (shot peening). There is no danger of silicosis during use.
| Chemical analysis (typical) | |
|---|---|
| SiO2 | min. 65,00% |
| Na2O | min. 14,00% |
| CaO | min. 8,00% |
| Fe2O3 | max. 0,15% |
| AI2O3 | 0,5 – 2,0% |
| MgO | min. 2,50% |
| other | max. 2,00% |
| Available grain sizes |
|---|
| Metric grit sizes |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
In addition to the typical refractory products normal corundum, high-grade corundum and SiC black, we can offer you other selected refractory products.
These include, among others:
- Calcined bauxite
- Fused magnesite
- Enamel spinel
- Mullite
Talk to us! We will be happy to advise you on our different types of material.
Normal corundum
Product info
Due to its sharp edges and great hardness, normal corundum is characterised by a high abrasive effect. Due to a relatively high proportion of TiO2, normal corundum is tougher and less brittle than most types of corundum.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 93,5 – 95% |
| TiO2 | 2,5 – 3,2% |
| SiO2 | 0,5 – 0,8% |
| Fe2O3 | 0,4% |
| CaO + MgO | 0,4 – 0,8% |
| Available grain sizes |
|---|
| FEPA F makro |
| FEPA F mikro |
| FEPA P makro |
| FEPA P mikro |
| Metric grit sizes |
| Other grit sizes on request |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Semi-precious corundum
Product info
As the name suggests, semi-precious corundum is classified between normal and precious corundum due to its technical properties. It is less tough than normal corundum, but has a higher cutting ability.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 97,74% |
| TiO2 | 1,29% |
| SiO2 | 0,51% |
| Fe2O3 | 0,13% |
| MgO | 0,05% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA F mikro | |
| FEPA P makro | |
| FEPA P mikro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
High-grade corundum
Product info
The classic corundum with the highest purity is suitable for the highest demands. It is extremely abrasive and more brittle than normal corundum. Due to its high melting point, it is also suitable for the highest refractory demands.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 99,60% |
| SiO2 | 0,05% |
| Fe2O3 | 0,02% |
| CaO | 0,05% |
| Na2O + K2O | 0,22% |
| Available grain size | |
|---|---|
| FEPA F makro | |
| FEPA F mikro | |
| FEPA P makro | |
| FEPA P mikro | |
| Metric grit sizes | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Pink corundum
Product info
Pink corundum is closely related to conventional corundum. The addition of chromium oxide in the melt gives this corundum its characteristic colour. Technically, it is characterised by an increased toughness compared to white corundum.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 99,10% |
| Fe2O3 | 0,04% |
| Na2O | 0,34% |
| Cr2O3 | 0,41% |
| Available grain size | |
|---|---|
| FEPA F makro | |
| FEPA P makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Ruby corundum
Product info
Compared to pink corundum, ruby corundum has an even higher concentration of chromium oxide, which colours the material ruby red. Due to its significantly greater toughness, it meets the highest demands.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 97,23% |
| Fe2O3 | 0,08% |
| Cr2O3 | 2,19% |
| Na2O | 0,34% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA P makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types.
Zircon corundum
Product info
Zirconia corundum is the most resistant, toughest type of corundum available. Depending on the individual material type, this corundum has a zirconium oxide content of 25% or 40%. This means that the material is much harder to break than other types of corundum and therefore has a long service life. This makes it particularly interesting as a component of long-lasting tools.
| Zircon corundum 25% Chemical analysis (typical) |
|
|---|---|
| Al2O3 | >68,0% |
| ZrO2 | 20,0-28,0% |
| SiO2 | <0,60% |
| Fe2O3 | <0,50% |
| TiO2 | <0,50% |
| Zircon corundum 40% Chemical analysis (typical) |
|
|---|---|
| Al2O3 | >55,0% |
| ZrO2 | 38,0-42,0% |
| SiO2 | <0,40% |
| Fe2O3 | <0,30% |
| TiO2 | <2,0% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA P makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Monocrystal corundum
Product info
With this high-tech corundum, the combination of great hardness and very high toughness meets special demands on the abrasiveness of your tool. In resin bonded grinding tools, this corundum is very often the most powerful component.
| Chemical analysis (typical) | |
|---|---|
| Al2O3 | 99,20% |
| Na2O | max. 0,39% |
| TiO2 | max. 0,58% |
| SiO2 | max 0,49% |
| Fe2O3 | max. 0,2% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Silicon carbide black
Product info
Black silicon carbide is characterised by its great hardness. Due to its sharp edges and optimal refractory properties, the material is optimally suited for abrasive or refractory applications.
| Chemical analysis (typical) | |
|---|---|
| SiC | 98,50% |
| Fe2O3 | 0,24% |
| C frei | 0,20% |
| Mag. fraktion | 0,10% |
| Available grain sizes | |
|---|---|
| FEPA F makro | |
| FEPA F mikro | |
| FEPA P makro | |
| FEPA P mikro | |
| Metric grit sizes | |
| Other grit sizes on request | |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Silicon carbide green
Product info
Green silicon carbide is even more cutting-friendly than black silicon carbide. The extremely sharp-edged and pointed material is particularly suitable for abrasive applications where a particularly aggressive material removal is desired.
| Chemical analysis (typical) | |
|---|---|
| SiC | min. 99% |
| Fe2O3 | max. 0,4% |
| C frei | max. 0,2% |
| Available grain sizes |
|---|
| FEPA F makro |
| FEPA F mikro |
| Other grit sizes on request |
We will be happy to send you our technical data sheets on request and advise you on our various material types!
Glass beads
Product info
Glass beads are usually made from clean flat glass. Melting by means of a high-temperature flame brings about the spherical formation. Due to their round shape, they are often used for processing surfaces (shot peening). There is no danger of silicosis during use.
| Chemical analysis (typical) | |
|---|---|
| SiO2 | min. 65,00% |
| Na2O | min. 14,00% |
| CaO | min. 8,00% |
| Fe2O3 | max. 0,15% |
| AI2O3 | 0,5 – 2,0% |
| MgO | min. 2,50% |
| other | max. 2,00% |
| Available grain sizes |
|---|
| Metric grit sizesGerne senden wir Ihnen auf Anfrage unsere technischen Datenblätter und beraten Sie zu unseren verschiedenen Materialtypen! |
Refractory products
Product info
In addition to the typical refractory products normal corundum, high-grade corundum and SiC black, we can offer you other selected refractory products.
These include, among others:
- Calcined bauxite
- Fused magnesite
- Enamel spinel
- Mullite
Talk to us! We will be happy to advise you on our different types of material.
IMEXCO Minerals GmbH
Interpark16
D-76877 Offenbach/Pfalz
Tel: +49 (0) 6348 / 9838-60
Fax: +49 (0) 6348 / 9838-90
E-Mail: imexco@hengegroup.com