Descrizione
Product overview
M100 is a magnesium oxide powder developed for the high-temperature annealing of grain-oriented silicon steel. It is produced by controlled calcination of high-purity magnesium hydroxide and is intended for separator-coating systems involved in magnesium silicate insulation-film formation.
Applicazioni
- Annealing separator coatings for grain-oriented silicon steel.
- Insulation modification of non-oriented silicon steel.
- Material development for transformer and instrument-transformer cores.
Published reference data
| Proprietà | Valore |
|---|---|
| MgO | ≥99.3 % |
| CaO | ≤0.005 % |
| Fe₂O₃ | ≤0.0028 % |
| Chloride (Cl⁻) | <0.005 % |
| Sulfate (SO₄²⁻) | <0.01 % |
| Loss on ignition | ≤0.01 % |
| Bianchezza | ≥99.7 |
| Tapped density | 0.55–0.65 g/cm³ |
| Specific surface area | 4.36 m²/g — Published reference value; tolerance not stated |
| Median particle size, d50 | 2.96 μm — Published reference value; tolerance not stated |
Reference information is provided for grade screening. Confirm the current technical data sheet and batch certificate of analysis before setting purchase or production specifications.
Formulation and qualification notes
Assess slurry dispersion, suspension stability and coating uniformity together with the steel surface condition and annealing cycle. Final insulation and magnetic properties depend on the complete coating and manufacturing process. The single values for surface area and particle size below are published reference figures, not stated tolerances.
Request a quotation or technical information
For grade selection or a quotation, share the steel type, coating process, annealing conditions and required material specifications. Request the current TDS, SDS and batch COA for qualification.
For pricing, sample availability and current documentation, use the inquiry form below or email info@longchangchemical.com.

