Magnesia powder

Magnesium oxide is both an excellent electrical insulator and a very good thermal conductor. These properties are appreciated in the thermal industry as a component of thermocouples and heating systems. Available in 90% to 99.6% purity, these powders can be applied by dry pressing or injection moulding. Our powder grades vary depending on:

  • Purity
  • Grain size and distribution

Applications

  • Manufacture of components for temperature measurement
  • Manufacture of thermocouple cables
  • Manufacture of heating and fire-resistant cables
  • Manufacture of heat cartridges

Technical data

Magnesium oxide MgO

Grade 94%

Grade 99%

Grade 99,6%

Product N°

171-0010

171-0020

171-0030

171-0040

171-0050

Grain Size (μm)

45-425

45-425

75-180

63-90

75-180

Standard purity

MgO

> 94.0%

> 99%

> 99%

> 99%

> 99.6%

Al2O3

< 1.2%

< 0.15%

< 0.15%

< 0.15%

< 0.10%

Fe2O3

< 0.22%

< 0.10%

< 0.10%

< 0.10%

< 0.08%

SiO2

< 4.0%

< 0.25%

< 0.25%

< 0.25%

< 0.08%

CaO

< 1.6%

< 0.5%

< 0.50%

< 0.60%

< 0.15%

B2O3

< 0.01%

< 0.03%

< 0.03%

< 0.03%

< 0.02%

Grain-Size-Distribution (µm)

< 45

7 %

0

0

< 20%

0

>45

0

0

<15%

0

<15%

> 106

0

0

<10%

< 5%

<10%

> 250

26 - 38 %

0

0

0

0

> 355

< 7 %

<5%

0

0

0

> 425

< 0.1%

0

0

0

0

Minimum order of 1kg