Chemical Components: before passivation magnesium content is more than 99.5% , and after passivation the content is about 75-94% .
Product Specification: 10-80 meshes (granule 2-0.18mm)
Product Shape: roundness or unequal roundness
Product Color: dark grey or silver white
Loose Density: 0.75-0.95g/cm3
Average Burning Point: 560℃-600℃
Fire Retardant Time: 1000℃-1100℃ not shorter than 10 seconds.
Passivation spherical magnesium powder is used for desulphuration and deoxidation in production of fine steel, bringing the sulfur element of fine steel to be less that 0.004%. As a dehydrant, it is not replaceable to improve fine steel quality, exploitation, In production of ductile cast iron. it can be a nodulizer in place of middle alloy among iron-silicon-magnesium.
For oil it can resume or accelerate the speed of the pressure drilling hole and oil well. Passivation spherical magnesium powder is an effective dehydrant and incendiary agent for chemical and war industries. Besides used as a magnesium alloy powder, it is also a kind of metallurgical materials.
* Chemical Components: before passivation magnesium content is more than 99.5%, and after that is about 75-94% .
* Product Specification: 10-80 meshes (granule 2-0.18mm)
* Product Shape: roundness or unequal roundness
* Product Color: dark grey or silver white
* Loose Density: 0.75-0.95g/cm3
* Average Burning Point: 560℃-600℃
* Fire Retardant Time: 1000℃-1100℃ not shorter than 10 seconds.
As the desulphuration agent for smelting steel and iron, passivation spherical magnesium powder has been widely used in developed countries. It is necessary for steel and iron enterprises to produce qualified and special type steel. The advantages of desulphuration are: less consumption, short time processing, fast reaction, little dropping of molten iron temperature. little sinter, good effect of desulphuration and deep desulphuration.
【Specifications】
|
Millimeter(mm) |
2- 0.21 |
0.85 - 0.18 |
0.99 - 0.21 |
0.85 - 0.21 |
0.85 - 0.30 |
|
Mesh |
10-65 |
20-80 |
16-65 |
20-65 |
20-50 |
|
Specific particle size proportion can produce according to requirements of clients |
|||||
【Granularity Standard】
|
Granule Dia.（mm) |
2—0.85 |
0.85—0.50 |
0.50—0.40 |
0.40—0.21 |
<0.21 |
|
Granularity Proportion (%) |
10—25 |
40—55 |
15—25 |
5—10 |
0—5 |
|
Chemical Components (%) |
Loose Density |
||
|
Before Passivation (Mg) |
After Passivation (Mg) |
H2O |
|
|
≧99.95 |
75—95 |
<0.3 |
>0.75 |
|
Burning Point |
560℃—600℃ |
|
Fire Retardant Time (s) |
≧15seconds |
