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Physical properties
Appearance: dark grey lump, not powder.
Particle size: 5 - 25mm
Features
-Strong nodularization
-Strong desulphurization
-Composition stability
-Smooth reaction
- Slow recession
- MgO less than 1.0%
Chemical compositions
Spec. | Chemical compositions (%) | ||||
RE | Mg | Ca | Si | Al | |
EM-4 | 1.8-2.2 | 5.1-5.6 | 1.6-2.0 | 43-48 | <1.0 |
EM-5 | 0.8-1.2 | 5.5-6.8 | 0.8-1.2 | 44-48 | <1.0 |
EM-6A | 1.0-1.5 | 5.5-6.5 | 0.8-1.5 | ≤44 | <1.0 |
Rare earth ferrosilicomagnesium