Product Description of Magnesium Calcium Iron Dry Ramming Mass

Magnesium calcium iron dry ramming material is a dry material made of magnesium calcium iron sand and magnesia sand with reasonable grade, which is mainly used for building steel making and ferroalloy electric furnaces.

Product Specification of Magnesium Calcium Iron Dry Ramming Mass

Элемент Индекс
MGT-1 MGT-2 MGT-3 MGT-4
MgO % ≥78 ≥81 ≥82 ≥85
CaO % 12~15 6~9 8~11 6~8
Fe2O3 % 4~5 5~9 3~5 4~5
SiO2 % ≤1.3 ≤1,5 ≤1.1 ≤1.3
Al2O3 % ≤0.6 ≤0.6 ≤0.6 ≤0.6
Grain size composition mm 0~6 0~6 0~6 0~6
Bonding Method Ceramic Bonded Ceramic Bonded Ceramic Bonded Ceramic Bonded
Fired Cold Crush Strength MPa 1300℃×3h ≥10 ≥10 ≥8 ≥10
1600℃×3h ≥30 ≥30 ≥30 ≥30
Permanent Linear Change% 1300℃×3h -0.2~-0.5 -0.2~-0.5 -0.2~-0.5 -0.2~-0.5
1600℃×3h -1.5~-2.5 -2.0~-3.0 -0.1~-0.2 -1.5~-2.5
Particle bulk density,g/cm3 ≥3.25 ≥3.25 ≥3.25 ≥3.25
Usage Electric steelmaking furnace Electric steelmaking furnace Electric steelmaking furnace Ferroalloy electric furnace


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