PRODUCTS

Cast and pig iron

Ferroalloys

Graphite and graphite electrodes

Modifiers for steel and cast iron

• Ferrosilicobarium FeSiBa4 (Inoculant)
• Ferrosiliconmagnesium FeSiMg7
• Ferrosiliconmagnesium FeSiMg9

Non-ferrous metals

Ferrosilicon magnesium FeSiMg7 is used for in-mold modification in the production of high-strength cast iron castings.

Almost all high-strength cast irons are produced with the addition of magnesium, which promotes the formation of graphite of the required structure. Magnesium is a reactive, rapidly evaporating metal, with limited solubility in cast iron, whose boiling point is much lower than that of molten cast iron. Thus, metallic magnesium is practically impossible to use when modifying the melt.

The use of magnesium is simplified if it is included in an inexpensive material that is suitable for cast iron and which forms compounds with magnesium, thereby reducing its vapor pressure and, as a consequence, the chemical reactivity of this element. Silicon and high-silicon alloys - such as 45% ferrosilicon - meet all of the above requirements.

Grades and chemical composition of ferrosilicon with magnesium
Brand	Mass fraction of elements, %
	Mg	Ca	REM	Si	Al	Fe
FeSiMg7	6.5 - 8.5	0.2 - 1.0	0.3 - 1.0	45 - 55	=<1,2	rest

At the request of consumers, modifiers are produced in pieces or crushed according to the size classes indicated in the table.

Size classes
Size class	Particle size, mm	Mass fraction of product in the batch, % no more
		Nadreshetny	under-slat
1	1-20	5	3
2	10-20	5	3
3	1-10	8	8
4	5-10	8	8
5	1-5	8	8
6	1 or less	10	-
7	0.5-4	8	8
8	0.5 or less	10	-

Metallurgical company "Mitra" LLC offers from stock Ferrosiliconmagnesium FeSiMg7 at a negotiated price.