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Titanium ferrosilicide is a new material developed by NTPF Etalon Ltd engineers. It is produced by self-propagating high-temperature synthesis (SHS) technology. Titanium ferrosilicide is used as master alloy for high-quality steels instead of ferrotitanium. The analogue of this material is ferrosilicotitanium, but titanium content is higher (as 70 % ferrotitanium FeTi70 GOST 4761), and impurities content is significantly lower (oxygen, nitrogen, hydrogen as well as nonferrous metals) (table).
Titanium ferrosilicide is produced in special SHS-reactors under inert atmosphere and high temperature (about 2100 oC). End product has 3,5-4,5 g/cm3 density and composite structure based on titanium silicides and intermetallics. This allows to increase titanium assimilation by steel in 1,5-2,5 times compared with ferrotitanium.
Chemical composition of titanium ferrosilicide
Grade |
Ti |
Al |
Si |
Cu |
V |
Mo |
Sn |
Cr |
H |
N |
O |
C |
S |
P |
max |
FST 70 |
65-75 |
9-14 |
14-22 |
0,01 |
0,1 |
0,01 |
0,01 |
0,05 |
0,01 |
0,1 |
0,2 |
0,2 |
0,01 |
0,02 |
Material is supplied in lump form with following fractions: 5-20 mm, 20-80 mm, 50-200 mm and others. It is possible to produce cored wire filled with titanium ferrosilicide with following characteristics:
Diameter, mm |
The fill factor, % |
The location axis of the bay |
The shell material |
12-15 |
66,7 |
Vertical |
08Al steel |
Other alloying materials: