FeSi 72%&75% With Chinese Origin Export

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Ferro Silicon 72% & 75%.It is used extensively in the steel-making, casting non-ferrous metals and other industrial production.I

1, Features:
The appearance of Ferro Silicon is the grey lumpish solid. It has very strong stabilities and does not place any chemical reaction in the dry air.

2, Application:
It is used extensively in the steel-making, casting non-ferrous metals and other industrial production.It is the good deoxidizer and most steel kind use the Ferro Silicon for deoxidization;

In steel smelting, it is used to sedimentary accretion and expanding deoxidizing.It is used to prove the strength, hardness and elasticity of steel greatly in steel casting.


Chemicals    Composition(%)








FeSi 75%

FeSi 75%

FeSi 72%
















FeSi 70%






Lump size

10-50 mm, 50-100 mm,10-100 mm,   50-150mm: 90%min, or at  customer’s option;


In jumbo bag about 1MT/bag


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Q:Carbide grades, properties and applicable ranges
(3) tungsten tantalum cobalt (WC+TaC+Co) cemented carbide (YA);The addition of TaC (NbC) on the basis of YG cemented carbide improves the hardness and strength, thermal shock resistance and wear resistance at room temperature, high temperature, and can be used to process Cast Iron and stainless steel
Q:What is the tungsten alloy blade, what is the difference with the hard alloy blade? What is it for?
Tungsten alloy blade is a kind of hard alloy, metal processing used in the workpiece.
Q:What is the difference between hard alloy steel and high speed steel?
3, hardness is not the same: cemented carbide hardness, especially at high temperature hardness, but high-speed steel toughness better4, can withstand the cutting speed is not the same: due to the red hard high, can withstand higher cutting speed, and high-speed steel is now not high speed
Q:What are the differences in performance between cemented carbide cutting tools and PCD cutters (polycrystalline diamond)?
PCD has a very high hardness, but its toughness is not as good as carbide, much lower than high-speed steel, therefore, the main failure form of PCD cutting tool is cutting edge.PCD cutters can effectively process non-ferrous metal materials and non-metallic materials. Such as copper, tungsten and other non-ferrous metals and their alloys, ceramics, hard alloy, various fiber and particle reinforced composite materials, plastics, rubber, graphite, glass and wood, but the diamond is not suitable for cutting steel and other iron materials.
Q:What type of carbide is the most ductile?
Cemented carbide material with tungsten and cobalt carbide toughness is better, at present the carbide grade in the most toughness of YG15. The relation between cobalt content and toughness is shown below. It can be seen that cobalt content and 13%-16% toughness are the best. In this interval, only YG15 cobalt content is 15%.
Q:YW2 carbide blade type
As far as I know, the blade is distinguished by code, not by outside. YG is a precision blade, but it is free of impact, and the amount of feed can not be too large. YT this is a rough turning tool, especially a good iron. That's all.
Q:The welding welding hard alloy cutter, should use what type of flame why
With the fire on it. Put the knife and put some red hot and then put up with borax alloy outer flame burning red and then placed in a good point copper alloy and borax on the use of knife gap flow with upper and lower outer flame burnt gap can be
Q:What are hard alloys? Which ones are they? How often are they chosen?
It is based on one or several carbides (TiC and WC) as the hardening phase, with carbon steel or alloy steel (such as high-speed steel, chrome molybdenum steel) powder as binder, powder metallurgy materials through proportioning, mixing, pressing and sintering. After annealing, it can be machined. After quenching and tempering, it has the same hardness and high wear resistance as the hard alloy. It can also be forged and welded, and has the characteristics of heat resistance, corrosion resistance and oxidation resistance. The utility model is suitable for manufacturing various tools with complicated shapes, such as twist drills, milling cutters, etc., and can also manufacture moulds and wear-resistant parts which work at higher temperature.
Q:The requirement of machining thread holes on carbide is higher
If the precision of the thread is not high enough, it can be produced by pressing.
Q:Carbide saw blades, plain and alternating teeth. What do you mean? That good?
The 3. ladder flat tooth is a combination of trapezoidal teeth and peace teeth, and the grinding is more complicated. When sawing, the utility model can reduce the phenomenon of overlaying and cracking, and is suitable for sawing and cutting all kinds of single and double facing artificial boards and fireproof boards. Aluminum saw blade, in order to prevent adhesion, but also more flat teeth with more teeth.4. ladder tooth often used for cutting saw blade trough, in artificial plate sawing double veneer, adjust the thickness of the bottom surface of the groove saw complete grooving, the main saw complete plate sawing, cutting edge to prevent the occurrence of collapse phenomenon.In summary, sawing wood, particleboard, MDF or tooth, can be sharp wood fiber cut, cut smooth; in order to keep the grooving bottom flat, with flat tooth or flat composite tooth; sawing plywood, fireproof board generally choose ladder flat teeth, is expected to open the computer the sawing sawing rate, diameter and thickness of the alloy blades are relatively large, about 350-450mm in diameter, 4.0-4.8mm in thickness, most of the ladder flat teeth, in order to reduce the edge collapse, saw.

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