Ferro Silicon Low Aluminum CNBM China Fortune 500

Ferro Silicon Low Aluminum CNBM China Fortune 500

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 0 m.t.

Supply Capability:: 20000 m.t./month

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Ferro Silicon Description

Ferro Silicon is a kind of ferroalloy which is composed of ferrum and silicon. Ferro Silicon uses coke, quartz

(or silica) as raw materials and is made by electric furnace. Because silicon and oxygen are easily compound

into SiO2, the ferrosilicon is often used as deoxidizer in steelmaking.

Ferro Silicon Application

1. Fesi 75% is often used as deoxidizer in steel- making.

2. Ferrosilicon also can be used as alloy elements join agent, which is widely used in low alloy steel, non-ferrous metal, bearing steel, heat-resistant steels and electrician silicon-steel.

3. It can be used as a reductant in ferroalloy production and chemical industry.

4. In iron industry it can be used as inoculant and nodulizer.

Specification

Brand	Chemical Composition (%)
	Si	Al	Ca	P		S		C		Fe
		<=
FeSi75-A	74.0-80.0	1.5	1		0.035		0.02		0.2		Balance
FeSi75-B	72.0-80.0	1.5	1		0.04		0.02		0.2		Balance
FeSi72	72	1.5	1		0.04		0.02		0.2		Balance
FeSi70	70	1.5	1		0.04		0.02		0.2		Balance
FeSi65	65.0-72.0	2	1		0.04		0.02		0.2		Balance
FeSi45	40.0-47.0	2	2		0.04		0.02		0.2		Balance

Packaging & Shipping
1. Plastic bag(antiproof) +Iron barrel, all adjustable to customer's specific demands.
2. Shipment within 3 working days after production.

Ferro Silicon Size

0-3mm,3-10mm,10-100mm or as the customers’ requirements

Packing

25Kg/bag, 1MT/bag or as your requirements.

Picture

Q: Can hard alloy be welded with silver electrode?: Hard alloy can use silver electrode welding, some more liquid silver wire than general tin brass or iron brass, the cost is too high, the strength level than the ordinary copper electrode should be higher, personal suggestions for the selection of copper base up instead of silver electrode, such as the WEWELDING 46 electrode (referred to as Odin Wei 46 If the strength of electrodes), the structure is higher than silver, if it is to achieve the high permeability, it is still the ideal to silver, only from the strength level, is not WEWELDING 46 copper based electrode.

Q: What are the differences between the two grades of carbide, YT15 and YT5?: YT15 is compared to YT5. The former has high hardness, great brittleness and good wear resistance. The latter is low in hardness, tough in toughness and poor in wear resistance. YT5 is often used for roughing or machining, impact cutting, and YT15 is usually semi finishing and finishing.

Q: Method for assembling hard alloy cold heading die: Are you the assembly of mould and punch, or the setting of hard alloy die core and steel sleeve when making cold heading die?If the mold and punch assembly, the use of gap assembly, the accuracy depends on the accuracy of your equipment,

Q: What kind of grinding wheel is the most suitable for carbide tools?. My existing grinder, 2800 rpm, /s wheel diameter, can hold 250mm. Please help answer.: Commonly used in 200*25*32 or 250*25*32 green carbide grinding wheel, hardness K or L, particle size 60.Cemented carbide: an alloy material made from powder metallurgy by hard metals and bonded metals of refractory metals. Hard alloy is widely used as a tool material, such as turning, milling, planing, drilling, boring, used for cutting cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone and steel, can also be used for cutting steel, stainless steel, high manganese steel, tool steel and other hard processing materials. Now, the cutting speed of new carbide tools is several times that of carbon steel. Hard alloy with high hardness, strength and toughness, good wear resistance, heat resistance, corrosion resistance and a series of excellent performance, especially high hardness and wear resistance of it, even at a temperature of 500 DEG C also remained unchanged, at 1000 degrees C still have high hardness.

Q: What is the heat treatment process of cemented carbide?: The common heat treatment process of steel bonded carbide is spheroidizing annealing, quenching and tempering.1, spheroidizing annealing die steel bonded carbide matrix is steel, as the alloy tool steel, need to be spheroidizing annealing treatment, can machine processing. The process of spheroidizing degradation is: heating 850~890 DEG C, holding 4h, and cooling the furnace to about 730 DEG C, holding 6h, the furnace is cold, and the air cooled below 500 degrees centigrade,2, the purpose is to make the quenching matrix transforms into martensite, obtain high mechanical properties, due to poor thermal conductivity, preheating, hard steel bonded carbide in carbide phase of austenite grain growth to deter, and the dissolution of carbide in the matrix alloy, iron and hinder the diffusion of carbon atoms, of austenite the grain growth plays an inhibitory effect, so the steel bonded hard alloy quenching overheating less than alloy tool steel, quenching temperature can be higher, the time may be longer, usually for WC type steel bonded hard alloy, quenching temperature of 1020~1050; for TiC type steel bonded hard alloy, quenching temperature is 950~1000 DEG C; G type steel bonded cemented carbide phase with high speed steel, quenching temperature of 1200~1280.3, steel bonded hard alloy die after quenching tempering should be timely, especially the large die should be timely, in order to eliminate quenching stress, prevent mold cracking, while tempering can adjust the organization to obtain the mechanical properties required, tempering temperature often take 180~200 C, 2h insulation, high toughness, high temperature tempering can be used as 500~650 C, but the need to avoid the brittle temperature zone at 250~350 DEG C, high temperature tempering, the carbide precipitation and residual austenite transformation, there will be two hardening, but high temperature tempering will cause precipitation of lead carbide link impact toughness decreases.

Q: What are the differences in performance between cemented carbide cutting tools and PCD cutters (polycrystalline diamond)?: Different cutting objects, PCD cutter durable, but cutting some materials may not be good on the PCD

Q: The use of wire cutting cut a knife head rest wear found with magnetic iron absorption, cutting.: Iron, cobalt, nickel, or iron, cobalt, and nickel are mixed together..

Q: What are the carbide inserts on the turning tool welded to the handle?: The first copper burned in the post, and then the borax fell on the top, then put on top of the alloy blade, borax fell on the alloy blade above the flame cutting with money. Be careful not to use the high pressure oxygen valve. Wait until the copper water flows out evenly. Let him cool naturally,

Q: Can carbide drills be used for high speed steel twist drills?: General workpieces do not need alloy drills, although durable, but the cost is too high

Q: What does P stand for and what is 30? What are its advantages and disadvantages? What is suitable for processing?: ISO (International Organization for Standardization) will be divided into carbide alloy P, M, K three categories, P class equivalent to China's YT class, the main ingredient is WC-TiC-Co;In order to be processed in different cutting conditions of material grade, in the P class with 01-50 number between that from the highest hardness to a series of alloys for maximum toughness between P30, roughly equivalent to the YT5 of our country;This kind of cemented carbide has the highest strength and best impact resistance in YT (P), but it has poor wear resistance. It is suitable for intermittent roughing of general carbon steel and alloy steel.

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