What is the composition of ferrochrome?
Overview : Ferrochrome (FeCr) is an alloy of chromium and iron containing between 50% and 70% chromium. The Producer od stainless steel & tool steel are the largest consumer of ferrochrome and charge chrome.It is chromium that confers upon stainless steel its remarkable corrosion resistance.
What is ferrochrome used for?
Ferrochrome, or Ferrochromium (FeCr) is a type of ferroalloy, that is, an alloy between chromium and iron, generally containing 50% to 70% chromium and is used in the production of stainless steel, special steel and castings.
What is high carbon ferro chrome?
High carbon ferrochrome represents a group of alloys with a chromium content typically between 60% and 70% and a carbon content typically between 4% and 6%. To meet this specification the alloy requires a chromite ore with a high Cr/Fe ratio (>2).
What is the price of chrome per ton?
Prices are currently ruling at around ₹95,000 a tonne, as against ₹60,000-65,000 a tonne in September-October, 2020.
Is ferrochrome toxic?
Due to the leaching potential of these contaminants, ferrochrome arc furnace dust is categorized as toxic waste in Canada (waste K091) and must be treated before disposal in order to prevent leaching toxins into the environment. Health risks via inhalation are also a concern.
How do you make ferro chrome?
Ferrochrome (FeCr) is an alloy of chromium and iron containing between 50 percent and 70 percent chromium. It is produced by electric arc melting of chromite, which isan iron magnesium chromium oxide and the most important chromium ore.
Is ferro chrome toxic?
Ferrochrome Production Exposure Effects Studies have linked ferrochrome worker exposure to Cr-VI in dust is to asthma, nasal skin damage and septal perforation. Exposure to dust has been linked to generalised obstructive lung disease and decreased lung function. Use of breathing filters can help avoid these issues.
What is ROM in Chrome?
Chrome ROM refers to the raw mined material as it is delivered by the mine cars, skips, or conveyors and prior to treatment of any sort.
What is the cost of chromium in India?
The cost of Chromium in India varies from ₹ 3060 to ₹ 3060 in 1 cities of India. The lowest price of Chromium, amongst the metro cities, is at Kolkata. Chromium Costs ₹ 3060 in Kolkata. The market price is much higher at ₹ 3600.
What is the price of ferrochrome?
Prices are currently ruling at around ₹95,000 a tonne, as against ₹60,000-65,000 a tonne in September-October, 2020. Production of chrome ore, which goes into making ferro chrome, was impacted due to Covid-induced lockdown which consequently pushed up prices of ferro chrome, said industry experts.
Does the silicon content of ferrochromium depend on the silica content?
It is believed that under the highly reducing conditions in the submerged arc furnace, the silicon content of the ferrochromium would also depend on the silica content of the ash in the carbonaceous reductant used.
What is the Cr/Fe ratio of ferrochrome?
These ores typically have Cr/Fe ratios of 1.5 to 1.6 and result in ferrochrome with a chromium content of 50% to 55% (and recently even below 50%) and carbon content typically between 6% and 8%. Ferrochrome produced from these ores is generally referred to as charge chrome and is often included in the broad category of high carbon ferrochrome.
How do you make ferrochromium from slag?
In general, the specifications for ferrochromium call for a silicon level below 3%. This can be achieved by utilizing the idea, mentioned earlier, of forming a layer of chromic oxide ore in the lower portion of the slag, which oxidizes some silicon in addition to carbon.
What is high carbon ferrochrome?
High carbon ferrochrome represents a group of alloys with a chromium content typically between 60% and 70% and a carbon content typically between 4% and 6%. To meet this specification the alloy requires a chromite ore with a high Cr/Fe ratio (>2).
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