Ferro Chrome

Chrome (Cr) Atomic Number 24

Chrome is the twenty first most abundant element in the Earth’s crust, its name is derived from the Greek word Chroma to mean colour due to the many colourful compounds made from it. Chrome does not occur free in nature, rather as the mineral Chromite. Chromite ore was first discovered in the Ural mountains of Russia in 1778 and chrome metal was subsequently isolated by Nicholas Louis Vauquelin in Paris, France in 1797. Initially it was incorrectly identified as being a lead compound due to its metallic red appearance. South Africa has 90% of the world’s economic chrome reserves and produces over 50% of the world's Chromite. Other producers are Kazakhstan and India with increasing amounts being produced in Turkey.

Properties of Ferro Chrome

Over 80% of the world’s ferro chrome is utilised in the production of stainless steel, which is defined as a steel alloy with a minimum of 10% chrome by content, the average chrome content being 18%. Stainless steel depends on chrome for its appearance and its corrosion resisting properties. High Carbon Ferro Chrome is most commonly used in specialist applications such as engineering steels. Lower carbon ferro chromes are produced in smaller quantities for more specialised applications. 

Production of Ferro Chrome

The two main products of chromite refining are Ferro Chrome and Chrome Metal. For the production of Ferro Chrome the chromite ore is reduced, usually by coal and coke in a high temperature reaction to form the iron-chrome alloy. For production of pure chrome the iron has to be separated from the chrome in a two step roasting and leaching process. Over 80% of the world’s ferro chrome is utilised in the production of stainless steel, which is defined as a steel alloy with a minimum of 10% chrome by content, the average chrome content being 18%. Stainless steel depends on chrome for its appearance and its corrosion resisting properties.

Available Grades

1.     Charge Chrome

2.     High Carbon Ferro Chrome

With chrome content from 60% minimum, there are several variations on High Carbon Ferro Chrome with carbon contents of:

Ferro chrome is often classified by the ratio of chrome to carbon it contains. The vast majority of ferro chrome produced is Charge Chrome. It has a lower Cr:C ratio and is most commonly produced in South Africa for use in stainless steel production. The second largest segment of the market is High Carbon Ferro Chrome which has a higher chrome content, being produced from higher grade chrome ore.

Chemical Analysis

Packing:

·          Bulk bags

Size:

·          3-35mm

·          1-15mm

·          5-10mm

·          10-50mm

·          30-50mm

·          30-60mm

·          10-100mm

3.     Low Carbon Ferro Chrome:

Low Carbon Ferro Chrome is produced by reducing chrome ore with Ferro Silicon Chromium, typically the chrome contents are minimum 60% with carbon contents ranging from 0.03% to 0.15% sometimes higher depending on the origin. It is used for trimming additions in stainless steel production as well as other specialist applications. It is added by stainless steel producers in the last stages of production to add precise amounts of chrome without affecting the carbon levels. An intermediate-carbon Ferro chrome is produced by further refining of Charge Chrome by blowing oxygen and steam through hot molten Charge Chrome to reduce the silicon and carbon levels. Typically the carbon is reduced to below 1.5%.

Chemical Analysis:

Aerospace grade available on request

Packing:

·          Drum on Pallets

Size:

·          5-50mm

·          10-100mm

4.     Medium Carbon Ferro Chrome.

Chemical Analysis:

Packing:

·          Bags

·          Drums on Pallets

Size:

·          3-35 mm

5.     Nitrided ferro Chrome

Packing:

·          Drum on pallets

Size:

·          10-50 mm

·          5-100 mm

Terms & Conditions

·         All prices in USD or INR per ton basis. Taxes, Duties & other charges extra.

·         Payment Terms will be Advance or LC at sight.

·         Containerized Shipment available.

·         Materials are supplied from India or third country depends on Availability.

·         Minimum Order quantity will be 1 container.

Write a review

Your Name:

Your Review: Note: HTML is not translated!

Rating: Bad           Good

Enter the code in the box below:

Continue