Chrome Flour

Refractory Application

Chrome flour is used in the production of chrome magnesite refractory bricks, which are used in the construction of certain furnaces and kilns. Due to its highly corrosion-resistant nature, chrome flour is also used to produce magnesia chrome refractories that are used in non-ferrous metals like copper, lead, and zinc.

In stainless steel production, filler sand made with chrome flour prevents molten steel from settling inside tap holes and solidifying. The chrome flour allows this solution to be effective at high temperatures with long processing times.

  • Stable at high temperatures
  • Thermal-shock resistant
  • Resistant to corrosive slags and gasses
  • High refractoriness/heat resistance


  • Cr203 of typically 44%
  • Al2O3 of 15%
  • Chrome content between 15% and 35% Cr203 (Magnesite chrome refractory bricks require 8% to 18% Cr203)


Refractory bricks made with chrome flour are suitable for use in:

  • Open earth furnaces
  • Electric arc furnaces
  • Metallurgy furnaces
  • Cement rotary kilns
  • Glass kilns
  • High-temp industrial furnaces

African Pegmatites chrome is trivalent chromium (Chrome 3) and not hexavlent (Chrome 6). Hexavelnt chrome is hazerdous and a carcinogen while also being heavily regulated. African Pegmatites chrome is environmentally friendly which is a trivalent chromium.


Choose the packaging and shipping arrangement that best suits your needs, from small packaging to bulk bags or custom sizes made just for you. We can accommodate virtually any size, from one metric ton to thousands.


We maintain competitive pricing in an effort to win and retain your business for as long as you need us. Our goal is to meet the needs of every customer, including those with special requests and demanding production schedules.

A 15-day general turnaround for manufacturing allows us to get your compounds to you as quickly as possible, so you can keep up with the demands of your business. Contact us to get in touch with a distributor in your area if you don’t have time to wait for materials.

We currently ship to 44 countries across the world and we’re happy to ship to yours, too. The dependable and professional logistics channels we have in place make it easy to offer great pricing and service regardless of your location.

African Pegmatite

With 48 years as professionals in mining and manufacturing, we have the insight, network, and experience to offer you the very best in quality, service, and efficiency. We’ve been accredited by the ISO 9001 since 2002 and have most recently met the 2015 standard.

We aim to provide the very best materials available to our customers, and become your one-stop shop for colourants, minerals, compounds, and more. Take a look at our general refractory page to see all the other refractory and supplementary products we have available.

If you’d like to become a distributor of African Pegmatite products, get in touch with us and we’ll customise an arrangement with you.