Medium-Grade Chromite Ore (38–42% Cr₂O₃)

Medium-Grade Chromite Ore (38–42% Cr₂O₃) from Pakistan

Medium-grade chromite ore sits between the chemical/refractory grades (30–36%) and the premium metallurgical grades (46%+) in terms of chromium content and commercial value. It is one of the most traded chromite grades globally, used as feedstock for charge chrome furnaces, refractory plants, and chemical processors. Pakistan’s Balochistan chromite belt produces this grade in significant commercial volumes from both open-pit and underground mining operations.

Typical Composition

• Cr₂O₃: 38–42%

• FeO: 16–22%

• MgO: 12–18%

• Al₂O₃: 10–16%

• SiO₂: 2–6%

• CaO: < 0.5%

• P: < 0.01%

• S: < 0.01%

• Cr:Fe Ratio: 2:1 to 2.5:1

Available Forms

• Run-of-mine (ROM) lumps: 10–250 mm

• Crushed lumps: 10–50 mm, 0–10 mm

• Gravity concentrates (fines): 0–3 mm

• Custom sizing available

Industrial Uses

• Charge chrome smelting: Feedstock for charge chrome (50–55% Cr) and high-carbon ferrochrome furnaces where premium metallurgical-grade ore is not required

• Refractory manufacturing: Chrome-mag and mag-chrome bricks for steel converters, EAF sidewalls, cement rotary kilns, and non-ferrous smelters

• Chemical manufacturing: Production of sodium dichromate, chromium trioxide, chrome sulfate, and chrome oxide green pigment

• Foundry sand: Chromite sand for steel, iron, and aluminium casting molds and cores

• Welding consumables: Chromite fines as a flux and coating ingredient in welding electrodes and wires

• Pigment and tanning: Chrome-based pigments for paints and ceramics; chromium sulfate for leather tanning

Quality Assurance

Each lot includes a Certificate of Analysis reporting Cr₂O₃, FeO, SiO₂, Al₂O₃, MgO, CaO, P, S, moisture, and size distribution. Pre-shipment samples are provided for buyer approval. Third-party inspection (SGS, Intertek, or equivalent) can be arranged on request.