Coking Coal vs PCI Coal for Steel Manufacturing

Coking coal is purchased to make coke; PCI coal is purchased for pulverised injection into a blast furnace. Both belong to metallurgical procurement, but they perform different jobs. A good coking-coal offer is not automatically an acceptable injection-coal offer, and the reverse is also true.

Coking coal and the coke blend

During carbonisation, suitable coking coal softens and forms a coke structure. The buyer evaluates how each component contributes to the whole blend and the required coke performance. Relevant requests may include fluidity, dilatation, swelling or caking tests, petrography and coke strength/reactivity tests such as CSR and CRI under agreed conditions.

SGS describes petrographic analysis as a tool for evaluating bituminous coals and blends for blast-furnace coke production. This is a different qualification task from measuring energy content. A generic thermal analysis cannot substitute for the steelworks' required blend assessment.

PCI and furnace injection

Worldsteel describes PCI as injection of fine coal particles into the blast furnace, reducing part of the coke requirement. The incoming coal may still need drying and pulverisation at the steelworks. Specify delivered sizing separately from the injection-system fineness requirement.

The buyer should review grindability, moisture, volatile matter, ash chemistry, sulfur, phosphorus and combustion/burnout behaviour according to the plant's requirements. Different injection programmes can prefer different blends. There is no universal “PCI grade” assay that fits every furnace.

Build separate acceptance schedules

Approve sources through the plant

Ask the technical team to define the required test package and trial sequence before inviting offers. Keep the allowed source, blending policy and change-approval procedure in the contract. A later cargo with similar ash and energy can still behave differently because those two parameters do not describe every relevant property.

Does PCI remove all need for coke?

No. Injection changes part of the fuel and reductant balance; it does not mean coke's other blast-furnace roles disappear. Avoid universal replacement claims when discussing a purchase.

See the separate coking coal, PCI coal and metallurgical overview pages.

Turn the guidance into a comparable offer

Ask the proposed supplier to separate confirmed information from open items. Record the product, source country, analytical basis, shipment quantity and named delivery point on the same comparison sheet. An offer that omits one of these fields should be clarified before it is ranked against complete offers. Do not treat an indicative market description as an accepted consignment specification.

For a recurring programme, agree how changes in source or quality will be approved and how each delivery will be sampled. Keep technical approval separate from payment and freight approval, then reconcile them in the purchase contract. This helps prevent a commercially attractive offer from bypassing the receiving plant's acceptance conditions.

Related coal sourcing

• Metallurgical Coal
• Coking Coal
• Pci Coal

Duara Group assesses sourcing requirements from Kenya for African and international buyers. Origin, availability, assay, price and delivery terms require transaction-specific confirmation. Request a bulk coal quotation with your specification, metric-ton quantity, destination and delivery window.

Sources and scope

Sources reviewed on 26 October 2026. Technical guidance is a purchasing framework; the signed specification and applicable current rules control each transaction.

• Worldsteel: raw materials and PCI
• SGS: coal petrography