Needle coke | Source: EPIC Milling

Coal-tar needle coke is a premium-grade, highly crystalline form of coal-derived coke produced in a delayed coker from highly aromatic coal tar heavy residues. Its name derives from its distinctive needle-like or fibrous microstructure, visible under polarised light microscopy, which reflects the highly oriented, graphene-like carbon layers formed during coking. This long-range microstructural order results in exceptionally low levels of impurities and a characteristically low Coefficient of Thermal Expansion (CTE) — the defining quality parameter of needle coke.

Read the detailed coal-tar needle coke profile here.

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