Steam Coal Posted on 22nd December 20157th May 2021 by ThePD (The Project Definition) Steam Coal is defined as all other hard coal not classified as coking coal. In the UK, bituminous coal or soft coal is commonly called the steam coal. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Substance and tagged coal, energy, solid. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.