Steam locomotives of British Railways

The steam locomotives of British Railways were used by British Railways over the period 1948-1968. The majority of these were inherited from the Big Four British railway companies. In the 1950s, new British Railways Standard steam locomotives were introduced.

ex-Great Western Railway No. 6833 Calcot Grange, a 4-6-0 Grange class steam locomotive, at Bristol Temple Meads station

Preserved War Department steam locomotive

Numbering

BR locomotives were numbered in the following series:

• 1 series, former Great Western Railway steam locomotives
• 10,000 series, diesel locomotives and electric locomotives
• 30,000 series, former Southern Railway steam locomotives
• 40,000 and 50,000 series, former London, Midland and Scottish Railway steam locomotives
• 60,000 series, former London and North Eastern Railway steam locomotives
• 70,000 series, British Railways Standard steam locomotives
• 90,000 series, former War Department steam locomotives (originally in 70,000 series)
• 92,000 series, BR Standard Class 9F