JGR Class 5500
The JGR Class 5500 was a type of 4-4-0 steam locomotive used for 60 years on Japanese Government Railways. The locomotives were imported from the United Kingdom. Sulfur was added to the forged steel used for the cylinders. The cylinders were set in a slightly canted position, and were used without replacement for the entire life of the locomotive. Japan was unable to produce cylinders of comparable durability. A locomotive of this type is preserved at the Ome Railway Park.