Shingling
Stage in production of bar iron or steel
title: "Shingling" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["metallurgical-processes"] description: "Stage in production of bar iron or steel" topic_path: "general/metallurgical-processes" source: "https://en.wikipedia.org/wiki/Shingling" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Stage in production of bar iron or steel ::
Shingling was a stage in the production of bar iron or steel, in the finery and puddling processes. As with many ironmaking terms, this is derived from the French - cinglage.
The product of the finery was a bloom or loop (from old Frankish luppa or * lopp*, meaning a shapeless mass); that of the puddling furnace was a puddled ball. In each case, this needed to be consolidated by hammering it into a more regular shape. This was done manually with heavy hammers; later by a waterwheel or steam powered hammers, leading to modern power hammers. The result was an oblong-shaped iron product similar in appearance to shingles used on roofs. In the finery, this was part of the work of the finer; during puddling, it was done by a special workman called the shingler. The iron (or steel) then had to be further shaped (drawn out) under the hammer or rolled in a rolling mill to produce a bar. In more recent times, the process was carried out using mechanical jaws to squeeze the puddled ball into shape.
References
- H. R. Schubert, History of the British iron and steel industry (1957), 285-6
- W. K. V. Gale, The iron and steel industry: a dictionary of terms (Newton Abbot, 1971), 184.
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