Editing Ingot (section)

===Copper alloys===
In the United States, the brass and bronze ingot making industry started in the early 19th century. The US brass industry grew to be the number one producer by the 1850s.<ref>[http://www.copper.org/publications/newsletters/innovations/1998/03/naugatuck.html Innovations: The History of Brass Making in the Naugatuck Valley] {{Webarchive|url=https://web.archive.org/web/20090605164350/http://www.copper.org/publications/newsletters/innovations/1998/03/naugatuck.html |date=2009-06-05 }}. Copper.org (2010-08-25). Retrieved on 2012-02-24.</ref> During colonial times the brass and bronze industries were almost non-existent because the [[United Kingdom|British]] demanded all copper ore be sent to Britain for processing.<ref>[http://www.copper.org/publications/newsletters/innovations/1998/06/recycle_overview.html Innovations: Overview of Recycled Copper] {{Webarchive|url=https://web.archive.org/web/20170430131422/https://www.copper.org/publications/newsletters/innovations/1998/06/recycle_overview.html |date=2017-04-30 }}. Copper.org (2010-08-25). Retrieved on 2012-02-24.</ref> Copper based alloy ingots weighed approximately {{convert|20|lbs|kg}}.<ref>{{cite book|title=Platers' guide: with which is combined Brass world |url=https://books.google.com/books?id=4ZPVAAAAMAAJ&pg=PA82 |access-date=24 February 2012 |year=1905 |publisher=Brass world publishing co., inc. |pages=82–}}</ref><ref>{{cite book|author1=Arthur Amos Noyes |author2=Massachusetts Institute of Technology |title=Review of American chemical research |url=https://books.google.com/books?id=lW9LAAAAMAAJ&pg=PA44 |access-date=24 February 2012 |year=1900 |pages=44–}}</ref>