thumb|A piece of cut blackplate, 4 mm thick '''Blackplate''' is hot rolled or cold rolled,<ref>DIN 55405:2006-11 ''Verpackung - Terminologie - Begriffe'', Berlin: Beuth Verlag.</ref> non-descaled sheet steel or sheet iron.<ref name=Merriam>[https://www.merriam-webster.com/dictionary/black%20plate ''Blackplate''] at www.merriam-webster.com. Retrieved 30 Apr 2017.</ref>
== Manufacture and properties == Blackplate is made of non-tinned<ref name=Merriam/> iron or steel and is annealed on open flames or in an annealing box.<ref name="Roempp">{{RömppOnline|Name=Schwarzblech |Datum=20 June 2014 |ID=RD-19-01317 }}</ref> Its dark appearance is caused by its reaction with the surrounding air.<ref name="Roempp" /> During warm rolling, blackplate can be manufactured to thicknesses of 1.5 mm or more.<ref name="europerf.org">Entry on [http://europerf.org/de/technische-informationen/material-liste/rohmaterial/schwarzblech/ ''Schwarzblech''] {{Webarchive|url=https://web.archive.org/web/20140527220517/http://europerf.org/de/technische-informationen/material-liste/rohmaterial/schwarzblech/|date=2014-05-27}} at europerf.org, retrieved 27 March 2012.</ref> Cold rolled blackplate, by contrast, can be made thinner – thicknesses of 0.4 to 1.5 mm being attainable – and produces better surface qualities.<ref name="europerf.org" />
== See also == * Tinplate
== References == {{Reflist}}
Category:Steel objects