Chemistry:Arsenical copper
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Arsenical copper contains up to 0.5% arsenic which, at elevated temperatures, imparts higher tensile strength and a reduced tendency to scaling. It is typically specified in boiler work, especially locomotive fireboxes.[1][2][3] It also helps prevent embrittlement of oxygen-free copper by bismuth, antimony and lead by the formation of complex oxides. Copper with a larger percentage of arsenic is called arsenical bronze, which can be work-hardened much harder than copper.
See also
References
- ↑ Rollason, EC (1949). Metallurgy for Engineers (2nd ed.). London: Arnold.
- ↑ "IBR - 1950 : Reg. 129 A". http://dipp.gov.in/boilerrules_previous/reg129a.htm.
- ↑ "Journmal Institution Locomotive Engineers Volume 42 (1952)". http://www.steamindex.com/jile/jile42.htm.
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