{"id":191,"date":"2019-03-11T17:05:18","date_gmt":"2019-03-11T13:35:18","guid":{"rendered":"https:\/\/mecacopper.com\/?p=191"},"modified":"2020-05-02T15:52:00","modified_gmt":"2020-05-02T11:22:00","slug":"brass-tube","status":"publish","type":"post","link":"https:\/\/mecacopper.com\/brass-tube\/","title":{"rendered":"Brass Tube…"},"content":{"rendered":"

Both bronze and brass may include small proportions of a range of other\u00a0elements\u00a0including\u00a0arsenic,\u00a0lead,\u00a0phosphorus,\u00a0aluminium,\u00a0manganese, and\u00a0silicon. The distinction is largely historical.<\/sup>\u00a0Modern practice in museums and\u00a0archaeology\u00a0increasingly avoids both terms for historical objects in favour of the all-embracing \u201ccopper alloy\u201d.<\/sup><\/p>\n

Brass is used for decoration for its bright gold-like appearance; for applications where low\u00a0friction\u00a0is required such as locks, gears, bearings,\u00a0doorknobs,\u00a0ammunition\u00a0casings and valves; for plumbing and electrical applications; and extensively in\u00a0brass musical instruments\u00a0such as horns and bells where a combination of high workability (historically with hand tools) and durability is desired. It is also used in\u00a0zippers. Brass is often used in situations in which it is important that\u00a0sparks\u00a0not be struck, such as in fittings and tools used near flammable or explosive materials.<\/sup><\/p>\n

\n

Brass has higher malleability than bronze or zinc. The relatively low\u00a0melting point\u00a0of brass (900 to 940\u00a0\u00b0C, 1,650 to 1,720\u00a0\u00b0F, depending on composition) and its flow characteristics make it a relatively easy material to cast. By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard and soft brasses. The\u00a0density\u00a0of brass is 8.4 to 8.73 grams per cubic centimetre (0.303 to 0.315\u00a0lb\/cu\u00a0in).<\/sup><\/p>\n

\"\"<\/p>\n

Today, almost 90% of all brass alloys are recycled.<\/sup>\u00a0Because brass is not\u00a0ferromagnetic, it can be separated from ferrous scrap by passing the scrap near a powerful magnet. Brass scrap is collected and transported to the foundry where it is melted and recast into\u00a0billets. Billets are heated and extruded into the desired form and size. The general softness of brass means that it can often be machined without the use of\u00a0cutting fluid, though there are exceptions to this.<\/sup><\/p>\n

\n

Aluminium makes brass stronger and more corrosion-resistant. Aluminium also causes a highly beneficial hard layer of\u00a0aluminium oxide\u00a0(Al2<\/sub>O3<\/sub>) to be formed on the surface that is thin, transparent and self-healing. Tin has a similar effect and finds its use especially in\u00a0seawater\u00a0applications (naval brasses). Combinations of iron, aluminium, silicon and manganese make brass\u00a0wear and tear\u00a0resistant.<\/p>\n","protected":false},"excerpt":{"rendered":"

Both bronze and brass may include small proportions of a range of other\u00a0elements\u00a0including\u00a0arsenic,\u00a0lead,\u00a0phosphorus,\u00a0aluminium,\u00a0manganese, and\u00a0silicon. The distinction is largely historical.\u00a0Modern practice in museums and\u00a0archaeology\u00a0increasingly avoids both terms for historical objects in favour of the all-embracing \u201ccopper alloy\u201d. Brass is used for decoration for its bright gold-like appearance; for applications where low\u00a0friction\u00a0is required such as locks, gears,[more]\n","protected":false},"author":1,"featured_media":187,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[148],"tags":[],"_links":{"self":[{"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/posts\/191"}],"collection":[{"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/comments?post=191"}],"version-history":[{"count":0,"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/posts\/191\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/media\/187"}],"wp:attachment":[{"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/media?parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/categories?post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mecacopper.com\/wp-json\/wp\/v2\/tags?post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}