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Crucible Industries, commonly known as Crucible, is an American company which develops and manufactures specialty steels, and is the sole producer of a line of sintered steels known as Crucible Particle Metallurgy (CPM) steels.
Iron alloys are most broadly divided by their carbon content: cast iron has 2–4% carbon impurities; wrought iron oxidizes away most of its carbon, to less than 0.1%. The much more valuable steel has a delicately intermediate carbon fraction, and its material properties range according to the carbon percentage: high carbon steel is stronger but more brittle than low carbon steel.
A modern crucible used in the production of silicon ingots via the Czochralski process Smaller clay graphite crucibles for copper alloy melting. A crucible is a container in which metals or other substances may be melted or subjected to very high temperatures.
Crucible steels like wootz steel and Damascus steel exhibit unique banding patterns because of the intermixed ferrite and cementite alloys in the steel.. Wootz steel is a crucible steel characterized by a pattern of bands and high carbon content.
'metal; copper; iron'). [2] The Indian cultural and commercial contacts with the Near East and the Greco-Roman world enabled an exchange of metallurgic sciences. [3] The advent of the Mughals (established: April 21, 1526—ended: September 21, 1857) further improved the established tradition of metallurgy and metal working in India. [4]
Perhaps as early as 300 BCE — although certainly by 200 CE — high-quality steel was being produced in southern India by what Europeans would later call the crucible technique. [13] Using this system, high-purity wrought iron, charcoal, and glass were mixed in a crucible and heated until the iron melted and absorbed the carbon. [13]
Iron metal is singularly scarce in collections of Egyptian antiquities. Bronze remained the primary material there until the conquest by the Neo-Assyrian Empire in 671 BC. The explanation of this would seem to be that the relics are in most cases the paraphernalia of tombs, the funeral vessels and vases, and iron being considered an impure ...
[citation needed] With a chrome content of 12%, some call it a "semi-stainless", because of the lack of free Chromium in solution, even though it is defined by ASM and ANSI as stainless, which contains at least 11.5% by weight of chromium. [citation needed] While not as tough as premium carbon steel, it is much tougher than premium stainless steel.