Steel: Difference between revisions
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{{era|Human|UNSC|HCW}} | {{era|Human|UNSC|HCW}} | ||
{{SeeWikipedia|Steel}} | {{SeeWikipedia|Steel}} | ||
'''Steel''' is an alloy consisting mostly of iron, with a carbon content between 0.2 and 1.7 or 2.04% by weight (C:1000–10,8.67Fe), depending on grade. | '''Steel''' is an alloy consisting mostly of iron, with a carbon content between 0.2 and 1.7 or 2.04% by weight (C:1000–10,8.67Fe), depending on grade. | ||
==Chemistry== | |||
== | |||
Carbon is the most cost-effective alloying material for iron, but various other alloy elements are used such as manganese, chromium, [[vanadium]], and tungsten. Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another. Varying the amount of alloying elements and form of their presence in the steel (solute elements, precipitated phase) controls qualities such as the hardness, ductility and tensile strength of the resulting steel. Steel with increased carbon content can be made harder and stronger than iron, but is also more brittle. The maximum solubility of carbon in iron (in austenite region) is 2.14% by weight, occurring at 1149 °C; higher concentrations of carbon or lower temperatures will produce cementite. Alloys with higher carbon content than this are known as cast iron because of their lower melting point. Steel is also to be distinguished from wrought iron containing only a very small amount of other elements, but containing 1–3% by weight of slag in the form of particles elongated in one direction, giving the iron a characteristic grain. It is more rust-resistant than steel and welds more easily. | Carbon is the most cost-effective alloying material for iron, but various other alloy elements are used such as manganese, chromium, [[vanadium]], and tungsten. Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another. Varying the amount of alloying elements and form of their presence in the steel (solute elements, precipitated phase) controls qualities such as the hardness, ductility and tensile strength of the resulting steel. Steel with increased carbon content can be made harder and stronger than iron, but is also more brittle. The maximum solubility of carbon in iron (in austenite region) is 2.14% by weight, occurring at 1149 °C; higher concentrations of carbon or lower temperatures will produce cementite. Alloys with higher carbon content than this are known as cast iron because of their lower melting point. Steel is also to be distinguished from wrought iron containing only a very small amount of other elements, but containing 1–3% by weight of slag in the form of particles elongated in one direction, giving the iron a characteristic grain. It is more rust-resistant than steel and welds more easily. | ||
==Use== | |||
== | |||
Steel is an unusual metal for a [[Covenant Empire|Covenant]] vessel, but some [[Jiralhanae]] ships such as ''[[Rapid Conversion]]'' have steel incorporated into their superstructures.<ref>'''[[Halo: Contact Harvest]]''', ''page 194''</ref> The doors and ceiling braces on ''[[Rapid Conversion]]'' were constructed of forged steel.<ref>'''[[Halo: Contact Harvest]]''', ''page 194''</ref> | Steel is an unusual metal for a [[Covenant Empire|Covenant]] vessel, but some [[Jiralhanae]] ships such as ''[[Rapid Conversion]]'' have steel incorporated into their superstructures.<ref>'''[[Halo: Contact Harvest]]''', ''page 194''</ref> The doors and ceiling braces on ''[[Rapid Conversion]]'' were constructed of forged steel.<ref>'''[[Halo: Contact Harvest]]''', ''page 194''</ref> | ||
The [[UNSC]] also use steel aboard their ships, in the form of [[TR | The [[UNSC]] also use steel aboard their ships, in the form of [[TR steel]] and [[Vanadium steel]]. Covenant [[Huragok]] also use steel on [[K7-49]]. <ref>'''[[Ghosts of Onyx]]''', ''page 85''</ref> | ||
==Sources== | ==Sources== | ||
<references/> | <references/> | ||
[[Category:Materials]] | [[Category:Materials]] | ||
Revision as of 07:31, May 28, 2011
Template:SeeWikipedia Steel is an alloy consisting mostly of iron, with a carbon content between 0.2 and 1.7 or 2.04% by weight (C:1000–10,8.67Fe), depending on grade.
Chemistry
Carbon is the most cost-effective alloying material for iron, but various other alloy elements are used such as manganese, chromium, vanadium, and tungsten. Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another. Varying the amount of alloying elements and form of their presence in the steel (solute elements, precipitated phase) controls qualities such as the hardness, ductility and tensile strength of the resulting steel. Steel with increased carbon content can be made harder and stronger than iron, but is also more brittle. The maximum solubility of carbon in iron (in austenite region) is 2.14% by weight, occurring at 1149 °C; higher concentrations of carbon or lower temperatures will produce cementite. Alloys with higher carbon content than this are known as cast iron because of their lower melting point. Steel is also to be distinguished from wrought iron containing only a very small amount of other elements, but containing 1–3% by weight of slag in the form of particles elongated in one direction, giving the iron a characteristic grain. It is more rust-resistant than steel and welds more easily.
Use
Steel is an unusual metal for a Covenant vessel, but some Jiralhanae ships such as Rapid Conversion have steel incorporated into their superstructures.[1] The doors and ceiling braces on Rapid Conversion were constructed of forged steel.[2]
The UNSC also use steel aboard their ships, in the form of TR steel and Vanadium steel. Covenant Huragok also use steel on K7-49. [3]
Sources
- ^ Halo: Contact Harvest, page 194
- ^ Halo: Contact Harvest, page 194
- ^ Ghosts of Onyx, page 85
