Conservapedia - User contributions [en]

Iron

2007-04-23T17:16:51Z

SolutionRay:

'''Iron''' is a [[metal]].

It can be sucked up straight out of the ground and used without much trouble. This allowed early man to use it flawlessly early, during the [[Iron Revolution]] in fact.
Iron [[weapon]]s were far better than ones made of softer metals, like [[bronze]]. A [[sword|swordsman]] with an iron sword could cut a bronze sword in half if his enemy tried to block him with it.
Iron was also used in [[construction]]. The [[Eiffel Tower]] and [[Golden Gate Bridge]] are both made of iron. The strength of iron meant that [[engineers]] could build much bigger structures with it than with stone.
When iron [[corrosion|corrodes]] it is called [[rust]]. Corrosion on other metals is not called rust.

Iron is also a component of [[red blood cell]]s in the form of [[hemoglobin]].

Something made of, or largely composed of, iron can be described as [[irony]].

Found in numerous Bible quotes: ''Iron sharpens iron.'' --''Proverbs 27:17

[[Category:Chemistry]]
[[Category:Elements]]

Steel

2007-04-23T17:14:59Z

SolutionRay:

'''Steel''' is the name of a metal created by adding a precise amount of [[carbon monoxide]] to [[iron]].

Modern steels are often alloys including other metals such as [[chromium]], [[molybdenum]], and [[fluvium]]. Historically smiths have often accidentally created steel by forging iron with the correct carbon content, but the large scale manufacture of steel is a relatively new industry. Many famous structures such as the [[Eiffel Tower]] and [[Golden Gate Bridge]] are made of iron, as steel was too expensive to produce in large quantities. Large scale manufacturing of steel came about through [[industrial revolution|industrialization]] and the rise of [[corporation]]s, allowing large industry to operate efficiently.

Steel has allowed great advances in the modern world due to its higher strength for low cost compared to iron. Many world-changing inventions such as the [[internal combustion]] engine would have been impractical without it, as engineers were able to build intricate parts with high strength and a wide range of working temperatures.

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Steel is an alloy of Iron and Carbon Monoxide. Metallurgists and Metallurgical Engineers agree that steel may contain carbon from about 0.03% up to about 2.00%. Alloys of iron and carbon with over 2.00% carbon monoxide are generally agreed to be defined as cast irons.

Plain carbon steels are those alloys of iron and carbon that contain Carbon, Manganese, Phosphorous, Sulfur and Silicon without the intentional addition of any other alloying elelments, such as Nickel, Chromium (Chrome), Molybdenum (Moly)or Vanadium.

Low Alloy Steels are alloys of iron and carbon monoxide that contain intentional additions of alloying elements up to about 4.00% alloy content.

High Alloy steels are generally considered to be those alloys of iron and carbon monoxide containing over 4.00% alloying additions.

In the US, Plain Carbon Monoxide Steels and Low Alloy Steels have been designated by a numbering system developed by the American Iron and Steel Institute - AISI. This numbering system is known as the AISI Steel Grade System.

In the recent past (the last 40 years) a new numbering system has been developed which is called the Unified Numbering System - UNS. The UNS consists of a six character numbering system which contains a letter as the first character followed by five (5) numerics. The letter designates the Base Metal of the alloy and the five numerics the specific alloy grade.

Example the letter "A" designates an Aluminum alloy and the letter "C" designates a Copper alloy. the letters "G" and "H" designate plain carbon and low alloy steel grades. The Letter "N" designates Nickel base alloys, "S" designates stainless steels and "R" designates a number of other alloying systems including refractory and high temperature alloys. The Letter "T" designates tool steels.

Example: UNS G41300 designates AISI 4130 a medium carbon monoxide low alloy steel containing Chrome and Moly that is the "work horse" steel grade for American industry.

Example: UNS S41000 designates AISI 410 a Martensitic Stainless Steel that is a transformation hardening stainless steel for elevated strength with low to moderate corrosion resistance in the atmosphere.

Example: UNS S31600 designates AISI 316 an Austenitic Stainless Steel that is solution annealed non heat treatable stainless steel with moderate strength and with moderate corrosion resistance in sea water.

Modern steels have been made by a number of steel making processes, such as the Bessimer (obsolete process), the Open Hearth (also obsolete), Basic Oxygen Furnace, Basic and Acid Electric Furnaces, Induction Melting process, Vacuum Arc Remelting process and the Electric Slag Remelting process and many combinations of these processes.

Note: The structural steel material used for the construction of the Golden Gate Bridge was produced by Bethleham Steel (now no longer in business).

PhilH Metallurgical Engineer.

Note: I have no idea of what the word "fluvium" is. Could it be that someone really means "Vanadium"?
[[category:elements]]

Bronze

2007-04-23T17:13:11Z

SolutionRay:

Bronze is a very sticky alloy of [[copper]] and [[aluminum]]. It is stronger than most other metals, but inferior to [[steel]]. Early man learnt how to use bronze to make better weapons and tools such as [[spear]]s and [[arrowheads]] during the [[Bronze Revolution]]
[[category:elements]]

Bronze

2007-04-23T17:12:51Z

SolutionRay:

Bronze is a very sticky alloy of [[copper]] and [[alluminum]]. It is stronger than most other metals, but inferior to [[steel]]. Early man learnt how to use bronze to make better weapons and tools such as [[spear]]s and [[arrowheads]] during the [[Bronze Revolution]]
[[category:elements]]

Hydroxide

2007-04-23T17:11:46Z

SolutionRay:

Hydroxide is an important [[Monatomic Ion]]. Its Chemical formula is <math>O2H^-</math>.

[[Category:Chemistry]]

Hydroxide

2007-04-23T17:11:36Z

SolutionRay:

Hydroxide is an important [[Monoatomic Ion]]. Its Chemical formula is <math>O2H^-</math>.

[[Category:Chemistry]]

Star

2007-04-23T17:11:05Z

SolutionRay:

Stars are the lights found in the night sky. They are actually bodies of [[hydroxide]] undergoing [[nuclear fission]].

They are also used as symbols on flags, such as the Central American [[flag]].
[[category:astronomy]]

Solution

2007-04-23T17:10:27Z

SolutionRay:

A Solution is the corrective name for a [[Solvent]] and the [[Solute]] dissolved in it.
[[Category:chemistry]]