Guess my metallutgical engineering background good for something...just cannot resist this one.
Whoever wrote the last statemnet...good explanation...and it is the carbon content in steel that does give it it strength and physical properties...it is the carbon content that was in the hull of the Titanic which made is suceptible to shattering/fracture in the cold arctic waters....3%-9%is used to manipulate hardness.
Steel with more than 0.3% carbon. The more carbon that is dissolved in the iron, the less formable and the tougher the steel becomes. High-carbon steel's hardness makes it suitable for plow blades, shovels, bedsprings, cutting edges, or other high-wear applications.
Vickers, Brinell, Rockwell, and ... Hardness Scales are most common for steel. Here is a list of those values: http://www.mesteel.com/cgi-bin/w3-msql/goto.htm?url=http://www.mesteel.com/info/carbon/hardness_table.htm
High Strength Low Alloy (HSLA)
A specific group of steels in which the strength levels are achieved by the addition of moderate amounts of alloying elements. The most common are columbium, vanadium or titanium.
The oxide of iron of highest valency which has a composition close to the stoichiometric composition Fe2O3.
65% - A copper-zinc alloy containing 35% zinc. Possesses high tensile strength and is used for springs, screws, rivets, etc.
HAVE A NICE DAY....thanks for the review...OH and ADT is your best bet...and it comes with a remote control...a keyless remote...
Hardness is the degree to which a metal will resist cutting, abrasion, penetration, bending and stretching. The indicated hardness of metals will differ somewhat with the specific apparatus measuring hardness. (See Brinell Hardness, Rockwell Hardness, Vickers Hardness, Scleroscope Hardness). Tensile Strength also is an indication of hardness.
Process that increases the hardness of steel, i.e., the degree to which steel will resist cutting, abrasion, penetration, bending, and stretching.
The increased endurance provided by hardening makes steel suitable for additional applications.
Hardening can be achieved through various methods, including (1) heat treatment, where the properties of steel are altered by subjecting the steel to a series of temperature changes; and (2) cold working, in which changes in the structure and shape of steel are achieved through rolling, hammering, or stretching the steel at a relatively low temperature.
Product intended for applications where greater strength is critical. High Strength typically begins at 35 ksi minimum yield strength.