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Will a steel cable become longer if it is heated while under load?
Wiki User
∙ 16y ago
Even the heaviest steel cables stretch under load, whether they heat or not. Heating the cable will certainly elongate it. Friction -- caused by guides or pulleys -- can greatly increase the temperature of a cable under load. Well yeah! And, you might consider the possibility of total failure if the heat is high enough and I am not sure but the cable might act in unpredicable ways when it fails. Applying heat to a steel cable under load is probably dangerous to your health and the health of anyone nearby. Perhaps my previous answer was a little cavalier. When steel is heated steel expands. It does not need to be under load. That is the reason that in the old days before advanced electronics and optics surveyors used chains rather than cables for measuring land. Had they used cable they would have gotten different measurements in summer and winter based on the difference in temperature and the coefficient of expansionof the material.The coefficient of expansion is a number that informs just how much a given material will expand or contract for a given change in temperature. To find the coefficient of expansion and other interesting information consult a materials handbook, available in better libraries or your local college of engineering. Another example of expanding steel and the necessity for dealing with this characteristic is the overlapping slip joint found on bridges that allows horizontal structural members to expand and contract without damaging the bridge.
Wiki User
∙ 16y ago
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What is red-shortness in steel?
is the steel which breaks as it's heated to red hot
What is steel tape armored cable?
Armored cable that has a inbedded tape that is used for grounding purposes. The steel tape is wrapped around the inner conductors which carry the load current. A heavy rubber coating is applied over the steel tape layer. The steel and heavy rubber helps protect the cable from physical damage, e.g. by someone digging in the ground where the cable is buried.
Why is stainless steel dangerous to weld?
stainless steel contains chromium. chromium gives off toxic fumes when heated.
How does the strength compare between a steel rod and a steel cable of the same weight?
the rod will be stronger, but will break, the cable will bend under force, but not break. the rod has more tensile and shear strength.
Is Surface hardening better method to use or Annealing when these methods are used to manufacture products from ferrous metals?
These are two different methods that are opposites. Surface hardening is used to stiffen a steel. Usually a steel is heated, a catalyst is applied to the surface and then the steel is quenched in an oil bath or waterbath, this hardens the surface of the steel. Annealing on the other hand, the steel is heated and then allowed to cool slowly. This softens the steel and allows it to be drawn or hammered to form a different shape.
How does a bar of steel get shorter after it has cooled down?
The bar will contract (get shorter) as it cools down, and expand (get longer) as it is heated up.
What happens to steel when it gets cold?
(After it has been heated.) It will harden. (At room temperature.) It will become brittle. (After it has been cooled .) It will become very brittle.
Does steel expand or compress when heated?
The steel would EXPAND
Do steel wiredrawing plants make cable?
Steel wiredrawing plants manufacture cable
What temperature does mild steel need to be heated for thermal cutting to occur?
heated up to kindling temperature of the mild steel
what is the maximum diameter of single strand steel cable ?
The largest available single strand cable is 32mm. There's no reason it couldn't be made a bit larger, but at this point it's difficult to make a cable that remains flexible. So if you try to build it much bigger it's no longer a cable. Plus there is no real use for anything larger. A rope made of steel wire is much stronger than a single cable. According to online authorities, the maximum diameter of single strand steel cable is 12mm. If essential, contact a steel cable provider for a more accurate number.
Why isn't steel alone used for over head cables?
The overall weight of the cable would become a problem. Steel conductivity ratings would be lower that that of aluminium.
Many bridges are constructed using this type of architecture..?
steel cable suspension
What is red-shortness in steel?
is the steel which breaks as it's heated to red hot
How can you open the hood on a 1993 Buick Skylark when the hood release cable has snapped?
if the cable broke at the handle inside the car there will be a black cable with steel cable inside cut the black cable back so you see the steel cable get a par of visegrip pliers and pole the steel cable til the hood opens.
Why do the cables have a steel core?
Because the steel strengthens the cable
What is cable joint?
A cable joint is where multiple cable join together! Here's an XLPE cable joint(for other types of cable theres an other type of joint example: for a steel cable for bridges theres an iron/steel joint):
