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The alloy used for welding should be similar in strength to the bulk material being welded. Otherwise there will be stress concentration at the junction between the two alloys. This problem is somewhat reduced when the metals mix during welding, if the weld point moves slowly enough.
Any metal with a good conductivity can be used; normally thin copper or mild steel that is tin plated is used the later is less expensive.
Mild steel, not copper.
steel is the alloy of iron and carbon , so mild steel is an ferrous alloy
The thermal conductivity of steel varies depending on the alloy. (It also varies as the temperature of the metal.) Stainless steels are generally only about a third as thermally conductive as carbon steel. Copper is about ten times as thermally conductive as carbon steel. If a "number" is somehow required for the thermal conductivity (k) of steel, try k = 40 W/m K (at about 25 oC).
It depends on what you compare it to. Steel has a thermal conductivity about 100 times greater than insulation, but is less conductive than materials such as ceramic or copper.
aluminum has a lower melting point, higher thermal conductivity, and doesn't change color before it goes molten
heated up to kindling temperature of the mild steel
if by dry earth you mean dirt and soil then the answer is that mild steel is 100% more conductive then dry earth considering dirt doesnt conduct eletricity
A figure of merit for copper is 231A figure of merit for stainless steel is 8.1A figure of merit for steel (mild) is 32A figure of merit for aluminum is 136.The units are BTU / H * ft * Degrees F.For a given length of time copper will conduct almost twice as much heat as aluminum and 28 times as much as stainless steel (but only about 7 times as much as regular steel). This is why there are copper bottomed stainless steel pots.From the definition of thermal conductivity: for 1 Ft cube of copper it would take 231 BTU per hour to maintain a 1 degree (Fahrenheit) temperature difference across the the length of the cube. This compares to 0.04 BTU for a 1 ft. cube of fiberglass insulation.
mild steel is heavier
The alloy used for welding should be similar in strength to the bulk material being welded. Otherwise there will be stress concentration at the junction between the two alloys. This problem is somewhat reduced when the metals mix during welding, if the weld point moves slowly enough.
mild steel
Any metal with a good conductivity can be used; normally thin copper or mild steel that is tin plated is used the later is less expensive.
Mild steel
Mild steel, not copper.
No, mild steel is low carbon steel with no other alloys.