Â­Steel is iron that has most of the impurities removed. Steel also has a consistent concentration of carbon throughout (0.5 to 1.5 percent). Impurities like silica, phosphorous and sulfur weaken steel tremendously, so they must be eliminated. The advantage of steel over iron is greatly improved strength. The open-hearth furnace is one way to create steel from pig iron. The pig iron, limestone and iron ore go into an open-hearth furnace. It is heated to about 1,600 degrees F (871 degrees C). The limestone and ore form a slag that floats on the surface.
$7.20. 1  Cost can add up quickly, especially if youâre a novice and have never attempted a T & G Siding installation before. 2  Be sure to have a copy of the T & G Siding Manufacturerâs recommended installation requirements before starting, to make sure your project doesnât end up costing you more money in the long-run.
T-covers start at $80 for shell on wood with a normal design. A complicated design can raise the price, so it is good to contact me and ask. Shell on Shell designs start at $150. If you want me to use real gold or silver, that will increase the cost based on market rates at the time. There is also a $5 shipping fee within the U.S. or $10 anywhere else. The average cost of the most common t-covers is $120+shipping.