not long, but a while. it can rust.
Steel bridges take a long time to build because of the precision of the work. The pieces have to fit perfectly together, or else the bridge will not be safe.
Q345B is black carbon steel. The specification of a Q345B steel sheet depends on what you want and ranges from 6 to 120mm thick, 1600 to 3200mm wide and 6000 to 12000mm long.
The stem or the spine is the central structural beam of a ship.
The inventor has been forgotten, it was so long ago.
It depends on the composition of the steel as there are many different grades and types of steel.
Gerdau Ameristeel produces long steel products. Long steel is considered a semi-finished product and consists of rods, bars, wires, structural shapes and tubes.
Steel wool is considered an abrasive yes.It is an abrasive material composed of long steel fibersof varying degrees of fitness that are matted together.-Shakira
some compounds can take along time to heat but the easiest is alumanuim copper steel tin
how long does it take to heat a 5.5 lb rib roast at 275 degrees to an internal temperature of 135 degrees
Yes, stainless steel cookware can generally be used in the oven as long as it does not have any plastic or wooden parts that could be damaged by the heat.
To know how fast this will melt you need to know the amount of stainless steel and the temperature of the stainless steel at the beginning. Then using the formulas of energy needed to heat it (Cp, I think) and melt it (enthalpy) you can calculate when it will melt.
Steel has a heat capacity of about 0.49 kJ/kg/°C. Solid plastics have a heat capacity of about 1.67 kJ/kg/°C. It thus takes more energy to warm plastic 1 °C than to warm steel 1 °C. As to why steel has a higher heat capacity than plastic... It may be because plastics have more ability to absorb energy into the vibrational modes of the atoms in the long polymer chains than steel does in its fairly fixed crystaline/metal structure.
mine took 36 hours - the water fill was about 55 degrees
I think you mean beam W30x150; where 30 is the nominal depth in inches, and 150 is the weight in pounds per linear foot. To answer the question about the compression strength, it is all relative to the type of steel, the length of the structural member, and how it is fixed at either end. Is it A-36 or A-50 steel; is it 10 ft. long, or 20 ft. long; is it pinned (bolted) or fixed (welded)? These unknown variables must be addressed before this theoretical value can be calculated.
Aluminium (usually as an alloy) and stainless steel are used because both heat up quickly, are easy to manufacture, and last a long time.
It depends on the volume of water present, and the heat of the water to start with.