a steel bar is a magnetically susceptable material. if you apply a magnetic field through the steel bar, such as applying a DC current through a solenoid winded around it, it will become magnetized.
Just rubbing a magnet against the steel bar will help align all the magnetic dipoles in a general direction for it to be considered a magnet.
500W in steel bar means this steel yields 500MPa strength
Extreme Steel bar is known as re-bar ( Reinforcing Bar), with two longitudinal and transverse ribs on the diameter of Bar.
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Over lap of steel bar is provided 60 times of dia of steel bar. For example (.5") dia steel bar overlap length is (30"). (.5x60=30")
Calculate cross sectional area of 10mm bar amd 8mm bar, then divide them and you will get the no. of bars. For Eg. - Area of 10mm bar = 78.53 sq.mm Area of 8mm bar = 50.26 sq.mm No. of 8mm bars in replacement for 10mm bar = 1.562 bars [ theoritical] In practical u'll provide 2-8mm bars.
Welding, in short. Welding steel which contains iron will magnetize it as running an electric current through it will create a temporary magnetic field. This field will magnetize the iron in the steel and therefore give the ship a field of its own.
An ordinary steel sewing needle is easy to magnetize.
Cause you're changing the direction of the atoms when you magnetize it.
because steel keeps its magnetism for a bit when you switch off the current so it would still magnetize things.
You magnetize an iron needle permanently by stroking it with a strong bar magnet.
500W in steel bar means this steel yields 500MPa strength
500W in steel bar means this steel yields 500MPa strength
steel bar
Extreme Steel bar is known as re-bar ( Reinforcing Bar), with two longitudinal and transverse ribs on the diameter of Bar.
It is a deformed round steel bar and has a diameter of 12mm.
For surface area of steel bar= pi*diameter*length For cross-sectional area of steel bar= pi (dia)^2/4
a bar\