The lower critical temperature is same for all steels.
Lower critical temperature for steel’s austenite-to-pearlite transformation is 1333°Fahrenheit (723°Celsius). Below this temperature, austentite doesn’t exist.
The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is
1.The unit cells Contain the smallest number of atoms which when taken together have all the properties of the crystals of the particular metal
2. The unit cells Have the same orientation and their similar faces are parallel
3. The unit cells May be defined as the smallest parallelepiped which could be transposed in three coordinate directions to build up the space lattice
Pig iron is the intermediate product extracted from iron ore in a blast furnace.
Pig iron is used as raw material in steel making.
Pig iron gets its name from the old fashioned method of casting the iron into moulds arranged in sand beds so that they could be fed from a common runner
Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?