1. compressive strength
2. ductility
3. carbon content
4. hardness
ductility
1. 80% or more iron
2. 50% or more iron
3. alloying elements like chromium, tungsten nickel and copper
4. elements like phosphorus, sulfur and silicon in varying quantities
50\% or more iron
1. made by adding carbon in steel
2. refined from cast iron
3. an alloy of iron and carbon with varying quantities of phosphorus and sulfur
4. extensively used for making cutting tools
an alloy of iron and carbon with varying quantities of phosphorus and sulfur
1. malleable iron
2. nodular iron
3. spheroidal iron
4. grey iron
malleable iron
1. which are destroyed by burning
2. which after their destruction are recycled to produce fresh steel
3. which are deoxidized in the ladle with silicon and aluminum which after their destruction are recycled to produce fresh steel which are deoxidized in the ladle with silicon and aluminum in which carbon is completely burnt
4. in which carbon is completely burnt
which are deoxidized in the ladle with silicon and aluminum
which after their destruction are recycled to produce fresh steel
which are deoxidized in the ladle with silicon and aluminum
in which carbon is completely burnt
1. amount of carbon it contains
2. the shape and distribution of the carbides in iron
3. method of fabrication
4. contents of alloying elements
the shape and distribution of the carbides in iron
1. 0.025%
2. 0.06%
3. 0.1%
4. 0.25%
0.025\%
1. 0.025%
2. 0.26%
3. 0.8%
4. 1.7%
1.7\%
1. chromium and nickel
2. sulphur, phosphorus, lead
3. vanadium, aluminum
4. tungsten, molybdenum, vanadium, chromium
chromium and nickel
1. flywheel of steam engine
2. cast iron pipes
3. cycle chains
4. gas turbine blades
gas turbine blades