Fe 415 and Fe 500 - both are the types of reinforcement steel.
The basic difference is in the tensile strength -denoted by 415 & 500.
Fe 500 is economical in comparison with Fe 415.
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The main difference is in between grade A,B & C IS THE CARBON CONTAIN OF THE MATERIALS.
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concrete grade and strength are both revalent since if grade increase setting time will be less and curing to be done propely so that concrete strength will reach higher. If concrete grade is low curing to done longer days upto intial setting time to reach proper strength
Grade 60 has a tensile stress of 60000 psi while Grade 40 has 40000. Grade 60 steel rusts faster than grade 40. grade 60 bar can be identified by the word 60 which should have printed on that while on grade 40 no no will be printed or written and we can identify this by counting the lines on steel as well. If there are 3 lines longitudinally on the bar its is of 60 grade and if 2 lines longitudinally it will be identified as 40 grade.
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