500 stands for the minimum yield stress in N/mm2 . The letter D stands denotes that such bars have higher values of minimum percentage elongation. Along with this the standards have lowered the quantity of S and P values in the bar which are harmful for steels used in construction. Also the value of Carbon percentage has been lowered and the physical properties have been enhanced
Because at one time 500 was represented by I) meaning 1*500 and over time it became D
D in Roman numerals is equal to 500 at one time 500 was expressed as I) meaning 1*500 over time they were merged to today's D.
It is: D or d = 500
D
500 = D
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.
Because at one time 500 was represented by I) meaning 1*500 and over time it became D
meaning of 500 D in TMT bar
D in Roman numerals is equal to 500 at one time 500 was expressed as I) meaning 1*500 over time they were merged to today's D.
urine FE
500 miles
Fe is the chemical symbol for the element iron.
d or D is a Roman numeral equivalent to 500
500
It is: D or d = 500
D
500 = D