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.
Fe 500 refers to a grade of steel reinforcement bars (rebar) used in construction, where "Fe" stands for iron and "500" indicates the minimum yield strength of the steel in megapascals (MPa). Specifically, Fe 500 bars have a yield strength of 500 MPa, making them suitable for use in structures requiring high strength and durability. They are commonly used in reinforced concrete applications to enhance the tensile strength of building materials.
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.
500
d or D is a Roman numeral equivalent to 500
D
It is: D or d = 500