What is Rebar?
Steel reinforcement bars or rebars are used to improve the tensile strength of the concrete, since concrete is very weak in tension, but is strong in compression. Steel is only used as rebar because of elongation of steel due to high temperatures (thermal expansion coefficient) nearly equal to that of concrete.
Grades of Rebar in Different Codes
Grades of Rebar in Different Codes
| American Standard (ASTM A 615) | Euro Standard(DIN 488) | British Standard BS4449: 1997 | Indian Standard (IS: 1786) |
| Grade 75 (520) | BST 500 S | GR 460 A | Grade Fe – 415, Fe – 500, Fe – 500D |
| Grade 80 (550) | BST 500 M | GR 460 B | Grade Fe – 550 |
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