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Understanding The Standards For Reinforcement Steel
European standard grades for steel products follow a set naming structure. Each grade starts with a single letter, and is followed by a number.
European standard grades for steel products follow a set naming structure. Each grade starts with a single letter, and is followed by a number. The letter relates to the application and the number relates to the yield strength of the steel. Steel used for reinforcing concrete has the application letter B, and the number 500, which represents a minimum yield strength of 500MPa. The grades for reinforcement steel then have a final letter – A, B or C.
The differences between the A, B and C designations are complex and relate to structural tolerances. For reinforcement mesh products, grade B500A steel is typically used, and for rebar, B500B is used. B500C steel is seldom requested and it would always be worth checking with a structural engineer whether grade B500B could be used instead of B500C, since B500C typically has a significant cost overhead.
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