When tested in accordnace with paragraph 5.2 of SANS 920.2005 steel reinforcement bars will comply with the appropriate values.
Type of steel
Nominal size diameter mm
Characteristic strength MPa min
Ultimate tensile strength MPa min
Elongation % min
Guage length mm
Mild
All diameters
250
15% higher than the actual yield or than the 0.20% proof stress as relevant but shall not exceed 400MPa
22%
5.65A*
High yield
All diameters
450
15% higher than the actual yield or than the 0.20% proof stress as relevant
14%
5.65A*
* A - Equivalent cross sectional area.