Strands Smooth   Diameter (mm.) Resistance 3 4 5 6 7 1570 N/mm² - - - - - 1670 N/mm² - - - -   1770 N/mm² -       - 1860 N/mm²       - - Textured 3 sides   Diameter (mm.) Resistance 3 3.2 4 5 6 7 1570 N/mm² - - - - - - 1670 N/mm² - - - - -   1770 N/mm² -         - 1860 N/mm²         - - Textured 2 sides   Diameter (mm.) Resistance 3 4 5 1770 N/mm² -     1860 N/mm²