Description Overview Listing includes multiple rosette coils on cardboard tubes and Z4 coils. Specifications 1.35 mm diameter, +0.02/-0.03 mm tolerance, 1650 – 1850 N/mm2 tensile strength, 500 kg rosette coil on cardboard tube. 2.38 mm diameter, +0.02/-0.03 mm tolerance, 1650 – 1850 N/mm2 tensile strength, 800 kg rosette coil on cardboard tube. 5.00 mm diameter, +/-0.35 mm tolerance, class SL, 1260-1450 N/mm2 tensile strength, Z4 coil up to 1200 kg. 5.00 mm diameter, +/-0.35 mm tolerance, class SM, 1460-1650 N/mm2 tensile strength, Z4 coil up to 1200 kg. Standard: EN 10270-1