Nominal Size L l1 l2 l3 l4 H H1 H2 R R1 R2 310310708688105310260639541130329231 360360760740130360260640543130330233 Nominal R3R4 R5 T DWelding leglengthaSWLb CalculatedWeight Size Z1 (KN)ï¼?tï¼? ï¼?kgï¼? 310 142140 1983238 8 471 48 257 360 140138 1963440 8,5 687 70 286 a The welding method may be changed based on the same welding volume /strength. b The SWLs shown are for reference only.These are based on the loading as mentioned in Annex A â??SWLâ?�may be adjusted depending on the actual loading conditionsï¼?and the actual marking shall be agreed between the user and the manufacturer c The calculated weight is for reference only.