Output of ROUNDBY, English version (option "final area assigned") ================================================================= release 3.7 (phi = relief angle) R O U N D B Y D E R I V A T I O N F O R A R E A 200 The IJKL Iron & Steel Co Ltd Number of stands 8 Initial section is a round from stand 10 Entry section area 1067 mm^2 Entry section speed 5.205 m/s Entry section temperature 1087 øC area at stand 18 assigned Final speed 27.8 m/s Final temperature 1178 øC Theoretical mill throughput 150.0 t/h Filename: area200.rdb Rolled stock: carbon steel with C = 1 ; Mn = 1 ; Cr = 1 [%] The values of lamk (elongation coefficient between two consecutive definite passes) are shown at each pair of stands (bottom right). All together they are: 1.61187 1.549875 1.490265 1.432947 Design parameters: zlk = 1.04 and initial lamk = 1.676485 - round shape factor RSF = .91 - RPF = 1 - STH on FINAL REPORT 11 OV b1t h1t b1r h1r r maxw gap dnom dwor [mm] 56.4 20.1 48.6 20.1 44.5 51.1 4 400 386.3 cE3 area slip speed revs temp K 26 P 52 M 2477 N 123 752.4 1.042 7381 350 1087 251 508 24288 890 R% 29.48 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 15.1 HSC: 60; KSC: 1; span: 1200 mm possible compound stress in rolls: 27 N/mm^2, or 2.7 kg/mm^2 12 RD drn h1r b1r maxw gap dnom dwor [mm] 29.0 30.2 26.6 30.2 4 400 376.6 phi [degrees] = 25 cE3 area slip speed revs temp K 20 P 22 M 1084 N 113 661.9 1.014 8390 419 1097 196 212 10628 467 R% 12.03 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 18.0 lamk = 1.61187 HSC: 60; KSC: 1; span: 1200 mm possible compound stress in rolls: 12 N/mm^2, or 1.2 kg/mm^2 13 OV b1t h1t b1r h1r r maxw gap dnom dwor [mm] 42.7 16.7 37.8 16.7 31.5 39.3 3 350 338.4 cE3 area slip speed revs temp K 25 P 32 M 1230 N 68 480.2 1.039 11565 628 1111 247 314 12064 793 R% 27.45 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 13.7 HSC: 70; KSC: 2; span: 1200 mm possible compound stress in rolls: 24 N/mm^2, or 2.5 kg/mm^2 14 RD drn h1r b1r maxw gap dnom dwor [mm] 23.3 24.3 21.3 24.8 2 350 330 phi [degrees] = 25 cE3 area slip speed revs temp K 19 P 13 M 529 N 55 427.1 1.014 13004 742 1121 189 130 5190 403 R% 11.06 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 16.5 lamk = 1.549875 HSC: 70; KSC: 2; span: 1200 mm possible compound stress in rolls: 11 N/mm^2, or 1.1 kg/mm^2 15 OV b1t h1t b1r h1r r maxw gap dnom dwor [mm] 35.4 13.6 31.1 13.6 26.5 33.1 2 350 340 cE3 area slip speed revs temp K 26 P 24 M 823 N 36 321.7 1.037 17261 935 1133 259 237 8067 789 R% 24.66 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 12.2 HSC: 70; KSC: 2; span: 1200 mm possible compound stress in rolls: 18 N/mm^2, or 1.8 kg/mm^2 16 RD drn h1r b1r maxw gap dnom dwor [mm] 19.1 19.9 17.5 20.1 2 350 334 phi [degrees] = 25 cE3 area slip speed revs temp K 20 P 10 M 374 N 19 286.6 1.014 19379 1093 1142 193 100 3664 419 R% 10.93 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 14.9 lamk = 1.490265 HSC: 70; KSC: 2; span: 1200 mm possible compound stress in rolls: 8 N/mm^2, or .8 kg/mm^2 17 OV b1t h1t b1r h1r r maxw gap dnom dwor [mm] 32.0 11.0 25.9 11.0 26.0 29.3 2 350 342 cE3 area slip speed revs temp K 27 P 19 M 570 N -6 227.3 1.035 24437 1318 1154 267 181 5587 771 R% 20.70 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 11.1 HSC: 70; KSC: 2; span: 1200 mm possible compound stress in rolls: 13 N/mm^2, or 1.4 kg/mm^2 18 RD drn h1r b1r maxw gap dnom dwor [mm] 16.0 16.6 14.7 16.7 2 350 336.9 phi [degrees] = 25 cE3 area slip speed revs temp K 20 P 8 M 296 N -27 200.0 1.013 27770 1552 1162 199 83 2902 472 R% 12.00 mm^2 mm/s rpm øC N/mm^2 kN N m kW bite angle [degrees] = 13.5 lamk = 1.432947 HSC: 70; KSC: 2; span: 1200 mm possible compound stress in rolls: 6 N/mm^2, or .6 kg/mm^2 DATE (MM-DD-YY): 04-25-2002 HOUR: 00:54:01 Processing time: < 1 s