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Tham khảo tài liệu 'handbook of comparative world steel standards part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Chapter 6 Steel Forgings 268 6.1 Carbon Steel Forgings 6.1.1A Mechanical Properties of Carbon Steel Forgings for General Use Standard Designation Grade Class Type Symbol or Name Steel Number UNS Number Product Form Heat Treatment Thickness Yield Strength min Tensile Strength min Elongation min Other t mm t in. N mm2 or MPa ksi N mm2 or MPa ksi ASTM A 668 A 668M-03 JIS G 3201 1988 EN 10250-2 1999 A --- --- --- 500 20 --- --- 325 47 --- 183 HB max 90 HB min 35 J at -20 C 30 J at -20 C 27 J at -20 C 35 J at -20 C 30 J at -20 C 27 J at -20 C SF 340 A --- --- A N or NT --- --- 175 --- 340-440 --- 27 S235JRG2 1.0038 --- N 100 --- 215 --- 340 --- 24 100 t 250 --- 175 --- 340 --- 23 250 t 500 --- 165 --- 340 --- 23 S235J2G3 1.0116 --- N 100 --- 215 --- 340 --- 24 100 t 250 --- 175 --- 340 --- 23 250 t 500 --- 165 --- 340 --- 23 JIS G 3201 1988 EN 10250-2 1999 ISO 9327-2 1999 ASTM A 668 A 668M-03 SF 390 A --- --- A N or NT --- --- 195 --- 390-490 --- 25 105 HB min --- 40 J at 0 C 120-174 HB C22 1.0402 --- N or NT 100 --- 210 --- 410 --- 25 PH 26 N or QT 16 --- 265 --- 410-530 26 16 t 40 --- 255 --- 26 40 t 60 --- 245 --- 25 60 t 100 --- 215 --- 24 100 t 150 --- 200 --- 390-520 24 150 t 250 --- 200 --- 23 B --- --- A N or NT 508 20 205 30 415 60 24 JIS G 3201 1988 SF 440 A --- --- A N or NT --- --- 225 --- 440-540 --- 24 121 HB min EN 10250-2 1999 C25 1.0406 N or NT 100 --- 230 --- 440 --- 23 35 J at 23 C 100 t 250 --- 210 --- 420 --- 23 30 J at 23 C 250 t 500 --- 190 --- 400 --- 23 25 J at 23 C 500 t 1000 --- 180 --- 390 --- 22 20 J at 23 C C25E 1.1158 --- N or NT 100 --- 230 --- 440 --- 23 35 J at 23 C 100 t 250 --- 210 --- 420 --- 23 30 J at 23 C 250 t 500 --- 190 --- 400 --- 23 25 J at 23 C 500 t 1000 --- 180 --- 390 --- 22 20 J at 23 C QT 70 --- 270 --- 450 --- 25 45 J at 23 C 70 t 160 --- 220 --- 410 --- 25 38 J at 23 C 160 t 330 --- 210 --- 390 --- 24 33 J at 23 C ASTM A 668 A 668M-03 C A N or NT 203 12 230 33 455 66 23 137-183 HB 305 t 508 12 t 20 230 33 455 66 22 .