Chinese standard Grade Br Hcb Hcj (BH)max mT KG KA/m KOe KA/m KOe KJ/m3 MGOe Y10T 200-235 2.0-2.35 125-160 1.57-2.01 210-280 2.64-3.52 6.5-9.5 0.8-1.2 Y20 320-380 3.2-3.8 135-190 1.70-2.38 140-195 1.76-2.45 18.0-22.0 2.3-2.8 Y22H 310-360 3.1-3.6 220-250 2.77-3.14 280-320 3.52-4.02 20.0-24.0 2.5-3.2 Y23 320-370 3.2-3.7 170-190 2.14-2.38 190-230 2.39-2.89 20.0-25.5 2.5-3.2 Y25 360-400 3.6-4.0 135-170 1.70-2.14 140-200 1.76-2.51 22.5-28.0 2.8-3.5 Y26H 360-390 3.6-3.9 220-250 2.77-3.14 225-255 2.83-3.21 23.0-28.0 2.9-3.5 Y27H 370-400 3.7-4.0 205-250 2.58-3.14 210-255 2.64-3.21 25.0-29.0 3.1-3.7 Y30 370-400 3.7-4.0 175-210 2.2-2.64 180-220 2.64-2.77 26.0-30.0 3.3-3.8 Y30BH 380-390 3.8-3.9 223-235 2.80-2.95 231-245 2.90-3.08 27.0-30.0 3.4-3.7 Y30-1 360-400 3.6-4.0 135-170 1.70-2.14 140-200 1.76-2.51 22.5-28.0 2.8-3.5 Y10T 380-400 3.8-4.0 230-275 2.89-3.46 235-290 2.95-3.65 27.0-32.0 3.4-4.0 Y20-2 395-415 3.95-4.15 275-300 3.46-3.77 310-335 3.90-4.21 28.5-32.5 3.5-4.0 Y32 400-420 4.0-4.2 160-190 2.01-2.38 165-195 2.07-2.45 30.0-33.5 3.8-4.2 Y33 410-430 4.1-4.3 220-250 2.77-314 225-255 2.83-3.21 31.5-35.0 4.0-4.4 Y35 400-410 4.00-4.10 175-195 2.20-2.45 180-200 2.26-2.51 30.0-32.0 3.8-4.0