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A B C D E F G H I J K L M N O
HB HRB HV
301 301 ≤0.15 16.0~18.0 6.00~8.00 - - S ≥205 ≥520 ≥40 ≤207 ≤95 ≤218
301L 301L ≤0.030 16.0~18.0 6.00~8.00 - N≤0.20 S ≥215 ≥550 ≥45 ≤187 ≤90 ≤200
304 304 ≤0.08 18.0~20.0 8.00~10.50 - - S ≥205 ≥520 ≥40 ≤187 ≤90 ≤200
304J1 304Cu 0.02~0.05 16.5~17.1 7.5~7.9 - Cu1.9~2.2 S ≥