P S 65Mn 1066 0.62-0.70 0.17- 0.37 0.90- 1.20 ≤0.25 0.035 0.035 302 55Si2Mn 9255 55Si7 0.52-0.60 1.50- 2.00 0.60- 0.90 ≤0.35 0.035 0.035 302 60Si2Mn 9260 SUP6 60Si7 0.56-0.64 1.50- 2.00 0.60- 0.90 ≤0.35 0.035 0.035 321 60Si2MnA 9260 SUP6 60Si7 0.56-0.64 1.60- 2.00 0.60- 0.90 ≤0.35 0.03 0.03 321 55CrMnA 5155 SSUP9 55Cr3 0.52-0.60 0.17- 0.37 0.65- 0.95 0.65- 0.95 0.03 0.03 321 60CrMnA 5160 SUP9A 0.5