... :[p]≤100ppm,[s]≤30ppm,[o]≤20ppm,[n]60ppm,[h]≤2ppm,Folder with low impurity content.2.Good ... thickness of the structural steelQ345A(B,C,D,E)S355N,S355NLA572Gr42(50)16MnD20,50,4520MnSiGB/T1591-2008EN10025 ... P355NL2P355NL2, A516Gr55(60,65,70)A299A517GrQ(A,B,E,F, H , P,S,)EN10028-3:2003ASTM A516/A516M-06ASTM ... 03ASTM A517/A517M-06Ship, platform steelA514GrQ(A,B,E,F, H , P,S,)DH36,EH36,FH36ASTM A514/A514M- ...