... thick steel plate1. High purity of steel quality:[p]≤100ppm,[s]≤30ppm,[o]≤20ppm,[n]60ppm,[h]≤2ppm,Folder with ... ,65,70)A299A517GrQ(A,B,E,F, H , P,S,)EN10028-3:2003ASTM A516/A516M-06ASTM A299/A299M-03ASTM A517 ... -06Ship, platform steelA514GrQ(A,B,E,F, H , P,S,)DH36,EH36,FH36ASTM A514/A514M-05GB/T712-2000, AFS, ... control 1. High purity of steel quality:[p]≤0.010%,[s]≤0.005%,[o]≤15ppm,[n]≤50ppm,[h]≤2ppm ...