... ASTM A234 WPB Special design available. 1) Types: Seamless elbow2) Size: 1 1/4"3) Wall Thickness: STD4) ... -5, 13CrMo4-5, 10CrMo9-10 X11CrMo5 X11CrMo9-1 X10CrMoVNb9-1; X2CrNi18-9, X2CrNi19-11, X2CrNiN18-10, X5CrNi18 ... L360QB, L415NB, L415QB, L450QB; P355N, P355NH, P355NL 1;StandardASME B16.9, ASME B16.49, ASME B16.25; ... , GOST 17379; AFNOR NF A 49-289; AFNOR NF A 170-1 ~ AFNOR NF A 170-4; ISO3419, ISO5251 ...