... ,8163,18248; ASTM A53,A106,A179,A192,A213,A335,A519;API 5L,5CT,5D; NACE MR0175; DIN1629,2448,10210,10297,17175Steel Grade ... ,1020,1045,4140,P11,P12,P22,,P91,S355J2H,St52,10CrMo910 B, X42, X46,X52, X60, X65, J/K55,N/L80-1 ... .6 √√√√√√√√√√√406.4 √√√√√√√√√√√457.2 √√√√√√√√√√508 √√√√√√√√√√558.9 √√√√√√√√√√609.6 √√√√√√√√√√ Seamless Steel Pipe