... ASTM A 335 seamless steel pipe with black varnished plain or beveled ends with caps 1)STD.:ASTM A335 2)Steel ... Grade.:P1,P2,P5,P9,P11,P12,P22,P91,P92 3) ... , P235GH, P265GH, 20MnNb6, 16Mo3, 8MoB5-4, 14MoV6-3, 10CrMo5-5, 13CrMo4-5, 10CrMo9-10, 11CrMo9-10, ... P690QL2, P215NL, P255QL, P265NL, 26CrMo4-2, 11MnNi5-3, 13MnNi6-3, 12Ni14, X12Ni5, X10Ni9JIS G3458: STPA12,STPA20,STPA22, ...