ASTM A335 Gr.P11 seamless pipe 1. Size: OD22mm-610mm;WT2-30MM 2. Competitive ... :ASTM A335/ASME SA335M2. Steel grade: P1,P2,P5,P9,P11,P12,P22,P913. Specification:19mm-508mm,wall thickness:2mm to ... Grade P12min. 41520530A 335 Grade P22min. 41520530 ASTM A335 Gr.P11 seamless pipe