... Q235B, A105,16Mn, 316L 20#; Stainless steel; Alloy steel Forged Flange 1.ANSI FLANGESStandard: ANSI B16.5ANSI B16.47MSS SP44ANSI B16 ... : DIN2527,DIN2566,DIN2573,DIN2576,DIN2641,DIN2642, DIN2655,DIN2656,DIN2627,DIN2628,DIN2629,DIN2631 DIN2632,DIN2633,DIN2634,DIN2635,DIN2636,DIN2637 ... Plate Flanges(101),Loose Plate Flanges(102), Loose Plate With Weld-neck Flanges (104),Blank Flanges(105)PRESSURE GRADE: ...