... steel: Q235B, A105,16Mn, 316L 20#; Stainless steel; Alloy steel pad flange Flanges of welding neck, socket welding, threaded, blind, slip ... up to 450 lbs are in accordance with BS10 Table D & Table E, BS Table F & Table H, BS Table J ... 30days for 1000tons10.Supply Capacity: 10000tons per year High quality pad flange