ASME Flanges ANSI B16.9 1.Size:1/16"-160" 2.Standard:ASME/ ... /DIN/JIS/BS etc Specifications1. ASME Flanges ANSI B16.9 2. Material:Carbon Steel Material: A105 A105N A106 Q235 ... -40K and so on .7. Sealing surface : FF ,RF, LJ, FM ,RTJ,RJ ,MALE ,FEMALE and so on .8. Used ... chemical,power,gas,water,linepipe, heat exchanger,shipbuilding,construction,etc.9. Tolerance:not less than +_8% of normal wall thickness ...