1.Threaded Flanges 2.Standard:A105 ANSI B16 ... HS: 7304199000 1.Material: carbon steel, stainless steel and alloy steelCarbon steel: 10#, 20#, A3, 20G ... .16Mn, ASTM A234, ASTM A105 and moreStainless steel: ASTMA403, 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, ... 12Cr1SMoVK, 10CrMo910, 15CrMo, 12Cr2Mo1, A335P22, St45.8 and A10bB2.Use: applied to the petroleum, chemical industry electricity ...