... :carbon steel,stainless steel and alloy steelStandard:ANSI,ASME,DIN,Pipe flange is the the connector used to connect pipe to tees, elbows, valves ... --50 We manufacture all kinds of pipe flange such as forged flange,blind flange and welded neck flange and more as ... ,SW flange and Threaded flangeSize (DN15~DN3000)Pressure class150-2500lbsMaterial Forged steel, A694 F42, F46, F48, F50, F52, F56,F60,F65,F70 ...