... CLASS 2500 European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN ... : A105Alloy steel: A182 F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22 Stainless steel: A182 ... 8 High performance steel: A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70Low-temperature steel: ASTM/ASME ... FF), Raised Face(RF), Tongue(T), Groove(G), Female(F), Male(M), Ring Joints Face(RJ)European Series: Type ...