... 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: ... 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/ ... ), Raised Face(RF), Tongue(T), Groove(G), Female(F), Male(M), Ring Joints Face(RJ)European Series: Type ... C(Tongue), Type D(Groove), Type E(Spigot), Type F(Recess), Type G(O-Ring Spigot), Type H (O ...