... ,BSPT,BSPP material:S.S,C.S pressure:3000/6000p Features for forged steel pipe fittings,socket weld tee:1)Nominal Diameter ... : 1/8"-- 4" 2)Nominal Pressure: PN40, 64, 100, 160 ... steel A105, 321, 304, 304L, 316, 316L, 15CrMo, 12Cr1MoV5)Mode of connection: socket weld connection