forged carbon steel female thread tee,nice surface,precise production,high pressure,reliable quality. Features carbon steel female thread tee:Nominal Diamater: 1/4", -4"Nominal Pressure: PN40, 64, 100, 160, 250, 320, 1500, 2000, 2500, 3000, 6000LBApplicable Medium: Water, Steam, Petroleum products ect.Materials: can be A105, 321,304.,304L,316, 316L,15CrMo, 12Cr1MoV.