Half Coupling Body Material 304 Stainless Steel Class 3000 Pipe Size 1-1/2 In. Connection Type Socket Weld Max Pressure 3000 psi Max Steam Pressure 2810 psi@350 Degrees F Outside Dia 2-35/64 In. Standards Threads conform to ASME B1.20.1 NPT Materials conform to ASTM A182 Dimension conform to ASME B16.11