A105 Forged 3000LBS steel pipe sockets/pipe coupling Standard ASME B16.11 Type Half Coupling and Full Coupling Diameter 3/4” Socket Pressure 3000LB, 6000LB, 9000LB Thread NPT, BSPP, BSPT Material ASTM A182 F316L ISO Certified manufacturer and exporter Hongxin offers 3/4” Threaded Coupling BSPP Class 3000 Stainless Steel 316L ASME B16.11 for South Africa. Forged Coupling is an important fittings that threaded or socket weld connected pipes with other pipes or fittings. It also called “socket” in some regions. Both threaded coupling and socket weld coupling are leak proof and the former is quick installation and easy usage. 3/4″ socket has two female thread ends and the ends has same diameter. If the two ends are of different sizes is called a reducing coupling or reducer.   Threaded Couplings Dimensions