street elbow 90 degree,2 inch male x female npt thread sus304 derpipe the 90-degree elbow cast pipe fitting with male and female national pipe taper (npt) threads for changing flow direction between two pipes.this elbow is made of stainless steel 304, which is higher strength and more corrosion resistant than stainless steel 302. class 150 is a standard relating to tolerance, construction, dimension, and wall thickness, but it is not a direct measurement of maximum working pressure.<br>pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. when purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).<br><br>product features:<br>1.widely use: pipe threads are common to common pipes and easy to replace and install.<br> 2.corrosion resistance: 304 stainless steel, nickel and chromium combined, corrosion resistance.<br> 3.hardness: 304 stainless steel is twice as hard as copper and ten times as hard as aluminum.<br> 4.rust - free: even in humid environment, it still has strong oxidation resistance and does not corrode.<br> 5.shine as new: the surface of 304 stainless steel is silvery white and shiny as new in 10 years and 20 years.<br> 6.high and low temperature resistance: stainless steel can withstand high temperatures as well as low temperatures.<br> 7.durable: it is a good choice for laying pipes in home buildings, and it is not easy to damage after long-term use.<br>