316 stainless steel is a high carbon grade of the most commonly used austenitic class of stainless steels, with a high chromium and nickel content for superior resistance to corrosion. 316 SS has 18% chromium and 14% nickel for increased resistance to corrosion over 304 SS.  316 grade will resist scaling at temperatures up to 1600°F and is ideal in the more corrosive environments. Stucchi offers flat face, poppet interchange, ISO A and ISO B hydraulic quick couplers and check valves in 316 SS.