... sockets / merchant coupling MaterialCarbon steel,Stainless steel and AlloyStandardANSI B1.20.1, ASTM A733/ A53 /A106, ST37-2EN10241, BS1387, ISO7 ... onMechanical PropertiesTensile Strength ≥ 320N/mm2 Yield Strength≥ 195N/mm2Elongation ≥20%Hydraulic TestWorking Pressure: Max 1.5MPaTest Pressure: Max 2. ... .615203/4"31.83631.817251"39.54339.5203211/4"48.34848.3224011/2"54.54854.522502"66.25668266521/2 ...