Question: what is wpb in astm a234?
Answer: ASTM A234 WPB Pipe Fittings means that the pipe fitting with ASTM A234 WPB material and is used for the system of pressure piping of high or moderate temperature services. ... WPB is a steel grade in which W stands for weldable, B is grading B and P stands for pressure. Thus it is referring minimum yield strength.