ASTM A234 WPB Fittings
The ASTM A234 wpb elbow and other fittings belong to the ASTM A234 specification which covers the moderate and high temperature services. The elbows are used to change the flow direction in a pipeline. ... A420 WPL3 / ASTM A234 WPB Pipe Fittings Manufacturers . ASTM A234 WPB Carbon Steel Stub Ends Materials: Alloy Steel: A 106 Grade B Seamless