Generally, ASME B16.9 pipe fittings shall be marked to show the following details: “trademark + material grade + wall thickness + size + heat number”. For example, “M ASTM A234 WP5 SCH80 6″ 385“. When steel stamps are used, care shall be taken so that the marking is not deep ...
A 3R butt weld elbow has a bending radius that is 3 times the nominal pipe size. A 3R elbow is smoother than SR or LR fitting. Types of Elbows based on Connection with Pipe As per the connection with pipe, elbows could be classified as Butt Welded Elbow, Socket Welded Elbow and ...
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