ASTM A519 Tubing – SA179 Tubes
The ASTM A519 gr 4140 Seamless Tubing manufactured under this specification is a tubular product made without a welded seam. The tubes are usually manufactured by hot working the steel. And if necessary, the ASTM A519 Grade 4140 Steel Tubing can be produced by subsequently cold finishing the hot worked product i.e. the ASTM A519 …