US National Transportation Safety Board investigators have initially found longitudinal weld variations in pipe recovered following the Sept. 9 explosion on a San Bruno, Calif., natural gas gathering ...

Proper training and certification for High Density Polyethylene (HDPE) pipe welding can be the stepping stone to a more sustainable and better quality pipeline networks "Just as you would not let ...

For some materials and material combinations the use of fusion welding is not practicable. Intermetallics may be formed at the joint interface or cracking may occur at or near the interface, which ...