Electrowelded straight-seam high-strength pipe for structural use

Abstract

Technical Specifications TU 1381-068-00186654–2016 have been developed for large-diameter electrowelded straight-seam high-strength pipe used in special-purpose structures, including those that operate in severe climatic conditions. Pipe made from thick sheet with a low impurity content by thermomechanical rolling with accelerated cooling is characterized by low-temperature strength, crack resistance, thermal stability, and resistance to fatigue-crack propagation. Such pipe resists mechanical aging and withstands seismic shocks. Research data permit the formulation of Technical Specifications TU 1381-068-00186654–2016 such that the special-purpose structures made from electrowelded straight-seam pipe will operate reliably.