About this document
Hook Cracks in ERW Line Pipe Steel by Elias Kapa is a document available to read on EtoBox.
This document discusses hook cracks, a defect observed in electric resistance welded line pipe steel. Hook cracks are small cracks that follow the weld flow lines and can open at the pipe surface if severe. The cracks are commonly associated with non-metallic inclusions like sulfides and oxides. Samples containing hook cracks from a pipe factory were examined. Scanning electron microscope examination revealed the cracks were associated with small Al2O3, CaO, CaS, and MgO inclusions. The cracks can be elimin
- Author
- Elias Kapa
- Language
- EN