Manufacturing & troubleshooting
Weld seam quality inspection
Plan seam verification using specified methods, qualified personnel, calibrated equipment, and traceable acceptance criteria.
Tube-mill investigation must follow site lockout/tagout, guarding, stored-energy, electrical, pinch-point, hot-work, and qualified-person procedures. Never inspect, measure, or adjust moving equipment.
No single observation proves quality
Visual appearance, monitoring signals, destructive tests, and nondestructive methods each answer different questions. Apply only methods and acceptance criteria required by the governing standard, purchase order, drawing, or qualified procedure.
Sources and limitations
- ASTM E273 — Standard Practice for Ultrasonic Testing of the Weld Zone of Welded Pipe and Tubing — ASTM International. Referenced practice for ultrasonic examination of the weld zone, where specified by the order.
- ASTM E213 — Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing — ASTM International. Referenced practice for ultrasonic examination of pipe and tubing bodies, where specified by the order.
- Evident application note — ERW Pipe Weld Tracking Using Phased Array — Evident (Olympus IMS). Inspection equipment manufacturer's published material on inline nondestructive examination and weld tracking of ERW tube.
- LAP CONTOUR CHECK laser measurement systems for rolled long products — LAP GmbH Laser Applikationen. Measurement equipment manufacturer's published material on non-contact laser dimensional measurement of tube and long products.
These sources inform the qualitative guidance on this page. This publication does not reproduce their text, tables, numerical settings, or acceptance criteria. Normative requirements come only from the purchased current edition of the governing standard and your supplier agreement.