– Non-destructive examination (NDE) methods and symbols. I--- Welding Inspection Technology 2020 Pdf Patched
| Feature | AWS WI-I 2015 | AWS WI-I 2020 | |---------|---------------|----------------| | NDT methods | Conventional RT/UT | Phased array UT, Digital RT added | | Steel classification | Basic API/ASTM | Includes TMCP and Q&T steels | | Visual inspection tools | Traditional gauges | CAM and laser-assisted tools | | Code tables | AWS D1.1:2015 | AWS D1.1:2020 references | | Safety section | Minor updates | Full subchapter on fume extraction & PPE | i--- Welding Inspection Technology 2020 Pdf