Q. Low sulphur and chlorine penetrant materials would be used for testing: (Solved)
1. Aluminium, steel and plastics
2. Tool steels, chrome vanadium steel and ferritic stainless steels
3. Austenitic stainless steels, nickel alloys and titanium
4. Magnetic materials
- c. Austenitic stainless steels, nickel alloys and titanium