Grade 2 vs Grade 5 titanium - and why your eyes can't tell
The PMI signature that separates the $9.80/kg grade from the $14.20/kg one. Both look identical.
Grades & Assay - Featured
304 vs 316: the $1,200/tonne mistake we see weekly Three visual tells that get loads mis-graded - and the magnet test that misses two of the most common ones. Read the article The PMI signature that separates the $9.80/kg grade from the $14.20/kg one. Both look identical.