Generally, it is impossible to identify the chemical composition of a stainless steel by visual check.
So, how to test if your stainless steel is grade 304 or 316 wire ?
For Stainless Steel Wire & Mesh we use a hand held analyser to confirm the chemical composition. This instrument is a non-destructive tester which has a 98.7% alloy grade identification accuracy.
We are also able to supply a Certificate for your stainless steel wire & mesh, if required.