There are various grades of steel, but the main one is SS316L, noticed you said you bought some wire on Amazon, hope it wasn't from Crazy Wire, they are the same company as vape Atomizer Mesh (VAM) and are not a vape company but a wire company and some of their wires are not really good for vaping , the best wires for vaping are from Stealth Vapes, they test their wires.
Yes I bought mine from The Crazy Wire Company. I paid £17.50 for the 'Big 5 Starter Pack'.Someone in this thread recommended them to me.
A rare snow leopard seen by some holiday skiers:
Sod the blood pressure !