STAINLESS STEEL ETCHANTS
Please use the table below to select the correct etchant for your stainless steel.
| Type of Stainless Steel: | Etchant to Use: |
| 301, 302 | Fry’s |
| 303, 304 | Fry’s or Vilella’s |
| 316, 317, 321 | Marble’s |
| 403, 405, 410, 416, 418, 420, 422, 430, 440 | Vilella’s |
| 13-8 PH, 15-5 PH, 17-4 PH | Fry’s |
| 17-22, 17-22A | Vilella’s |
| 21-6-9 | Fry’s |
| A286 | Fry’s |
| Duplex 2205, maraging steels | S1098 Schantz |
| Electrolytic etching of 300 series | Oxalic etching solution |
| Macro-etching stainless steel | Stainless steel weld etch |
| Prior-austenite grains | Prior-austenite grain boundaries etch |
| Others | See this list |
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