Stainless Steel Etchants

There are etchants recommended for stainless steels.

Type of Stainless Steels:


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

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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