Metallographic Etchants (Micro Etchants)

Metallographic etchants are chemicals that can reveal microstructural details that would otherwise not be evident on a mirror-polished metal sample. The etchant will selectively etch or stain microstructural features, such as grain boundary or metal phases. These features can then be studied with a microscope.

  • Adler's Reagent
  • Alpha Case, 2% HF
  • ASTM 151
  • ASTM 36 Ferric Chloride Etch
  • Barker's Reagent
  • Copper Etch
  • Ferric Chloride Etchant
  • Fry's Reagent
  • Hydrochloric Acid Solution, 5%
  • Kalling's 2 Reagent
  • Keller's Reagent
  • Kroll's Reagent
  • Marble's Reagent
  • Murakami's Reagent
  • Nital Etch (2% to 5%)
  • Oxalic Etching Solution
  • Picral Etch
  • Prior-Austenite Grain Boundaries Etch
  • Superalloy Etch (Modified Kalling's)
  • Super Picral
  • Vilella's Reagent

Weld Inspection Etchants (Macro Etchants)

Weld inspection etchants are formulated by metallurgists to show weld features, such as nugget, heat affected zone, etc. These chemicals allow the user to inspect the weld and measure the penetration depth. They are effective, easy to use, and can be stored.

  • AWS D1.2 Basic Etchant
  • AWS D1.9 Titanium Weld Etch
  • Ferric Chloride Etchant
  • Macro Fry's Reagent
  • Nital Etch
  • Stainless Steel Weld Etch

Pre-Penetrant Etchnats for Fluorescent Inspection (Special Mix)

  • S1093 Titanium Alloy Etchant
  • S1095 Carbon Steel Etchant
  • S1096 Aluminum Alloys Etchant
  • S1098 Stainless Steel Etchant
  • GE Class B
  • GE Class C, Schantz Reagent
  • GE Class E
  • GE Class F
  • GE Class G, IAE Task 70-11-39-100-501, Cold Ferric Chloride Local Etch Solution