Spectrographic Ltd

Metallurgical Etchants

£63
Image Part Number Price Variant Purchase Quantity
AWS D1.2 Basic Etchant set - SODIUM HYDROXIDE 20% SOLUTION 1LT,  NITRIC ACID 10% AQUEOUS SOLUTION 1LT,  WATER DEIONISED 5LT 2210102 £63.00 AWS D1.2 Basic Etchant set - SODIUM HYDROXIDE 20% SOLUTION 1LT, NITRIC ACID 10% AQUEOUS SOLUTION 1LT, WATER DEIONISED 5LT
Acidified Ferric chloride 100ml 2222103 £28.00 Acidified Ferric chloride 100ml
Adlers Reagent 150ml - for etching stainless steel and hastalloy superalloys 2250001 £44.00 Adlers Reagent 150ml - for etching stainless steel and hastalloy superalloys
Adlers Reagent 500ml -for etching stainless steel and hastalloy superalloys 2250003 £100.00 Adlers Reagent 500ml -for etching stainless steel and hastalloy superalloys
Aqua Regia Etching solution 500ml 2250020 £51.00 Aqua Regia Etching solution 500ml
Barker's Etch 500ml - is widely used in revealing grain structure of Al alloys under polarized light 2210912 £66.00 Barker's Etch 500ml - is widely used in revealing grain structure of Al alloys under polarized light
Beraha solution 500ml 2210221 £72.00 Beraha solution 500ml
Buffer pH9 1ltr 2271009 £20.00 Buffer pH9 1ltr
Buffer pH11 1ltr 2271011 £20.00 Buffer pH11 1ltr
Copper sulphate HCl Etchant 1ltr 2241010 £113.00 Copper sulphate HCl Etchant 1ltr
Ethanol absolute 1ltr - Reagent in synthetic organic chemistry and chromatography. Industrial and laboratory organic solvent 2213004 £120.00 Ethanol absolute 1ltr - Reagent in synthetic organic chemistry and chromatography. Industrial and laboratory organic solvent
Frys Etch 100ml for micro-etching precipitation hardening stainless steels (PH grade), martensitic stainless steels, and some superalloys. It is also an effective stain for weld 2217007 £52.00 Frys Etch 100ml for micro-etching precipitation hardening stainless steels (PH grade), martensitic stainless steels, and some superalloys. It is also an effective stain for weld
Frys Etch 500ml for micro-etching precipitation hardening stainless steels (PH grade), martensitic stainless steels, and some superalloys. It is also an effective stain for weld 2217008 £85.00 Frys Etch 500ml for micro-etching precipitation hardening stainless steels (PH grade), martensitic stainless steels, and some superalloys. It is also an effective stain for weld
Hydrochloric acid 36% 500ml 2214063 £26.00 Hydrochloric acid 36% 500ml
Hydrochloric acid 50% 500ml 2214055 £22.00 Hydrochloric acid 50% 500ml
Isopropanol 99% 25Ltr Drum 2291071 £136.00 Isopropanol 99% 25Ltr Drum
Kallings No 2 150ml - for etching duplex and 400 series stainless steel and Ni-Cu alloys and superalloys 2260001 £45.00 Kallings No 2 150ml - for etching duplex and 400 series stainless steel and Ni-Cu alloys and superalloys
Kallings No 2 500ml - for etching duplex and 400 series stainless steel and Ni-Cu alloys and superalloys 2260003 £79.00 Kallings No 2 500ml - for etching duplex and 400 series stainless steel and Ni-Cu alloys and superalloys
Kellers 500ml - for etching of titanium and aluminium alloys 2270003 £72.00 Kellers 500ml - for etching of titanium and aluminium alloys
Klemm’s Reagent 100ml - reveals the general structure of pure Copper and Copper alloys, and darkens the beta phase in alpha-beta brass in Copper alloys.  It also colours ferrite in lower alloy grade Tool Steels. 2218010 £48.00 Klemm’s Reagent 100ml - reveals the general structure of pure Copper and Copper alloys, and darkens the beta phase in alpha-beta brass in Copper alloys. It also colours ferrite in lower alloy grade Tool Steels.
Krolls 250ML - Destructive tests on welds in metallic materials — Etchants for macroscopic and microscopic examination. As a micro-etch for Aluminium & Aluminium Alloy products, use 3μm diamond or finer and swab or immerse sample for less than 5 seconds. 2211002 £58.00 Krolls 250ML - Destructive tests on welds in metallic materials — Etchants for macroscopic and microscopic examination. As a micro-etch for Aluminium & Aluminium Alloy products, use 3μm diamond or finer and swab or immerse sample for less than 5 seconds.
Krolls 500ML - Destructive tests on welds in metallic materials — Etchants for macroscopic and microscopic examination. As a micro-etch for Aluminium & Aluminium Alloy products, use 3μm diamond or finer and swab or immerse sample for less than 5 seconds. 2211003 £69.00 Krolls 500ML - Destructive tests on welds in metallic materials — Etchants for macroscopic and microscopic examination. As a micro-etch for Aluminium & Aluminium Alloy products, use 3μm diamond or finer and swab or immerse sample for less than 5 seconds.
Marbles reagent 0.5ltr micro-etching 300 series stainless steels, nickel, and cobalt-based superalloys. The etchant will darken austenitic grains, attack sigma phases, and show grain flow 2215003 £41.00 Marbles reagent 0.5ltr micro-etching 300 series stainless steels, nickel, and cobalt-based superalloys. The etchant will darken austenitic grains, attack sigma phases, and show grain flow
Murakami's etchant 150ml - For hard metals, molybdenum alloys, chromium alloys, tungsten, tungsten alloys, for visualization of carbides, sigma phase, delta ferrite and austenite 2251001 £40.00 Murakami's etchant 150ml - For hard metals, molybdenum alloys, chromium alloys, tungsten, tungsten alloys, for visualization of carbides, sigma phase, delta ferrite and austenite
Nimonic Acid 500ml 2218003 £56.00 Nimonic Acid 500ml
Nitric Acid 60% solution 25ltr £142.00 Nitric Acid 60% solution 25ltr
Nital 2% in Denatured Ethanol (IMS) 500c - - for etching Fe based, Carbon steel and alloys and cast iron 2210212 £29.00 Nital 2% in Denatured Ethanol (IMS) 500c - - for etching Fe based, Carbon steel and alloys and cast iron
Nital 2% in Denature Ethanol 100ml micro-etching mild steel, carbon steel, low alloy steel, cast iron, and some tool steel. 2210217 £24.00 Nital 2% in Denature Ethanol 100ml micro-etching mild steel, carbon steel, low alloy steel, cast iron, and some tool steel.
Nital 2% in Denature Ethanol 2.5ltr - for etching Fe based, Carbon steel and alloys and cast iron 2210215 £58.00 Nital 2% in Denature Ethanol 2.5ltr - for etching Fe based, Carbon steel and alloys and cast iron
Nital Etch 5% 250cc is a popular micro- and macro-etchant for etching mild steel, carbon steel, low alloy steel, cast iron and tool steel. 2210142 £24.00 Nital Etch 5% 250cc is a popular micro- and macro-etchant for etching mild steel, carbon steel, low alloy steel, cast iron and tool steel.
Nital Etch 10% 250cc 2210152 £24.00 Nital Etch 10% 250cc
Nitric acid 10% 500ml 2219803 £20.00 Nitric acid 10% 500ml
Nital Weld Etch 10% 2.5ltr  -This product is a good general purpose etchant for Carbon & Low Alloy Steel welds; it reveals ferrite boundaries & differentiates ferrite from martensite. 2210155 £55.00 Nital Weld Etch 10% 2.5ltr -This product is a good general purpose etchant for Carbon & Low Alloy Steel welds; it reveals ferrite boundaries & differentiates ferrite from martensite.
Oberhoffer etching solution 1ltr - macro etchant for unalloyed and alloyed steels in metallography to visualize phosphorus accumulations (fibre flow). 2291070 £121.00 Oberhoffer etching solution 1ltr - macro etchant for unalloyed and alloyed steels in metallography to visualize phosphorus accumulations (fibre flow).
Oxalic Acid 6% 100ml 2212054 £28.00 Oxalic Acid 6% 100ml
Oxalic Acid 10% 100ml  most popular electrolytic etching solution for revealing the microstructure of austenitic stainless steels (300 series) 2216007 £31.00 Oxalic Acid 10% 100ml most popular electrolytic etching solution for revealing the microstructure of austenitic stainless steels (300 series)
Potassium Ferricyanide 100g - This solution reveals the general structure of pure Copper and Copper alloys £32.00 Potassium Ferricyanide 100g - This solution reveals the general structure of pure Copper and Copper alloys
Picral 2% 100ml for the etching of ferrous materials containing peartlite, martensite and bainite. Also for magnesium alloys, cast iron and highly alloyed stainless steel 2280017 £37.00 Picral 2% 100ml for the etching of ferrous materials containing peartlite, martensite and bainite. Also for magnesium alloys, cast iron and highly alloyed stainless steel
Picral 2% 0.5ltr - for the etching of ferrous materials containing peartlite, martensite and bainite. Also for magnesium alloys, cast iron and highly alloyed stainless steel. 2280013 £50.00 Picral 2% 0.5ltr - for the etching of ferrous materials containing peartlite, martensite and bainite. Also for magnesium alloys, cast iron and highly alloyed stainless steel.
Picral 4% 0.5ltr - This solution reveals the general structure of Iron + Carbon and Iron 2280015 £54.00 Picral 4% 0.5ltr - This solution reveals the general structure of Iron + Carbon and Iron
Sodium Hydroxide 20% 500ml 2221005 £23.00 Sodium Hydroxide 20% 500ml
Vilellas Reagent 0.5ltr - for etching to reveal tempered martensite in treated iron and steel 2290003 £50.00 Vilellas Reagent 0.5ltr - for etching to reveal tempered martensite in treated iron and steel
Waterless Kallings 500ml - this solution reveals the general structure of;Iron Ni-Cu alloys and Superalloys.Iron +(15–30%)Chromium +(6–40%)Nickel +(<5%) other elements (Series 300)+(12–30%) Chromium +(<6%) Nickel (400 Series) 2261003 £74.00 Waterless Kallings 500ml - this solution reveals the general structure of;Iron Ni-Cu alloys and Superalloys.Iron +(15–30%)Chromium +(6–40%)Nickel +(<5%) other elements (Series 300)+(12–30%) Chromium +(<6%) Nickel (400 Series)
Weck’s Reagent for Aluminium 250ml - for use in revealing the general structure of Aluminium and its alloys. It may be considered as an alternative to Keller’s Reagent. 2291001 £55.00 Weck’s Reagent for Aluminium 250ml - for use in revealing the general structure of Aluminium and its alloys. It may be considered as an alternative to Keller’s Reagent.

Spectrographic Ltd

Metallurgical Etchants

£63

We can get our chemists to mix any solution that you may require for etching.  If what you are looking for is not listed here, then please get in touch as we can supply most etching solutions but as there are so many, it may not be listed as yet.

  • We can get our chemists to mix any solution that you may require for etching. If what you are looking for is not listed here, then please get in touch as we can supply most etching solutions but as there are so many, it may not be listed as yet. All SDS sheets can be provided

     How to etch

    ✅ Ensure your initial sample is polished to a smooth surface without deformations or scratches.
    ✅ Select the correct etching fluid for the material
    ✅In certain cases it is possible to enhance the contrast with light microscope filters in addition to the chemical etching process. This is referred to as "optical etching."
    ✅In the case of electrolytic etching, a suitable electrolyte, voltage, and sample exposure time should be selected.

     

     

     

     

     

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