Ardrox 800-3
Description
Ardrox 800-3
Ardrox 800-3 is a ready-to-use colour contrast magnetic ink ideal for the inspection of ferromagnetic materials, structures and components by the magnetic particle inspection method. A typical application is the inspection of welds, pressure vessels and pipeline in the oil, gas and petrochemical industries as well as power plants.
Ardrox 800-3 consist of very finely divided black magnetic particles suspended in high flash point, dearomatized, odourless petroleum distillate designed to provide good particle mobility. The particles have been selected for their high magnetic response, low coercivity and prolonged operational life.
Ardrox 800-3 and Base Oil HF use a hydrocarbon oil corresponding to the AMS 2641, Type 1 Magnetic Particle Inspection Vehicle with a flash point exceeding 93°C / 200°F.
Ardrox 800-3 is available as bulk material and as aerosol. It offers optimal performances when used together with the Ardrox® 8901W or 8903W contrast paint.
Specifications
| Properties |
| Appearance |
Suspension of black powder |
| Colour in visible light |
Black |
| Mean particle size* |
|
| SAE sensitivity** |
|
| White Light |
>500 Lux |
| Odour |
Odourless |
| Flash point |
>93°C |
| Use recommendations |
| NDT Method |
Magnetic Particle Testing, Non-fluorescent / Visible, Wet Method |
| Suspension Vehicle |
Kerosene |
| Required Equipment |
Magnetising device, UV light source |
| Temperature Range* |
0 to 75°C |
| Viscosity |
3.0 at 40°C |
| Settling Volume |
1.5 – 2.4ml |
| Coverage |
|
| Accompanied by |
8903W |
Application
Aerosol cans and bulk containers must be shaken thoroughly before and during use in order to homogenize the powder concentration.
Method of use
Surface temperature should be between -20 and 75°C (-4 to 165°F). Components are magnetized and Ardrox® 800/3 is applied to the test area, normally by spraying immediately prior to and during magnetization. Application of Ardrox® 800/3 should cease before the magnetization is switched off. Defects will show up as well defined black indications and inspection should take place in good white light of at least 500 Lux (refer to the controlling specification for levels of ambient light acceptable for inspection).
White contrast paint
It is not practical to use Ardrox 800-3 on dark substrates as it would be difficult for the inspector to identify indications against the dark background. Therefore, the white contrast paint Ardrox® 8901W or 8903W is frequently used to provide a contrasting background against the black indications (alternatively, fluorescent fluids such as the Ardrox® 8 series inks may be used if a UV light is available). Ardrox® 8901W or 8903W can then be left on the
surface or removed with an appropriate Ardrox® solvent cleaner, for instance Ardrox® 5319.
Effects on materials
When Ardrox® 800/3 is used in the prescribed manner, no significant corrosion will occur on ferrous materials. Equipment/tanks should be constructed of stainless steel.
Storage
Store in a cool place, with protection from freezing conditions. Shelf life of Ardrox® 800/3 is 36 months.
Labour and environmental protection
Before operating the process described it is important that this complete document, together with any relevant Safety Data sheets, be read and understood. All local and national regulations on the transport, storage, use and waste treatment of chemicals in concentrated or diluted form and as working solutions must be obeyed.
General Information
Chemetall supplies a wide range of chemical products and associated equipment for cleaning, descaling, paint and carbon removal, metal working and protection and non-destructive testing. Sales Executives are available to advice on specific problems and applications.
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Additional information
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