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Magnaflux

Magnaflux Magnetic Flux Indicators

Magnaflux Magnetic Flux Indicators

SKU: 008M004

Stock Status: In stock
$286.00
$286.00
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Magnaflux Type G (General Use) Magnetic Flux Strips are flexible indicators used to detect appropriate levels of magnetic field strength and directional orientation during the magnetic particle testing process. They are manufactured from permeable magnetic steel sandwiched between two protective 0.002" brass plates. The central magnetic steel plate contains three milled slots with widths of .0075", .009", .010" and common depths. The slots serve as sample test flaws with wider slots generating greater amounts of magnetic flux leakage and larger magnetic particle indications than narrower ones.

By using Magnaflux Magnetic Flux Strips, magnetic field direction and levels can be properly set and continuously checked during the MPI process for their sufficiency in detecting defects of the sizes indicated on the test strip.

Magnetic Flux Strips are also known as Type G Burmah-Castrol Strips.  The strips are commonly used with wet visible materials for power pack equipment and yoke inspections, but can also be used with dry magnetic powders.  Magnetic Flux Strips are stiffer than QQIs, and do not conform to curved surfaces easily.  But unlike QQIs, Magnetic Flux Strips are not permanently affixed to a part so they can be reused for multiple applications.  Because they form linear indications in only one direction, Magnetic Flux Strips are not suitable for use with multi-directional magnetization.

5 strips included per package

 

NDT Type

  • Fluorescent Magnetic Particle Testing
  • Visible Magnetic Particle Testing

SPECIFICATIONS

  • ASME BPVC
  • ASTM E709
  • ASTM E1444
  • ASTM E3024

For use with systems conforming to:

  • API STD 1104
  • ANSI/API 6A
  • ISO 10423
  • ANSI/AWS D1.1

INSTRUCTIONS

Place the flux indicator strip in intimate contact with the area to be examined. The strip may be held in place manually or with the use of an adhesive or tape. Do not cover the center of the strip with tape because that will prevent formation of indications. Flux indicator strips provide the strongest indications when positioned so that the long dimension is perpendicular to the applied magnetic field. After the strip is positioned, energize the magnetic field and apply magnetic particles (wet suspension or dry powder). Indications perpendicular to the magnetic flux will be stronger and more well defined than indications at an angle. No indications will form if the strip is aligned parallel to (in line with) the magnetic flux.

Product Data Sheet