7C Black

Wet Method Colored Nonfluorescent Magnetic Particles

7C Black is a highly-sensitive magnetic particle powder for nonfluorescent (visible) wet method magnetic particle testing. Particle suspensions prepared with 7C Black provide clear, strong indications and are ideal for locating fine and medium discontinuities on finished parts.

7C Black can be mixed with water or oil and used to find inclusions, seams, shrink cracks, tears, laps, flakes, welding defects, grinding cracks, quenching cracks, fatigue cracks and other defects.

Use with WCP-2 white contrast paint to improve probability of detection and sensitivity.

A highly-sensitive non-fluorescent, colored magnetic particle powder for wet magnetic particle testing on finished and in-process parts.

Yderligere information

Benefits

  • Clear indications under visible light
  • Heavy particle buildup for quick detection
  • Can be suspended in water or petroleum distillate (oil) vehicle
  • Great particle mobility

Ordering Information

25 lb / 11.34 kg pail01-1116-81
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Product Properties

NDT TypeVisible Magnetic Particle TestingParticle Suspension VehiclePetroleum Distillate (Oil), Water

Required EquipmentMagnetizing device

Applications

Ideal ApplicationDetecting fine and medium discontinuities, Difficult to reach areas, Field testing, In-service inspections, Light surfaces, Machined parts, Reflective or light-colored surfaces, Spot inspectionsDefect ExamplesFatigue cracks, Grinding cracks, Inclusions, Laps, Quenching cracks, Seams, Shrink cracks, Tears, Welding defects

Compliance

StandardsAMS 3042, ASME, ASTM E3024, ASTM E709, MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271

Resources