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A highly-sensitive oil-based magnetic particle aerosol for nonfluorescent (visible) wet method magnetic particle testing to locate fine and medium discontinuities on finished parts.
7HF provides clear, strong indications due to the heavy buildup of the highly magnetic particles. The convenient aerosol packaging is ideal for field testing, spot inspections and places where bulk processing is impractical, and the wide spray pattern makes it easy to cover large areas for faster processing during remote inspections of tubing, piping and large structures.
7HF is often used with WCP-2 white contrast paint to improve contrast and inspection sensitivity.
Maximize indication detection
Convenient to use
Wide application versatility
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NDT TypeVisible Magnetic Particle Testing
Particle Suspension VehicleCarrier II (Petroleum Distillate)
Required EquipmentMagnetizing device
Ideal ApplicationDetecting fine and medium discontinuities, Difficult to reach areas, Field testing, In-service inspections, Light surfaces, Machined parts, Spot inspections
Defect ExamplesFatigue cracks, Grinding cracks, Inclusions, Laps, Quenching cracks, Seams, Shrink cracks, Tears, Welding defects
StandardsAMS 3043, ASME BPVC, ASTM E3024, ASTM E709, ISO 9934, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271
White contrast paint provides a high contrast background to improve probability of detection and sensitivity during visible magnetic particle inspections
Ergonomic, lightweight, sealed and servicable electromagnetic AC yoke finds surface indications during magnetic particle testing
Durable, high-strength electromagnetic AC/DC yoke finds surface and sub-surface indications during magnetic particle testing
Portable power packs can be carried by hand to the inspection location and provide AC or HWDC magnetization
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155 Harlem Avenue
Glenview, IL 60025, USA
Telephone: +1 847-657-5300
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