Description
1 GRAY - Gray Visible Magnetic Particle - Dry Method
1 Gray provides strong contrast on most metal surfaces for dry method magnetic particle testing under visible light. Ready for immediate use for flaw detection and evaluation of surface and subsurface discontinuities in ferrous metals. It can be used with a powder sprayer or sprayed from a container during magnetization, and the excess removed while the current is still being applied. On materials with high magnetic retention, indications may still be formed after the current is turned off.
Benefits
- Gray coloration
- Accurate color contrast indications on highly reflective surfaces
- Ready to use
- Good particle accumulation for rapid detection
- Highly refined for the ideal combination of particle shape and size
- Minimal dust accumulation
- No need for ultraviolet light or darkening of the inspection area
Accordance
- AMS 3040
- ASTM E709
- ASTM E1444
- ASME
- MIL-STD-271
- MIL-STD-2132
- NAVSEA 250-1500-1
- NAVSEA T9074-AS-GIB-010/271
- NBR NM 342
- PETROBRAS N-1598
- ISO 9934
Application
| Defect Location |
Surface and subsurface |
| Ideal Applications |
Light, medium, and dark surfaces, Medium and large discontinuity detection, Weld testing, Forgings, Castings, Field testing, Spot inspections, Maintenance inspections, Large parts, High temperatures, Irregular/textured surfaces |
| Examples of Defects |
Inclusions, Folds, Shrinkage Cracks, Tears, Wrinkles, Chips, Welding Defects, Machining Cracks, Cooling Cracks, Fatigue Cracks |
Product Properties
| Appearance |
Fine, dry powder |
| Color in Visible Light |
Grayish white |
| Smell |
Odorless |
| Average Particle Size |
80 mícrons |
| SAE Sensitivity |
> 8 |
Usage Recommendations
| NDT Method |
Visible Magnetic Particle Test, Dry Method |
| Necessary Equipment |
Magnetizing device, powder dispenser |
| Temperature Range |
Room temperature to 399 °C |
