Description
MV-740 - Ready-to-Use Black Magnetic Particle Suspension - Water-Based
MV-740 is a ready-to-use, water-based magnetic particle suspension that is highly sensitive for wet, non-fluorescent (visible) magnetic particle testing to locate fine and medium discontinuities in finished parts. It is a water-based version of the already popular 7HF. MV-740 allows for the detection of well-defined, strong indications due to the large accumulation of highly magnetic particles. Because it is ready to use, no dilution is necessary. MV-740 is typically used with WCP-2 white contrast ink to improve contrast and inspection sensitivity.
Benefits
- Ecological profile
- Maximizes application versatility and indication detection
Compliance and Standards
- AMS 3043
- ASTM E709
- ASTM E1444
- ASTM 3024
- ASME BPVC
- ASME B&PV Sec. V
- Boeing PS-21201
- ISO 9934
- MIL-STD-2132
- NAVSEA 250-1500-1
- NAVSEA T9074-AS-GIB-010/271
- NBR NM 342
- PETROBRAS N-1598
Applications
| Defect Location |
Surface and subsurface |
| Ideal Applications |
Detection of fine and medium discontinuities, Field testing, Spot inspections, Maintenance inspections, Machined parts, Bright surfaces, Hard-to-reach areas |
| Examples of Defects |
Inclusions, Folds, Shrinkage Cracks, Tears, Wrinkles, Chips, Welding Defects, Machining Cracks, Cooling Cracks, Fatigue Cracks |
Product Properties
| Appearance |
Water-based liquid solution with fine particles |
| Color in Visible Light |
Black |
| Smell |
Odorless |
| Average Particle Size |
< 2 mícrons |
| SAE Aensitivity |
> 6 |
| Flash Point |
> 100 °C |
Usage Recommendations
| NDT Method |
Visible magnetic particle test, wet method |
| Suspension medium |
Water |
| Necessary Equipment |
Magnetizing device |
| Temperature Range |
-4 to 48°C |
| Sedimented Volume |
1,20 to 2,40 mL |
| Coverage |
6 m² |
