Particles for Magnetic-Particle Flaw Detection
Reveal imperfections both at and slightly below the surface of your metal part, unlike other flaw detection methods. Use these particles with a magnetic yoke to check for faulty seams, welding defects, and fatigue cracks to make sure metal parts will be safe under high stress. The yoke creates a magnetic field that draws the particles towards flaws, making them easy to spot. To prevent issues with other inspections down the line, make sure to fully demagnetize your part to remove all the particles.
Powder particles withstand higher temperatures than spray particles and are quick to use. They don’t need to dry, which means you can start testing immediately. Shake them out from a bottle or use a powder blower to apply them to your part. You can blow excess particles off even if your part is still magnetized. They come in different colors, so choose what will contrast best with your metal surface.
When testing round or hard-to-reach material, it’s easier to apply an even layer of spray particles than powder. They’re smaller than powder particles, so they’re good for detecting finer surface flaws and imperfections. Particles with a 360° sprayer won’t sputter or spatter even when the aerosol can is upside down, so you can coat parts evenly without straining your wrist. Water-based spray particles are easier to clean up than oil-based spray particles. Black spray particles are often used with white contrast paint to make flaws more visible.
Ultraviolet spray particles require a UV light, but stand out more than natural light particles, so you spend less time examining each part. For the best contrast, use these particles in dim lighting.
Container | Application Temp. Range | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Use On | Visibility | Color | Net Weight | Type | Particle Size, microns | Min., °F | Max., °F | Features | Specifications Met | Each | |
Powder | |||||||||||
| Cobalt, Iron, Nickel, Stainless Steel, Steel | Natural Light | Gray | 10 lbs. | Pail | 80 | Not Rated | 750° | __ | ASTM E1444, MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271 | 00000000 | 0000000 |
| Cobalt, Iron, Nickel, Stainless Steel, Steel | Natural Light | Red | 10 lbs. | Pail | 80 | Not Rated | 600° | __ | ASTM E1444, ISO 9934, MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271 | 00000000 | 000000 |
| Cobalt, Iron, Nickel, Stainless Steel, Steel | Natural Light | Yellow | 10 lbs. | Pail | 80 | Not Rated | 500° | __ | ASTM E1444, ISO 9934, MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271 | 00000000 | 000000 |
Oil-Based Spray | |||||||||||
| Cobalt, Iron, Nickel, Stainless Steel, Steel | Natural Light | Black | 10.5 oz. | Aerosol Can | __ | 45° | 120° | 360° Sprayer | ASTM E1444, ISO 9934, MIL-STD-2132, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271 | 00000000 | 00000 |
| Cobalt, Iron, Nickel, Stainless Steel, Steel | Ultraviolet | Fluorescent Light Green | 10.5 oz. | Aerosol Can | 6 | 55° | 120° | __ | ASTM E1444, ISO 9934, MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271 | 0000000 | 00000 |
Water-Based Spray | |||||||||||
| Cobalt, Iron, Nickel, Stainless Steel, Steel | Natural Light | Black | 12.2 oz. | Aerosol Can | __ | 25° | 120° | __ | ISO 9934, MIL-STD-2132, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271 | 00000000 | 00000 |
Plug-In Magnetic Particle Flaw-Detection Kits
Find faulty seams, welding defects, and other surface-level flaws in ferrous materials. These kits come with everything you need to start inspecting parts. Apply the powder to the surface you want to inspect. Then plug in the yoke and it creates a magnetic field that draws the powder to the imperfection, making it easy to spot. Built for rugged environments, the yoke has a sealed design that stands up to chemicals and other harsh conditions. It’s also half the weight of a standard yoke and fits comfortably in your hand, so there’s less fatigue if you use it for extended periods of time.
| For Use On | Includes | Plug Type | Voltage | Specifications Met | Each | |
| Cast Iron, Stainless Steel, Steel | One 1-lb. Bottle of Gray Powder, One 1-lb. Bottle of Red Powder | Three Prong | 120V AC | ASTM E1444, MIL-STD-2132, MIL-STD-271 | 000000 | 0000000 |
Battery-Powered Magnetic Particle Flaw-Detection Kits
Check for defects slightly beneath the surface of ferrous materials that you wouldn’t otherwise see. The yoke in these kits is powered by a battery, so it uses direct current to create a strong magnetic field that reaches just below the surface of your part. When you apply the powder, the powder will move towards any flaws, helping you identify tears, cracks, and other imperfections.
Ideal for fieldwork, these kits come with everything you need for on-the-go inspections. The yoke lasts up to eight hours on a single battery charge. Built for rugged environments, it has a sealed design that stands up to chemicals and other harsh conditions.
| For Use On | Includes | Battery Voltage | Batteries Included | Battery Charger Included | Specifications Met | Each | |
| Cobalt, Iron, Nickel, Stainless Steel, Steel | One 1-lb. Bottle of Gray Powder | 6V DC | Yes | Yes | ASTM E1444 | 0000000 | 000000000 |
Plug-In Yokes for Magnetic-Particle Flaw Detection
Find welding defects and other flaws in magnetic materials. These yokes create a magnetic field that draws magnetic powder (not included) to imperfections, making them easy to spot. All operate on AC power, which creates a small magnetic field ideal for detecting flaws along the surface of materials. Powered by standard electrical outlets, these yokes have a reliable and consistent power source.
6-lb. yokes are lightweight and fit comfortably in your hand to reduce fatigue over extended use. Attach an LED light to your yoke to brightly illuminate inspection areas. They’re powered by the yoke’s magnetic field, so they don’t require batteries.
Yokes with an AC/DC switch can also operate on DC power. DC power generates a deeper magnetic field than AC power to find defects underneath surfaces, such as internal tears and cracks.
Calibrate your yoke before each use with a test weight to ensure accurate test results.
Yokes | Test Weights | LED Light Attachments | Replacement Cords | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Features | For Use On | Power Source | Cord Lg. | Ht. | Lg. | Weight, lbs. | Specifications Met | Each | Each | Each | Each | ||||
| 120V AC | __ | Cobalt, Iron, Nickel, Stainless Steel, Steel | Electric | 12 ft. | 7 1/2" | 12" | 6 | ASTM E1444 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 |
| 120V AC | AC/DC Switch | Cobalt, Iron, Nickel, Stainless Steel, Steel | Electric | 12 ft. | 7 1/2" | 12" | 8 | ASTM E1444 | 0000000 | 00000000 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
Natural Light Flaw-Detection Kits
Use colored dye to reveal cracks and surface flaws in most nonporous material. Flaws become visible under natural light and appear as a bright red color. Commonly used for weld inspecting.
| For Use On | Includes | Specifications Met | Each | |
| Carbide, Cast Iron, Ceramic, Stainless Steel, Steel | Four 16-oz. Aerosol Cans of Cleaner, Two 16-oz. Aerosol Cans of Developer, Two 16-oz. Aerosol Cans of Red Dye | ASTM E1417, MIL-STD-2132, MIL-STD-271, SAE AMS2644 | 000000 | 0000000 |
UV Light Flaw-Detection Kits
More sensitive than natural light kits, these kits use UV light with colored dye to detect cracks, seams, and pores on machined surfaces.
Light | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Use On | Includes | Bulb Type | Wattage | Voltage | Electrical Connection Type | Plug Type | Cord Length, ft. | Specifications Met | Each | |
| Carbide, Cast Iron, Ceramic, Stainless Steel, Steel | One 16-oz Aerosol Can of Fluorescent Green Dye, One 16-oz. Can of Developer, Two 16-oz. Aerosol Cans of Cleaner, UV Light | Ultraviolet | 5W | 120V AC | Plug In | Three Prong | 9 | ASTM E1417, MIL-STD-2132, MIL-STD-271, SAE AMS2644 | 0000000 | 000000000 |
Contrast Paint for Magnetic-Particle Flaw Detection
Create a high-contrast background for magnetic particles to make flaws easier to spot during inspections. This opaque white paint reduces glare, so you can see where particles are clustered around imperfections. No need for brushes—it comes in an aerosol can that’s easy to use during field testing and spot inspections. Even when the can is upside down, the 360° sprayer won’t sputter or spatter, so you can coat parts evenly without straining your wrist. To speed up inspections, this paint dries quickly, leaving a clean coat that won’t bubble or flake. It works with both wet and dry magnetic particles.
Container | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Net Weight, oz. | Type | Composition | O'all Dry Time | Application Temperature Range, °F | For Use On | Color | Features | Each | |
Spray | |||||||||
| 12 | Aerosol Can | Solvent Based | 1 min. | 45° to 120° | Cast Iron, Cobalt, Iron, Nickel, Stainless Steel, Steel | White | 360° Sprayer | 0000000 | 000000 |
Surface Passivation Test Kits
Test stainless steel to see if it needs to be passivated or was properly passivated. These tests detect the presence of iron from fabrication processes, which can limit stainless steel's inherent ability to resist corrosion. Often used in aerospace, pharmaceutical, and medical device industries, they meet ASTM, aerospace, and military passivation standards.
To perform a test, squeeze the dropper to apply the solution to the surface of a part. Keep the surface wet for six minutes before rinsing and drying it off. Do not scrub the solution off. If iron is detected, the surface will appear copper in color. If no copper coloring appears, the surface is clear of contaminants and is properly passivated. These bottles include enough solution to perform hundreds of spot tests.
This test is often used on all 200 and 300 series stainless steels and some 400 series stainless steel alloys. However, it’s not recommended to use this solution on 400 series stainless steel with less than 16% chromium. These stainless steel alloys will typically cause a false failure of the test.
Container | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Use On | Test Type | No. of Tests | Type | Size, oz. | Includes | Specifications Met | Each | |
| Stainless Steel | Analog | 200 | Bottle | 2 | Cloth, Copper-Sulfate Testing Solution, Cotton Swabs | ASTM A380, ASTM A967, ASTM B912, MIL-STD-753, SAE AMS2700 | 0000000 | 000000 |