AS 5282 Test Ring
Ketos Test Ring
Tool Steel Ring
The AS 5282 Test Ring (formerly known as the Ketos Test Ring) is a quick test method for ensuring an MPI process is suitable for detecting a type of defect.
The AS 5282 Ring consists of a ring with a series of drilled holes in different positions. The holes closest to the outer circumference simulate shallow defects while the holes closest to the centre of the ring simulate deep sub-surface discontinuities which would typically only be found using a DC current.
Conforms to:
- ASTM E709
- ASTM E1444/E1444M
- ASTM E3024/E3024M
- ASME Boiler & Pressure Vessel Code
- SAE AS 5282
Using the AS 5282 Test Ring
A test is performed by mounting the AS 5282 Test Ring on a central conductor in a threader bar configuration with the ring at 90 degrees to a coil centreline. By applying a current flow shot through the threader bar the defects in the AS 5282 Test Ring can be seen around the circumference of the ring in a series of lines.
The results should conform to the minimum standards in the table below.
| Type of suspension | Amperage (FWDC or HWDC) | Minimum number of holes indicated |
|
Fluorescent |
500 |
3 5 6 7 9 |
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