Magnetic particle reference test block

The reference test block is a round block with natural cracks on the surface, which contains thick line cracks and thin line cracks caused by grinding and stress corrosion. The test block is permanently magnetized with a perforated center conductor. Use visual or other methods to evaluate the test medium.

Technical Parameters:

Test block material: 90MnCrV8,

Surface hardness: 63HRC ~ 70HRC

Magnetization method: 1000A DC center conductor magnetization

Meet the standard: GB / T15822.2-2005 and ISO9934-2: 2002

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