EN ISO 6506-2 Metallic Materials - Brinell Hardness Test

EUROLAB, with its state-of-the-art accredited laboratories and expert team, offers precise and rapid testing services within the scope of EN ISO 6506-2 testing. EN ISO 6506-2 specifies the methods of direct and indirect verification of testing machines used to determine Brinell hardness in accordance with EN ISO 6506-1 and also specifies when these two types of verification should be carried out.

Direct verification involves checking whether individual machine performance parameters are within specified limits, while indirect verification uses hardness measurements of reference blocks calibrated in accordance with EN ISO 6506-3 to check the overall performance of the machine.

If a testing machine is also to be used for other hardness testing methods, it must be independently validated for each method. EN ISO 6506-2 applies to both fixed-position and portable hardness testing machines.

Before Brinell hardness testing machine is validated, the machine should be checked to ensure:

• The machine is properly installed;
• The piston holding the ball slides correctly in its guide;
• The ball bearing retainer is firmly mounted on the piston;
• Applying and removing the test force without shock, vibration or overload and without affecting the readings;
• For measuring devices integrated into the machine.

A randomly selected sample from a batch will be tested to verify the size and hardness of the balls. Balls whose hardness has been verified will be thrown.

Verification and calibration of testing machines is crucial to ensure the accuracy and reliability of hardness test results. This standard provides guidelines for performing these processes, including procedures for checking the accuracy of the machine against reference blocks and determining correction factors if necessary.

EUROLAB assists manufacturers with EN ISO 6506-2 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.