The process of hardening Smart Block Pins may vary, but when it comes to parts manufactured in the EU, we adhere to a specific procedure:

We employ a two-step cycle to achieve a hardness ranging from 42 to 48 HRC.

Firstly, we initiate a hardening cycle wherein the temperature is carefully controlled and elevated to levels between 1020 and 1050°C. This process, also known as martensitic or quench hardening, or neutral hardening, involves a transformation of the microstructure into austenite once the temperature reaches 730-900°C (depending on the type of steel). Subsequently, the temperature is maintained to ensure uniformity throughout the part. These steps occur within a neutral gas atmosphere. Finally, the part undergoes quenching in a cold medium, typically an acid bath.

Following the hardening cycle, we proceed with a stabilization cycle at a temperature of approximately 450-480°C. This step is essential for striking a balance between hardness and mechanical strength, allowing us to achieve the expected values of double shear strength required.

Similar to the hardening process, the stabilization cycle is conducted in a protective gas environment to prevent oxidation. Tempering is performed to decrease the material's hardness while enhancing its toughness.