Visit weldfabworld.com 🔍Hardness Testing – A Vital Tool for Verifying Strength, Integrity, and Process Control in EPC Projects Hardness testing is one of the most widely used material evaluation methods in the engineering and construction industry. It helps assess a material’s resistance to deformation and indirectly reflects its strength, ductility, and service performance. 1️⃣ Purpose of Hardness Testing 🔹To verify the effectiveness of heat treatment such as quenching, tempering, or PWHT. 🔹