The present work focuses on the tensile strength of reinforced concrete high yield steel bars from Rwanda and Turkey, commonly used in the construction in Goma, recycled in Rwanda from metal waste from off-road vehicles and others collected in Goma. Metal waste is collected in Goma largely manually and transported to Rwanda where a lathe machine tool is used to manufacture steel specimens which undergo a tensile test using the WP 300 universal testing machine for tensile test. The yield strength of the ordinary high yield steel bars and that of the standard high yield steel bars all recycled in Rwanda are 420.6 and 392.8 MPa respectively while the yield strength of the recycled high yield steel bars from Turkey is 443 MPa. These values ​​are very close to the values ​​recommended by French standard N F EN 1992 (Part 1-1) which must be between 400 MPa and 600 MPa and are of high ductility (Class C). The Young moduli of ordinary high yield steel bars recycled from Rwanda, that of standard high yield steel bars recycled from Rwanda and finally that of high yield steel bars recycled from Turkey are respectively 27.6, 27.6 and 31.2 GPa, very low values compared to the value of 200 GPa recommended by the standards, hence the importance of taking them into consideration in the design calculations.