1200 million tonnes of steel chips are produced annually by lathes and CNC equipment, and they are challenging to recycle. On the characteristics of concrete, the impact of adding steel chips without first cleaning them (coated with manufacturing lubricants and cooling oils) was examined. In place of fine aggregate, steel waste was included in quantities of 5%, 10%, and 15% of cement weight, corresponding to respective amounts of 1.1%, 2.2%, and 3.3% mass of all materials and 0.33%, 0.66%, and 0.99% volume of concrete mix. A number of factors were examined, including the slump cone, air content, pH value, density, compressive strength, tensile strength, tensile splitting strength, elastic modulus, Poisson's ratio, and thermal parameters.