Device for detecting tensile strength of steel

The utility model discloses a steel tensile strength detection device, and relates to the technical field of steel tensile detection, the steel tensile strength detection device comprises a detection table, a fixed seat and a sliding seat, the fixed seat is fixedly mounted at the top of the detection table, a hydraulic rod is fixedly mounted on one side of the fixed seat, and the sliding seat is fixedly mounted at the output end of the hydraulic rod; and clamps are fixedly mounted on the front surfaces of the fixed seat and the sliding seat, and each clamp comprises a bottom plate, a fixed clamping plate and a movable clamping plate. According to the utility model, the insertion rod is rotated to enable the threaded rod to drive the movable clamping plate to extrude the steel and approach the fixed clamping plate, the inclined sawteeth arranged on the fixed clamping plate and the movable clamping plate are embedded into the side wall of the steel, and the arrangement of the insertion rod can enable the detect