Abstract: The present invention it to provide an angle iron for speedy pipe hanging, particularly is related to an angle iron requires no prior size measuring and boring during the construction of pipe hanging so to save man hours and is applicable to all tubular objects having the general specification that allos easy and facilitated use as its primary objective. The present invention comprises a set of angle iron and fastening components, which including U screws, nuts and packings. Essentially, it is characterized by pre-punching out on either plane of the angle iron a series of strip openings with each abutted openings having a certain spacing while both ends showing an arch respectively; then the processed angle iron requires no size measureing and boring when to be feastened to the tubular objects as to allow speedy construction, particularly is applicable to the fastening of pipe hanging of tubular objects having the general specification.