Cracks or bursts designate an abrupt interruption of the periphery of the stud head by radial separation of the metal. Finished studs shall be of uniform quality and condition, free of injurious laps, fins, seams, cracks, twists, bends, or other injurious discontinuities. Radial cracks or bursts in the head of a stud shall not be the cause for rejection, provided that the cracks or bursts do not extend more than half the distance from the head periphery to the shank, as determined by visual inspection. Heads of shear connectors or anchor studs are subject to cracks or bursts, which are names for the same thing. (2) Certification from the manufacturer that the stud base is qualified in conformance with Annex IX.ĥ.Stud Finish.Finish shall be produced by heating, rolling, or machining. (1) A description of the stud and arc shield When requested by the Engineer, the Contractor shall provide the following information: The arc shield used in production shall be the same as used in qualification tests or as recommended by the manufacturer. Qualification of stud bases in conformance with Annex IX shall be at the manufacturer’s expense. Only studs with qualified stud bases shall be used. in diameter may be furnished with or without flux.Ĥ.Stud Bases. A stud base, to be qualified, shall have passed the test described in Annex IX. A suitable deoxidizing and arc stabilizing flux for welding shall be furnished with each stud of 5/16 in. An arc shield (ferrule) of heat-resistant ceramic or other suitable material shall be furnished with each stud.ģ.Flux.

Aws code d1.1