ASTM A/AM. Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement is exclusively applicable to hot-dip galvanizing . ASTM A/AM: Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement. ASTM A/AMa Testing Mechanical Splices for Steel Reinforcing Bars .. ASTM A/AM Zinc-Coated (Galvanized) Steel Bars for Concrete.
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This specification covers the chemical, mechanical, and dimensional requirements for eight grades Grades O, A, B, C, D, DH, C3, and DH3 of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.
This specification covers cold-formed welded and seamless carbon steel round, square, rectangular, or special shape structural tubing for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes. The following can cause warpage and distortion: Therefore, each system shall be used independently of the other. This test method deals a677 the standard procedures for establishing the relative bond strength of steel reinforcing bars in concrete using beam-end specimens.
The specification requirements for coating thickness only contain minimums, there is no maximum coating thickness limitation in the specification. This material provides general information only and is not intended as a substitute for competent professional examination and verification as to suitability and applicability.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Fabrications can have more than one material category, such as a frame assembly.
The purpose of the calculation is to provide justification for the purchase of a higher initial cost system with a low life-cycle cost over an initially less expensive coating which has high future costs. The requirements of this specification are very similar to those in A, except for the addition of threaded products and embrittlement requirements. Eddy-current-type thickness measurement is a non-destructive test measuring variations in the impedance of an eddy-current inducing coil caused by coating thickness variations.
This specification covers rolled steel structural shapes for use in building framing or bridges, or for general structural purposes.
Assemblies should consist of elements of similar atsm and surface condition. These notes and footnotes excluding those in tables shall not be considered as requirements of the specification. The galvanizer is identified throughout this specification as the manufacturer. Are you still looking for the right answer?
However, if the galvanizer has to perform additional work in order to prepare the product for hot-dip galvanizing, such as drilling holes to facilitate drainage or venting, the galvanizer will communicate and resolve the issue with the customer. Standard Specification for Zinc Coating Hot-Dip on Iron and Hardware applies to hardware products such as castings, fasteners, rolled, pressed, and forged products, and miscellaneous threaded objects sstm will be centrifuged, spun, or otherwise handled to remove astn excess zinc.
ASTM A – Galvanizing Steel Bars | American Galvanizer’s Association
A requires a continuous, smooth, and uniform finish with no uncoated areas including on the threads or issues that interfere with its intended use. Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: It is the responsibility of the designer and fabricator to ensure the product has been properly designed and built before the hot-dip galvanizing process supporting specifications.
Specification for Structural Steel.
Historical Version s – view previous versions of standard. The material categories covered in the specification include structural steel and plate, strips and bars, pipes and tubing, and wires.
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
This cold working of the bars causes induced stresses that may be released after the bars are immersed in the molten F zinc bath. This specification covers prime western grade-recycled PWG-R zinc made by recycling zinc secondary materials including but not limited to drosses and skimmings.
Embrittlement is the loss or partial loss of ductility in a steel where an embrittled product characteristically fails by fracture without appreciable deformation. This post-treatment helps to prevent the formation of wet storage stain on the bars when they are in bundles at a job site and also promotes good adhesion of the galvanized rebar to the concrete it is placed in.
Work Item s – proposed revisions of this standard. The requirements in the specification facilitate the production of a high-quality zinc coating and are similar to those found in A and A Rebar is commonly bent prior to galvanizing, and the recommendations for diameter and ast practices are provided in A This specification covers black and hot-dipped galvanized hot-formed welded adtm seamless carbon steel square, round, rectangular, or special shape structural tubing for welded, riveted, or bolted construction or bridges and buildings, and for general structural purposes.
The mass of zinc coating shall conform to specified requirements. ASTM A Practice aetm Repair of Damaged and Uncoated Areas of HOt-Dip Galvanized Coatings covers appropriate methods used to repair damaged hot-dip galvanized coatings on hardware, structural shapes, and other hot-dip galvanized products, including uncoated areas remaining after initial hot-dip galvanizing.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Was this answer helpful? The following is a summary of the various pertinent hot-dip galvanizing specifications.