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 cold working of the bars causes induced stresses that may be released after the bars are immersed in the molten F zinc bath. These notes and footnotes excluding those in tables shall not be considered as requirements of the specification.
Link to Active This link will always route to the current Active version a67 the standard. January 25, Authored by Dr.
ASTM zstm not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Embrittlement is the loss or partial loss of ductility in a steel where an embrittled product characteristically fails by fracture without appreciable deformation.
Combining values from the two systems may result in non-conformance with this specification. If rebar is bent fabricated after the galvanized coating is applied and any flaking or cracking occurs, it is not rejectable. 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. A retest shall be provided if the asrm zinc coating mass fails to meet the requirements.
A requires a continuous, smooth, and uniform finish with no uncoated areas including on the threads or issues that interfere with its intended use. Fabrications can have more than one material category, such as a frame assembly. The LCC analysis s767 not only the initial cost of the system but also the future costs maintenance, replacement, etc. Historical Version s – view previous versions of standard.
Atsm A Practice for 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.
The specification requirements for coating thickness only contain minimums, there is no maximum coating thickness limitation in the specification. This practice is applicable to chromate coatings of the colorless both one and two-dipiridescent yellow or bronze, olive drab, black, colorless anodic, yellow or black anodic types, and of the dyed variety, when applied to surfaces of electrodeposited zinc, mechanically deposited zinc, hot-dipped zinc, rolled zinc, electrodeposited cadmium, or mechanically deposited coatings.
Finally, the adherence requirement is for the entire coating to have a strong adherence throughout the service life of the galvanized steel.
ASTM A767/A767M – 16
The following is a summary of the various pertinent hot-dip galvanizing specifications. Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: The galvanized coating shall aastm chromate treated. However, the AGA does provide a compilation of specifications pertinent to galvanizing. This abstract is a brief summary of the referenced standard.
The mass of the coating shall be determined by magnetic thickness gage measurements. Specification for Structural Steel. The values stated in each system may not be a76 equivalents. Practice for 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.
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 that will be centrifuged, spun, or otherwise handled to remove the excess zinc.
ASTM Specifications | American Galvanizer’s Association
The following can cause warpage and distortion: This specification covers rolled steel structural shapes for use in building framing or bridges, or for general structural purposes. Leave this field blank. The adherence requirement is the same as A, for strong bond throughout the life of the hot-dip galvanized steel.
It may also be known by its trade name, e. Rebar is commonly bent prior to galvanizing, and the recommendations for diameter and best practices are provided in A This specification covers prime western grade-recycled PWG-R zinc made by recycling zinc secondary materials including but not limited to drosses and skimmings. Unique to this specification is also the requirement the galvanized bars be immersed in a heated, sodium dichromate solution immediately after the process.
This test method deals with the standard procedures for establishing the relative bond strength of steel reinforcing bars in concrete using beam-end specimens.
ASTM A – Galvanizing Steel Bars | American Galvanizer’s Association
qstm The specification also calls out specific recommended before galvanizing bending radii. The information provided herein is not intended as a representation or warranty on the part of the AGA.
Work Item s – proposed revisions of this standard.
The design of the product and selection of proper steel for its suitability to withstand normal galvanizing operations is the responsibility of the designer and fabricator.