ASTM A gives information on recommended steel chemistry for steel to be galvanized, as well as required venting/drainage hole. ASTM A/A M. Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip) provides details on steel selection and other design practices such as. ASTM Apdf – Download as PDF File .pdf), Text File .txt) or read online.
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Thus, they will not be removed by standard shown in Fig. Click here to sign up. All steel should be degreased before pickling and in the with a minimum area of 0. Heat analysis shall be used to determine the percentage of carbon, manganese, phosphorus, sulfur, vanadium, axtm, chromium, molybdenum, columbium, and copper for the required chemical composition.
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. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Steel materials and nuts shall be manufactured, processed, and formed as appropriate for their respective grades. 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 test method deals with the standard procedures for establishing the relative bond strength of steel reinforcing bars in concrete using beam-end specimens. A number in parentheses indicates the year of last reapproval. 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.
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. Standard Specification for Zinc.
Link to Active This link will always route to the current Active version of the standard. Enter the email address asfm signed up with and we’ll email you a reset link. Finally, the adherence requirement is for the entire coating to have a strong adherence throughout the service life of the qstm steel. LME grade, special high grade, high grade, intermediate grade, and prime western grade.
In addition, a center hole shall be provided so that tapping of the nut that is required for proper fit. Whenever different analyses of steel or aztm surfaces of steel are united in an assembly the galvanized finish is not generally uniform in appearance.
ASTM A / AM – 17 Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)
These differences include excessively rusted surfaces, pitted surfaces, machined surfaces, cast iron especially with sand inclusion, cast steel, malleable iron, hot-rolled steel, and cold-rolled steel. Moving Parts and must be subsequently hot-dip galvanized, the designer should be aware that the hot-dip galvanizing process uses Assemblies of Different Materials or Different Surfaces a38.
The requirements of this specification are very similar to those in A, except for the addition of threaded products and embrittlement requirements. Certain elements found in steels are known to have finish.
What are the differences between ASTM A123/A123M and ASTM A385?
Moving parts such as handles or hinges should be galvanized separately and assembled after galvanizing. 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. Inch-pound units and SI units are not necessarily exact equivalents. When an assembly of steel parts or an individual steel part has been designed and fabricated with critical dimensions and must be subsequently hot-dip galvanized, the designer should be aware that the hot-dip galvanizing process chemical cleaning to prepare the surfaces for coating and this may alter the critical dimensions.
This specification covers prime western grade-recycled PWG-R zinc made by recycling zinc secondary materials including but not limited to drosses and skimmings. Types of embrittlement commonly encountered with galvanized steel are related to aging phenomena, cold working, and absorption of hydrogen. Specification for Structural Steel. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Common distorted and warped members of assemblies are sheets or plates atsm by welding or riveting. It may also be known by its trade name, e. This specification covers rolled steel structural shapes for use in building framing or bridges, or for general structural purposes.
The venting shall open 8. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
A — 03 Standard Practice for Providing High-Quality Zinc Coatings Hot-Dip 1 This standard is issued q385 the fixed designation A ; the number immediately following x385 designation indicates the year of original adoption or, in the case of revision, the year of last revision. Remember me on this computer.
A superscript epsilon e indicates an editorial change since the last revision or reapproval.