ASTM-A › Zinc Coating (Hot-Dip), Assembled Steel Products. ASTM-A – EDITION – SUPERSEDED — See the following: ASTM-. in Specifications A and A This ASTM Standards A47/ A47M 1 This specification is under the jurisdiction of ASTM Committee A05 on. ASTM AAM Standard Specification for Zinc – Standard A and A shall be done using the metric equivalent of the test.
|Published (Last):||16 February 2006|
|PDF File Size:||8.50 Mb|
|ePub File Size:||2.12 Mb|
|Price:||Free* [*Free Regsitration Required]|
In addition, the purchaser should anticipate the need for test batches or extra preparation steps, or both, such as blasting before galvanizing or other methods, to attempt asstm reach the higher requirements with consistency.
Current edition approved October 10, The accuracy of both methods will be in? NOTE 3—The galvanizer may choose to add trace amounts of certain elements for example, aluminum, nickel, and tin to the zinc bath to help in the processing of certain reactive steels or to enhance the cosmetic appearance of the? The weight of coating per unit area thus determined is converted to equivalent coating thickness values in accordance with Table 2 rounding up or down as appropriate.
NOTE 5—Inaccessible surface areas are those which cannot be reached for appropriate surface preparation and application of repair materials as described in Practice A This standard has been approved for use by agencies of the Department of Defense.
Finding A3866 materials and standards from specific designation systems in the Total Materia database With Total Materia finding information about a metal standard specification, its current status and the materials it defines is one click away.
Release DataPLUS, a new module providing corrosion data, material joining information, material dimensions and tolerances and coatings information helps drive even more accurate material selections! The thickness of coating thus obtained is the test article coating thickness.
The use of these trace elements is permitted provided that the bulk chemistry of the galvanizing bath is at least Where products consisting of various material thicknesses or categories are galvanized, the coating thickness grades for each thickness range and material category of material shall be as astk in Table 1.
The other values are based on conversions using the following formulas: Asstm the case of orders in SI units, all testing and inspection 1 This speci? ASTM specifications represent a consensus among producers, specifiers, fabricators, and users of steel mill products.
A number in parentheses indicates the year of last reapproval. The elements can be added to the galvanizing bath as part of a pre-alloyed zinc feed, or they can be added to the bath by the galvanizer asttm a master feed alloy. NOTE 9—Although some material may be formed after galvanizing, in general the zinc coating on the articles covered by this speci?
Surface conditions related to de? Otherwise, the test specimens shall be selected at random from each lot. The specifying of a86 for adhesion and embrittlement shall be subject to mutual agreement between the galvanizer and purchaser. The average of the?
These tests shall not be required unless strong evidence of embrittlement is present. The sample consists of one or more test articles. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Likewise, do not use removal of small particles of the coating by paring or whittling to determine failure. If Test Method B is used, the level of sampling shall be agreed upon between the galvanizer and the purchaser at the time the coating order is placed. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
ASTM A – Withdrawn Specification for Zinc Coating (Hot-Dip) on Assembled Steel Products
Introduction to Total Materia Integrator 7 th March Consultation between the designer, fabricator, and galvanizer at appropriate stages in the design and fabrication process will reduce future problems. Part Two Medium Manganese Steels: To get started, click on the standard list button in the menu bar. Practices AAand A provide guidance for steel fabrication for optimum hot dip galvanizing and shall be complied with in both design and fabrication.
The minimum average coating thickness grade for any specimen shall be one coating grade below that required for the appropriate material category and thickness in Table 1. Materials and Manufacture 5. Coatings shall conform to the requirements of Speci? Marks in the zinc coating caused by tongs or other items used in handling the article during the galvanizing operation shall not be cause for rejection unless such marks have exposed the base metal and the bare metal areas exceed allowable maximums from 6.
ASTM Standard List: Coated Steels
While most coating thicknesses will be in excess of those values, some materials in each category may be less reactive for example, because of chemistry or surface condition than other materials of the steel category spectrum. Except for local excess coating thickness which would interfere with the use of the product, or make it dangerous to handle edge tears or spikesrejection for nonuniform coating shall be made only for plainly visible excess coating not related to design factors such as holes, joints, or special drainage problems see Note 6.
Enter a phrase to search for: Total Materia has allowed us to solve in a definite way all problems we had for the search of alternate materials in foreign countries. Visual inspection of the coating shall be made for compliance with the requirements.
This article contains a list of standards that covers among other things: Within the text of this speci?