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 ASTM-A – EDITION – SUPERSEDED — See the following: ASTM-.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.
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ASTM Standard List: Coated Steels :: Total Materia Article
The other values are based on conversions using the following formulas: NOTE 9—Although some material may be formed after galvanizing, in general the zinc coating on the articles covered by this speci? NOTE 2—The presence in steels and weld metal, in certain percentages, of some elements such as silicon, carbon, and phosphorus tends to accelerate the growth of the zinc-iron alloy layer so that the coating may have a matte?
These designations often apply to specific products, for example A is applicable to cold-heading quality carbon steel wire for tapping or sheet metal screws. Practices AAand A provide guidance for steel fabrication for optimum hot dip galvanizing and shall be complied with in both design and fabrication. Our mission is simple; to make Total Materia the one-stop place and first choice of engineers world wide.
Materials and Manufacture 5. The adhesion shall be considered inadequate if the coating? 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. The specifying of tests for adhesion and embrittlement shall be subject to mutual agreement between the galvanizer and purchaser. A number in parentheses indicates the year of last reapproval.
Plain holes of 1? In such cases, the precision and accuracy of the coating thickness measuring technique should be taken into consideration when rejecting such articles for coating thickness below that required by this speci?
ASTM-A | Zinc Coating (Hot-Dip), Assembled Steel Products | Document Center, Inc.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Such inaccessible areas, for example, would be the internal surfaces of certain tanks, poles, pipes, tubes, and so forth.
The requirements for malleable iron castings to be galvanized shall be as stated in Speci? Current edition approved October 10, This standard has been approved for use by agencies of the Department of Defense.
Click here to see more. Total Materia remains the only tool which will be used for this purpose. 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?
By simply clicking the materials hot link, you can see a list of metal materials defined by the selected standard. 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.
ASTM Standard List: Coated Steels
The mass, shape, and amount of cold working of the product being galvanized may also affect this condition. Practice A provides guidance on steel selection and discusses the effects of various elements in steel compositions for example, siliconthat in?
Otherwise, the test specimens shall be selected at random from each lot. It is the atm of the purchaser to heat treat or otherwise allow for the possibility of such embrittling phenomena.
These inclusions are raised surfaces and are easily knocked off FIG. The average of the? Therefore, some articles may have a coating grade at or close to the minimum requirement shown in Table 1.
Part Two Medium Manganese Steels: The use of these a836 elements is permitted provided that the bulk chemistry of the galvanizing bath is at least For magnetic thickness measurements, specimen excludes any area of the surface which is subject to processes such as?
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. The galvanizing of separate reinforcing steel bars shall be in accordance with Speci?
With Total Materia finding information about a metal standard specification, its current status and the materials it defines is one click away. Purchasers desiring a guarantee of heavier coatings than aa386 minimum thicknesses shown herein should use the special requirements see 4.
In the case of orders in SI units, the values ast Table 1, shall be applicable as metric units in micrometres. Introduction to Total Materia 7 th February These tests shall not be required unless strong evidence of embrittlement is present. The zinc coating on threaded components of articles galvanized under this speci? To get started, click on the standard list button in the menu bar. Enter a phrase to search for: 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 z386 using a master feed alloy.
If you feel that your comments have not received a fair hearing adtm should make your views known to the ASTM Committee on Standards, at the address shown below. New Developments in Total Materia 10 th January The result list consists of over ASTM metal standards.
The sample consists of one or more test articles.