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 ASTM-A – EDITION – SUPERSEDED — See the following: ASTM-.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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Articles Dynamic Strain Aging of Steels: NOTE 8—Depending upon product design or material thickness, or both,? Metallic coated carbon steel wire coated at size for mechanical springs Composite ribbed steel pipe, pre-coated and polyethylene lined sewer pipe application Flexible poly vinyl chloride PVC gaskets used in connection of water closets to sanitary drainage system. Introduction to Total Materia 7 th February The average of no less than? Inspection, Rejection, and Retest 9.
If a zinc alloy is used as the primary feed to the galvanizing bath, then the base material used to make that alloy shall conform to Speci? NOTE 1—Each specimen comprises nominally one third of the total surface area of the article.
ASTM Standard List: Coated Steels
For purposes of this speci? The thickness of coating thus obtained is the test article coating thickness, or in the case of a specimen removed from a test article, is the specimen average coating thickness. The other values are based on conversions using the following formulas: Finding ASTM 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.
Practice A provides guidance on steel selection and discusses the effects of various elements in steel compositions for example, siliconthat in? NOTE 4—The coating thickness grades in Table 1 represent the minimum value obtainable with a high level of con?
A number in parentheses indicates the year of last reapproval. NOTE astk which are prepared for galvanizing by abrasive cleaning will generally develop a thicker coating with a moderately rougher surface. New Developments in Total Materia 10 th January NOTE 3—The galvanizer may a3886 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?
In this case, the minimum number of specimens from each lot shall be as follows: 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 thickness thus determined is a point value. These inclusions are raised surfaces and are easily knocked off FIG. The average of the? 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.
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 using a master feed alloy.
DataPLUS, a new module providing corrosion data, material joining information, material dimensions and tolerances and coatings information ast, drive even more accurate material selections! Coatings shall conform to the requirements a3866 Speci? NOTE 6—The requirements for the? Inchpound units and SI units are not necessarily exact equivalents. For asym specimen as described in 3. Do not use testing carried out at edges or corners points of lowest coating adhesion to determine adhesion of the coating.
For test by the purchaser after delivery, the lot consists of the single order or the single delivery load, whichever is the smaller, unless the lot identity, established in accordance with the above, is maintained and clearly indicated in the shipment astj the galvanizer.
This shall be achieved by an in-plant inspection program designed to maintain the coating thickness,? Our mission is simple; to make Total Materia the one-stop place and first choice of engineers world wide.
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?
ASTM specifications represent a consensus among producers, specifiers, fabricators, and users of steel mill products. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
The zinc coating on threaded components of articles galvanized under this speci? Current edition approved October 10, For thickness testing purposes, the entire surface area of each unit of product constitutes a specimen.
ASTM A – Withdrawn Specification for Zinc Coating (Hot-Dip) on Assembled Steel Products
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Unless otherwise agreed upon between the galvanizer and the purchaser, or established within this speci?
The thickness of coating thus obtained is the test article coating thickness. Enter a phrase to search satm Search Knowledge Base Enter a phrase to search for: Internal threads are not prohibited from being tapped or retapped after galvanizing.
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. It is the responsibility of the purchaser to heat treat or otherwise allow for the possibility of such embrittling phenomena.