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ASTM A – Designation: A /A M – 02a Standard Speci?cation for Steel Sheet, Aluminum-. Find the most up-to-date version of ASTM A at Engineering ASTM A/AM: Standard Specification for Steel Sheet, Aluminum-Coated, by the Hot-Dip Process.

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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. Values in inch-pound and SI units are not necessarily equivalent. Within the text, SI units are shown in brackets. Each system shall be used independently of the other.

These notes and footnotes excluding those in tables and? It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Current edition approved October 10, Originally published as A — 62 T. It is intended principally for heatresisting applications and also for uses where corrosion resistance and heat are involved.

It is available as a coating on each of the designations of steel sheet listed in 4. NOTE 1—Typical ordering descriptions are as follows: Because of the many variables and changing conditions that are characteristic of continuous hot-dip coating lines, the weight [mass] of coating is not always evenly divided between the two surfaces of a sheet, nor is the coating evenly distributed from edge to edge.

B No minimum means that there are no established minimum requirements for triple- and single-spot tests, but aluminum coating shall be present. The following, as required, shall be used to adequately describe the product required. The purchaser shall specify the appropriate table of thickness tolerances in Speci?

When the amount of vanadium, titanium, or columbium is less than 0. These mechanical property values are nonmandatory. They are solely to provide the purchaser with as much information as possible to make an informed decision on the steel to be speci?


C When a deoxidized steel is required for the application, the purchaser has the option to order CS satm FS to a minimum of 0. E For carbon levels less than or equal to 0. In such cases, the applicable limit for vanadium and columbium shall be 0.

G Shall not be furnished as a stabilized steel.

ASTM A463 Grade FSS-439

H Shall be furnished as a stabilized steel. I Shall contain silicon 1. J Shall contain silicon 1.

Titanium is permitted for SS steels to 0. The minimum requirements only apply to the microalloy elements selected for strengthening of the steel.

C these ranges are to be expected. There are many interrelated factors that affect the ability of a steel to cold form over a given radius under shop conditions. These factors 3 include: If the hardness result is 85 HRB or higher, no tension test is required.

C As there is no discontinuous yield curve, the yield strength should be taken as the stress at 0. D If a higher tensile strength is required, the user should consult the producer. They are intended solely to provide the purchaser with as much information as possible to make an informed decision on satm steel to be speci?

Values outside of these ranges are to be expected. The purchaser may negotiate with the supplier if a speci? B These typical mechanical properties apply to the full range of steel sheet thicknesses. The yield strength tends to increase and some of the formability values tend to decrease as the sheet thickness decreases. E No typical mechanical properties have been established.

This is not considered to be a fault of the steel but is rather a function of the induced cold-work.

For all designations the coating bend test inside diameter shall be equal to twice the thickness of the specimen. Flaking of the coating within 0.

Dimensions and Permissible Variations 9. A One ounce of Type 1 aluminum coating per square foot of surface corresponds to an average coating thickness of 0. All other values in Table X2.

B Wstm [mass] to thickness conversions are reliable to only two signi?

Inch-pound to SI conversions are reliable to? A greater number of digits are shown in Table X2. The former designations also did not re? The new designations are de? These steel characteristics are important to users concerned with the weldability and formability of the coated steel products.


ASTM A Aluminum-Coated Steel, Type I, Drawing Quality

The typical mechanical properties included in the new designation system are those axtm by the tension test. These properties are more predictive of steel formability than other tests, such as x463 hardness test, which may not compensate adequately for product variables such as substrate thickness and coating weight. Some of the reasons for this limited relationship are atsm following: Continuing dialogue between users and producers will have to be maintained to assist in the transition to the new designation system.

A user with concerns about the appropriate coated steel to order for a speci? The relationship between the standards may only be approximate; therefore, the respective documents should be consulted for actual requirements.

Those who use these documents must determine which speci? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. 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. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.