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J Minimum yield strength for tube, The heat-treated sample may be tested prior to 4 days natural aging but if they fail to conform to the T42 temper properties, the test may be repeated after completion of 4 days natural aging without prejudice. Marking for shipment of such material shall be in accordance with Fed. Conformance shall be determined by zstm samples taken when the ingots are poured, or samples taken from the?
As much of the rejected material as possible shall be returned to the producer or supplier by the purchaser. B21-08 reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Retest and Rejection For a tube having a diameter larger than can be properly mounted for polishing and examination, the portions of the cross section polished for examination may consist of an arc about 1?
Other methods may be used only when no published ASTM test method is available. For small sizes of tubes, a cut-out portion may be? Originally approved in Elongation of cut-out round specimens is measured in 43 specimen diameter. A number in parentheses indicates the year of last reapproval. Wire, Rod, Bar and Pro?
On approval of the purchaser, however, the producer or the supplier may use a system of statistical quality control for such examination. L Only in tube form. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Refer to Terminology B for de?
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For the products described, mechanical property limits for the respective size ranges are based on the analyses of at least data from standard production material with no more than ten data from a given lot. 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.
Unalloyed aluminum contains a minimum of E These alloys are also produced in the F temper for which no tensile properties are speci? C The discontinuity class limits are de?
G Material in the T42 and T62 tempers is not available from the material producers. A designation not in con? I Manganese plus chromium shall total 0.
K Bismuth and lead shall be 0. Using a magni?
All specimens so selected for retest shall meet the requirements of the speci? The correctness of cladding alloy used can usually be veri? This standard has been approved for use by agencies of the Department of Defense. The electrical conductivity shall be determined in accordance with Practice E in the following locations: Chemical milling may be used on?
O H H up through 5. Should any analysis by the producer or the purchaser establish that an Others element exceeds the limit of Each or that the aggregate of several Others elements exceeds the limit of Total, the material shall be considered nonconforming. C Elongation of full-section and cut-out sheet-type specimens is measured in 2 in.
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The cladding composition is more difficult to determine because of the relatively thin layer and because of diffusion of core elements to the cladding.
NOTE 3—It is standard practice in the United States aluminum industry to determine conformance to the chemical composition limits prior to further processing of ingots into wrought products. A reasonably accurate determination of the core composition can be made if the cladding is substantially removed prior to analysis. However, such analysis is not required and may not cover all metallic Others elements.
Analysis shall be made for the elements for which limits aatm shown in this table. However, should subsequent testing by the purchaser establish that the material does not meet these requirements, the material shall be subject to rejection.
Specimens shall axtm selected at random and shall be, if possible, a minimum of 2 by 4 in. Sampling shall be in accordance with Practice E B The thickness of any element of a pro? Tensile Properties of Material from the Producer 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. Test specimens may be prepared by machining a? The purchaser shall have the right to perform any of the inspections and tests set forth in this speci?
Any requirement not so covered is subject to negotiation between the producer and purchaser. Current edition approved Oct. The applicable level shall be as speci?