ASTM B/BM Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and. Find the most up-to-date version of ASTM B at Engineering ASTM B/BM Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings. This.

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Packaging and Package Marking This standard is not included in any packages. One specimen from each piece shall be tested without further treatment, and the other specimen shall be tested after precipitation heat treatment. The testing facility must be able to demonstrate that there is no statistically signi? Standards Subsctiption may be b49 perfect solution.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Number of Tests and Astj 9.

The purchaser shall have the right to perform any of the inspections or tests set forth when such adtm and tests are deemed necessary to ensure that the material conforms to prescribed requirements. 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.

We have no amendments or corrections for this standard. Applicable to any longitudinal surface or edge. Work Item s – proposed revisions of this standard.


ASTM B249/B249M – 18a

When the test specimen has been machined, the retained original surface shall constitute the outer periphery of the bend that shall be made on a radius equal to that dimension of the machined radial to the bend. Subscription pricing is determined by: This standard has been approved for use asm agencies of the Department of Defense.

Specimen Preparation NOTE 1—The arc shall not necessarily be tangent at Points A but shall be substantially symmetrical with the axis of the product, and the product shall be commercially free from sharp, rough, or projecting edges.

Table 3—Diameter tolerances for piston? Your Alert Profile lists the documents that will be monitored. Table 8—Thickness tolerances for rectangular and square bar applicable to Speci?

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? In rectangular specimens of reduced thickness, the outside or tension surface shall be an as fabricated surface. Need more than one copy? 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. Plastic deformation may work harden a material and tend to raise the resistivity, while heating tends to anneal the material with a consequent reduction in resistivity.

Test results for all specimens shall conform to the product speci? When samples are taken during the course of manufacture, sampling of the? To determine compliance with this tolerance, the lengths shall, in case of disagreement, be checked by the following method: Table 2—Tolerances for asttm or distance between parallel surfaces of cold-drawn rod applicable to Speci?

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ASTM BASTM BM铜和铜合金棒材、型材及锻件_百度文库

The values stated in each system of units are not exact equivalents; each system is independent of the other. Rounded Unit for Observed or Calculated Value. For hexagonal and octagonal rods cold-drawn to size, corner radii shall not exceed 1?

Link to Active This link will always route to the current Active version of the standard. Materials shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional mass, diameter, length, straightness, and edge contoursmechanical tensile strength, Rockwell hardness, elongation, and hydrogen aetmelectrical resistivity, chemical composition, and grain size g249.

You may delete a document from your Alert Profile at any time. The corners, A, will usually be sharp but shall not have rough or projecting edges. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Above the yield strength the movement per minute of the testing machine head under load should not exceed 0. Please first verify your email before subscribing to alerts.