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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When tolerances are speci? The tolerance on the radius shall be one fourth the thickness of the bar. Should the lot b429 of less than? Rounded Unit for Observed or Calculated Value. This specification establishes the general requirements common to wrought copper and copper alloy rods, bars, shapes, and forgings.

The number of samples taken for the determination of composition shall be as follows: To determine compliance with this tolerance, the lengths shall, in case of disagreement, be checked by the following method: Work Item s – proposed aatm of this standard. The values stated in each system of units are not exact equivalents; each system is independent of the other.

Measure the departure from straightness at each end and at the center by means of a dial gage mounted on a suitable movable block and set successively at the three points to be measured while rotating the shaft slowly and carefully to avoid vibration. Current edition approved Oct. NOTE 1—The length tolerances b24 this table are all plus; if all minus tolerances are desired, use the same values; if tolerances are desired plus and minus, halve the values given.


Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Already Subscribed to this document. The diameter or thickness of the specimen shall be at least 1?

Dimensions, Mass and Permissible Variations 6. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either satm revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. If you feel that your b2249 have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. If the pH value is not speci? The distance from corner to corner12 shall be the basis for acceptance or rejection.

ASTM BASTM BM铜和铜合金棒材、型材及锻件_百度文库

Standards Subsctiption may be the perfect solution. Packaging and Package Marking The minimum weight of the composite sample shall be g. This standard is also available to be included in Standards Subscriptions. You can download and open this bb249 to your own computer but DRM prevents opening this file on another computer, including a networked server.

In which case, the nature of the facilities needed to satisfy the inspector representing the purchaser that the product is being furnished in accordance with the product speci? Local departure from straightness should be measured with a 1-ft [mm] straightedge and a feeler gage. One specimen from each piece shall be tested without further treatment, and the other specimen shall be tested after precipitation heat treatment.


The product shall be well cleaned and free from dirt. C, C, and C They are usually 10 or 12 ft [ or mm] and subject to established length tolerances.

ASTM B249/B249M – 18a

Combining values from the two systems may result in non-conformance with the standard. Cand B Thickness Tolerances, Plus and Minus,A in. Over 2 to 4 [50 to ] Incl 0.

The testing facility must be able to demonstrate that there is no statistically signi? Table 5—Tolerances for diameter or distance between parallel surfaces of as-extruded rod and bar applicable to Speci?

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Your Alert Profile lists the documents that will be monitored. NOTE 3—Blank spaces in the tolerance tables indicate either that the material generally is not available or that no tolerances are established.

Except as otherwise speci? Add to Alert PDF. They are subject to minimum length and maximum weight requirements.