ASTM B/BM: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed). ASTM B Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)1_机械/仪表_工程科技_专业资料。ASTM 标准. ASTM B/BM Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed). standard by ASTM International.

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B — 06 Standard Speci? A number in parentheses indicates the year of last reapproval.

ASTM B – 09 Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

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. The following copper and copper alloys are included: The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.

Copper-nickel alloys Aetm and C are intended for welded applications with seawater exposure. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish 1 This speci?

Current edition approved Feb. Originally approved in Last previous edition approved in as B — D, Robbins Ave.

Material atsm Manufacture 6. NOTE 3—Due to the discontinuous nature of the processing of castings into wrought products, it is not always practical to identify speci?

C and C shall be heat treated as speci? By agreement between manufacturer and purchaser, limits may be established and analysis required for unnamed elements.

C, C, C, C, Cthe sum of results shall be C and C shall be furnished as: Mechanical Property Requirements 9. C and C and speci? C and C shall depend only on tensile strength. C shall be heat treated as follows: A B Silver counting as copper. Includes oxygen-free or deoxidized grades with deoxidizers such as phosphorus, boron, lithium, or others in amount agreed upon.

C37700 Copper Alloys Material Property Data Sheet – Product availability and request a quote

C This includes copper plus silver plus tellurium. D Other deoxidizers may be used as agreed upon, in which case phosphorus need not be present. E This includes copper plus silver plus sulfur plus phosphorus. F For boiler code application maximum iron content shall be 4. G Iron content shall not exceed nickel content. H Carbon shall be 0.


ASTM B283 Grade C37700

C Up to 11? C Up to 6 Special Government Requirements Dimensions and Permissible Variations If approved by the purchaser, the forgings may be bundled or boxed and each bundle or box provided with a metal or oil-proof tag showing the above information.

Sampling—The lot size, portion size, and selection of sample pieces shall asm as follows: For forgings exceeding lbs h283each individual forging shall b83 a lot. Tensile tests shall be performed on each forging over lbs kg.

Alternatively, samples may be taken from separately forged test bars of the same heat as the forgings in the lot provided the wall thickness and amount of working for the test bar are equivalent to those for the forgings. The axis of the tensile specimen shall be located at any point midway between the center and the surface of solid forgings and at any point midway between the inner and outer surfaces of the wall of hollow forgings, and shall be parallel to the direction of greatest grain?

Liquid Penetrant Inspection—When speci? Notch length shall not exceed 1 in. Notches shall be made either in the piece to be examined or in a separate defect-free specimen of the same size within 61?

The position and amplitude of the response from each notch shall be marked on the instrument screen or a transparent overlay, and these marks shall be used as the evaluation reference.

Indications that appear between these points shall be evaluated on the basis of a straight line joining the two peak amplitudes. Holes are to be drilled to midsection and the bottom of the hole shall be parallel to the entrant surface.

Recalibration shall be performed at least once per 8-h shift. The shear wave entrant angle shall be such to ensure re? For contact testing, the search unit shall be? The product also shall be inspected with a longitudinal wave test from the external circumferential and end surfaces.

Material shall be tested using a square, rectangular, or circular transducer having an effective area of 1 in.

In the event of disagreement on the degree of back re? Forgeability RatingA 65 65 65 90 90 90 75 75 75 75 75 75 40 80 80 95 75 40 85 1 The values shown represent the general aastm and are intended for information to enable the designer to better understand the forging characteristics of these various alloys.


Intricate parts are more likely to be available in alloys having a high rating. B One or more of these elements may be present as speci? They are given merely to indicate to the purchaser the various forging types and some dimensional toler- ances used on commercially designed hot-pressed forgings up to 2 lbs 0. For tolerances applicable to heavier forgings, the manufacturers should be consulted.

Solid Solid, with symmetrical cavity Solid, with eccentric cavity Solid, deep extrusion Hollow, deep extrusion Thin section, short up to 6 in. Thin section, long over 6 in. Therefore, the data in Table X3.

They are typical of forgings up to 2 lbs 0. The derived SI unit for force is the newton N sstm, which is de? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

C Copper Alloys Material Property Data Sheet – Product availability and request a quote

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.

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