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Die Norm ASTM B250/B250M-19 1.10.2019 Ansicht

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ASTM B250/B250M-19

Standard Specification for General Requirements for Wrought Copper Alloy Wire

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NORM herausgegeben am 1.10.2019

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Informationen über die Norm:

Bezeichnung normen: ASTM B250/B250M-19
Ausgabedatum normen: 1.10.2019
SKU: NS-975155
Zahl der Seiten: 10
Gewicht ca.: 30 g (0.07 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM

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Copper products

Die Annotation des Normtextes ASTM B250/B250M-19 :

This specification establishes the general requirements common to wrought copper and copper alloy wires. The materials for manufacture shall be a cast bar, billet, rod, or other form of such purity and soundness as to be suitable for processing by hot working, cold working, and subsequent annealing to produce finished products that meet the specified temper properties and have a uniform wrought structure. Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (diameter, thickness, specific and stock lengths, width, straightness, and edge contour), mechanical (tensile, yield and bend strengths, elongation, and Rockwell hardness), electrical (resistivity and conductivity), chemical composition, and grain size requirements. In the event of conflict between this specification and the individual casting product specifications, the requirements of the casting specification shall take precedence.

Keywords:

copper-alloy wires, flat wires, wires, wrought copper-alloy wires,, ICS Number Code 77.150.30 (Copper products)

Ergänzende Informationen

Significance and Use

12.1 For the purpose of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.

Property	Rounded Unit for Observed or Calculated Value

Dimensions Chemical composition Hardness Electrical resistivity/conductivity	nearest unit in the last right-hand significant digit used in expressing the limiting value

Tensile strength Yield strength	nearest ksi [5 MPa]

Elongation
Below 5 %	nearest multiple of 0.5 %
5 % and over	nearest 1 %

Grain size
Under 0.060 mm	nearest multiple of 0.005 mm
0.060 mm and over	nearest 0.01 mm

1. Scope

1.1 This specification establishes requirements common to wrought copper and copper alloy wire and shall apply to Specifications B16/B16M, B99/B99M, B134/B134M, B159/B159M, B197/B197M, B206/B206M, B272, B301/B301M, B453/B453M, B967/B967M, B974/B974M, and B981/B981M to the extent referenced therein.

1.2 The chemical composition, physical and mechanical properties, and all other requirements not included in this specification shall be prescribed in the product specification.

1.3 Units—Values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other and values from the two systems shall not be combined.

1.4 The following safety hazard caveat pertains only to the test methods described in this specification. 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 appropriate safety, health, and environmental practices and to determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

E118-89(1996)	Standard Test Methods for Chemical Analysis of Copper-Chromium Alloys
E75-76(1996)	Standard Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys
E478-08(2017)	Standard Test Methods for Chemical Analysis of Copper Alloys
E581-17A(2022)e1	Standard Test Methods for Chemical Analysis of Manganese-Copper Alloys (Includes all amendments and changes 9/13/2022).
E121-83(1996)	Standard Test Methods for Chemical Analysis of Copper-Tellurium Alloys
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E54-80(1996)	Standard Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E18-22	Standard Test Methods for Rockwell Hardness of Metallic Materials
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
E3-11(2017)	Standard Guide for Preparation of Metallographic Specimens
B974/B974M-16(2021)	Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire
B967/B967M-18(2023)	Standard Specification for Copper-Zinc-Tin-Bismuth Alloy Rod, Bar and Wire
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
B900-16(2022)	Standard Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government Agencies
B194-22	Standard Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar
B193-20	Standard Test Method for Resistivity of Electrical Conductor Materials
B159/B159M-17	Standard Specification for Phosphor Bronze Wire
B134/B134M-15(2021)	Standard Specification for Brass Wire
B99/B99M-15(2021)	Standard Specification for Copper-Silicon Alloy Wire for General Applications
B16/B16M-19	Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
B206/B206M-12(2017)	Standard Specification for Copper-Nickel-Zinc (Nickel Silver) Wire and Copper-Nickel Alloy Wire
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
B453/B453M-19	Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes
B197/B197M-20e1	Standard Specification for Copper-Beryllium Alloy Wire (Includes all amendments and changes 11/21/2022).
B272-12(2019)	Standard Specification for Copper Flat Products with Finished (Rolled or Drawn) Edges (Flat Wire and Strip)
B301/B301M-13(2020)	Standard Specification for Free-Cutting Copper Rod, Bar, Wire, and Shapes

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