ASTM B248M-12
(Specification)Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
ABSTRACT
This specification establishes the general requirements common to several wrought products including copper and copper-alloy plates, sheets, strips, and rolled bars. The numerical values in this specification are not presented in inch-pound units, but rather, in metric or SI units only. The material for manufacture shall be a cast bar, cake, or slab of such purity and soundness as to be suitable for processing by hot- or cold-working, and annealing to produce a uniform wrought structure in the finished product. The edges shall be slit, sheared, sawed, or rolled, as specified. When rolled edges are required, they may be produced by either rolling or drawing to one of the following specified edge contours: square edges (square corners), rounded corners, rounded edges, and full-rounded edges. Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (thickness, length, width, weight, and straightness), mechanical (tensile and yield strength, Rockwell hardness, and elongation), electrical (resistivity and conductivity), chemical composition, and grain size requirements.
SIGNIFICANCE AND USE
For the purposes of determining compliance with the specified limits for requirements of the properties listed in the following table and for dimensional tolerances, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29:
PropertyRounded Unit for Observed or
Calculated Value Chemical composition nearest unit in the last Hardness right-hand significant digit Electrical resistivity used in expressing Electrical conductivity the limiting value Tensile strength nearest 5 MPa Yield strength nearest 5 MPa Elongation: nearest 1 % Grain size: Under 0.060 mm nearest multiple of 0.005 mm 0.060 mm and over nearest 0.01 mm
SCOPE
1.1 This specification establishes the general requirements common to several wrought product specifications. Unless otherwise specified in the purchase order or in an individual specification, these general requirements shall apply to copper and copper-alloy plate, sheet, strip, and rolled bar supplied under each of the following product specifications issued by ASTM: B36/B36M, B96/B96M, B103/B103M, B121/B121M, B122/B122M, B152/B152M, B169/B169M, B194, B422, B465, B534, B591, B592, B694, B740, B747, B768, and B888.
1.2 Units—This specification is the companion specification to inch-pound Specification B248.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B248M −12
Standard Specification for
General Requirements for Wrought Copper and Copper-
1
Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
This standard is issued under the fixed designation B248M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* B122/B122M Specification for Copper-Nickel-Tin Alloy,
Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-
1.1 This specification establishes the general requirements
Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
common to several wrought product specifications. Unless
B152/B152M Specification for Copper Sheet, Strip, Plate,
otherwise specified in the purchase order or in an individual
and Rolled Bar
specification, these general requirements shall apply to copper
B169/B169M Specification for Aluminum Bronze Sheet,
and copper-alloy plate, sheet, strip, and rolled bar supplied
Strip, and Rolled Bar
under each of the following product specifications issued by
ASTM: B36/B36M, B96/B96M, B103/B103M, B121/B121M, B193 Test Method for Resistivity of Electrical Conductor
B122/B122M, B152/B152M, B169/B169M, B194, B422, Materials
B465, B534, B591, B592, B694, B740, B747, B768, and
B194 SpecificationforCopper-BerylliumAlloyPlate,Sheet,
2
B888.
Strip, and Rolled Bar
B248 Specification for General Requirements for Wrought
1.2 Units—This specification is the companion specification
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
to inch-pound Specification B248.
Bar
2. Referenced Documents
B422 Specification for Copper-Aluminum-Silicon-Cobalt
Alloy, Copper-Nickel-Silicon-Magnesium Alloy, Copper-
2.1 The following documents of the issue in effect on date
of material purchase form a part of this specification to the Nickel-Silicon Alloy, Copper-Nickel-Aluminum-
Magnesium Alloy, and Copper-Nickel-Tin Alloy Sheet
extent referenced herein:
3 and Strip
2.2 ASTM Standards:
B465 SpecificationforCopper-IronAlloyPlate,Sheet,Strip,
B36/B36M Specification for Brass Plate, Sheet, Strip, And
and Rolled Bar
Rolled Bar
B534 Specification for Copper-Cobalt-Beryllium Alloy and
B96/B96M Specification for Copper-Silicon Alloy Plate,
Copper-Nickel-Beryllium Alloy Plate, Sheet, Strip, and
Sheet, Strip, and Rolled Bar for General Purposes and
Rolled Bar
Pressure Vessels
B591 Specification for Copper-Zinc-Tin and Copper-Zinc-
B103/B103M Specification for Phosphor Bronze Plate,
Sheet, Strip, and Rolled Bar Tin-Iron-NickelAlloys Plate, Sheet, Strip, and Rolled Bar
B121/B121M Specification for Leaded Brass Plate, Sheet, B592 Specification for Copper-Zinc-Aluminum-Cobalt
Strip, and Rolled Bar
Alloy, Copper-Zinc-Tin-IronAlloy Plate, Sheet, Strip, and
Rolled Bar
1 B694 Specification for Copper, Copper-Alloy, Copper-Clad
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
Bronze (CCB), Copper-Clad Stainless Steel (CCS), and
Sheet, and Strip.
Copper-Clad Alloy Steel (CAS) Sheet and Strip for
Current edition approved April 1, 2012. Published May 2012. Originally
Electrical Cable Shielding
approved in 1980. Last previous edition approved in 2007 as B248M – 07. DOI:
10.1520/B0248M-12.
B740 Specification for Copper-Nickel-Tin Spinodal Alloy
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
Strip
expansion of the former standard designation system accomplished by the addition
B747 Specification for Copper-Zirconium Alloy Sheet and
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate
composition variations of the base alloy.
Strip
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
B768 Specification for Copper-Cobalt-Beryllium Alloy and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Copper-Nickel-Beryllium Alloy Strip and Sheet
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. B846 Terminology for Copper and Copper Alloys
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B248M−12
B888 Specification for CopperAlloy Strip for Use in Manu- 4.1.1 The material of manufacture shall be a cast bar, cake,
facture of Electrical Connectors or Spring Contacts slab of such purity and soundness as to be suitable for
E8/E8M Test Methods for Tension Testing of Metallic Ma- processing into the products to the product sp
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B248M–07 Designation: B248M – 12
Standard Specification for
General Requirements for Wrought Copper and Copper-
1
Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
This standard is issued under the fixed designation B248M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification establishes the general requirements common to several wrought product specifications. Unless otherwise
specified in the purchase order or in an individual specification, these general requirements shall apply to copper and copper-alloy
plate, sheet, strip, and rolled bar supplied under each of the following product specifications issued by ASTM: B36/B36M,
B96/B96M, B103/B103M, B121/B121M, B122/B122M, B152/B152M, B169/B169M, B194, B422, B465, B534, B591, B592,
2
B694, B740, B747, and , B768, and B888.
1.2 Units—This specification is the companion specification to inch-pound Specification B248.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
3
2.2 ASTM Standards:
B36/B36M Specification for Brass Plate, Sheet, Strip, And Rolled Bar
B96/B96M SpecificationforCopper-SiliconAlloyPlate,Sheet,Strip,andRolledBarforGeneralPurposesandPressureVessels
B103/B103M Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
B121/B121M Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar
B122/B122M Specification for Copper-Nickel-TinAlloy, Copper-Nickel-ZincAlloy (Nickel Silver), and Copper-NickelAlloy
Plate, Sheet, Strip, and Rolled Bar
B152/B152M Specification for Copper Sheet, Strip, Plate, and Rolled Bar
B169/B169M Specification for Aluminum Bronze Sheet, Strip, and Rolled Bar
B193 Test Method for Resistivity of Electrical Conductor Materials
B194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B422 Specification for Copper-Aluminum-Silicon-Cobalt Alloy, Copper-Nickel-Silicon-Magnesium Alloy, Copper-Nickel-
Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Alloy, and Copper-Nickel-Tin Alloy Sheet and Strip
B465 Specification for Copper-Iron Alloy Plate, Sheet, Strip, and Rolled Bar
B534 Specification for Copper-Cobalt-BerylliumAlloy and Copper-Nickel-BerylliumAlloy Plate, Sheet, Strip, and Rolled Bar
B591 Specification for Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nickel Alloys Plate, Sheet, Strip, and Rolled Bar
B592 Specification for Copper-Zinc-Aluminum-Cobalt Alloy, Copper-Zinc-Tin-Iron Alloy Plate, Sheet, Strip, and Rolled Bar
B694 Specification for Copper, Copper-Alloy, Copper-Clad Bronze (CCB), Copper-Clad Stainless Steel (CCS), and Copper-
Clad Alloy Steel (CAS) Sheet and Strip for Electrical Cable Shielding
B740 Specification for Copper-Nickel-Tin Spinodal Alloy Strip
B747 Specification for Copper-Zirconium Alloy Sheet and Strip
B768 Specification for Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Strip and Sheet
B846 Terminology for Copper and Copper Alloys
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
Sheet, and Strip.
Current edition approved Oct.April 1, 2007.2012. Published October 2007.May 2012. Originally approved in 1980. Last previous edition approved in 20062007 as
B248M – 067. DOI: 10.1520/B0248M-07.10.1520/B0248M-12.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of a
prefix “C” and a suffix “00”.“00.” The suffix can be used to accommodate composition variations of the base alloy.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page:
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.