ASTM B96/B96M-20

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: B96/B96M − 16 B96/B96M − 20
Standard Specification for
Copper-Silicon Alloy Plate, Sheet, Strip, and Rolled Bar for
General Purposes and Pressure Vessels
This standard is issued under the fixed designation B96/B96M; 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*
1.1 This specification establishes the requirements for copper-silicon alloy plate, sheet, strip, and rolled bar for drawing, forming,
stamping, bending, and general engineering applications, and for pressure vessel applications. The alloys involved are copper
alloys UNS Nos. C65100, C65400, and C65500.
1.2 When product is ordered for ASME Boiler and Pressure Vessel Code applications, consult the Code for applicable alloys.
1.3 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI
units are shown in brackets. The values stated in each system mayare not benecessarily exact equivalents; therefore, to ensure
conformance with the standard, each system shall be used independently of the other. Combiningother, and values from the two
systems may result in non-conformance with the standard.shall not be combined.
1.4 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
2.1 ASTM Standards:
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
(Metric)
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
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 April 1, 2016Oct. 1, 2020. Published April 2016October 2020. Originally approved in 1934. Last previous edition approved in 20112016 as
B96/B96M – 11.B96/B96M – 16. DOI: 10.1520/B0096_B0096M-16.10.1520/B0096_B0096M-20.
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB–96 in Section 11 of that Code.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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
B96/B96M − 20
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E118 Test Methods for Chemical Analysis of Copper-Chromium Alloys (Withdrawn 2010)
E478 Test Methods for Chemical Analysis of Copper Alloys
2.2 ASME Code:
ASME Boiler and Pressure Vessel Code
3. General Requirements
3.1 The following sections of either Specifications Specification B248 or Specification B248M constitute a part of this
specification:
3.1.1 Terminology
3.1.2 Materials and Manufacture
3.1.3 Dimensions, Mass, and Permissible Variations
3.1.4 Workmanship, Finish, and Appearance
3.1.5 Sampling
3.1.6 Number of Tests and Retests
3.1.7 Test Specimens
3.1.8 Test Methods
3.1.9 Significance of Numerical Limits
3.1.10 Inspection
3.1.11 Rejection and Rehearing
3.1.12 Certification
3.1.13 Test Reports
3.1.14 Product Identification
3.1.15 Packing and Package Marking
3.1.16 Supplementary Requirements
3.2 In addition, when a section with a title identical to that referenced in 3.1 above appears in this specification, it contains
additional requirements which supplement those appearing in either Specifications Specification B248 or Specification B248M.
4. Terminology
4.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
5. Ordering Information
5.1 Include the following specified choices when placing orders for product under this specification, as applicable:
The last approved version of this historical standard is referenced on www.astm.org.
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
B96/B96M − 20
5.1.1 ASTM designation and year of issue,issue;
5.1.2 Copper [Alloy] UNS No. designation (Section 1),);
5.1.3 Temper (Section 7),);
5.1.4 Dimensions, Thickness, Width, and Length (Section 10),);
5.1.5 How furnished: straight lengths or coils,coils;
5.1.6 Quantity—total weight or total length or number of pieces of each size (10.7),);
5.1.7 Intended application,application;
5.1.8 Finish (11.2),); and
5.1.9 Type of edge, if required (slit, sheared, sawed, square corners, round corners, rounded edges, or full rounded edges) (10.6).
5.2 The following options are available but may not be included unless specified at the time of placing of the order when required.
5.2.1 Certification,Certification;
5.2.2 Test Report,Report;
5.2.3 If product is purchased for agencies of the U.S. government (see the Supplementary Requirements section of Specification
B248 or Specification B248M for additional requirements, if specified);
5.2.4 Product identification for ASME Boiler and Pressure Vessel Code applications (Specifications(Specification B248 or
Specification B248M),);
5.2.5 If product is ordered for ASME Boiler and Pressure Vessel Code application, (applications (see 1.2, 10.1, 10.2.1, and
10.7.2),);
5.2.6 Whether 0.2 % yield strength is required (Tables 1 and 2),); and
5.2.6 If product is purchased for agencies of the U.S. Government (see the Supplementary Requirements section of Specifications
B248 or B248M for additional requirements, if specified), and
5.2.7 If specification number must be shown on package marking.
6. Chemical Composition
6.1 The material shall conform to the chemical composition requirements in Table 3 for the copper [alloy] UNS No. designation
specified in the ordering information.
6.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and
purchaser, limits may be established and analysis required for unnamed elements.
TABLE 1 Tensile Strength Requirements and Approximate Rockwell Hardness and Grain Size Values
for Pressure Vessel Applications (Inch-Pound Units)
A
Yield Strength at 0.5 % Approximate
Yield Strength at
Temper Designation
Tensile Strength, Approximate Grain
B
Extension Under Load, 0.2 % offset, min, Elongation, min % Rockwell F
ksi Size, mm
Code Name ksi
ksi min Hardness
Copper Alloy UNS No. C65500
C
O61 Annealed 50–67 18 18 40 70–82 0.110 max
A
See 5.2.55.2.6.
B
Elongation in 2 in.
C
No minimum grain size requirement is specified, but all annealed material shall be fully recrystallized.
B96/B96M − 20
TABLE 2 Tensile Strength Requirements and Approximate Rockwell Hardness and Grain Size Values
for Pressure Vessel Applications (SI Units)
Yield Strength
Temper Designation
A
Tensile at 0.5 % Approximate
Yield Strength at
Approximate
B
Strength, Extension 0.2 % offset, min, Elongation, min % Rockwell F
Grain Size, mm
MPa
MPa Under Load, Hardness
Code Name
MPa min
Copper Alloy UNS No. C65500
C
O61 Annealed 345–460 125 125 40 70–82 0.110 max
A
See 5.2.55.2.6.
B
Elongation in 50 mm.
C
No minimum grain size requirement is specified, but all annealed material shall be fully recrystallized.
TABLE 3 Chemical Requirements
Composition, %
Element Copper Alloy UNS No.
C65100 C65400 C65500
Copper, incl silver remainder remainder remainder
Silicon 0.8–2.0 2.7–3.4 2.8–3.8
Manganese 0.7 max . . . 0.50–1.3
Tin . . . 1.2–1.9 . . .
Chromium . . . 0.01–0.12 . . .
Zinc, max 1.5 0.50 1.5
Iron, max 0.8 . . . 0.8
A
Nickel, max . . . . . . 0.6
Lead, max 0.05 0.05 0.05
A
Incl cobalt.
6.3 These composition limits do not preclude the presence of other elements. By agreement between manufacturer and purchaser,
limits may be established andFor alloys in which copper is listed as “remainder,” copper is the difference between the sum of
results of all elements determined and 100 %. When all elements in Table 3 analysis required for unnamed elements.are
determined, the sum of results shall be 99.5 % min.
6.2.1 For alloys in which copper is listed as “remainder,” copper is the difference between the sum of results of all elements
determined and 100 %. When all the elements in Table 3 are determined, the sum of results shall be 99.5 % min.
7. Temper
7.1 The standard tempers for products described in this specification are in Tables 1 and 2 and Tables 4 and 5.
7.1.1 Hot rolled temper M20.
7.1.2 Hot rolled and rerolled temper M25.
7.1.3 Cold rolled tempers H01 to H14.
7.1.4 Annealed tempers O50 or O61.
8. Grain Size for Annealed Tempers
8.1 The approximate grain size values for annealed tempers given in Tables 1 and 2 and Tables 4 and 5 are for general information
and shall not be used as a basis for product rejection.
9. Mechanical Property Requirements
9.1 Tensile Strength Requirements:
9.1.1 Product furnished under this specification shall conform to the tensile requirements prescribed in Table 1, Table 2, Table 4,
or Table 5, when tested in accordance with Test Methods E8/E8M.
B96/B96M − 20
TABLE 4 Tensile Strength Requirements and Approximate Rockwell Hardness and Grain Size Values (Inch-Pound Units)
Temper Designation Tensile Strength, Approximate Rockwell Hardness Approximate Grain
ksi Size, mm
Code Name F Scale B Scale
Copper Alloy UNS No. C65100
O61 Annealed 38–45 45–55 . . . 0.050–0.120
A
O50 Light anneal 40–50 50–75 . . . 0.060 max
H01 Quarter
...