ASTM B36/B36M-23

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: B36/B36M − 18 B36/B36M − 23
Standard Specification for
Brass Plate, Sheet, Strip, And Rolled Bar
This standard is issued under the fixed designation B36/B36M; 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 brass (copper-zinc alloy) plate, sheet, strip, and rolled bar of the following
alloys:
Copper Alloy Previous Nominal Composition
UNS No. Trade Name
Copper, % Zinc, %
C21000 Gilding, 95 % 95
C22000 Commerical Bronze, 90 % 90
C22600 Jewerly Bronze, 87 ⁄2 % 87.5
C23000 Red Brass, 85 % 85
C24000 Low Brass, 80 % 80
C26000 Cartridge Brass, 70 % 70
C26800 Yellow Brass, 66 % 66
C27200 { 63
C28000 Muntz Metal, 60 % 60
Copper Alloy Type
UNS No. of Metal
C21000 Gilding
C22000 Commerical Bronze
C22600 Jewerly Bronze
C23000 Red Brass
C24000 Low Brass
C26000 Cartridge Brass
C26800 Yellow Brass
C27200 {
C28000 Muntz Metal
1.2 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 may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.
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. 1, 2018Oct. 1, 2023. Published November 2018October 2023. Originally approved in 1920. Last previous edition approved in 20132018
as B36/B36MB36/B36M – 18.–13. DOI: 10.1520/B0036_B0036M-18.10.1520/B0036_B0036M-23.
*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
B36/B36M − 23
1.3.1 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 determine the applicability of
regulatory limitations prior to use.
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)
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E478 Test Methods for Chemical Analysis of Copper Alloys
3. General Requirements
3.1 The following sections of Specification B248 or 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 Specimen Preparation
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 Packaging and Package Marking
3.2 In addition, when a section with a title identical to that referenced in 3.1, appears in this specification, it contains additional
requirements which supplement those appearing in Specification B248 or B248M.
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.
B36/B36M − 23
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:
5.1.1 ASTM designation and year of issue;
5.1.2 Copper alloy UNS No. designation;
5.1.3 Temper (Section 7);
5.1.4 Dimensions: thickness, width, and edges;
5.1.5 How furnished: straight lengths or coils;
5.1.6 Quantity: total weight or total length or number of pieces of each size; and
5.1.7 Intended application.
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 Heat identification or traceability details,
5.2.2 Certification,
5.2.3 Test Report,
5.2.4 If product is purchased for agencies of the U.S. Government (see the Supplemental Requirements section of Specification
B248 or B248M for additional requirements, if specified).
6. Chemical Composition
6.1 The material shall conform to the chemical compositional requirements in Table 1 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.
6.3 For alloys in which zinc is listed as “remainder,” either copper or zinc may be taken as the difference between the sum of
results of all other elements determined and 100 %. When all elements in Table 1 are determined, the sum of the results shall be
TABLE 1 Chemical Requirements
Copper Alloy UNS No. Copper, % Lead, max, % Iron, max, % Zinc
C21000 94.0 to 96.0 0.05 0.05 remainder
C22000 89.0 to 91.0 0.05 0.05 remainder
C22600 86.0 to 89.0 0.05 0.05 remainder
C23000 84.0 to 86.0 0.05 0.05 remainder
C24000 78.5 to 81.5 0.05 0.05 remainder
C26000 68.5 to 71.5 0.07 0.05 remainder
A
C26800 64.0 to 68.5 0.09 0.05 remainder
B
C27200 62.0 to 65.0 0.07 0.07 remainder
C
C28000 59.0 to 63.0 0.09 0.07 remainder
A
Material shall be free from beta constituent when examined at a magnification of 75 diameters.
B
Small amounts of beta constituent, if present, may interfere in some instances with severe forming or drawing; therefore, suitability for forming or drawing should be
established between manufacturer and purchaser.
C
It is anticipated that this material will contain the beta constituent that may interfere with severe forming or drawing operations.
B36/B36M − 23
as shown in the following table:
B36/B36M − 23
Copper Plus Named
Copper Alloy UNS No. Elements, % min
C21000 99.8
C22000 99.8
C22600 99.8
C23000 99.8
C24000 99.8
C26000 99.7
C26800 99.7
C27200 99.7
C28000 99.7
7. Temper
7.1 As Hot Rolled Temper M20—The standard temper of sheet and plate and produced by hot rolling as designated in Table 2 or
Table 3.
7.2 Cold Rolled Tempers H01 to H10—The standard tempers of cold rolled material are as designated in Table 2 or Table 3 with
the prefix “H.” Former designations and the standard designations as detailed in Classification B601 are shown.
7.3 Annealed Tempers OS015 to OS120—The standard tempers of annealed material are as designated in Tables 4 and 5. Nominal
grain size and the standard designations are detailed in Classification B601 are shown.
7.4 Annealed-To-Temper O81 or O82—The standard tempers of annealed-to-temper material are as designated in Table 6 or Table
7 with the prefix “O.” Former designations and the standard designations as detailed in Classification B601 are shown.
7.5 Special or nonstandard tempers are subject to negotiation between the manufacturer and purchaser (see 5.1.3).
8. Grain Size for Annealed Tempers
8.1 Grain size shall be the standard requirement for all product in the annealed tempers.
8.2 Acceptance or rejection based upon grain size shall depend only on the average grain size of a test specimen taken from each
of two sample portions, and each specimen shall be within the limits prescribed in Table 4 when determined in accordance with
Test Methods E112.
8.3 The average grain size shall be determined on a plane parallel to the surface of the product.
9. Mechanical Property Requirements
9.1 Tensile Strength Requirements of Cold Rolled Tempers
9.1.1 Product furnished under this specification shall conform to the tensile requirements prescribed in Table 2 or Table 3 when
tested in accordance with Test Methods E8/E8M. The test specimens shall be taken so that the longitudinal axis of the specimen
is parallel to the direction of rolling.
9.1.2 Acceptance or rejection based upon mechanical properties shall depend only on tensile strength.
9.2 Tensile Strength Requirements of Annealed-to-Tempers
9.2.1 Product furnished under this specification shall conform to the tensile requirements prescribed in Table 6 or Table 7 when
tested in accordance with Test Methods E8/E8M. The test specimens shall be taken so the longitudinal axis of the specimen is
parallel to the direction of rolling.
9.2.2 Acceptance or rejection based upon mechanical properties shall depend only on tensile strength.
9.3 Rockwell Hardness Requirement
B36/B36M − 23
TABLE 2 Tensile Strength (inch-pound units) Requirements and Approximate Rockwell Hardness Values for Rolled Temper (H) Product
NOTE 1—Plate is generally available in only the as hot-rolled (M20) temper. Required properties for other tempers shall be agreed upon between the
manufacturer and the purchaser at the time of placing the order.
A
Rolled Temper Tensile Strength, ksi Approximate Rockwell Hardness
Temper Designation B Scale Superficial 30-T
0.0200.020 in. 0.0120.012 in.
to 0.036 in. Over 0.036 in. to 0.028 in. Over 0.028 in.
Standard Former Min Max
incl incl
Min Max Min Max Min Max Min Max
Copper Alloy UNS No. C21000
M20 As hot-rolled 32 42 . . . . . . . .
H01 Quarter hard 37 47 20 48 24 52 34 51 37 54
H02 Half-hard 42 52 40 56 44 60 46 57 48 59
H03 Three-quarter-hard 46 56 50 61 53 64 52 60 54 62
H04 Hard 50 59 57 64 60 67 57 62 59 64
H06 Extra hard 56 64 64 70 66 72 62 66 63 67
H08 Spring 60 68 68 73 70 75 64 68 65 69
H10 Extra spring 61 69 69 74 71 76 65 69 66 70
Copper Alloy UNS No. C22000
M20 As hot-rolled 33 43 . . . . . . . .
H01 Quarter-hard 40 50 27 52 31 56 34 51 37 54
H02 Half-hard 47 57 50 63 53 66 50 59 52 61
H03 Three-quarter-hard 52 62 59 68 62 71 55 62 58 64
H04 Hard 57 66 65 72 68 75 60 65 62 67
H06 Extra hard 64 72 72 77 74 79 64 68 66 69
H08 Spring 69 77 76 79 78 81 67 69 68 70
H10 Extra spring 72 80 78 81 80 83 68 70 69 71
Copper Alloy UNS No. C22600
H01 Quarter-hard 42 52 29 58 29 58 39 58 39 58
H02 Half-hard 48 58 52 68 52 68 54 64 54 64
H03 Three-quarter-hard 53 63 61 73 61 73 59 68 59 68
H04 Hard 58 67 67 77 67 77 64 70 64 70
H06 Extra hard 65 73 74 81 74 81 68 73 68 73
H08 Spring 70 78 78 83 78 83 71 74 71 74
H10 Extra spring 74 82 81 86 81 86 73 76 73 76
Copper Alloy UNS No. C23000
M20 As hot-rolled 37 47 . . . . . . . .
H01 Quarter-hard 44 54 33 58 37 62 42 57 45 60
H02 Half-hard 51 61 56 68 59 71 56 64 58 66
H03 Three-quarter-hard 57 67 66 73 69 76 63 68 65 70
H04 Hard 63 72 72 78 74 80 67 71 68 72
H06 Extra hard 72 80 78 83 80 85 70 74 71 75
H08 Spring 78 86 82 85 84 87 74 76 75 77
H10 Extra spring 82 90 84 87 86 89 75 77 76 78
Copper Alloy UNS No. C24000
M20 As hot-rolled 41 51 . . . . . . . .
H01 Quarter-hard 48 58 38 61 42 65 42 57 45 60
H02 Half-hard 55 65 59 70 62 73 56 64 58 66
H03 Three-quarter-hard 61 71 69 76 72 79 63 68 65 70
H04 Hard 68 77 76 82 78 84 68 72 69 73
H06 Extra hard 78 87 83 87 85 89 72 75 73 76
H08 Spring 85 93 87 90 89 92 75 77 76 78
H10 Extra spring 89 97 88 91 90 93 76 78 77 79
Copper Alloy UNS No. C26000
M20 As hot-rolled 41 51 . . . . . . . .
H01 Quarter-hard 49 59 40 61 44 65 43 57 46 60
H02 Half-hard 57 67 60 74 63 77 56 66 58 68
H03 Three-quarter-hard 64 74 72 79 75 82 65 70 67 72
H04 Hard 71 81 79 84 81 86 70 73 71 74
H06 Extra hard 83 92 85 89 87 91 74 76 75 77
H08 Spring 91 100 89 92 90 93 76 78 76 78
H10 Extra spring 95 104 91 94 92 95 77 79 77 79
Copper Alloy UNS No. C26800
M20 As hot-rolled 40 50 . . . . . . .
H01 Quarter-hard 49 59 40 61 44 65 43 57 46 60
H02 Half-hard 55 65 57 71 60 74 54 64 56 66
H03 Three-quarter-hard 62 72 70 77 73 80 65 69 67 71
H04 Hard 68 78 76 82 78 84 68 72 69 73
H06 Extra-hard 79 89 83 87 85 89 73 75 74 76
H08 Spring 86 95 87 90 89 92 75 77 76 78
H10 Extra spring 90 99 88 91 90 93 76 78 77 79
Copper Alloy UNS No. C27200
M20 As hot-rolled 41 51 . . . . . . . .
H01 Quarter-hard 49 59 40 61 44 65 43 57 46 60
H02 Half-hard 56 66 57 74 60 76 54 67 56 68
B36/B36M − 23
TABLE 2 Continued
A
Rolled Temper Tensile Strength, ksi Approximate Rockwell Hardness
Temper Designation B Scale Superficial 30-T
0.0200.020 in. 0.0120.012 in.
to 0.036 in. Over 0.036 in. to 0.028 in. Over 0.028 in.
Standard Former Min Max
incl incl
Min Max Min Max Min Max Min Max
H03 Three-quarter-hard 63 73 71 78 74 81 64 70 66 71
H04 Hard 70 80 76 82 78 84 67 72 68 73
H06 Extra hard 81 91 82 87 85 89 71 75 72 76
Copper Alloy UNS No. C28000
M20 As hot-rolled 40 55 . . . . . . . .
H01 Quarter-hard 50 62 40 65 45 70 45 65 45 70
H02 Half-hard 58 70 50 75 52 80 50 70 50 75
H03 Three-quarter-hard 60 75 55 80 55 82 52 78 55 80
H04 Hard 70 85 60 85 60 87 55 80 55 82
H06 Extra hard 82 95 65 92 65 90 60 85 60 85
A
Rockwell hardness values apply as follows: the B scale values apply to metal 0.020 in. and over in thickness, and the 30-T scale values apply to metal 0.012 in. and
over in th
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