ASTM B283/B283M-22

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: B283/B283M − 20 B283/B283M − 22
Standard Specification for
Copper and Copper-Alloy Die Forgings (Hot-Pressed)
This standard is issued under the fixed designation B283/B283M; 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 and copper alloy die forgings produced by the hot pressing method.
The following copper and copper alloys are included:
Copper or Copper Alloy UNS No. Name
C11000 copper
C14500 copper-tellurium
C14700 copper-sulfur
C27450 plumbing brass
C27451 plumbing brass
C27453 copper zinc alloy
C28500 copper-zinc brass
C35330 leaded brass
C36300 copper-zinc-lead
C36500 leaded Muntz metal
C37000 free-cutting Muntz metal
C37700 forging brass
C46400 naval brass
C46500 naval brass, arsenical
C46750 tin brass
C48200 medium leaded naval brass
C48500 leaded naval brass
C48600 naval brass
C48640 DZR brass
C48645 DZR tin brass
C49250 copper-zinc-bismuth alloy
C49255 copper-zinc-bismuth-nickel alloy
C49260 copper-zinc-bismuth alloy
C49265 copper-zinc-tin-bismuth, low leaded
C49300 copper-zinc-tin-bismuth alloy
C49340 copper-zinc-tin-bismuth alloy
C49345 copper-zinc-tin-bismuth, low leaded
C49350 copper-zinc-tin-bismuth alloy
C49355 bismuth brass
C61900 aluminum bronze
C62300 aluminum bronze, 9 %
C63000 aluminum-nickel bronze
C63200 aluminum-nickel bronze
C64200 aluminum-silicon bronze
C64210 aluminum-silicon bronze, 6.7 %
C65500 high-silicon bronze (A)
C65680 high-silicon bronze
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,
Wire, Shapes and Forgings.
Current edition approved April 1, 2020Oct. 1, 2022. Published April 2020October 2022. Originally approved in 1953. Last previous edition approved in 20192020 as
B283/B283M–19a.–20. DOI: 10.1520/B0283_B0283M–20.10.1520/B0283_B0283M-22.
*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
B283/B283M − 22
C67500 manganese bronze (A)
C67600 . . .
C69300 copper-zinc-silicon
C69410 copper-zinc-silicon
Copper or Copper Alloy UNS No. Name
C69850 copper-zinc-silicon
C70620 copper-nickel 90-10
C71520 copper-nickel 70-30
C77400 nickel silver, 45-10
C87700 silicon bronze
C87710 silicon bronze
Copper Alloy EN 1412 Nos. Name
CW612N forging brass
CW617N forging brass
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in
each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other and values from the two systems shall not be combined.
NOTE 1—Nominal composition and relative forgeability ratings are given in Appendix X1. Copper-nickel alloys C70620 and C71520 are intended for
welded applications with seawater exposure.
NOTE 2—Guidelines for design and development of forgings are included in Appendix X2.
NOTE 3—Wrought product intended for hot forging is described in Specification B124/B124M.
1.3 The following safety caveat pertains only to Section 10 of 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 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:
B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
E478 Test Methods for Chemical Analysis of Copper Alloys
2.2 Other Standards:
ASME Boiler and Pressure Vessel Code
EN 1412 Copper and Copper Alloys – European Numbering System
ISO 7602 Determination of Tellurium Content (High Content)—Flame Atomic Absorption Spectrometric Method
JIS H 1068:2005 Method for Determination of Bismuth in Copper and Copper Alloys (Japanese Industrial Standards)
2.3 Military Standards:
MIL-STD-792 Identification Marking Requirements for Special Purpose Components
NAVSEA T9074-AS-GIB-010/271 Requirements for Nondestructive Testing Method
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’sstandard’s Document Summary page on the ASTM website.
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.
Available from EN Standard Store, Krimicka 134, 318 13 Pilsen, Czech Republic, https://www.en-standard.eu/.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Available from Japanese Standards Association (JSA), Mita MT Bldg., 3-13-12 Mita, Minato-ku, Tokyo, 108-0073, Japan, http://www.jsa.or.jp.
Available from DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA 19111-5094, http://quicksearch.dla.mil/.
B283/B283M − 22
3. General Requirements
3.1 The following sections of Specification B249/B249M constitute a part of this specification:
3.1.1 Terminology;
3.1.2 Materials and Manufacture;
3.1.3 Workmanship, Finish, and Appearance;
3.1.4 Sampling;
3.1.5 Number of Tests and Retests;
3.1.6 Specimen Preparation;
3.1.7 Test Methods;
3.1.8 Significance of Numerical Limits;
3.1.9 Inspection;
3.1.10 Rejection and Rehearing;
3.1.11 Certification;
3.1.12 Test Reports;
3.1.13 Packaging and Package Marking; and
3.1.14 Supplementary Requirements.
3.1.15 In addition, when a section with a title identical to one of those referenced in 3.1, above, appears in this specification, it
contains additional requirements that supplement those appearing in Specification B249/B249M.
4. Terminology
4.1 Definitions:
4.1.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
4.2 Definitions of Terms Specific to This Standard:
4.2.1 hot pressed forging, n—a product made by pressing a heated blank or section of wrought or cast copper or copper alloy in
a closed impression die.
5. Ordering Information
5.1 Include the following information when placing orders for products to this specification, as applicable:
5.1.1 ASTM designation and year of issue;
5.1.2 Copper or Copper Alloy UNS No. or EN 1412 No. designation (Scope);
5.1.3 Drawing showing the shape dimensions and tolerances (Dimensions and Permissible Variations);
5.1.4 Temper (as specified herein);
5.1.5 Quantity: total weight or number of pieces for each form, temper, and copper or copper alloy;
B283/B283M − 22
5.1.6 When product is purchased for agencies of the U.S. Government (as specified herein); and
5.1.7 When product must adhere to the requirements of ASME Boiler and Pressure Vessel Code (Mechanical Property
Requirements).
5.2 The following requirements are optional and shall be specified in the contract or purchase order.
5.2.1 Certification (as specified herein and Supplementary Requirements),
5.2.2 Mill test report (as specified in Specification B249/B249M), and
5.2.3 Ultrasonic inspection report (Supplementary Requirements).
6. Materials and Manufacture
6.1 Materials:
6.1.1 The material of manufacture shall be a form of rods, billets, or blanks cut from cast or wrought material of one of the copper
or copper alloys listed in the Scope of this specification and of such purity and soundness as to be suitable for processing into the
products prescribed herein.
6.1.2 In the event heat identification or traceability is required, the purchaser shall specify the details desired.
NOTE 4—Due to the discontinuous nature of the processing of castings into wrought products, it is not always practical to identify specific casting analysis
with a specific quantity of finished material.
6.2 Manufacture:
6.2.1 The product shall be manufactured by hot pressing material between the upper and lower sections of a set of dies conforming
to the configuration defined by the purchaser’s submitted drawings.
6.2.2 Product of Copper Alloy UNS No. C63000 and C63200 shall be heat treated (as specified herein).
7. Chemical Composition
7.1 The material shall conform to the chemical composition requirements in Table 1 for the Copper or Copper Alloy UNS No.
designation specified in the ordering information.
7.2 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.
7.2.1 For alloys in which copper is listed as “remainder,” copper is the difference between the sum of results of all elements
determined and 100 %.
7.2.2 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 %.
7.3 When all the elements in Table 1 are determined for Copper Alloy C65680, the sum of results shall be 99.2 % min. When all
elements in Table 1 are determined for Copper Alloy UNS Nos. C36500, C37000, C46400, C46500, C48200, C48500, C48600,
the sum of results shall be 99.6 % min; for Copper Alloy UNS No. C28500, the sum of results shall be 99.1 % min; for EN 1412
Nos. CW612N and CW617N, the sum of the results shall be 99.8 % min; and for all other alloys, the sum of results shall be 99.5 %
min.
8. Temper
8.1 The standard tempers for products described in this specification are as follows:
B283/B283M − 22
TABLE 1 Chemical Requirements
Copper or
Composition, %
Copper Alloy
Nickel
UNS or
Copper Lead Tin Iron Aluminum Silicon Manganese Zinc Sulfur Tellurium Phosphorus Arsenic Bismuth
(incl Co)
EN 1412 No.
A
C11000 99.90 min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B C D
C14500 99.90 min . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.40–0.7 0.004–0.012 . . . . . .
B E D
. . . . . . . . . . . . . . . . . . . . . . . . 0.20–0.50 . . . . . . . . .
C14700 99.90 min 0.002–0.005
C27450 60.0–65.0 0.25 max . . . 0.35 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C27451 61.0–65.0 0.25 max . . . 0.35 max . . . . . . . . . . . . remainder . . . . . . 0.05–0.20 . . . . . .
C27453 61.5–63.5 0.25 max 0.15 max 0.15 max . . . . . . . . . . . . remainder . . . . . . . . . 0.02–0.15
C28500 57.0–59.0 0.25 max . . . 0.35 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C35330 59.5–64.0 1.5–3.5 . . . . . . . . . . . . . . . . . . remainder . . . . . . . . . 0.02–0.25 . . .
C36300 61.0–63.0 0.25–0.7 . . . 0.15 max . . . . . . . . . . . . remainder . . . . . . 0.04–0.15 . . . . . .
C36500 58.0–61.0 0.25–0.7 0.25 max 0.15 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C37000 59.0–62.0 0.8–1.5 . . . 0.15 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C37700 58.0–61.0 1.5–2.5 . . . 0.30 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C46400 59.0–62.0 0.20 max 0.50–1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C46500 59.0–62.0 0.20 max 0.50–1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . 0.02–0.06 . . .
F
C46750 59.2–62.5 0.25 max 1.00–1.80 0.10 max 0.50 max . . . . . . . . . remainder . . . . . . 0.05–0.15 . . . . . .
C48200 59.0–62.0 0.40–1.0 0.50–1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C48500 59.0–62.0 1.3–2.2 0.50–1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . .
C48600 59.0–62.0 1.0–2.5 0.30–1.5 . . . . . . . . . . . . . . . remainder . . . . . . . . . 0.02–0.25 . . .
G
C48640 59.0–62.0 1.5–3.0 0.50–2.0 0.40 max . . . . . . . . . remainder . . . . . . 0.05–0.25 . . . . . .
0.3 max
G
C48645 60.0–63.0 1.0–2.5 0.10–1.5 0.30 max . . . . . . . . . remainder . . . . . . 0.02–0.25 . . . . . .
0.10–1.0
H
C49250 58.0–61.0 0.09 max 0.30 max 0.50 max . . . . . . . . . . . . remainder . . . . . . . . . . . . 1.8–2.4
I G
C49255 58.0–60.0 0.09 max 0.50 max 0.10 max 0.3 max . . . 0.10 max . . . remainder . . . . . . 0.10 max . . . 1.7–2.9
H
58.0–63.0 0.09 max 0.50 max 0.50 max . . . . . . 0.10 max . . . remainder . . . . . . 0.05-0.15 . . . 0.50–1.8
C49260
H A
C49265 58.0–62.0 0.09–0.25 0.50 max 0.30 max . . . . . . 0.10 max . . . remainder . . . . . . 0.05–0.12 . . . 0.50–1.3
J G
C49300 58.0–62.0 0.09 max 1.0–1.8 0.10 max 0.3 max . . . 0.10 max . . . remainder . . . . . . . . . . . . 0.5–2.5
H
C49340 60.0–63.0 0.09 max 0.50–1.5 0.12 max . . . . . . 0.10 max . . . remainder . . . . . . 0.05-0.15 . . . 0.50–2.2
H A
0.09–0.25 0.50–1.5 0.30 max . . . . . . 0.10 max . . . remainder . . . . . . 0.05–0.12 . . . 0.50–1.3
C49345 60.0–64.0
K
C49350 61.0–63.0 0.09 max 1.5–3.0 0.12 max . . . . . . 0.30 max . . . remainder . . . . . . 0.04-0.15 . . . 0.50–2.5
L
C49355 63.0–69.0 0.09 max 0.50-2.0 0.10 max . . . . . . 1.0-2.0 0.10 max 27.0–35.0 . . . . . . . . . . . . 0.50–1.5

B283/B283M − 22
TABLE 1 Continued
Copper or
Composition, %
Copper Alloy
Nickel
UNS or
Copper Lead Tin Iron Aluminum Silicon Manganese Zinc Sulfur Tellurium Phosphorus Arsenic Bismuth
(incl Co)
EN 1412 No.
M
C61900 remainder 0.02 max 0.6 max 3.0–4.5 . . . 8.5–10.00 . . . . . . 0.8 max . . . . . . . . . . . . . . .
C62300 remainder . . . 0.6 max 2.0–4.0 1.0 max 8.5–10.0 0.25 max 0.50 max . . . . . . . . . . . . . . . . . .
C63000 remainder . . . 0.20 max 2.0–4.0 4.0–5.5 9.0–11.0 0.25 max 1.5 max 0.30 max . . . . . . . . . . . . . . .
N
C63200 remainder 0.02 max . . . 3.5–4.3 4.0–4.8 8.7–9.5 0.10 max 1.2–2.0 . . . . . . . . . . . . . . . . . .
C64200 remainder 0.05 max 0.20 max 0.30 max 0.25 max 6.3–7.6 1.5–2.2 0.10 max 0.50 max . . . . . . . . . 0.09 max . . .
C64210 remainder 0.05 max 0.20 max 0.30 max 0.25 max 6.3–7.0 1.50–2.0 0.10 max 0.50 max . . . . . . . . . 0.09 max . . .
C65500 remainder 0.05 max . . . 0.8 max 0.6 max . . . 2.8–3.8 0.50–1.3 1.5 max . . . . . . . . . . . . . . .
G
C65680 84.0 min 0.09 max 0.30 max 0.30 max 0.10 max 0.30 max 2.5–4.5 0.01–0.09 7.0–11.0 . . . . . . 0.05–0.15 . . . . . .
C67500 57.0–60.0 0.20 max 0.50–1.5 0.8–2.0 . . . 0.25 max . . . 0.05–0.50 remainder . . . . . . . . . . . . . . .
C67600 57.0–60.0 0.50–1.0 0.50–1.5 0.40–1.3 . . . . . . . . . 0.05–0.50 remainder . . . . . . . . . . . . . . .
C69300 73.0–77.0 0.09 max 0.20 max 0.10 max 0.10 max . . . 2.7–3.4 0.10 max remainder . . . . . . 0.04–0.15 . . . . . .
C69410 81.0 min 0.09 max . . . 0.20 max . . . . . . 3.5–4.5 . . . 11.0–15.0 . . . . . . . . . . . . . . .
G
C69850 67.5–69.0 0.09 max 0.20 max 0.10 max 0.10 max . . . 1.53–2.0 0.10 max remainder . . . . . . 0.04–0.15 . . . . . .
O A
0.02 max . . . 1.0–1.8 9.0–11.0 . . . . . . 1.0 max 0.50 max 0.02 max . . . 0.02 max . . . . . .
C70620 86.5 min
O A
0.02 max . . . 0.40–1.0 29.0–33.0 . . . . . . 1.0 max 0.50 max 0.02 max . . . 0.02 max . . . . . .
C71520 65.0 min
C77400 43.0–47.0 0.09 max . . . . . . 9.0–11.0 . . . . . . . . . remainder . . . . . . . . . . . . . . .
P
87.5 min 0.09 max 2.0 max 0.50 max 0.25 max . . . 2.5–3.5 0.8 max 7.0–9.0 . . . . . . 0.15 max . . . . . .
C87700
P
C87710 84.0 min 0.09 max 2.0 max 0.50 max 0.25 max . . . 3.0–5.0 0.8 max 9.0–11.0 . . . . . . 0.15 max . . . . . .
G
CW612N 59.0–60.0 1.6–2.5 0.3 max 0.3 max 0.3 max 0.05 max . . . . . . remainder . . . . . . . . . . . . . . .
G
CW617N 57.0–59.0 1.6–2.5 0.3 max 0.3 max 0.05 max . . . . . . remainder . . . . . . . . . . . . . . .
0.3 max
A
Silver counting as copper.
B
Includes oxygen-free or deoxidized grades with deoxidizers (such as phosphorus, boron, lithium, or others) in amount agreed upon.
C
This includes copper plus silver plus tellurium plus phosphorus.
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
Includes antimony 0.05–0.15.
G
Not including Co.
H
Includes cadmium 0.001 % max.
I
Includes cadmium 0.0075 % max, selenium 0.02–0.07.
J
Includes cadmium 0.0075 % max, antimony 0.50 % max, and selenium 0.20 % max.
K
Includes antimony 0.02–0.10 %.
L
Includes Boron 0.001 % max.
M
For boiler code application maximum iron content shall be 4.0 %.
N
Iron content shall not exceed nickel content.
O
Carbon shall be 0.05 % max.
P
Antimony shall be 0.10 Max.
B283/B283M − 22
8.1.1 As hot forged-air cooled M10,
8.1.2 As forged-quenched M11,
8.1.2 Hot forged and annealed O20.
8.2 UNS Alloy Nos. C63000 and C63200 shall be furnished as:
8.2.1 Quench hardened and temper annealed, TQ50.
8.2 Alloys C70620 and C71520 shall be furnished in the following tempers:
8.2.1 As hot forged-air cooled M10, unless,
8.2.2 Hot forged and annealed O20 is specified.
8.3 Other tempers shall be subjected to agreement between the manufacturer and the purchaser.
9. Mechanical Property Requirements
9.1 Mechanical property requirements are subject to agreement between the manufacturer and the purchaser.
9.2 Product furnished to this specification for UNS Alloy No. C70620 and C71520 and specified to meet the requirements of the
ASME Boiler and Pressure Vessel Code shall conform to the tensile requirements prescribed in Table 2, when tested in accordance
with Test Methods E8/E8M.
9.2.1 Acceptance or rejection based upon mechanical properties for UNS Alloy No. C70620 and C71520 shall depend only on
tensile strength.
10. Heat Treatment
10.1 Product produced from Copper Alloy UNS No. Nos. C63000 and C63200 shall be heat treated as follows:
10.1.1 Heat to 1550 °F [843 °C] minimum for 1 h minimum and quench in water or other suitable medium.
10.1.2 Temper Anneal at 1300 °F 6 25 °F [704 °C 6 14 °C] for 3 to 9 h as required to meet mechanical properties.
10.2 Heat treatment of other alloys, if needed, to be established by specific agreement between the supplier and purchaser.
11. Special Government Requirements
11.1 Product purchased for agencies of the U.S. Government shall conform to the additional requirements prescribed in the
Supplementary Requirements section of this specification.
12. Dimensions, Mass, and Permissible Variations
12.1 The dimensions and tolerances for forgings shall be those agreed upon between the manufacturer and the purchaser, and such
dimensions and tolerances shall be specified on the drawings which form a part of the contract or purchase order.
NOTE 5—Typical tolerances commonly used for forgings are shown in Table X2.1.
NOTE 6—Typical deviations for mismatch, flatness, ejector marks, flash projection, and die parting line are included in the Appendix X2.
13. Workmanship, Finish, and Appearance
13.1 The forging process gives to the forgings a surface condition related to the hot forging process itself. Ridges, indentations,
B283/B283M − 22
TABLE 2 Tensile Requirements
Yield Strength at 0.5 %
Tensile Strength, min
Diameter or Section Thickness, Temper Designation Elongation in 4 × Diameter or
Extension Under Load, min
in. [mm] Standard Former Thickness of Specimen, min, %
A A
ksi [MPa] ksi [MPa]
Copper Alloy UNS No. C27450, C27451
All Sizes M10 As Hot Forged-Air Cooled 50 [345] 18 [124] 25
Copper Alloy UNS No. C27453
All Sizes M10 As Hot Forged-Air Cooled 49 [340] 29 [200] 30
Copper Alloy UNS No. C28500
All Sizes M10 As Hot Forged-Air Cooled 58 [400] 24 [165] 20
Copper Alloy UNS Nos. C35330 and C37700 and EN 1412 Alloy Nos. CW612N and CW617N
Up to 1 ⁄2 [38.1], incl M10 As Hot Forged-Air Cooled 50 [345] 18 [124] 25
Over 1 ⁄2 [38.1] M10 As Hot Forged-Air Cooled 46 [317] 15 [103] 30
Copper Alloy UNS No. C36300
All sizes M10 As Hot Forged-Air Cooled 50 [345] 18 [124] 25
Copper Alloy UNS No. C46400
All sizes M10 As Hot Forged-Air Cooled 52 [358] 22 [152] 25
Copper Alloy UNS No. C46500
All sizes M10 As Hot Forged-Air Cooled 63 [435] 30 [207] 40
Copper Alloy UNS No. C46750
All sizes M10 As Hot Forged-Air Cooled 45.7 [315] 22.0 [152] 15
O20 Hot Forged and Annealed 45.7 [315] 22.0 [152] 15
Copper Alloy UNS Nos. C48200, C48500, C48600, C49250, C49255, C49260, C49265, and C49300
All sizes M10 As Hot Forged-Air Cooled 52 [358] 22 [152] 25
Copper Alloy UNS No. C48640, C48645
M10 As Hot Forged-Air Cooled 45.7 [315] 18 [124] 15
O20 Hot Forged and Annealed 45.7 [315] 18 [124] 15
Copper Alloy UNS Nos. C49340, C49345, and C49350
All sizes M10 As Hot Forged-Air Cooled 50 [345] 20 [140] 20
Copper Alloy UNS No. C49355
All Sizes M10 As Hot Forged-Air Cooled 50 [345] 20 [140] 15
All Sizes O20 Hot Forged and Annealed 50 [345] 20 [140] 15
Copper Alloy UNS No. C64200
Up to 1 ⁄2 [38.1], incl M10 As Hot Forged-Air Cooled 70 [483] 25 [172] 30
Over 1 ⁄2 [38.1] M10 As Hot Forged-Air Cooled 68 [469] 23 [156] 35
Copper Alloy UNS No. C65680
All Sizes M10 As Hot Forged-Air Cooled 43.5 [300] 14.5 [100] 8
All Sizes O20 Hot Forged and Annealed 29.0 [200] 11.6 [80] 15
Copper Alloy UNS No. C69300
All sizes M10 As Hot Forged-Air Cooled 65 [450] 26 [180] 15
Copper Alloy UNS No. C69850
All sizes M10 As Hot Forged-Air Cooled 55 [379] 22 [151] 15
Copper Alloy UNS No. C70620
Up to 6 [152], incl M10 As Hot Forged-Air Cooled 45 [310] 18 [124] 30
Over 6 [152] M10 As Hot Forged-Air Cooled 40 [276] 15 [103] 30
All sizes O20 Hot Forged and Annealed 40 [276] 15 [103] 30
Copper Alloy UNS No. C71520
Up to 6 [152], incl M10 As Hot Forged-Air Cooled 50 [345] 20 [138] 30
Over 6 [152] M10 As Hot Forged-Air Cooled 45 [310] 18 [124] 30
All sizes O20 Hot Forged and Annealed 45 [310] 18 [124] 30
Copper Alloy UNS No. C69410, C87700 and C87710
All sizes M10 as Hot Forged-Air Cooled 40 [310] 15 [103] 15
A
See Appendix X5.
folds, shocks from automatic hot forging, smooth flow lines due to brass rod slug positioning and material flow, that do not have
deleterious effects in use, shall not be cause for rejection.
13.2 Customer-specific requirements for as-forged surface quality shall be by agreement between the purchaser and supplier.
14. Test Methods
14.1 Chemical Analysis:
14.1.1 In cases of disagreement, test methods for chemical analysis shall be subject to agreement between the manufacturer or
supplier and the purchaser. The following table is a list of published methods, some of which may no longer be viable, which along
with others not listed, may be used subject to agreement.
Element ASTM Test Method
B283/B283M − 22
Aluminum E478
Antimony E62
Arsenic E62
Bismuth JIS H 1068:2005
Copper E478
Iron <1.3 % E478, E75 for CuNi
>1.3 % E478, E75 for CuNi
Lead E478 (AA)
Manganese E62, E75 for CuNi
Nickel <5 % E478 (photometric)
>5 % E478 (gravimetric)
Phosphorus E62
Silicon E62 (perchloric acid)
Tin <1.3 % E478
>1.3 % E478
Zinc <2 % E478 (AA)
>2 % E478 (titrimetric)
ISO Test Method 7602
Tellurium
NOTE— < = less than: > = greater than
B283/B283M − 22
14.1.2 Test method(s) to be followed for the determination of element(s) resulting from contractual or purchase order agreement
shall be as agreed upon between the manufacturer or supplier and purchaser.
15. Certification
15.1 Certification to this specification is mandatory for product purchased for ASME Boiler and Pressure Vessel applications.
16. Keywords
16.1 copper and copper alloy die forgings (hot pressed); die forgings (hot pressed); EN 1412 No. CW612N; EN 1412 No.
CW617N; UNS No. C11000; UNS No. C14500; UNS No. C14700; UNS No. C27450; UNS No. C27451; UNS No. C27453; UNS
No. C28500; UNS No. C35330; UNS No. C36300; UNS No. C36500; UNS No. C37000; UNS No. C37700; UNS No. C46400;
UNS No. C46500; UNS No. C46750; UNS No. C48200; UNS No. C48500; UNS No. C48600; UNS No. C48640; UNS No.
C48645; UNS No. C49250; UNS No. C49255; UNS No. C49260; UNS No. C49265; UNS No. C49300; UNS No. C49340; UNS
No. C49345; UNS No. C49350; UNS No. C49355; UNS No. C61900; UNS No. C62300; UNS No. C63000; UNS No. C63200;
UNS No. C64200; UNS No. C64210; UNS No. C65500; UNS No. C65680; UNS No. C67500; UNS No. C67600; UNS No.
C69300; UNS No. C69410; UNS No. C69850; UNS No. C70620; UNS No. C71520; UNS No. C77400; UNS No. C87700; UNS
No. C87710
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirements shall apply only when specified by the purchase
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