ASTM B224-16(2022)
(Classification)Standard Classification of Coppers
Standard Classification of Coppers
SIGNIFICANCE AND USE
4.1 This classification lists the types of copper available from refineries or fabricators, or both, defines the common terms used, and gives the characteristics of many of the coppers available. It is useful to the neophyte looking for the appropriate copper for a particular application.
SCOPE
1.1 This is a classification of the various types of copper currently available in refinery shapes and wrought products in commercial quantities. It is not a specification for the various types of copper.
1.2 In this classification, use is made of the standard copper designations in use by the copper industry.
1.3 Although this classification includes certain UNS designations as described in Practice E527, these designations are for cross-reference only and are not requirements. Therefore, in case of conflict, this ASTM classification shall govern.
1.4 This classification does not attempt to differentiate between all compositions that could be termed either coppers or copper-base alloys, but in conformance with general usage in the trade, includes those coppers in which the copper plus specific permitted elements is specified as 99.85 % or more, silver being counted as copper except in the case of UNS C10100 and C11040 where silver is not counted as copper.
Note 1: Coppers may contain small amounts of certain elements intentionally permitted to impart specific properties, without excessively lowering electrical conductivity. The total copper plus specific permitted elements is specified as 99.85 % or more. These intentionally permitted elements normally include, but are not limited to, arsenic, cadmium, chromium, lead, magnesium, silver, sulfur, tellurium, tin, zinc, and zirconium, plus deoxidizers, up to specific levels adopted by the International Standards Organization.
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.
General Information
- Status
- Published
- Publication Date
- 30-Sep-2022
- Technical Committee
- B05 - Copper and Copper Alloys
- Drafting Committee
- B05.07 - Refined Copper
Relations
- Effective Date
- 01-Aug-2019
- Effective Date
- 01-Jan-2019
- Effective Date
- 01-Jun-2011
- Effective Date
- 01-Jan-2011
- Effective Date
- 15-Nov-2009
- Effective Date
- 01-Nov-2009
- Effective Date
- 15-Nov-2006
- Effective Date
- 15-May-2006
- Effective Date
- 01-Nov-2005
- Effective Date
- 10-Apr-2003
- Effective Date
- 10-May-2001
- Effective Date
- 10-May-2001
- Effective Date
- 10-May-2001
- Effective Date
- 10-Mar-1997
Overview
ASTM B224-16(2022), Standard Classification of Coppers, is an internationally recognized classification developed by ASTM International. This standard provides a comprehensive listing and organization of the various types of copper available in commercial quantities, both from refineries and fabricators. It clarifies terminology, defines common copper types, and supports users-especially those less familiar with the industry-by helping them identify the most suitable copper for specific applications. The classification relies on standard copper designations widely accepted in the copper industry, ensuring consistency and clarity across sectors.
Key Topics
- Copper Types: The standard outlines numerous commercially available copper types, including electrolytic tough pitch coppers, fire-refined coppers, oxygen-free coppers, deoxidized coppers, and special coppers containing small amounts of elements such as sulfur, silver, tellurium, and zirconium.
- Forms and Availability: Copper can be obtained in forms such as cathodes, ingots, billets, cakes, bars, rods, wire, pipe, tube, and various fabricated products.
- Terminology: Definitions for key industry terms (e.g., sulfur-bearing copper, tellurium-bearing copper, zirconium-bearing copper, wire) are provided to standardize usage and enhance communication.
- Copper Content: It classifies coppers in which the copper plus specific permitted elements equals at least 99.85%, with some exceptions for how silver is counted.
- Unified Numbering System (UNS) Cross-References: While UNS numbers are referenced for many copper types (as described in ASTM E527), ASTM B224 requirements take precedence in case of conflict.
- Permitted Elements: The document notes that small, intentionally added elements (such as arsenic, cadmium, chromium, lead, magnesium, silver, sulfur, tellurium, tin, zinc, zirconium, and deoxidizers) are included to impart defined properties without excessively reducing electrical conductivity.
Applications
The ASTM B224-16(2022) Standard Classification of Coppers is highly valuable in several ways:
- Material Selection: Helps engineers, designers, and manufacturers select the appropriate copper type for electrical, construction, plumbing, and industrial applications based on standardized copper designations.
- Procurement: Assists purchasers and specifiers in confirming the copper form and type offered by refineries or fabricators match their requirements.
- Cross-Industry Consistency: Ensures that different sectors use the same terminology and classification, reducing miscommunication and errors.
- Quality and Compliance: Supports regulatory and quality assurance processes by providing a globally recognized reference for copper classification, especially in sectors adhering to international trade requirements.
Related Standards
Several standards are referenced or are closely related to ASTM B224-16(2022):
- ASTM E527: Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS), providing cross-referencing for copper designations.
- ASTM B846: Terminology for Copper and Copper Alloys, offering definitions essential for understanding copper product specifications.
- Other ASTM Copper Product Specifications: While ASTM B224 is a classification, other ASTM standards provide detailed specifications for the manufacturing and testing of specific copper products.
Conclusion
ASTM B224-16(2022) is a key standard for classifying copper types, supporting material selection, procurement, and international trade. By referencing both standard designations and pertinent terminology, it ensures clarity and consistency throughout the copper industry. This makes it an essential document for anyone involved in specifying, producing, or purchasing copper from commercial sources.
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Frequently Asked Questions
ASTM B224-16(2022) is a standard published by ASTM International. Its full title is "Standard Classification of Coppers". This standard covers: SIGNIFICANCE AND USE 4.1 This classification lists the types of copper available from refineries or fabricators, or both, defines the common terms used, and gives the characteristics of many of the coppers available. It is useful to the neophyte looking for the appropriate copper for a particular application. SCOPE 1.1 This is a classification of the various types of copper currently available in refinery shapes and wrought products in commercial quantities. It is not a specification for the various types of copper. 1.2 In this classification, use is made of the standard copper designations in use by the copper industry. 1.3 Although this classification includes certain UNS designations as described in Practice E527, these designations are for cross-reference only and are not requirements. Therefore, in case of conflict, this ASTM classification shall govern. 1.4 This classification does not attempt to differentiate between all compositions that could be termed either coppers or copper-base alloys, but in conformance with general usage in the trade, includes those coppers in which the copper plus specific permitted elements is specified as 99.85 % or more, silver being counted as copper except in the case of UNS C10100 and C11040 where silver is not counted as copper. Note 1: Coppers may contain small amounts of certain elements intentionally permitted to impart specific properties, without excessively lowering electrical conductivity. The total copper plus specific permitted elements is specified as 99.85 % or more. These intentionally permitted elements normally include, but are not limited to, arsenic, cadmium, chromium, lead, magnesium, silver, sulfur, tellurium, tin, zinc, and zirconium, plus deoxidizers, up to specific levels adopted by the International Standards Organization. 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.
SIGNIFICANCE AND USE 4.1 This classification lists the types of copper available from refineries or fabricators, or both, defines the common terms used, and gives the characteristics of many of the coppers available. It is useful to the neophyte looking for the appropriate copper for a particular application. SCOPE 1.1 This is a classification of the various types of copper currently available in refinery shapes and wrought products in commercial quantities. It is not a specification for the various types of copper. 1.2 In this classification, use is made of the standard copper designations in use by the copper industry. 1.3 Although this classification includes certain UNS designations as described in Practice E527, these designations are for cross-reference only and are not requirements. Therefore, in case of conflict, this ASTM classification shall govern. 1.4 This classification does not attempt to differentiate between all compositions that could be termed either coppers or copper-base alloys, but in conformance with general usage in the trade, includes those coppers in which the copper plus specific permitted elements is specified as 99.85 % or more, silver being counted as copper except in the case of UNS C10100 and C11040 where silver is not counted as copper. Note 1: Coppers may contain small amounts of certain elements intentionally permitted to impart specific properties, without excessively lowering electrical conductivity. The total copper plus specific permitted elements is specified as 99.85 % or more. These intentionally permitted elements normally include, but are not limited to, arsenic, cadmium, chromium, lead, magnesium, silver, sulfur, tellurium, tin, zinc, and zirconium, plus deoxidizers, up to specific levels adopted by the International Standards Organization. 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.
ASTM B224-16(2022) is classified under the following ICS (International Classification for Standards) categories: 77.120.30 - Copper and copper alloys. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B224-16(2022) has the following relationships with other standards: It is inter standard links to ASTM B846-19a, ASTM B846-19, ASTM B846-11a, ASTM B846-11, ASTM B846-09a, ASTM B846-09, ASTM B846-06a, ASTM B846-06, ASTM B846-05, ASTM E527-83(2003), ASTM B846-01, ASTM B846-99e1, ASTM B846-01e1, ASTM E527-83(1997)e1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B224-16(2022) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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.
Designation: B224 −16 (Reapproved 2022)
Standard Classification of
Coppers
This standard is issued under the fixed designation B224; 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.
1. Scope* 2. Referenced Documents
1.1 This is a classification of the various types of copper 2.1 ASTM Standards:
currently available in refinery shapes and wrought products in E527 Practice for Numbering Metals and Alloys in the
commercial quantities. It is not a specification for the various Unified Numbering System (UNS)
types of copper. B846 Terminology for Copper and Copper Alloys
1.2 In this classification, use is made of the standard copper
3. Terminology
designations in use by the copper industry.
3.1 This classification covers definitions specific to this
1.3 Although this classification includes certain UNS des-
document and in conjunction with Terminology B846.
ignations as described in Practice E527, these designations are
3.2 Definitions of Terms Specific to This Standard:
forcross-referenceonlyandarenotrequirements.Therefore,in
3.2.1 sulfur-bearing copper—copper alloy containing a
case of conflict, this ASTM classification shall govern.
specified amount of sulfur (C14700).
1.4 This classification does not attempt to differentiate
3.2.2 tellurium-bearing copper—copper alloy containing a
between all compositions that could be termed either coppers
specified amount of tellurium (C14500).
or copper-base alloys, but in conformance with general usage
in the trade, includes those coppers in which the copper plus 3.2.3 wire—a solid section, including rectangular flat wire
specific permitted elements is specified as 99.85 % or more, but excluding other flat products, furnished in coils or on
spools, reels, or bucks.
silver being counted as copper except in the case of UNS
C10100 and C11040 where silver is not counted as copper.
3.2.4 zirconium-bearing copper—copper alloy containing a
specified amount of zirconium (C15000).
NOTE 1—Coppers may contain small amounts of certain elements
intentionally permitted to impart specific properties, without excessively
lowering electrical conductivity. The total copper plus specific permitted 4. Significance and Use
elements is specified as 99.85 % or more. These intentionally permitted
4.1 This classification lists the types of copper available
elements normally include, but are not limited to, arsenic, cadmium,
from refineries or fabricators, or both, defines the common
chromium, lead, magnesium, silver, sulfur, tellurium, tin, zinc, and
zirconium, plus deoxidizers, up to specific levels adopted by the Interna-
terms used, and gives the characteristics of many of the
tional Standards Organization.
coppers available. It is useful to the neophyte looking for the
1.5 This international standard was developed in accor-
appropriate copper for a particular application.
dance with internationally recognized principles on standard-
5. Basis of Classification
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5.1 Table 1 lists the standard designations, and the refinery
mendations issued by the World Trade Organization Technical
shapes and fabricators’ products currently produced. The listed
Barriers to Trade (TBT) Committee.
coppers are not necessarily available in the complete range of
sizesintheformshown,norfromanyonesupplierinallforms.
This classification is under the jurisdiction of ASTM Committee B05 on
Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.07
on Refined Copper. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2022. Published October 2022. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1948. Last previous edition approved in 2016 as B224 – 16. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/B0224-16R22. the ASTM website.
*A Summary of Changes section appears at the end of this standard
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