ASTM B372-22

Standard Specification for Seamless Copper and Copper-Alloy Rectangular Waveguide Tube

ABSTRACT
This specification covers seamless copper and copper-alloy rectangular waveguide tube intended for use as transmission lines in electronic equipment. Four types of material are specified having the following nominal compositions: C10200, C10300, C12000, and C22000. The copper and copper-alloy tubes shall be finished by such cold-working and annealing operations as are necessary to meet the required properties. The material shall conform to the chemical requirements specified. The material shall conform to the Rockwell hardness requirements prescribed. The test specimens of copper UNS nos. C10200, C10300, and C12000 shall be free of cuprous oxide. It is to be expected that samples of Copper UNS Nos. C10200, C10300, and C12000 shall be capable of passing the embrittlement test. It is to be expected that samples of copper UNS nos. C10200, C10300, and C12000 will conform to the prescribed electrical resistivity requirements. Samples for chemical analysis shall be taken accordingly.
SIGNIFICANCE AND USE
15.1 For purposes of determining compliance with the specified limits for requirements of chemical composition, hardness, and electrical resistivity, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.
SCOPE
1.1 This specification establishes the requirements for seamless copper and copper-alloy rectangular tube intended for use as transmission lines in electronic equipment. Five types of material are specified having the following nominal compositions:2    
Copper or
Copper Alloy
UNS2 No.  
Previously
Used Designation  
Nominal Composition, %  
Copper  
Zinc  
Phosphorus  
C10100  
Copper, Type OFEA  
99.99B  
...  
...  
C10200  
Copper, Type OFA  
99.95B  
...  
...  
C10300  
Copper, Type OFXLPA  
99.95B  
...  
0.003  
C12000  
Copper, Type DLPA  
99.90B  
...  
0.008  
C22000  
Commercial
bronze, 90 %  
90  
10  
...  
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.  
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.

General Information

• Status: Published
• Publication Date: 30-Apr-2022
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.04 - Pipe and Tube

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:B372 −22
Standard Specification for
Seamless Copper and Copper-Alloy Rectangular Waveguide
1
Tube
This standard is issued under the fixed designation B372; 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* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 Thisspecificationestablishestherequirementsforseam-
Barriers to Trade (TBT) Committee.
less copper and copper-alloy rectangular tube intended for use
as transmission lines in electronic equipment. Five types of
2. Referenced Documents
material are specified having the following nominal composi-
2
tions: 2.1 The following documents of the issue in effect on date
of material purchase form a part of this specification to the
Copper or
Copper Alloy Previously Nominal Composition, %
extent referenced herein:
2
UNS No. Used Designation Copper Zinc Phosphorus
3
2.2 ASTM Standards:
A B
C10100 Copper, Type OFE 99.99 . .
B170 Specification for Oxygen-Free Electrolytic Copper—
A B
C10200 Copper, Type OF 99.95 . .
Refinery Shapes
A B
C10300 Copper, Type OFXLP 99.95 . 0.003
A B
B193 Test Method for Resistivity of Electrical Conductor
C12000 Copper, Type DLP 99.90 . 0.008
C22000 Commercial 90 10 .
Materials
bronze, 90 %
B224 Classification of Coppers
B428 Test Method for Angle of Twist in Rectangular and
A
Types OF, OFE, OFXLP, and DLP are described in Classification B224.
B
Minimum copper percentage. Square Copper and Copper Alloy Tube
B577 Test Methods for Detection of Cuprous Oxide (Hydro-
1.2 Units—The values stated in inch-pound units are to be
gen Embrittlement Susceptibility) in Copper
regarded as standard. The values given in parentheses are
B846 Terminology for Copper and Copper Alloys
mathematical conversions to SI units that are provided for
E18 Test Methods for Rockwell Hardness of Metallic Ma-
information only and are not considered standard.
terials
1.3 The following safety hazard caveat pertains only to the
E29 Practice for Using Significant Digits in Test Data to
test method(s) described in this specification.
Determine Conformance with Specifications
1.3.1 This standard does not purport to address all of the
E53 Test Method for Determination of Copper in Unalloyed
safety concerns, if any, associated with its use. It is the 4
Copper by Gravimetry (Withdrawn 2022)
responsibility of the user of this standard to establish appro-
E62 Test Methods for Chemical Analysis of Copper and
priate safety, health, and environmental practices and deter- 4
CopperAlloys (Photometric Methods) (Withdrawn 2010)
mine the applicability of regulatory limitations prior to use.
E255 Practice for Sampling Copper and Copper Alloys for
1.4 This international standard was developed in accor-
the Determination of Chemical Composition
dance with internationally recognized principles on standard-
E478 Test Methods for ChemicalAnalysis of CopperAlloys
ization established in the Decision on Principles for the 5
2.3 Other Document:
ANSI B46.1 Surface Roughness, Waviness, and Lay
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
3
and Tube. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2022. Published May 2022. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1961. Last previous edition approved in 2017 as B372 – 17. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/B0372-22. the ASTM website.
2 4
The UNS system for copper and copper alloys is a simple expansion of the The last approved version of this historical standard is referenced on
former standard designation system accomplished by the addition of a prefix“ C” www.astm.org.
5
and a suffix “00.” The suffix can be used to accommodate composition variations of Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the base alloy. 4th Floor, New York, NY 10036.
*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 ----------------------
B372−22
TABLE 1 Chemical Requireme
...

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: B372 − 17 B372 − 22
Standard Specification for
Seamless Copper and Copper-Alloy Rectangular Waveguide
1
Tube
This standard is issued under the fixed designation B372; 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 seamless copper and copper-alloy rectangular tube intended for use as
2
transmission lines in electronic equipment. Five types of material are specified having the following nominal compositions:
Copper or
Copper Alloy Previously Nominal Composition, %
2
UNS No. Used Designation Copper Zinc Phosphorus
A B
C10100 Copper, Type OFE 99.99 . .
A B
C10200 Copper, Type OF 99.95 . .
A B
C10300 Copper, Type OFXLP 99.95 . 0.003
A B
C12000 Copper, Type DLP 99.90 . 0.008
C22000 Commercial 90 10 .
bronze, 90 %
A
Types OF, OFE, OFXLP, and DLP are described in Classification B224.
B
Minimum copper percentage.
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units whichthat are provided for information only and are not considered standard.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.
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.
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved Oct. 1, 2017May 1, 2022. Published October 2017May 2022. Originally approved in 1961. Last previous edition approved in 20122017 as
B372 – 12a.B372 – 17. DOI: 10.1520/B0372-17.10.1520/B0372-22.
2
The UNS system for copper and copper alloys is a simple expansion of the former standard designation system accomplished by the addition of a prefix“ C” and a suffix
“00.” The suffix can be used to accommodate composition variations of the base alloy.
*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 ----------------------
B372 − 22
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:
B170 Specification for Oxygen-Free Electrolytic Copper—Refinery Shapes
B193 Test Method for Resistivity of Electrical Conductor Materials
B224 Classification of Coppers
B428 Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube
B577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B846 Terminology for Copper and Copper Alloys
E18 Test Methods for Rockwell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
4
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry (Withdrawn 2022)
4
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E478 Test Methods for Chemical Analysis of Copper Alloys
5
2.3 Other Document:
ANSI B46.1 Surface Roughness, Waviness, and Lay
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
4. Ordering Information
4.1 Include the following specified choices when placing orders for products under this specification, as applicable:
4.1.1 ASTM designation
...