ASTM B370-12(2019)

Standard Specification for Copper Sheet and Strip for Building Construction

ABSTRACT
This specification establishes the requirements for rolled copper sheets and strips in flat lengths or coils of ounce-weight thicknesses for roofing, flashing, gutters, downspouts, and general sheet metal work in building construction. Products produced to this specification are not intended for electrical applications. Materials are available in the following tempers: O60 (soft), H00 (cold-rolled), H01 (cold-rolled, high yield), H02 (half hard), H03 (three-quarter hard), and H04 (hard). Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (mass, thickness, length, width, weight, and straightness), mechanical (tensile and yield strength, and Rockwell hardness), chemical composition, and grain recrystallization requirements.
SCOPE
1.1 This specification establishes the requirements for rolled copper sheet and strip in flat lengths or coils in ounce-weight thicknesses for roofing, flashing, gutters, downspouts, and general sheet metal work in building construction.  
1.1.1 Products produced to this specification are not intended for electrical applications.  
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.
Note 1: Specification B101 is an associated specification for lead-coated copper sheets and strip for building construction.  
1.3 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: Historical
• Publication Date: 30-Sep-2019
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B370 −12 (Reapproved 2019)
Standard Specification for
1
Copper Sheet and Strip for Building Construction
This standard is issued under the fixed designation B370; 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* B601 ClassificationforTemperDesignationsforCopperand
Copper Alloys—Wrought and Cast
1.1 Thisspecificationestablishestherequirementsforrolled
B846 Terminology for Copper and Copper Alloys
copper sheet and strip in flat lengths or coils in ounce-weight
E3 Guide for Preparation of Metallographic Specimens
thicknesses for roofing, flashing, gutters, downspouts, and
E8/E8M Test Methods for Tension Testing of Metallic Ma-
general sheet metal work in building construction.
terials
1.1.1 Products produced to this specification are not in-
E112 Test Methods for Determining Average Grain Size
tended for electrical applications.
E255 Practice for Sampling Copper and Copper Alloys for
1.2 Units—The values stated in inch-pound units are to be
the Determination of Chemical Composition
regarded as standard. The values given in parentheses are
E478 Test Methods for ChemicalAnalysis of CopperAlloys
mathematical conversions to SI units that are provided for
information only and are not considered standard.
3. General Requirements
NOTE 1—Specification B101 is an associated specification for lead-
3.1 The following sections of Specification B248 constitute
coated copper sheets and strip for building construction.
a part of this specification:
1.3 This standard does not purport to address all of the
3.1.1 Terminology;
safety concerns, if any, associated with its use. It is the 3.1.2 Materials and Manufacture;
responsibility of the user of this standard to establish appro-
3.1.3 Workmanship, Finish, and Appearance;
priate safety, health, and environmental practices and deter- 3.1.4 Specimen Preparation;
mine the applicability of regulatory limitations prior to use.
3.1.5 Test Methods;
1.4 This international standard was developed in accor- 3.1.6 Significance of Numerical Limits;
dance with internationally recognized principles on standard-
3.1.7 Inspection;
ization established in the Decision on Principles for the
3.1.8 Certification;
Development of International Standards, Guides and Recom-
3.1.9 Mill Test Report;
mendations issued by the World Trade Organization Technical
3.1.10 Packaging and Package Marking; and
Barriers to Trade (TBT) Committee.
3.1.11 Supplementary Requirements.
3.2 In addition, when a section with a title identical to that
2. Referenced Documents
referenced in 3.1, above, appears in this specification, it
2
2.1 ASTM Standards:
contains additional requirements, which supplement those
B101 Specification for Lead-Coated Copper Sheet and Strip
appearing in Specification B248.
for Building Construction
B248 Specification for General Requirements for Wrought
4. Terminology
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
4.1 Definitions:
Bar
4.1.1 For definitions of terms related to copper and copper
alloys, refer to Terminology B846.
1 4.1.2 coil, n—a length of the product wound into a series of
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate, connected turns.
Sheet, and Strip.
4.1.2.1 Discussion—The unqualified term “coil” as applied
Current edition approved Oct. 1, 2019. Published October 2019. Originally
to “flat product” usually refers to a coil in which the product is
approved in 1961. Last previous edition approved in 2012 as B370–12. DOI:
spirally wound, with the successive layers on top of one
10.1520/B0370–12R19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
another (sometimes called a “roll”).
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1.3 lengths, mill, n—straight lengths, including ends, that
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. are be manufactured conveniently in the mills.
*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

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B370−12 (2019)
TABLE 1 Thickness Tolerances of Sheet and Strip TABLE 2 Thickness Tolerances of Sheet and Strip to be Coated
for Flashing
Tolerances, Plus
Theoretical
2 A
Ounce-Weight/ft and Minus
Thickness, in. Tolerances,
Theoretical
2
(mm) A
in. (mm)
Ounce-Weight/ft Plus and
...

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: B370 − 12 B370 − 12 (Reapproved 2019)
Standard Specification for
1
Copper Sheet and Strip for Building Construction
This standard is issued under the fixed designation B370; 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 rolled copper sheet and strip in flat lengths or coils in ounce-weight
thicknesses for roofing, flashing, gutters, downspouts, and general sheet metal work in building construction.
1.1.1 Products produced to this specification are not intended for electrical applications.
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.
NOTE 1—Specification B101 is an associated specification for lead-coated copper sheets and strip for building construction.
1.3 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 safety, health, and healthenvironmental 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
2.1 ASTM Standards:
B101 Specification for Lead-Coated Copper Sheet and Strip for Building Construction
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E112 Test Methods for Determining Average Grain Size
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E478 Test Methods for Chemical Analysis of Copper Alloys
3. General Requirements
3.1 The following sections of Specification B248 constitute a part of this specification:
3.1.1 Terminology,Terminology;
3.1.2 Materials and Manufacture,Manufacture;
3.1.3 Workmanship, Finish, and Appearance,Appearance;
3.1.4 Specimen Preparation,Preparation;
3.1.5 Test Methods,Methods;
3.1.6 Significance of Numerical Limits,Limits;
3.1.7 Inspection,Inspection;
3.1.8 Certification,Certification;
1
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, 2012Oct. 1, 2019. Published December 2012October 2019. Originally approved in 1961. Last previous edition approved in 20112012
ε1
as B370 – 11B370 .–12. DOI: 10.1520/B0370-12.10.1520/B0370–12R19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’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
1

---------------------- Page: 1 ----------------------
B370 − 12 (2019)
3.1.9 Mill Test Report,Report;
3.1.10 Packaging and Package Marking,Marking; and
3.1.11 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 Specification B248.
4. Terminology
4.1 Definitions:
4.1.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
4.1.2 coil, n—a length of the product wound into a series of connected turns.
4.1.2.1 Discussion—
The unqualified term “coil” as applied to “flat
...