ASTM B432-19
(Specification)Standard Specification for Copper and Copper Alloy Clad Steel Plate
Standard Specification for Copper and Copper Alloy Clad Steel Plate
ABSTRACT
This specification covers plates made of carbon steel or low-alloy steel base, to which a layer of copper or copper-base alloy cladding is integrally and continuously bonded on one or both sides. The material is generally intended for pressure vessel applications, but may be used in other structural applications where corrosion resistance or conductivity of the alloy is of prime importance. The steel shall be primarily made by the open-hearth, electric-furnace (with optional degassing and refining done separately), or basic-oxygen processes. Secondary processes may also be performed, whereby the steel made from the primary processes is remelted using, but not limited to, electroslag remelting or vacuum arc remelting. Materials shall be tested and shall conform to dimensional (thickness, flatness, and outside diameter), mechanical (tensile, shear and bond strengths), and chemical composition requirements. The manufacturer may rework defects in the cladding by repair welding provided specific requirements are met.
SCOPE
1.1 This specification establishes the requirements for plate of a carbon steel or low-alloy steel base to which is integrally and continuously bonded on one or both sides a layer of copper or copper-base alloy. The material is generally intended for pressure vessel use but may be used in other structural applications where corrosion resistance or conductivity of the alloy is of prime importance.
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 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.
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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:B432 −19
Standard Specification for
1
Copper and Copper Alloy Clad Steel Plate
This standard is issued under the fixed designation B432; 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* B171/B171M Specification for Copper-Alloy Plate and
Sheet for Pressure Vessels, Condensers, and Heat Ex-
1.1 This specification establishes the requirements for plate
changers
of a carbon steel or low-alloy steel base to which is integrally
B846 Terminology for Copper and Copper Alloys
andcontinuouslybondedononeorbothsidesalayerofcopper
E29 Practice for Using Significant Digits in Test Data to
or copper-base alloy. The material is generally intended for
Determine Conformance with Specifications
pressure vessel use but may be used in other structural
3
2.2 ASME Code:
applications where corrosion resistance or conductivity of the
Boiler and Pressure Vessel Code, Section VIII
alloy is of prime importance.
Boiler and Pressure Vessel Code, Section IX
1.2 Units—The values stated in inch-pound units are to be
regarded as standard. The values given in parentheses are
3. Terminology
mathematical conversions to SI units that are provided for
3.1 For definitions of terms related to copper and copper
information only and are not considered standard.
alloys, refer to Terminology B846.
1.3 This international standard was developed in accor-
3.2 Definitions of Terms Specific to This Standard:
dance with internationally recognized principles on standard-
3.2.1 base metal (backing steel), n—component to which
ization established in the Decision on Principles for the
the cladding metal is applied, usually the greater percentage of
Development of International Standards, Guides and Recom-
the composite plate and usually consisting of carbon or
mendations issued by the World Trade Organization Technical
low-alloy steel.
Barriers to Trade (TBT) Committee.
3.2.2 blind flange, n—same as a cover.
2. Referenced Documents
3.2.3 bonding, n—adhesion of one surface to another with-
2
2.1 ASTM Standards:
out the use of an adhesive as a bonding agent.
A6/A6M Specification for General Requirements for Rolled
3.2.4 cladding metal, n—the copper or copper-base alloy
Structural Steel Bars, Plates, Shapes, and Sheet Piling
component of the composite plate.
A20/A20M SpecificationforGeneralRequirementsforSteel
3.2.5 cover, n—a component with similar features to a
Plates for Pressure Vessels
tubesheet which is used as a closure and which typically
A578/A578M Specification for Straight-Beam Ultrasonic
requires surface machining over part of the face while main-
Examination of Rolled Steel Plates for Special Applica-
taining minimum specified minimum thickness.
tions
B96/B96M Specification for Copper-Silicon Alloy Plate, 3.2.6 double-clad, adj—material is considered as double-
clad when both sides of the steel base metal are covered with
Sheet, Strip, and Rolled Bar for General Purposes and
Pressure Vessels copper cladding.
B152/B152M Specification for Copper Sheet, Strip, Plate,
3.2.7 interface, n—of the clad product, is that region of the
and Rolled Bar
thickness in which the product transitions from essentially
100 % base metal to 100 % cladding metal, also referred to as
the bond or bondzone.
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
3.2.8 integrally and continuously bonded—a condition in
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
which the cladding metal and base metal are brought together
Sheet, and Strip.
Current edition approved April 1, 2019. Published April 2019. Originally
to form a metallurgical bond at essentially the entire interface
approved in 1966. Last previous edition approved in 2014 as B432–14. DOI:
10.1520/B0432–19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Society of Mechanical Engineers (ASME), ASME
Standards volume information, refer to the standard’s Document Summary page on International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
the ASTM website. www.asme.org.
*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 ----------------------
B432−19
of the two metals by means other than those processes that do 5
...
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: B432 − 14 B432 − 19
Standard Specification for
1
Copper and Copper Alloy Clad Steel Plate
This standard is issued under the fixed designation B432; 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*
1.1 This specification establishes the requirements for plate of a carbon steel or low-alloy steel base to which is integrally and
continuously bonded on one or both sides a layer of copper or copper-base alloy. The material is generally intended for pressure
vessel use but may be used in other structural applications where corrosion resistance or conductivity of the alloy is of prime
importance.
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 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:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
B96/B96M Specification for Copper-Silicon Alloy Plate, Sheet, Strip, and Rolled Bar for General Purposes and Pressure Vessels
B152/B152M Specification for Copper Sheet, Strip, Plate, and Rolled Bar
B171/B171M Specification for Copper-Alloy Plate and Sheet for Pressure Vessels, Condensers, and Heat Exchangers
B846 Terminology for Copper and Copper Alloys
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
2.2 ASME Code:
Boiler and Pressure Vessel Code, Section VIII
Boiler and Pressure Vessel Code, Section IX
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 base metal (backing steel), n—component to which the cladding metal is applied, usually the greater percentage of the
composite plate and usually consisting of carbon or low-alloy steel.
3.2.2 blind flange, n—same as a cover.
3.2.3 bonding, n—adhesion of one surface to another without the use of an adhesive as a bonding agent.
3.2.4 cladding metal, n—the copper or copper-base alloy component of the composite plate.
3.2.5 cover, n—a component with similar features to a tubesheet which is used as a closure and which typically requires surface
machining over part of the face while maintaining minimum specified minimum thickness.
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 Sept. 1, 2014April 1, 2019. Published November 2014April 2019. Originally approved in 1966. Last previous edition approved in 20092014 as
B432 – 09a.B432–14. DOI: 10.1520/B0432-14.10.1520/B0432–19.
2
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.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*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 ----------------------
B432 − 19
3.2.6 double-clad, n—adj—material is considered as double-clad when both sides of the steel base metal are covered with
copper cladding.
3.2.7 interface, n—of the clad product, is that region of the thickness in which the product transitions from essentially 100 %
base metal to 100 % cladding metal, also referred to as the bond or bondzone.
3.2.8 integrall
...
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