ASTM B432-09a
(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.
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Designation:B432 −09a
StandardSpecification 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* E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.1 This specification establishes the requirements for plate
of a carbon steel or low-alloy steel base to which is integrally 2.2 ASME Code:
3
andcontinuouslybondedononeorbothsidesalayerofcopper Boiler and Pressure Vessel Code, Section VIII
or copper-base alloy. The material is generally intended for BoilerandPressureVesselCode, SectionIX,WeldingQuali-
3
pressure vessel use but may be used in other structural fications
applications where corrosion resistance or conductivity of the
alloy is of prime importance.
3. Terminology
1.2 Units—The values stated in inch-pound units are to be
3.1 For definitions of terms related to copper and copper
regarded as standard. The values given in parentheses are
alloys, refer to Terminology B846.
mathematical conversions to SI units that are provided for
3.2 Definitions of Terms Specific to This Standard:
information only and are not considered standard.
3.2.1 base metal (backing steel), n—component to which
the cladding metal is applied, usually the greater percentage of
2. Referenced Documents
the composite plate and usually consisting of carbon or
2
2.1 ASTM Standards:
low-alloy steel.
A6/A6M Specification for General Requirements for Rolled
3.2.2 blind flange, n—same as a cover.
Structural Steel Bars, Plates, Shapes, and Sheet Piling
3.2.3 bonding, n—adhesion of one surface to another with-
A20/A20M SpecificationforGeneralRequirementsforSteel
out the use of an adhesive as a bonding agent.
Plates for Pressure Vessels
A370 Test Methods and Definitions for Mechanical Testing
3.2.4 cladding metal, n—the copper or copper-base alloy
of Steel Products
component of the composite plate.
A578/A578M Specification for Straight-Beam Ultrasonic
3.2.5 cover, n—a component with similar features to a
Examination of Rolled Steel Plates for Special Applica-
tubesheet which is used as a closure and which typically
tions
requires surface machining over part of the face while main-
B96/B96M Specification for Copper-Silicon Alloy Plate,
taining minimum specified minimum thickness.
Sheet, Strip, and Rolled Bar for General Purposes and
3.2.6 double-clad, n—material is considered as double-clad
Pressure Vessels
whenbothsidesofthesteelbasemetalarecoveredwithcopper
B152/B152M Specification for Copper Sheet, Strip, Plate,
cladding.
and Rolled Bar
B171/B171M Specification for Copper-Alloy Plate and 3.2.7 interface, n—of the clad product, is that region of the
Sheet for Pressure Vessels, Condensers, and Heat Ex- thickness in which the product transitions from essentially
changers 100 % base metal to 100 % cladding metal, also referred to as
B846 Terminology for Copper and Copper Alloys the bond or bondzone.
3.2.8 integrally and continuously bonded, adv—a condition
in which the cladding metal and base metal are brought
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
together to form a metallurgical bond at essentially the entire
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
interfaceofthetwometalsbymeansotherthanthoseprocesses
Sheet, and Strip.
that do not produce a homogeneous composite plate.
Current edition approved Oct. 1, 2009. Published November 2009. Originally
approved in 1966. Last previous edition approved in 2009 as B432 – 09. DOI:
10.1520/B0432-09.
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, Three 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 ----------------------
B432−09a
3.2.9 plate, n—the term plate as used in this specification Cladding methods are, but not limited to, explosion bonding,
applies to material 0.188 in. (4.78 mm) and over in thickness, roll bonding, and weld overlay.
and over 10 in. (254 mm) in width. 5.2.2 The cladding metal may be fabricated from multiple
sheets or plates by edge butt welding prior to the clad
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:B432–09 Designation: B432 – 09a
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.
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
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
B96/B96M SpecificationforCopper-SiliconAlloyPlate,Sheet,Strip,andRolledBarforGeneralPurposesandPressureVessels
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
2.2 ASME Code:
3
Boiler and Pressure Vessel Code, Section VIII
3
Boiler and Pressure Vessel Code, Section IX, Welding Qualifications
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.
3.2.6 double-clad, n—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 integrally and continuously bonded, adv—a condition in which the cladding metal and base metal are brought together
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 approvedApril 15,Oct. 1, 2009. Published MayNovember 2009. Originally approved in 1966. Last previous edition approved in 20042009 as B432 – 049.
DOI: 10.1520/B0432-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three 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 – 09a
to form a metallurgical bond at essentially the entire interface of the two metals by means other than those processes that do not
produce a homogeneous composite plate.
3.2
...
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