ASTM B432-04

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 covers 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 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 30-Apr-2004
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Relations

• Replaces: ASTM B432-91(1998) - Standard Specification for Copper and Copper Alloy Clad Steel Plate
• Effective Date: 01-May-2004
• Replaced By: ASTM B432-09 - Standard Specification for Copper and Copper Alloy Clad Steel Plate
• Effective Date: 15-Apr-2009
• Referred By: ASTM B253-11(2022) - Standard Guide for Preparation of Aluminum Alloys for Electroplating
• Effective Date: 01-May-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 432 – 04
Standard Specification for
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Copper and Copper Alloy Clad Steel Plate
This standard is issued under the fixed designation B 432; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* 2.2 ASME Code:
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Boiler and Pressure Vessel Code, Section VIII
1.1 This specification covers plate of a carbon steel or
Boiler and Pressure Vessel Code, Section IX, Welding
low-alloy steel base to which is integrally and continuously
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Qualifications
bonded on one or both sides a layer of copper or copper-base
alloy.Thematerialisgenerallyintendedforpressurevesseluse
3. Terminology
but may be used in other structural applications where corro-
3.1 Definitions of Terms Specific to This Standard:
sion resistance or conductivity of the alloy is of prime
3.1.1 base metal (backing steel), n—component to which
importance.
the cladding metal is applied, usually the greater percentage of
1.2 The values stated in inch-pound units are to be regarded
the composite plate and usually consisting of carbon or
as the standard. The SI units given in parentheses are for
low-alloy steel.
information only.
3.1.2 blind flange, n—same as a cover.
2. Referenced Documents 3.1.3 cladding metal, n—the copper or copper-base alloy
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component of the composite plate.
2.1 ASTM Standards:
3.1.4 cover, n—a component with similar features to a
A 6/A 6M Specification for General Requirements for
tubesheet which is used as a closure and which typically
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
requires surface machining over part of the face while main-
Piling
taining minimum specified minimum thickness.
A 20/A 20M Specification for General Requirements for
3.1.5 double-clad, n—material is considered as double-clad
Steel Plates for Pressure Vessels
whenbothsidesofthesteelbasemetalarecoveredwithcopper
A 370 Test Methods and Definitions for MechanicalTesting
cladding.
of Steel Products
3.1.6 interface, n—of the clad product, is that region of the
A 578/A 578M Specification for Straight-Beam Ultrasonic
thickness in which the product transitions from essentially
Examination of Plain and Clad Steel Plates for Special
100 % base metal to 100 % cladding metal, also referred to as
Applications
the bond or bondzone.
B 96 Specification for Copper-Silicon Alloy Plate, Sheet,
3.1.7 integrally and continuously bonded, adv—a condition
Strip, and Rolled Bar for General Purposes and Pressure
in which the cladding metal and base metal are brought
Vessels
together to form a metallurgical bond at essentially the entire
B 152/B 152M Specification for Copper Sheet, Strip, Plate,
interfaceofthetwometalsbymeansotherthanthoseprocesses
and Rolled Bar
that do not produce a homogeneous composite plate.
B 171/B 171M Specification for Copper-Alloy Plate and
3.1.8 plate, n—the term plate as used in this specification
Sheet for Pressure Vessels, Condensers, and Heat Ex-
applies to material 0.188 in. (4.77 mm) and over in thickness,
changers
and over 10 in. (254 mm) in width.
E 29 Practice for Using Significant Digits in Test Data to
3.1.9 single-clad, n—material is considered as single-clad
Determine Conformance with Specifications
when only one side of the steel base metal is covered with
copper cladding.
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ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
3.1.10 tubesheet, n—a clad plate which is used in a heat
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
exchanger to separate the tubeside and shell side components.
Sheet, and Strip.
Typically, but not necessarily, tubesheets are round, relatively
Current edition approved May 1, 2004. Published May 2004. Originally
approved in 1966. Last previous edition approved in 1998 as B 432 – 91 (1998).
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on Available from American Society of Mechanical Engineers (ASME), ASME
the ASTM website. International Headquarters, Three Park Ave., New York, NY 10016-5990.
*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.
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B432–04
thick, and require that the cladding and/or base be machined chemical composition prescribed in the respective cladding
flat over part or all of the face while maintaining specified metal Specifications B 96, B 152/B 152M, or B 171/B 171M,
minimum thicknes
...