Standard Specification for Reactive and Refractory Metal Clad Plate

ABSTRACT
This specification covers plate consisting of a base metal to which is bonded, integrally and continuously, on one or both sides a layer of one of the following: titanium, zirconium, tantalum, niobium, and their alloys. The material generally is intended for pressure vessel use. The cladding metal shall be bonded to the base metal by any cladding operation that will produce a clad product which will conform to the requirements of this specification. When the cladding operation does not affect the chemical composition of the cladding or base metal, or both, the chemical analysis, in accordance with cladding, or base metal specifications or both, may be performed prior to the cladding operation. All heat treatments shall be performed as needed in the cladding operation unless otherwise specified or agreed between the purchaser and the manufacturer. Mechanical testing of the base metal, in accordance with the base metal specification, may be performed prior to the cladding operation. The tensile properties shall be determined by a tension test on the base metal only in accordance with the testing requirements of the base metal specification. The specimen orientation, location with respect to thickness, and number of tests and retests shall be in accordance with the requirements of the base metal specification when tension, bend, and impact tests shall be performed. The product surfaces shall be free of excess imperfections and extraneous materials as determined by visual examination.
SCOPE
1.1 This specification covers plate consisting of a base metal to which is bonded, integrally and continuously, on one or both sides a layer of one of the following: titanium, zirconium, tantalum, niobium, and their alloys. The material generally is intended for pressure vessel use.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses and in metric tables are provided for information only.

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Historical
Publication Date
30-Apr-2005
Current Stage
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ASTM B898-05e1 - Standard Specification for Reactive and Refractory Metal Clad Plate
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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Designation: B898 – 05
Standard Specification for
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Reactive and Refractory Metal Clad Plate
This standard is issued under the fixed designation B898; 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.
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´ NOTE—11.1.2 was corrected editorially in July 2006.
1. Scope Boiler and Pressure Vessel Code, Section VIII, Divisions 1,
2, 3
1.1 Thisspecificationcoversplateconsistingofabasemetal
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2.3 Military Standard:
to which is bonded, integrally and continuously, on one or both
MIL-J-24445A Joint, Bimetallic Bonded, Aluminum to
sides a layer of one of the following: titanium, zirconium,
Steel
tantalum, niobium, and their alloys. The material generally is
intended for pressure vessel use.
3. Terminology
1.2 The values stated in inch-pound units are to be regarded
3.1 Definitions of Terms Specific to This Standard:
as the standard. The values in parentheses and in metric tables
3.1.1 This material is considered as single-clad or double-
are provided for information only.
clad dependent upon whether one or both sides of the base
2. Referenced Documents metal are covered by a cladding metal.
2
3.1.2 base metal, n—the component that comprises the
2.1 ASTM Standards:
greatest percentage of total thickness.
A265 Specification for Nickel and Nickel-Base Alloy-Clad
3.1.3 cladding metal, or cladding metals, n—the compo-
Steel Plate
nent, or components, which individually comprise less than the
A578/A578M Specification for Straight-Beam Ultrasonic
greatest percentage of total thickness.
Examination of Rolled Steel Plates for Special Applica-
3.1.4 cladding operation, n—the production event, which
tions
results in the formation of the bond between the cladding and
B265 Specification for Titanium and Titanium Alloy Strip,
base metal components, plus all related prebonding and post
Sheet, and Plate
bonding operations, prior to supply to the purchaser.
B393 Specification for Niobium and Niobium Alloy Strip,
3.1.5 interface, n—of the clad product, is that region of
Sheet, and Plate
thickness in which the product transitions from essentially
B551/B551M Specification for Zirconium and Zirconium
100 % base metal to 100 % cladding metal. Also known as
Alloy Strip, Sheet, and Plate
bond or bond zone.
B708 Specification for Tantalum and TantalumAlloy Plate,
3.1.6 interlayer, n—a metal layer of a type or grade differ-
Sheet, and Strip
3 ent from the cladding metal and base metal, which is applied
2.2 ASME Code:
between the cladding and base metal.
Boiler and Pressure Vessel Code, Section IX, Welding
3.1.7 integrally and continuously bonded, adv—a condition
Qualifications
in which the cladding metal and base metal are brought
together to form a metallurgical bond at essentially the entire
interfaceofthetwometalsbymeansotherthanthoseprocesses
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This specification is under the jurisdiction of ASTM Committee B10 on
that do not produce a homogeneous composite plate.
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.01 on Titanium.
4. Ordering Information
Current edition approved May 1, 2005. Published June 2005. Originally
approved in 1999. Last previous edition approved in 1999 as B898 – 99. DOI:
4.1 Orders for material under this specification shall include
10.1520/B0898-05E01.
the following information:
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.1 Quantity.
contact ASTM 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.
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Available from American Society of Mechanical Engineers (ASME), ASME Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
International Headquarters, Three Park Ave., New York, NY 10016-5990. Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B898 – 05
4.1.2 Product dimensions, including thickness of both clad- 6.3 Base Metal—The base metal shall be steel or any other
ding metal and base metal. It should state whether each product conforming to specifications for metal plate. The base
thicknessvalueisminimumornominal.Ifnotstated,thickness metal shall conform to the requirements as to chemical
values shall be nominal. composition prescribed in the base metal specification.
4.1.3 Cladding metal type and specification (the cladding
7. Mechanical Properties
metal specification) (see Section 6).
7.1 The base metal shall conform to the mechanical pr
...

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