ASTM B898-05
(Specification)Standard Specification for Reactive and Refractory Metal Clad Plate
Standard Specification for Reactive and Refractory Metal Clad Plate
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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: B 898 – 05
Standard Specification for
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Reactive and Refractory Metal Clad Plate
This standard is issued under the fixed designation B 898; 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 MIL-J-24445A Joint, Bimetallic Bonded, Aluminum to
Steel
1.1 Thisspecificationcoversplateconsistingofabasemetal
to which is bonded, integrally and continuously, on one or both
3. Terminology
sides a layer of one of the following: titanium, zirconium,
3.1 Definitions of Terms Specific to This Standard:
tantalum, niobium, and their alloys. The material generally is
3.1.1 This material is considered as single-clad or double-
intended for pressure vessel use.
clad dependent upon whether one or both sides of the base
1.2 The values stated in inch-pound units are to be regarded
metal are covered by a cladding metal.
as the standard. The values in parentheses and in metric tables
3.1.2 base metal, n—the component that comprises the
are provided for information only.
greatest percentage of total thickness.
2. Referenced Documents 3.1.3 cladding metal, or cladding metals, n—the compo-
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nent, or components, which individually comprise less than the
2.1 ASTM Standards:
greatest percentage of total thickness.
A 265 Specification for Nickel and Nickel-BaseAlloy-Clad
3.1.4 cladding operation, n—the production event, which
Steel Plate
results in the formation of the bond between the cladding and
A 578/A 578M Specification for Straight-Beam Ultrasonic
base metal components, plus all related prebonding and post
Examination of Plain and Clad Steel Plates for Special
bonding operations, prior to supply to the purchaser.
Applications
3.1.5 interface, n—of the clad product, is that region of
B 265 Specification for Titanium and Titanium Alloy Strip,
thickness in which the product transitions from essentially
Sheet, and Plate
100 % base metal to 100 % cladding metal. Also known as
B 393 Specification for Niobium and Niobium Alloy Strip,
bond or bond zone.
Sheet, and Plate
3.1.6 interlayer, n—a metal layer of a type or grade differ-
B 551/B 551M Specification for Zirconium and Zirconium
ent from the cladding metal and base metal, which is applied
Alloy Strip, Sheet, and Plate
between the cladding and base metal.
B 708 Specification forTantalum andTantalumAlloy Plate,
3.1.7 integrally and continuously bonded, adv—a condition
Sheet, Strip
3 in which the cladding metal and base metal are brought
2.2 ASME Code:
together to form a metallurgical bond at essentially the entire
Boiler and Pressure Vessel Code, Section IX, Welding
interfaceofthetwometalsbymeansotherthanthoseprocesses
Qualifications
that do not produce a homogeneous composite plate.
Boiler and Pressure Vessel Code, Section VIII, Divisions 1,
2, 3
4. Ordering Information
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2.3 Military Standard:
4.1 Orders for material under this specification shall include
the following information:
4.1.1 Quantity.
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This specification is under the jurisdiction of ASTM Committee B10 on
4.1.2 Product dimensions, including thickness of both clad-
Reactive and Refractory Metals and Alloys and is the direct responsibility of
ding metal and base metal. It should state whether each
Subcommittee B10.01 on Titanium.
Current edition approved May 1, 2005. Published June 2005. Originally thicknessvalueisminimumornominal.Ifnotstated,thickness
approved in 1999. Last previous edition approved in 1999 as B 898 – 99.
values shall be nominal.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.3 Cladding metal type and specification (the cladding
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
metal specification) (see Section 6).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
4.1.4 Base metal type and specification (the base metal
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Available from American Society of Mechanical Engineers (ASME), ASME
specification) (see Section 6).
International Headquarters, Three Park Ave., New York, NY 10016-5990.
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4.1.5 Flatness requirements (see 10.3).
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098 4.1.6 Ultrasonic inspection level (see Section 11).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B898–05
4.1.7 Heat treatment requirements, if any. 7.3 Mechanicaltestingofthebasemetal,inaccordancewith
4.1.8 Restrictions limiting or disallowing welding, or weld the base metal specification, may be performed prior to
...
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