ASTM B654/B654M-04

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Designation: B654/B654M – 04
Standard Specification for
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Niobium-Hafnium Alloy Foil, Sheet, Strip, and Plate
This standard is issued under the fixed designation B654/B654M; 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 E21 Test Methods for Elevated Temperature Tension Tests
of Metallic Materials
1.1 This specification covers hafnium alloyed niobium foil,
E29 Practice for Using Significant Digits in Test Data to
sheet, strip, and plate.
Determine Conformance with Specifications
1.2 The material covered by this specification is R04295,
niobium-base alloy containing approximately 10 % hafnium
3. Terminology
and 1 % titanium.
3.1 Definitions:
1.3 The values stated in either inch-pound units or SI units
3.1.1 foil, n—a flat product less than 6 in. [150 mm] wide
are to be regarded separately as standard. Within the text, the
and less than 0.005 in. [0.13 mm] in thickness.
SI units are shown in brackets. The values stated in each
3.1.2 lot, n—a lot is defined as that material produced from
system are not exact equivalents; therefore, each system shall
one ingot and heat-treated at the same conditions.
be used independently of the other. Combining values from the
3.1.3 plate, n—a flat product 6 in. [150 mm] or more in
two systems may result in nonconformance with the specifi-
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width and more than ⁄16 in. [4.8 mm] in thickness.
cation.
3.1.4 sheet, n—a flat product 6 in. [150 mm] or more in
1.4 The following safety hazards caveat pertains only to the
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width and from 0.005 in. [0.13 mm] to ⁄16 in. [4.8 mm] in
test methods portion, Section 14, of this specification: This
thickness.
standard does not purport to address all of the safety problems,
3.1.5 strip, n—a flat product, may be supplied in coil, less
if any, associated with its use. It is the responsibility of the user
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than 6 in. [150 mm] wide and from 0.005 in. [0.13 mm] to ⁄16
of this standard to establish appropriate safety and health
in. [4.8 mm] in thickness.
practices and determine the applicability of regulatory limita-
tions prior to use.
4. Ordering Information
2. Referenced Documents 4.1 Orders for material under this specification should
2 include the following information as applicable:
2.1 ASTM Standards:
4.1.1 General alloy description (see 1.2) and ASTM desig-
B652/B652M Specification for Niobium-HafniumAlloy In-
nation and year of issue,
gots
4.1.2 Quantity in weight or pieces,
E8 Test Methods for Tension Testing of Metallic Materials
4.1.3 Size, diameter or thickness, width, and length, as
applicable,
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This specification is under the jurisdiction of Committee B10 on Reactive and 4.1.4 Chemical Composition (Section 6),
Refractory Metals and Alloys and is the direct responsibility of Subcommittee
4.1.5 Temper (Section 7),
B10.03 on Niobium and Tantalum.
4.1.6 Mechanical test temperature and limits (Sections 8
Current edition approved May 1, 2004. Published May 2004. Originally
and 14),
approved in 1979. Last previous edition approved in 2003 as B654 – 03. DOI:
10.1520/B0654_B0654M-04.
4.1.7 Permissible dimensional tolerances and weight or
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
quantity variations (see 9.3),
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.1.8 Quality and finish (see 10.2),
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.1.9 Sampling (see 13.2),
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B654/B654M – 04
TABLE 2 Additional Chemical Requirements for Finished
4.1.10 Inspection Witnessing (see 15.2),
Product
4.1.11 Certification Requirements (Section 18), and
Niobium-Hafnium Alloy R04295
4.1.12 Packaging (Section 20).
Content, Maximum
Element
Weight %
5. Materials and Manufacture
Oxygen 0.035
5.1 Materials covered by this specification shall be made
Carbon 0.015
from ingots in accordance with Specification B652/B652M.
Nitrogen 0.010
5.2 Thevariousniobium-hafniumalloyproductscoveredby Hydrogen 0.0015
this specification are formed with the conventional extrusion,
forging, and rolling equipment normally available in metal
9. Permissible Variations
working plants.
9.1 Dimensional tolerances—Tolerances on niobium-
6. Chemical Composition
hafniumalloyproductscoveredbythisspecificationshallbeas
6.1 The chemical composition of niobium-hafnium alloy
prescribed in Table 4.
ingots and billets for conversion to finished products covered 9.2 Flatness tolerance for sheet and plate products supplied
by t
...