ASTM B654/B654M-10(2018)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B654/B654M −10 (Reapproved 2018)
Standard Specification for
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 E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.1 This specification covers hafnium alloyed niobium foil,
E2626 Guide for Spectrometric Analysis of Reactive and
sheet, strip, and plate.
Refractory Metals (Withdrawn 2017)
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 SI units or inch-pound units 3.1.1 foil, n—a flat product less than 6 in. [150 mm] wide
are to be regarded separately as standard. The values stated in and less than 0.005 in. [0.13 mm] in thickness.
each system may not be exact equivalents; therefore, each
3.1.2 lot, n—a lot is defined as that material produced from
system shall be used independently of the other. Combining
one ingot and heat-treated at the same conditions. Unless
values from the two systems may result in non-conformance
otherwise agreed between manufacturer and purchaser, a lot
with the standard.
shall be limited to the product of an 8 h period for final
1.4 The following safety hazards caveat pertains only to the continuous anneal or to a single furnace load for a final batch
test methods portion, Section 14, of this specification: This anneal
standard does not purport to address all of the safety problems,
3.1.3 plate, n—a flat product 6 in. [150 mm] or more in
if any, associated with its use. It is the responsibility of the user
width and more than 0.187 in. [4.8 mm] in thickness.
of this standard to establish appropriate safety, health, and
3.1.4 sheet, n—a flat product 6 in. [150 mm] or more in
environmental practices and determine the applicability of
width and from 0.005 in. [0.13 mm] to 0.187 in. [4.8 mm] in
regulatory limitations prior to use.
thickness.
1.5 This international standard was developed in accor-
3.1.5 strip, n—a flat product, may be supplied in coil, less
dance with internationally recognized principles on standard-
than 6 in. [150 mm] wide and from 0.005 in. [0.13 mm] to
ization established in the Decision on Principles for the
0.187 in. [4.8 mm] in thickness.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Ordering Information
Barriers to Trade (TBT) Committee.
4.1 Orders for material under this specification should
2. Referenced Documents
include the following information as applicable:
4.1.1 General alloy description (see 1.2) and ASTM desig-
2.1 ASTM Standards:
B652/B652M Specification for Niobium-Hafnium Alloy In- nation and year of issue,
4.1.2 Quantity in weight or pieces,
gots
4.1.3 Size, diameter or thickness, width, and length, as
E8/E8M Test Methods for Tension Testing of Metallic Ma-
applicable,
terials
4.1.4 Chemical Composition (Section 6),
E21 TestMethodsforElevatedTemperatureTensionTestsof
4.1.5 Temper (Section 7),
Metallic Materials
4.1.6 Mechanical test temperature and limits (Sections 8
and 14),
This specification is under the jurisdiction of Committee B10 on Reactive and
Refractory Metals and Alloys and is the direct responsibility of Subcommittee
4.1.7 Permissible dimensional tolerances and weight or
B10.03 on Niobium and Tantalum.
quantity variations (see 9.3),
Current edition approved Oct. 1, 2018. Published October 2018. Originally
4.1.8 Quality and finish (see 10.2),
approved in 1979. Last previous edition approved in 2010 as B654/B654M – 10.
DOI: 10.1520/B0654_B0654M-10R18. 4.1.9 Sampling (see 13.2),
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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 last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B654/B654M − 10 (2018)
TABLE 2 Additional Chemical Requirements for Finished Product
4.1.10 Inspection Witnessing (see 15.2),
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
Carbon 0.015
5.1 Materials covered by this specification shall be made
Nitrogen 0.010
Hydrogen 0.0015
from ingots in accordance with Specification B652/B652M.
5.2 The various niobium-hafnium alloy products covered by
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 hafnium alloy products covered by this specification shall be as
prescribed in Table 4.
6.1 The chemical composition of niobium-hafnium alloy
ingots and billets for conversion to finished products covered 9.2 Flatness tolerance for sheet and plate products supplied
by this specification shall conform to the requirements in Table under this specification shall be 6 % maximum, as determined
by the following equation (see Fig. 1):
1.Analysis for elements, not listed in Table 1 and not normally
expected in niobium-hafnium alloy, shall not be required
Flatness,% 5 ~H/L! 3100 (1)
unless specified at time of purchase.
where:
6.2 The manufacturer’s ingot analysis shall be considered
H = maximum vertical distance between a flat reference
the chemical analysis for products supplied under this specifi-
surface and the lower surface of the sheet, and
cation.
L = minimum horizontal distance between the highest point
6.3 When specified in the purchase order, the manufacturer
onthesheetandthepointofcontactwithaflatreference
shall test the product for elements specified in Table 2. The
surface. (The method for taking measurements for
results of the tests shall meet the limits shown in Table 2.
calculation of sheet flatness is shown in Fig. 1.
However, a value of H less than ⁄32 in. [0.8 mm] shall
7. Temper Designations
not be cause for rejection.)
7.1 Unless otherwise stated, the materials supplied under
9.3 Quantity or Weight—For orders up to 100 ft [30 m], the
this specification shall be in the annealed condition, defined as
manufacturer may overship by 20 %. For orders up to 1000 lb
at least 90 % recrystallized.
[450 kg] or 1000 ft [300 m], the manufacturer may overship by
7.2 Other temper designations, such as cold-worked temper
10 %. The permissible overshipment for orders larger than this
or stress-relieved temper may be specified in the purchase
quantity shall be negotiated at the time of purchase.
order.
10. Quality and Finish
8. Mechanical Requirements
10.1 Niobium-hafnium alloy product shall be free of inju-
8.1 Materials in the annealed condition supplied under this
rious external and internal imperfections of a nature that will
specification shall conform to the requirements for mechanical
interfere with the purpose for which it was intended. Material
properties as specified in Table 3. Unless otherwise specified in
may be finished as forged, rolled, extruded, swaged, drawn; in
the purchase order, the materials shall conform to the require-
a cleaned, machined, or ground condition. The manufacturer
ments for room temperature mechanical properties. The pur-
shall be permitted to remove minor surface imperfections
chasermayspecifyelevatedtemperaturemechanicalproperties
provided such removal does not reduce the dimensions below
at the time of purchase.
the minimum permitted by the tolerances in accordance with
Section 9.
TABLE 1 Chemical Requirements for Ingot
10.2 Test methods for these defects and standards of accept-
Niobium-Hafnium Alloy R04295
ability shall be as agreed upon between the purchaser and the
Content, Maximum
manufacturer at the time of purchase.
Weight % (Except
Element
Where Otherwise
11. Retests
Specified)
Carbon 0.015
11.1 If any sample or specimen exhibits obvious surface
Oxygen 0.025
contamination or improper preparation disqualifying it as a
Nitrogen 0.010
truly representative sample, it shall be discarded and a new
Hydrogen 0.0015
Hafnium 9–11
sample or specimen substituted.
Titanium 0.7–1.3
Zirconium 0.700 11.2 In case of failure, two additional specimens shall be
Tungsten 0.500
retested. If both retest specimens conform to this specification,
Tantalum 0.500
the original values shall be discarded and the material ac-
Niobium by difference .
cepted.
B654/B654M − 10 (2018)
A
TABLE 3 Mechanical Properties for Material, Annealed Condition (90 % Minimum Recrystallized)
Ultimate Tensile Yield Strength Elongation in 1 in.
Strength, min, psi (0.2 % offset), min, [25 mm] gage length,
[MPa] psi [MPa] min, %
Material 0.05 in. [1.3 mm] and thinner:
Room temperature 56 000 [385] 40 000 [275] 20
2000 ± 25°F [1100 ± 15°C] 21 000 [145] 1
...