ASTM B652/B652M-10
(Specification)Standard Specification for Niobium-Hafnium Alloy Ingots
Standard Specification for Niobium-Hafnium Alloy Ingots
ABSTRACT
This specification covers hafnium alloyed niobium ingots prepared by vacuum- or plasma- arc melting or electron-beam furnace melting, or a combination of these methods, to produce consolidated metal for processing to various mill shapes. The material shall conform to the required chemical composition prescribed. Each ingot should be tested for soundness by non-destructive test methods, such as dye penetrant and ultrasonic testing. Each ingot shall be tested for chemical composition in at least three positions along the length of the ingot.
SIGNIFICANCE AND USE
The following applies to all specified limits in this standard for purposes of determining conformance with this specification: The observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
SCOPE
1.1 This specification covers hafnium alloyed niobium ingots prepared by vacuum- or plasma- arc melting or electron-beam furnace melting, or a combination of these methods, to produce consolidated metal for processing to various mill shapes.
1.2 The material covered by this specification is Grade R04295, niobium-base alloy containing approximately 10 % hafnium and 1 % titanium.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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Designation: B652/B652M −10
Standard Specification for
1
Niobium-Hafnium Alloy Ingots
This standard is issued under the fixed designation B652/B652M; 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 4.1.2 Quantity in weight or pieces,
4.1.3 Size: diameter and length,
1.1 This specification covers hafnium alloyed niobium in-
gots prepared by vacuum- or plasma- arc melting or electron- 4.1.4 Chemistry (Section 6),
beam furnace melting, or a combination of these methods, to
4.1.5 Quality and finish (see 8.2, 8.4, and 8.6),
produce consolidated metal for processing to various mill
4.1.6 Certifications and Reports (Section 14),
shapes.
4.1.7 Packaging (Section 16), and
1.2 The material covered by this specification is Grade
4.1.8 Disposition of rejected material (Section 12).
R04295, niobium-base alloy containing approximately 10 %
hafnium and 1 % titanium.
5. Materials and Manufacture
1.3 The values stated in either SI units or inch-pound units
5.1 The ingot metal for this material may be vacuum- or
are to be regarded separately as standard. The values stated in
plasma-arc melted, electron-beam melted, or a combination of
each system may not be exact equivalents; therefore, each
these methods.
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
6. Chemical Composition
with the standard.
6.1 The material shall conform to the requirements as to
2. Referenced Documents
chemical composition prescribed in Table 1. Analysis for
2
elements, not listed in Table 1 and not normally expected in
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to niobium hafnium alloy, shall not be required unless specified at
time of purchase. Guide E2626 may be used as a guide for
Determine Conformance with Specifications
E2626 Guide for Spectrometric Analysis of Reactive and chemical analysis techniques.
Refractory Metals
7. Permissible Variations in Quantity
3. Terminology
7.1 For orders requiring up to 100 lb [45 kg] of ingots, the
3.1 Lot Definitions:
manufacturer may overship up to a maximum of 20 %. For
3.1.1 ingot, n—a quantity of metal cast into a shape suitable
orders up to 1000 lb [450 kg], the manufacturer may overship
for subsequent processing to various mill products.
up to a maximum of 10 %. The permissible overshipment shall
be negotiated for orders larger than 1000 lb [450 kg].
4. Ordering Information
4.1 Orders for material under this specification shall include
8. Workmanship, Finish, and Appearance
the following information as applicable:
8.1 Themanufacturershallusecaretohaveeachlotofingot
4.1.1 General alloy description (see 1.2) and ASTM desig-
material as uniform in quality as possible.
nation and year of issue,
8.2 When specified, the ingots shall be conditioned on the
surfacetostandardsagreeduponbetweenthepurchaserandthe
1
This specification is under the jurisdiction of ASTM Committee B10 on
manufacturer.
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.03 on Niobium and Tantalum.
8.3 In the conditioned ingot, no abrupt changes in diameter
Current edition approved May 1, 2010. Published June 2010. Originally
orlocaldepressionsthatwillimpairsubsequentfabricationwill
approved in 1979. Last previous edition approved in 2004 as B652/B652M – 04.
DOI: 10.1520/B0652_B0652M-10.
be permitted. The difference between maximum and minimum
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
radius of the conditioned ingot shall not exceed 5 % of the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
maximum radius. Lands, grooves, and local depressions shall
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. be blended to a maximum angle of 30° to the axis of the ingot.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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B652/B652M − 10
TABLE 1 Chemical Requirements (Ingot)
question relating to the sampling techniques or to the analysis
Niobium-Hafnium Alloy Grade R04295 thereof, the methods for sampling and analysis shall be as
Content, Maximum Weight % (Except agreed upon between the purchaser and the manufacturer.
Element
forHfandTi)
Carbon 0.015 12. Rejection
Oxygen 0.025
12.1 Material that fails to conform to the requirements of
Nitrogen 0.010
Hydrogen 0.0015
this specification may be rejected. Rejection shall be reported
Hafnium 9–11
to the producer or supplier promptly a
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B652/B652M–04 Designation: B652/B652M – 10
Standard Specification for
1
Niobium-Hafnium Alloy Ingots
This standard is issued under the fixed designation B652/B652M; 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
1.1 This specification covers hafnium alloyed niobium ingots prepared by vacuum- or plasma- arc melting or electron-beam
furnace melting, or a combination of these methods, to produce consolidated metal for processing to various mill shapes.
1.2 The material covered by this specification is Grade R04295, niobium-base alloy containing approximately 10 % hafnium
and 1 % titanium.
1.3The values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system
are not exact equivalents; therefore, each system must be used independently of the other. SI values cannot be mixed with
inch-pound values.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications Practice for Using
Significant Digits in Test Data to Determine Conformance with Specifications
E2626 Guide for Spectrometric Analysis of Reactive and Refractory Metals
3. Terminology
3.1 Lot Definitions:
3.1.1 ingot, n—a quantity of metal cast into a shape suitable for subsequent processing to various mill products.
4. Ordering Information
34.1 Orders for material under this specification shall include the following information as applicable:
34.1.1 General alloy description (see 1.2) and ASTM designation and year of issue,
3.1.2Quantity in weight or pieces,
3.1.3Size: diameter and length,
3.1.4Chemistry (Section 5
4.1.2 Quantity in weight or pieces,
4.1.3 Size: diameter and length,
4.1.4 Chemistry (Section 6),
3.1.5Quality and finish (see 7.2
4.1.5 Quality and finish (see 8.2, 7.48.4, and 7.68.6),
3.1.6Certifications and Reports (Section 13
4.1.6 Certifications and Reports (Section 14),
3.1.7Packaging (Section 15
4.1.7 Packaging (Section 16), and
3.1.8Disposition of rejected material (Section 11
4.1.8 Disposition of rejected material (Section 12).
1
This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee
B10.03 on Niobium and Tantalum.
Current edition approved May 1, 2004.2010. Published May 2004.June 2010. Originally approved in 1979. Last previous edition approved in 19962004 as
B652/B652M–96(1999).B652/B652M – 04. DOI: 10.1520/B0652_B0652M-104.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B652/B652M – 10
4.Materials and Manufacture
4.1The ingot metal for this material may be vacuum- or plasma-arc melted, electron-beam melted, or a combination of these
methods.
5. Chemical Composition
5.1The material shall conform to the requirements as to chemical composition prescribed in Materials and Manufacture
5.1 The ingot metal for this material may be vacuum- or plasma-arc melted, electron-beam melted, or a combination of these
methods.
6. Chemical Composition
6.1 The material shall conform to the requirements as to chemical composition prescribed inTable 1.Analysis for elements, not
listed in Table 1 and not normally expected in niobium hafnium alloy, shall not be required unless specified at time of purchase.
6.Permissible Variations in Quantity
6.1For orders requiring up to 100 lb [45 kg] of ingots, the manufacturer may overship up to a maximum of 20%. For orders up
to 1000 lb [450 kg], the manufacturer may overship up to a maximum of 10%. The permissible overshipment shall be negotiated
for orders larger than 1000 lb [450 kg]. and not normally
...
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