ASTM B392-09e1
(Specification)Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire (Withdrawn 2018)
Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire (Withdrawn 2018)
ABSTRACT
This specification covers four grades of wrought niobium and niobium alloy bar, rod, and wire as R04200-Type 1, reactor grade unalloyed niobium; R04210-Type 2, commercial grade unalloyed niobium; R04251-Type 3, reactor grade niobium alloy containing 1 % zirconium; and R04261-Type 4, commercial grade niobium alloy containing 1 % zirconium. The chemical; and mechanical properties requirements, such as Brinell hardness, tensile strength, yield strength, and elongations; as well as the temper designations are detailed.
SIGNIFICANCE AND USE
For the purposes of determining compliance with the specified limits for requirements of the properties listed in this specification, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.
SCOPE
1.1 This specification covers four grades of wrought niobium and niobium alloy bar, rod, and wire as follows:
1.1.1 R04200-Type 1—Reactor grade unalloyed niobium,
1.1.2 R04210-Type 2—Commercial grade unalloyed niobium,
1.1.3 R04251-Type 3—Reactor grade niobium alloy containing 1 % zirconium, and
1.1.4 R04261-Type 4—Commercial grade niobium alloy containing 1 % zirconium.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 The following precautionary caveat pertains only to the test methods portion of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
WITHDRAWN RATIONALE
This specification covers four grades of wrought niobium and niobium alloy bar, rod, and wire: R04200–Type 1, R04210–Type 2, R04251–Type 3, and R04621–Type 4.
Formerly under the jurisdiction of Committee B10 on Reactive and Refractory Metals and Alloys, this specification was withdrawn in January 2018 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
General Information
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Standards Content (Sample)
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:B392 −09
Standard Specification for
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Niobium and Niobium Alloy Bar, Rod, and Wire
This standard is issued under the fixed designation B392; 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—Editorial corrections were made throughout in January 2010.
1. Scope 3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1.1 This specification covers four grades of wrought nio-
3.1.1 lot, n—alotshallconsistofallmaterialproducedfrom
bium and niobium alloy bar, rod, and wire as follows:
the same ingot at one time, with the same cross section,
1.1.1 R04200-Type 1—Reactor grade unalloyed niobium,
processed with the same nominal metallurgical parameters and
1.1.2 R04210-Type 2—Commercial grade unalloyed
heat treated at the same conditions.
niobium,
3.1.2 bar, n—material less than 6 in. (152.4 mm) in width
1.1.3 R04251-Type 3—Reactorgradeniobiumalloycontain-
and 0.187 in. (4.75 mm) or greater in thickness, with a
ing 1 % zirconium, and
rectangular cross section, supplied in straight lengths.
1.1.4 R04261-Type 4—Commercial grade niobium alloy
containing 1 % zirconium.
3.1.3 rod, n—material 0.125 to 2.50 in. (3.18 to 63.50 mm)
in diameter, in round, hexagonal, or octagonal cross section
1.2 The values stated in inch-pound units are to be regarded
supplied in straight lengths.
as standard. The values given in parentheses are mathematical
3.1.4 wire, n—material 0.020 to 0.124 in. (0.51 to 3.15 mm)
conversions to SI units that are provided for information only
in diameter, furnished in coils or on spools or reels. Material
and are not considered standard.
less than 0.020 in. (0.51 mm) in diameter is not covered by this
1.3 The following precautionary caveat pertains only to the
specification.
test methods portion of this specification. This standard does
not purport to address all of the safety concerns, if any,
4. Ordering Information
associated with its use. It is the responsibility of the user of this
4.1 Orders for materials under this specification shall in-
standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior clude the following information as applicable:
to use. 4.1.1 Type and grade (Section 1),
4.1.2 ASTM designation and year of issue,
2. Referenced Documents 4.1.3 Method of manufacture (Section 5),
2 4.1.4 Temper designation (Section 8),
2.1 ASTM Standards:
4.1.5 Quantityinweight,numberofpieces,anddimensions,
B391 Specification for Niobium and Niobium Alloy Ingots
4.1.6 Chemistry (6.3),
E8 Test Methods for Tension Testing of Metallic Materials
4.1.7 Mechanical properties (Section 7),
E29 Practice for Using Significant Digits in Test Data to
4.1.8 Condition (8.2),
Determine Conformance with Specifications
4.1.9 Permissible Variations (9.2),
E2626 Guide for Spectrometric Analysis of Reactive and
4.1.10 Permissible overshipments (9.4),
Refractory Metals
4.1.11 Quality and finish (Section 10),
4.1.12 Sampling (Section 11),
4.1.13 Inspection (Section 15),
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This specification is under the jurisdiction of ASTM Committee B10 on
4.1.14 Required reports (Section 17), and
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.03 on Niobium and Tantalum.
4.1.15 Additions to the specification and supplementary
Current edition approved Oct. 1, 2009. Published December 2009. Originally
requirements, as required.
approved in 1989. Last previous edition approved in 2003 as B392 - 03. DOI:
10.1520/B0392-09E01.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5. Materials and Manufacture
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 Material covered by this specification shall be made
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. from ingots that conform to Specification B391 and that are
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B392−09
TABLE 2 Additional Chemical Requirements for Finished Product
produced by vacuum or plasma arc melting, vacuum electron-
(When Specified by the Purchaser)
beam melting, or a combination of these three methods.
Type 2 Type 4
Type 1 Type 3
5.2 The various niobium mill products covered by this
(Commercial (Commercial
(Reactor Grade (Reactor Grade
Grade Grade
specification are formed with the conventional extrusion,
Element Unalloyed Niobium—1 %
Unalloyed Niobium—1 %
forging, swaging, rolling, and drawing equipment normally
Nio
...
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