ASTM B392-09

Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire

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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2009
• ICS: 77.150.99 - Other products of non-ferrous metals
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.03 - Niobium, Tantalum, and Vanadium

Relations

• Replaces: ASTM B392-03 - Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire
• Effective Date: 01-Oct-2009
• Replaced By: ASTM B392-09e1 - Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire (Withdrawn 2018)
• Effective Date: 01-Oct-2009

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.
Designation: B392 – 09
Standard Specification for
1
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.
1. Scope E2626 Guide for Spectrometric Analysis of Reactive and
Refractory Metals
1.1 This specification covers four grades of wrought nio-
bium and niobium alloy bar, rod, and wire as follows:
3. Terminology
1.1.1 R04200-Type 1—Reactor grade unalloyed niobium,
3.1 Definitions of Terms Specific to This Standard: Descrip-
1.1.2 R04210-Type 2—Commercial grade unalloyed nio-
tions of Terms Specific to This Standard:
bium,
3.1.1 lot, n—alotshallconsistofallmaterialproducedfrom
1.1.3 R04251-Type 3—Reactor grade niobium alloy con-
the same ingot at one time, with the same cross section,
taining 1 % zirconium, and
processed with the same nominal metallurgical parameters and
1.1.4 R04261-Type 4—Commercial grade niobium alloy
heat treated at the same conditions.
containing 1 % zirconium.
3.1.2 bar, n—material less than 6 in. (152.4 mm) in width
1.2 The values stated in inch-pound units are to be regarded
and 0.187 in. (4.75 mm) or greater in thickness, with a
as standard. The values given in parentheses are mathematical
rectangular cross section, supplied in straight lengths.
conversions to SI units that are provided for information only
3.1.3 rod, n—material 0.125 to 2.50 in. (3.18 to 63.50 mm)
and are not considered standard.
in diameter, in round, hexagonal, or octagonal cross section
1.3 The following precautionary caveat pertains only to the
supplied in straight lengths.
test methods portion of this specification. This standard does
3.1.4 wire, n—material 0.020 to 0.124 in. (0.51 to 3.15 mm)
not purport to address all of the safety concerns, if any,
in diameter, furnished in coils or on spools or reels. Material
associated with its use. It is the responsibility of the user of this
less than 0.020 in. (0.51 mm) in diameter is not covered by this
standard to establish appropriate safety and health practices
specification.
and determine the applicability of regulatory limitations prior
to use.
4. Ordering Information
4.1 Orders for materials under this specification shall in-
2. Referenced Documents
2 clude the following information as applicable:
2.1 ASTM Standards:
4.1.1 Type and grade (Section 1),
B391 Specification for Niobium and Niobium Alloy Ingots
4.1.2 ASTM designation and year of issue,
E8 Test Methods for Tension Testing of Metallic Materials
4.1.3 Method of manufacture (Section 5),
E29 Practice for Using Significant Digits in Test Data to
4.1.4 Temper designation (Section 8),
Determine Conformance with Specifications
4.1.5 Quantityinweight,numberofpieces,anddimensions,
4.1.6 Chemistry (6.3),
1
This specification is under the jurisdiction of ASTM Committee B10 on 4.1.7 Mechanical properties (Section 7),
Reactive and Refractory Metals and Alloys and is the direct responsibility of
4.1.8 Condition (8.2),
Subcommittee B10.03 on Niobium and Tantalum.
4.1.9 Permissible Variations (9.2),
Current edition approved Oct. 1, 2009. Published December 2009. Originally
4.1.10 Permissible overshipments (9.4),
approved in 1989. Last previous edition approved in 2003 as B392 - 03. DOI:
10.1520/B0392-09.
4.1.11 Quality and finish (Section 10),
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.12 Sampling (Section 11),
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1.13 Inspection (Section 15),
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.1.14 Required reports (Section 17), and
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B392 – 09
TABLE 2 Additional Chemical Requirements for Finished
4.1.15 Additions to the specification and supplementary
Product (When Specified by the Purchaser)
requirements, as required.
Type 2 Type 4
Type 1 Type 3
(Commercial (Commercial
(Reactor Grade (Reactor Grade
5. Materials and Manufacture
Grade Grade
Element Unalloyed Niobium—1 %
Unalloyed Niobium—1 %
5.1 Material covered by this specification shall be made Niobium) Zirconium)
Niobium) Zirconium)
R04200 R04251
from ingots that conform to Specification B391 and that are
R04210 R04261
produced by vacuum or plasma arc melting, vacuum electron-
Maximum Weight %
beam melting, or a combination of these three methods.
5.2 The various niobium mill products covered by this Oxygen 0.0250 0.0400 0.0250 0.0400
Carbon 0.0100
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:B392–03 Designation: B392 – 09
Standard Specification for
1
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.
1. Scope
1.1 This specification covers four grades of wrought niobium and niobium alloy bar, rod, and wire as follows: Note1—
Committee B10 has adopted “niobium” as the designation for Element No. 41, formerly named “columbium.”
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.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
B391 Specification for Niobium and Niobium Alloy Ingots
E8 Test Methods for Tension Testing of Metallic Materials
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 Definitions of Terms Specific to This Standard: Descriptions of Terms Specific to This Standard:
3.1.1 lotlot, n—a lot shall consist of all material produced from the same ingot at one time, with the same cross section,
processed with the same nominal metallurgical parameters and heat treated at the same conditions.
3.1.2 barbar, n—material less than 6 in. (152.4 mm) in width and 0.187 in. (4.75 mm) or greater in thickness, with a rectangular
cross section, supplied in straight lengths.
3.1.3 rodrod, n—material 0.125 to 2.50 in. (3.18 to 63.50 mm) in diameter, in round, hexagonal, or octagonal cross section
supplied in straight lengths.
3.1.4 wirewire, n—material 0.020 to 0.124 in. (0.51 to 3.15 mm) in diameter, furnished in coils or on spools or reels. Material
less than 0.020 in. (0.51 mm) in diameter is not covered by this specification.
4. Ordering Information
4.1 Orders for materials under this specification shall include the following information as applicable:
4.1.1 Type and grade (Section 1),
4.1.2 ASTM designation and year of issue,
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 Sept. 10, 2003. Published September 2003. Originally approved in 1989. Last previous edition approved in 1999 as B392-99. DOI:
10.1520/B0392-03.
Current edition approved Oct. 1, 2009. Published December 2009. Originally approved in 1989. Last previous edition approved in 2003 as B392 - 03. DOI:
10.1520/B0392-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
, Vol 02.04.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

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B392 – 09
4.1.3 Method of manufacture (Section 5),
4.1.4 Temper designation (Section 8),
4.1.5 Quantity in weight, number of pieces, and dimensions,
4.1.6 Chemistry (6.3),
4.1.7 Mechanical properties (Section 7),
4.1.8 Condition (8.2),
4.1.9 Permissible Variations (9.2),
4.1.10 Permissible overshipments (9.4),
4.1.11 Quality and finish (Section 10),
4.1.12 Sampling (Section 11),
4.1.13 Insp
...