ASTM B394-09

Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes

ABSTRACT
This specification covers wrought niobium and niobium alloy seamless and welded tubes. Material covered by this specification shall be made from ingots that are produced by vacuum or plasma arc melting, vacuum electron-beam melting, or a combination of these three methods. Seamless tubes may be made by any seamless method that will yield a product meeting the requirements of this specification. Welded tubing shall be made from flat-rolled products by an automatic or semiautomatic welding process with no addition of filler metal in the welding operation. The niobium and niobium alloy ingots and billets for conversion to finished products covered by this specification shall conform to the requirements for chemical composition of the following elements: carbon, nitrogen, oxygen, hydrogen, zirconium, tantalum, iron, silicon, tungsten, nickel, molybdenum, hafnium, titanium. When specified, the following elements shall be included in the chemical composition of the specimen: boron, aluminum, beryllium, chromium, and cobalt. The materials supplied under these specifications shall be in the fully annealed condition. Finished niobium and niobium alloy tubes shall be free of injurious internal and external imperfections of a nature that will interfere with the purpose for which it was intended. Hydrostatic and pneumatic tests are optional when the purchaser requires. A hydrostatic test shall be performed on each tube and shall withstand without showing bulges, leaks, or other defects.
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 wrought niobium and niobium alloy seamless and welded tubes 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: 23.040.15 - Non-ferrous metal pipes
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.03 - Niobium, Tantalum, and Vanadium

Relations

• Replaces: ASTM B394-03 - Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes
• 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: B394 – 09
Standard Specification for
1
Niobium and Niobium Alloy Seamless and Welded Tubes
This standard is issued under the fixed designation B394; 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 3.1.1 lot, n—alotshallconsistofallmaterialproducedfrom
the same ingot at one time, with the same cross section,
1.1 This specification covers wrought niobium and niobium
processed with the same nominal metallurgical parameters and
alloy seamless and welded tubes as follows:
heat treated at the same conditions.
1.1.1 R04200-Type 1—Reactor grade unalloyed niobium,
1.1.2 R04210-Type 2—Commercial grade unalloyed nio-
4. Ordering Information
bium,
4.1 Orders for materials under this specification shall in-
1.1.3 R04251-Type 3—Reactor grade niobium alloy con-
clude the following information as applicable:
taining 1 % zirconium, and
4.1.1 Type and grade (Section 1),
1.1.4 R04261-Type 4—Commercial grade niobium alloy
4.1.2 ASTM designation and year of issue,
containing 1 % zirconium.
4.1.3 Welding (Section 5),
1.2 The values stated in inch-pound units are to be regarded
4.1.4 Quantityinweight,numberofpieces,anddimensions,
as standard. The values given in parentheses are mathematical
4.1.5 Chemistry (6.3),
conversions to SI units that are provided for information only
4.1.6 Temper designation (Section 8),
and are not considered standard.
4.1.7 Permissiblevariationsinlengthandquantityorweight
1.3 The following precautionary caveat pertains only to the
B
(9.2, 9.4, and Table 1 ),
test methods portion of this specification. This standard does
4.1.8 Quality and finish (10.4),
not purport to address all of the safety concerns, if any,
4.1.9 Sampling (11.2),
associated with its use. It is the responsibility of the user of this
4.1.10 Hydrostatic or pneumatic test (14.2),
standard to establish appropriate safety and health practices
4.1.11 Inspection (Section 15),
and determine the applicability of regulatory limitations prior
4.1.12 Required reports (Section 17), and
to use.
4.1.13 Additions to the specification and supplementary
2. Referenced Documents requirements, as required.
2
2.1 ASTM Standards:
5. Materials and Manufacture
B391 Specification for Niobium and Niobium Alloy Ingots
5.1 Material covered by this specification shall be made
E8 Test Methods for Tension Testing of Metallic Materials
from ingots that conform to Specification B391 and that are
E29 Practice for Using Significant Digits in Test Data to
produced by vacuum or plasma arc melting, vacuum electron-
Determine Conformance with Specifications
beam melting, or a combination of these three methods.
E2626 Guide for Spectrometric Analysis of Reactive and
5.2 Seamless tubes may be made by any seamless method
Refractory Metals
that will yield a product meeting the requirements of this
3. Terminology specification, such as, but not limited to, extrusion of billets
with subsequent cold working by drawing, swaging, or pilger-
3.1 Definitions of Terms Specific to This Standard:
ing, with intermediate anneals, until the final dimensions are
reached.
1
This specification is under the jurisdiction of ASTM Committee B10 on
5.3 Welded tubing shall be made from flat-rolled products
Reactive and Refractory Metals and Alloys and is the direct responsibility of
by an automatic or semiautomatic welding process with no
Subcommittee B10.03 on Niobium and Tantalum.
additionoffillermetalintheweldingoperation.Othermethods
Current edition approved Oct. 1, 2009. Published December 2009. Originally
approved in 1989. Last previous edition approved in 2003 as B394 - 03. DOI:
ofwelding,suchastheadditionoffillermetalorhandwelding,
10.1520/B0394-09.
may be employed if approved by the purchaser and tested by
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
methods agreed upon between the manufacturer and the
contact ASTM Customer Service at [e-mail]. 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 ----------------------
B394 – 09
TABLE 1 Permissible Variations in Diameter and Wall Thickness
A
Measured at any Location
Variation in Variation in
Outside Inside Variation in
Nominal Outside Diameter, Diameter, Diameter, Wall Thickness,
B
in. (mm) Over and Over and Over and
C,D
Under, in. Under, in. Under, %
B C
(mm) (mm)
0.187 to 0.625 (4.7 to 15.9), excl 0.004 (0.010) 0.004 (0.010) 10
0.625 to 1.000 (15.9 to 25.4), excl 0.005 (0
...

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:B394–03 Designation: B394 – 09
Standard Specification for
1
Niobium and Niobium Alloy Seamless and Welded Tubes
This standard is issued under the fixed designation B394; 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 wrought niobium and niobium alloy seamless and welded tubes 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:
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.
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,
4.1.3 Welding (Section 5),
4.1.4 Quantity in weight, number of pieces, and dimensions,
4.1.5 Chemistry (6.3),
4.1.6 Temper designation (Section 8),
B
4.1.7 Permissible variations in length and quantity or weight (9.2, 9.4, and Table 1 ),
4.1.8 Quality and finish (10.4),
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 B394-99. DOI:
10.1520/B0394-03.
Current edition approved Oct. 1, 2009. Published December 2009. Originally approved in 1989. Last previous edition approved in 2003 as B394 - 03. DOI:
10.1520/B0394-09.
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

---------------------- Page: 1 ----------------------
B394 – 09
TABLE 1 Permissible Variations in Diameter and Wall Thickness
A
Measured at any Location
Variation in Variation in
Outside Inside Variation in
Nominal Outside Diameter, Diameter, Diameter, Wall Thickness,
B
in. (mm) Over and Over and Over and
C,D
Under, in. Under, in. Under, %
B C
(mm) (mm)
0.187 to 0.625 (4.7 to 15.9), excl 0.004 (0.010) 0.004 (0.010) 10
0.625 to 1.000 (15.9 to 25.4), excl 0.005 (0.13) 0.005 (0.13) 10
1.000 to 2.000 (25.4 to 50.8), excl 0.0075 (0.19) 0.0075 (0.19) 10
2.000 to 3.000 (50.8 to 76.2), excl 0.010 (0.25) 0.010 (0.25) 10
3.000 to 4.000 (76.2 to 101.6), excl 0.0125 (0.32) 0.0125 (0.32) 10
A
These tolerances are applicable to only two dimensions, such as outsi
...