ASTM B550/B550M-23

Standard Specification for Zirconium and Zirconium Alloy Bar and Wire

ABSTRACT
This specification covers three grades of zirconium and zirconium alloy bar and wire as grade R60702, unalloyed zirconium; grade R60704, zirconium-tin; and grade R60705, zirconium-niobium. The chemical composition; and mechanical properties requirements, such as tensile strength, yield strength, and elongation; are detailed.
SCOPE
1.1 This specification2 covers three grades of zirconium and zirconium alloy bar and wire.  
1.2 Unless a single unit is used, for example corrosion mass gain in mg/dm2, the 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 following precautionary caveat pertains only to the test methods portions 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

• Status: Published
• Publication Date: 31-Oct-2023
• ICS: 77.150.99 - Other products of non-ferrous metals
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.02 - Zirconium and Hafnium

Relations

• Replaces: ASTM B550/B550M-07(2019) - Standard Specification for Zirconium and Zirconium Alloy Bar and Wire
• Effective Date: 01-Nov-2023
• Referred By: ASTM F2384-10(2016) - Standard Specification for Wrought Zirconium-2.5Niobium Alloy for Surgical Implant Applications (UNS R60901)
• Effective Date: 01-Nov-2023
• Referred By: ASTM B653/B653M-11(2020) - Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Welding Fittings
• Effective Date: 01-Nov-2023

Standards Content (Sample)

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: B550/B550M − 23
Standard Specification for
1
Zirconium and Zirconium Alloy Bar and Wire
This standard is issued under the fixed designation B550/B550M; 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 annealed, n—denotes material that exhibits a recrys-
2
tallized grain structure.
1.1 This specification covers three grades of zirconium and
zirconium alloy bar and wire. 3.2 Lot Definitions:
3.2.1 bar and wire, n—a lot shall consist of a material of the
1.2 Unless a single unit is used, for example corrosion mass
2 same size, shape, condition, and finish produced from the same
gain in mg/dm , the values stated in either inch-pound or SI
ingot or powder blend by the same reduction schedule and the
units are to be regarded separately as standard. The values
same heat treatment parameters. Unless otherwise agreed
stated in each system are not exact equivalents; therefore each
between manufacturer and purchaser, a lot shall be limited to
system must be used independently of the other. SI values
the product of an 8 h period for final continuous anneal, or to
cannot be mixed with inch-pound values.
a single furnace load for final batch anneal.
1.3 The following precautionary caveat pertains only to the
3.2.2 Forms:
test methods portions of this specification. This standard does
3.2.2.1 bar, n—a hot rolled, forged, or cold worked semi-
not purport to address all of the safety concerns, if any,
finished solid section product whose cross sectional area is
associated with its use. It is the responsibility of the user of this
2 2
equal to or less than 16 in. [10 323 mm ]; rectangular bar must
standard to establish appropriate safety, health, and environ-
be less than or equal to 10 in. [254 mm] in width and greater
mental practices and determine the applicability of regulatory
than 0.1875 in. [4.8 mm] in thickness.
limitations prior to use.
3.2.2.2 wire, n—rounds, flats, or special shapes less than or
1.4 This international standard was developed in accor-
equal to 0.1875 in. [4.8 mm] in thickness or major dimension.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Classification
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 4.1 The bar or wire is to be furnished in three grades as
Barriers to Trade (TBT) Committee.
follows:
4.1.1 Grade R60702—Unalloyed zirconium.
2. Referenced Documents
4.1.2 Grade R60704—Zirconium-tin.
3
4.1.3 Grade R60705—Zirconium-niobium.
2.1 ASTM Standards:
E8/E8M Test Methods for Tension Testing of Metallic Ma-
5. Ordering Information
terials
E29 Practice for Using Significant Digits in Test Data to
5.1 Orders for material under this specification should
Determine Conformance with Specifications
include the following information:
5.1.1 Quantity (weight or number of pieces),
3. Terminology
5.1.2 Name of material (zirconium bar or wire) (Table 1),
3.1 Definitions of Terms Specific to This Standard: 5.1.3 Grade number (see 4.1),
5.1.4 Standard designation and year of issue, for example
Specification B550/B550M – 07, and
1
This specification is under the jurisdiction of ASTM Committee B10 on
5.1.5 Additions to the specification as required.
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.02 on Zirconium and Hafnium.
NOTE 1—A typical ordering description is as follows: 1000 lb [500 kg]
Current edition approved Nov. 1, 2023. Published November 2023. Originally
zirconium cold drawn bar, 0.35 in. [10 mm] in diameter by 10 ft [3 m] in
approved in 1971. Last previous edition approved in 2019 as B550/
length, ASTM B550 – 01, Grade R60702.
B550M – 07 (2019). DOI: 10.1520/B0550_B0550M-23.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
6. Materials and Manufacture
cation SB-550 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1 Bar and wire covered by this specification shall be
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
formed with conventional fabrication methods and equipment
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. found in primary ferrous and nonferrous metal plants.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United S
...

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: B550/B550M − 07 (Reapproved 2019) B550/B550M − 23
Standard Specification for
1
Zirconium and Zirconium Alloy Bar and Wire
This standard is issued under the fixed designation B550/B550M; 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
2
1.1 This specification covers three grades of zirconium and zirconium alloy bar and wire.
2
1.2 Unless a single unit is used, for example corrosion mass gain in mg/dm , the 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 following precautionary caveat pertains only to the test methods portions of this specification.This 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, health, and environmental practices and determine the applicability of regulatory limitations prior
to use.
1.4 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.
2. Referenced Documents
3
2.1 ASTM Standards:
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 annealed, n—denotes material that exhibits a recrystallized grain structure.
3.2 Lot Definitions:
3.2.1 bar and wire, n—a lot shall consist of a material of the same size, shape, condition, and finish produced from the same ingot
or powder blend by the same reduction schedule and the same heat treatment parameters. Unless otherwise agreed between
manufacturer and purchaser, a lot shall be limited to the product of an 8 h period for final continuous anneal, or to a single furnace
load for final batch anneal.
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
B10.02 on Zirconium and Hafnium.
Current edition approved Nov. 1, 2019Nov. 1, 2023. Published November 2019November 2023. Originally approved in 1971. Last previous edition approved in 20122019
as B550/B550M – 07 (2012).(2019). DOI: 10.1520/B0550_B0550M-07R19.10.1520/B0550_B0550M-23.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-550 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 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

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B550/B550M − 23
3.2.2 Forms:
3.2.2.1 bar, n—a hot rolled, forged, or cold worked semifinished solid section product whose cross sectional area is equal to or
2 2
less than 16 in.16 in. [10 323 mm323 mm ]; rectangular bar must be less than or equal to 10 in. [254 mm] in width and greater
than 0.1875 in. [4.8 mm] 0.1875 in. [4.8 mm] in thickness.
3.2.2.2 wire, n—rounds, flats, or special shapes less than or equal to 0.1875 in. [4.8 mm] 0.1875 in. [4.8 mm] in thickness or
major dimension.
4. Classification
4.1 The bar or wire is to be furnished in three grades as follows:
4.1.1 Grade R60702—Unalloyed zirconium.
4.1.2 Grade R60704—Zirconium-tin.
4.1.3 Grade R60705—Zirconium-niobium.
5. Ordering Information
5.1 Orders for material under this specification should include the following information:
5.1.1 Quantity (weight or number of pieces),
5.1.2 Name of material (zirconium bar or wire) (Table 1),
5.1.3 Grade number (see 4.1),
5.1.4 Standard designation and year of issue, for example ASTM Specification B550/B550M – 07, and
5.1.5 Additions to the specification as required.
NOTE 1—A
...