ASTM B493/B493M-08
(Specification)Standard Specification for Zirconium and Zirconium Alloy Forgings
Standard Specification for Zirconium and Zirconium Alloy Forgings
ABSTRACT
This specification covers three grades of zirconium and zirconium alloy forgings. The forgings shall be formed with conventional forging equipment normally found in primary ferrous and nonferrous metal plants. The forgings are furnished in three grades as Grade R60702, Grade R60702, and Grade R60705. Forgings shall be furnished in the annealed conditions. The material shall conform to the requirements as to chemical composition and tensile properties prescribed. Two tension tests shall be made from each lot. Two chemistry tests for hydrogen and nitrogen content shall be made from each lot of finished product. If the results of any tests of any lot do not conform to the requirements specified, retests shall be made on additional forgings of double the original number of the same lot, each of which shall conform to the requirements specified.
SCOPE
1.1 This specification covers three grades of zirconium and zirconium alloy forgings.
1.2 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.
1.3 The following safety hazards caveat pertains only to the test method portion, Section 12, of this specification: This standard does not purport to address all of the safety problems, 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.
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Designation: B493/B493M – 08
Standard Specification for
1
Zirconium and Zirconium Alloy Forgings
This standard is issued under the fixed designation B493/B493M; 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 shall be limited to the product of an 8 h period for final
2 continuous anneal, or to a single furnace load for final batch
1.1 This specification covers three grades of zirconium and
anneal.
zirconium alloy forgings.
1.2 The values stated in either SI units or inch-pound units
4. Classification
are to be regarded separately as standard. The values stated in
4.1 The forgings are furnished in three grades as follows:
each system may not be exact equivalents; therefore, each
4.1.1 Grade R60702—Unalloyed zirconium.
system shall be used independently of the other. Combining
4.1.2 Grade R60704—Zirconium-tin alloy.
values from the two systems may result in non-conformance
4.1.3 Grade R60705—Zirconium-niobium alloy.
with the standard.
1.3 The following safety hazards caveat pertains only to
5. Ordering Information
the test method portion, Section 12, of this specification: This
5.1 Orders for material under this specification shall include
standard does not purport to address all of the safety problems,
the following information:
if any, associated with its use. It is the responsibility of the user
5.1.1 Quantity (weight and number of pieces),
of this standard to establish appropriate safety and health
5.1.2 Name of material (zirconium forgings),
practices and determine the applicability of regulatory limita-
5.1.3 Finish (Section 9),
tions prior to use.
5.1.4 Dimension (diameter, thickness, length, width, or as
specified in appropriate drawings),
2. Referenced Documents
3
5.1.5 ASTM designation and year of issue,
2.1 ASTM Standards:
5.1.6 Grade number (see 3.1), and
E8 Test Methods for Tension Testing of Metallic Materials
5.1.7 Additions to the specification and supplementary re-
3. Terminology quirements, if required, including, but not limited to: product
marking (see 17.1), check analysis (see 7.3), inspection (see
3.1 Lot Definition:
13.1), lot definition (see 3.1.1), internal soundness (see S1.1),
3.1.1 forgings, n—parts, including semi-finished products,
and surface quality (see S2.1) requirements.
or complex shapes, produced by hot mechanical work using
hammers, presses, or forging machines; a lot shall consist of a
NOTE 1—A typical ordering description is as follows: 8000-lb zirco-
materialofthesamesize,shape,condition,andfinishproduced
nium forgings, mechanically descaled, 100 mm by 120 mm by 1.2 m.
rectangular bar, ASTM B493/ 493M - 08, Grade R60702.
from the same ingot or powder blend by the same reduction
schedule and the same heat treatment parameters. Unless
6. Materials and Manufacture
otherwise agreed between manufacturer and purchaser, a lot
6.1 The forgings shall be formed with conventional forging
equipment normally found in primary ferrous and nonferrous
1
This specification is under the jurisdiction of ASTM Committee B10 on
metal plants.
Reactive and Refractory Metals and Alloys and is the direct responsibility of
6.2 Forgings shall be furnished in the annealed conditions.
Subcommittee B10.02 on Zirconium and Hafnium.
Current edition approved Nov. 1, 2008. Published December 2008. Originally
7. Chemical Composition
approved in 1969. Last previous edition approved in 2003 as B493 – 01 (2003).
DOI: 10.1520/B0493_B0493M-08.
7.1 The material shall conform to the requirements as to
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
chemical composition prescribed in Table 1.
cation SB-493 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7.2 The manufacturer’s ingot analysis shall be considered
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the chemical analysis for forgings, except for hydrogen and
Standards volume information, refer to the standard’s Document Summary page on
nitrogen, which shall be determined on the finished product.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B493/B493M – 08
A
TABLE 1 Chemical Requirements TABLE 3 Tensile Requirements
Composition, % UNS Grade Designation
R60702 R60704 R60705
Element UNS Grade Designation
Tensile strength, min, MPa [ksi] 380 [55] 415 [60] 485 [70]
Yield strength, min, MPa [ksi] 205 [30] 240 [35] 380 [55]
R60702 R60704 R60705
Elongation in 50 mm [2 in.], 16 14 16
B
Zirconium + hafnium
...
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:B493–01(Reapproved2003) Designation: B 493/B 493M – 08
Standard Specification for
1
Zirconium and Zirconium Alloy Forgings
This standard is issued under the fixed designation B 493/B 493M; 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 forgings.
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 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.
1.3 Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Section12,ofthisspecification: This standard
does not purport to address all of the safety problems, 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
3
2.1 ASTM Standards:
E 8 Test Methods for Tension Testing of Metallic Materials
3. Terminology
3.1 Lot Definitions:
3.1.1castings—a lot shall consist of all castings produced from the same pour.
3.1.2ingot—no definition required.
3.1.3rounds, flats, tubes, and wrought powder metallurgical products (single definition, common to nuclear and non-nuclear
standards)—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.
3.1.4sponge—a lot shall consist of a single blend produced at one time.
3.1.5weld fittings—definition is to be mutually agreed upon between manufacturer and the purchaser. Lot Definition:
3.1.1 forgings, n—parts, including semi-finished products, or complex shapes, produced by hot mechanical work using
hammers,presses,orforgingmachines;alotshallconsistofamaterialofthesamesize,shape,condition,andfinishproducedfrom
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.
4. Classification
4.1 The forgings are furnished in three grades as follows:
4.1.1 Grade R60702—Unalloyed zirconium.
4.1.2 Grade R60704—Zirconium-tin alloy.
4.1.3 Grade R60705—Zirconium-niobium alloy.
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 May 10, 2003. Published May 2003. Originally approved in 1969. Last previous edition approved in 2001 as B493–01.
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1969. Last previous edition approved in 2003 as B 493 – 01 (2003).
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-493 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 03.01.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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B 493/B 493M – 08
5. Ordering Information
5.1 Orders for material under this specification shall include the following information:
5.1.1 Quantity (weight and number of pieces),
5.1.2 Name of material (zirconium forgings),
5.1.3 Finish (Section 9),
5.1.4 Dimension (diameter, thickness, length, width, or as specified in appropriate drawings),
5.1.5 ASTM designation and year of issue,
5.1.6 Grade number (s
...
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