ASTM B495-05
(Specification)Standard Specification for Zirconium and Zirconium Alloy Ingots
Standard Specification for Zirconium and Zirconium Alloy Ingots
ABSTRACT
This specification covers the six grades of zirconium and zirconium alloy ingots: Grade R60700, Grade R60702, Grade R60703, Grade R60704, Grade R60705, and Grade R60706. These materials shall be manufactured by electron beam, vacuum, or inert atmosphere melting in furnaces. The material shall form to the required chemical composition of zirconium, hafnium, iron, chromium, tin, hydrogen, nitrogen, carbon, niobium, and oxygen. Check analysis shall be performed. The following test methods shall be done: ultrasonic test and chemical test.
SCOPE
1.1 This specification covers six grades of zirconium ingots.
1.2 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 method portion, Section 10, 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
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Standards Content (Sample)
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Designation: B495 – 05
Standard Specification for
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Zirconium and Zirconium Alloy Ingots
This standard is issued under the fixed designation B495; 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 the product of an 8 h period for final continuous anneal, or to
a single furnace load for final batch anneal.
1.1 This specification covers six grades of zirconium ingots.
3.1.4 sponge, n—a lot shall consist of a single blend
1.2 The values stated in either inch-pound or SI units are to
produced at one time.
be regarded separately as standard. The values stated in each
3.1.5 weld fittings, n—definition is to be mutually agreed
system are not exact equivalents; therefore, each system must
upon between manufacturer and the purchaser.
be used independently of the other. SI values cannot be mixed
with inch-pound values.
4. Classification
1.3 The following precautionary caveat pertains only to the
4.1 The ingots are furnished in six grades as follows:
test method portion, Section 10, of this specification: This
4.1.1 Grade R60700—Low oxygen unalloyed zirconium.
standard does not purport to address all of the safety concerns,
4.1.2 Grade R60702— Unalloyed zirconium.
if any, associated with its use. It is the responsibility of the user
4.1.3 Grade R60703— Unalloyed zirconium, metallurgical
of this standard to establish appropriate safety and health
grade.
practices and determine the applicability of regulatory limita-
4.1.4 Grade R60704— Zirconium-tin alloy.
tions prior to use.
4.1.5 Grade R60705— Zirconium-niobium alloy.
2. Referenced Documents 4.1.6 Grade R60706— Zirconium-niobium alloy.
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2.1 ASTM Standards:
5. Ordering Information
E114 Practice for Ultrasonic Pulse-Echo Straight-Beam Ex-
5.1 Orders for materials under this specification shall in-
amination by the Contact Method
clude the following information:
3. Terminology 5.1.1 Quantity (weight),
5.1.2 Name of material (zirconium ingot),
3.1 Lot Definitions:
5.1.3 Grade number (Section 4),
3.1.1 castings, n—alotshallconsistofallcastingsproduced
5.1.4 ASTM designation and year of issue,
from the same pour.
5.1.5 Finish (Section 8), and
3.1.2 ingot, n—no definition required.
5.1.6 Additions to the specification and supplementary re-
3.1.3 rounds, flats, tubes, and wrought powder metallurgical
quirements, if required.
products (single definition, common to nuclear and non-
nuclear standards), n—a lot shall consist of a material of the
NOTE 1—A typical ordering description is as follows: 10,000-lb zirco-
same size, shape, condition, and finish produced from the same
nium ingot, machine conditioned,ASTM B495, dated __, Grade R60702.
ingot or powder blend by the same reduction schedule and the
6. Materials and Manufacture
same heat treatment parameters. Unless otherwise agreed
6.1 The ingots covered by this specification shall be manu-
between manufacturer and purchaser, a lot shall be limited to
factured by electron beam, vacuum, or inert atmosphere
melting in furnaces conventionally used for reactive metals.
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This specification is under the jurisdiction of ASTM Committee B10 on
Reactive and Refractory Metals and Alloys and is the direct responsibility of
7. Chemical Composition
Subcommittee B10.02 on Zirconium and Hafnium.
Current edition approved May 1, 2005. Published June 2005. Originally 7.1 The material shall conform to the requirements as to
approved in 1969. Last previous edition approved in 2001 as B495 – 01. DOI:
chemical composition prescribed in Table 1.
10.1520/B0495-05.
7.2 When requested by the purchaser, a check analysis shall
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be performed for any elements listed in Table 1.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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B495 – 05
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TABLE 1 Chemical Requirements
Composition, %
Element UNS Grade Designation
R60700 R60702 R60703 R60704 R60705 R60706
Zirconium + hafnium, 99.2 99.2 98.0 97.5 95.5 95.5
min
Hafnium, max 4.5 4.5 4.5 4.5 4.5 4.5
Iron + chromium 0.2 max 0.2 max . 0.2 to 0.4 0.2 max 0.2 max
Tin . . . 1.00 to 2.00 . .
Hydrogen, max 0.004 0.004 . 0.005 0.005 0.005
Nitrogen, max 0.020 0.020 . 0.025 0.025 0.025
Carbon, max 0.05 0.05 . 0.05 0.05 0.05
Niobium . . . . 2.0 to 3.0 2.0 to 3.0
Oxygen, max 0.10 0.16 . 0.18 0.18 0.16
A
By agreement between the p
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