Standard Specification for Zirconium and Zirconium Alloy Ingots for Nuclear Application

ABSTRACT
This specification covers vacuum-melted zirconium and zirconium alloy ingots for nuclear application. Materials covered shall be produced by multiple vacuum arc melting, or electron beam melting, or other melting processes conventionally used for reactive metals. Unless otherwise specified, ingots shall be conditioned by machining or grinding or both to remove surface and subsurface defects detrimental to subsequent fabrication. The ingot shall conform to the chemical composition requirements prescribed. The ingots shall be analyzed for the alloying and impurity elements prescribed. Ingots shall be inspected ultrasonically using the prescribed methods. The test shall be conducted in accordance with practice E 114.
SCOPE
1.1 This specification covers vacuum-melted zirconium and zirconium alloy ingots for nuclear application.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
The following precautionary caveat pertains only to the test method 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 and health practices and determine the applicability of regulatory limitations prior to use.

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Publication Date
31-Aug-2006
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ASTM B350/B350M-02(2006) - Standard Specification for Zirconium and Zirconium Alloy Ingots for Nuclear Application
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Used in USNRC-RDT standards
Designation: B350/B350M – 02 (Reapproved 2006)
Standard Specification for
Zirconium and Zirconium Alloy Ingots for Nuclear
Application
This standard is issued under the fixed designation B350/B350M; 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 3.1.3 rounds, flats, tubes, and wrought powder metallurgical
products (single definition, common to nuclear and non-
1.1 This specification covers vacuum-melted zirconium and
nuclear standards), n—a lot shall consist of a material of the
zirconium alloy ingots for nuclear application.
same size, shape, condition, and finish produced from the same
1.2 The values stated in either inch-pound units or SI units
ingot or powder blend by the same reduction schedule and the
are to be regarded separately as standard. Within the text, the
same heat treatment parameters. Unless otherwise agreed
SI units are shown in brackets. The values stated in each
between manufacturer and purchaser, a lot shall be limited to
system are not exact equivalents; therefore, each system shall
the product of an 8 h period for final continuous anneal, or to
be used independently of the other. Combining values from the
a single furnace load for final batch anneal.
two systems may result in nonconformance with the specifi-
3.1.4 sponge, n—a lot shall consist of a single blend
cation.
produced at one time.
1.3 The following precautionary caveat pertains only to the
3.1.5 weld fittings, n—definition is to be mutually agreed
test method portions of this specification: This standard does
upon between manufacturer and the purchaser.
not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user of this
4. Classification
standard to establish appropriate safety and health practices
4.1 Ingots are furnished in five grades as follows:
and determine the applicability of regulatory limitations prior
4.1.1 R60001 Unalloyed Zirconium,
to use.
4.1.2 R60802 Zirconium-Tin Alloy,
2. Referenced Documents 4.1.3 R60804 Zirconium-Tin Alloy,
4.1.4 R60901 Zirconium-Niobium Alloy, and
2.1 ASTM Standards:
4.1.5 R60904 Zirconium-Niobium Alloy.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5. Ordering Information
E114 Practice for Ultrasonic Pulse-Echo Straight-Beam Ex-
5.1 Orders for material under this specification should
amination by the Contact Method
include the following information as required to describe
3. Terminology adequately the desired material:
5.1.1 Quantity in weight or pieces,
3.1 Lot Definitions:
5.1.2 Name of material,
3.1.1 castings, n—alotshallconsistofallcastingsproduced
5.1.3 Grade (Table 1),
from the same pour.
5.1.4 Size (diameter, length, or weight), in the unit system
3.1.2 ingot, n—no definition required.
regarded as standard (inch-pound or SI), and
5.1.5 ASTM designation and year of issue.
This specification is under the jurisdiction of ASTM Committee B10 on NOTE 1—A typical ordering description is as follows: two each zirco-
Reactive and Refractory Metals and Alloys and is the direct responsibility of
nium ingots, Grade R60001, 12 in. diameter by 1000 lb each, ASTM
Subcommittee B10.02 on Zirconium and Hafnium.
Specification: B350/B350M – 01.
Current edition approved Sept. 1, 2006. Published September 2006. Originally
5.2 In addition to the data specified in 5.1, the following
approved in 1960. Last previous edition approved in 2002 as B350/B350M – 02.
DOI: 10.1520/B0350_B0350M-02R06.
options and points of agreement between the manufacturer and
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the purchaser should be specified in the purchase order if
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
required:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 5.2.1 Inspection (Section 12), and
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B350/B350M – 02 (2006)
TABLE 1 Chemical Requirements
Composition, Weight %
Element
UNS R60001 UNS R60802 UNS R60804 UNS R60901 UNS R60904
Tin . 1.20–1.70 1.20–1.70 . .
Iron . 0.07–0.20 0.18–0.24 . .
Chromium . 0.05–0.15 0.07–0.13 . .
Nickel . 0.03–0.08 . . .
Niobium (columbium) . . . 2.40–2.80 2.50–2.80
AA A A
Oxygen 0.09–0.15
Iron + chromium + nickel . 0.18–0.38 . . .
Iron + chromium . . 0.28–0.37 . .
Maximum Impurities, Weight %
Aluminum 0.0075 0.0075 0.0075 0.0075 0.0075
Boron 0.00005 0.00005 0.00005 0.00005 0.00005
Cadmium 0.00005 0.00005 0.00005 0.00005 0.00005
Calcium . 0.0030 0.0030 . .
Carbon 0.027 0.027 0.027 0.027 0.027
Chromium 0.020 . . 0.020 0.020
Cobalt 0.0020 0.0020 0.0020 0.0020 0.0020
Copper 0.0050 0.0050 0.0050 0.0050 0.0050
Hafnium 0.010 0.010 0.010 0.010 0.010
Hydrogen 0.0025 0.0025 0.0025 0.0025 0.0010
Iron 0.150 . . 0.150 0.150
Magnesium 0.0020 0.0020 0.0020 0.0020 0.0020
Manganese 0.0050 0.0050 0.0050 0.0050 0.0050
Molybdenum 0.0050 0.0050 0.0050 0.0050 0.0050
Nickel 0.0070 . 0.0070 0.0070 0.0070
Niobium . 0.0100 0.0100 . .
Nitrogen 0.0080 0.0080 0.0080 0.0080 0.0080
Phosphorus . . . 0.0020 0.0020
Silicon 0.0120 0.0120 0.0120 0.0120 0.012
Tin 0.0050 . . 0.010 0.010
Tungsten 0.010 0.010 0.010 0.010 0.010
Titanium 0.0050 0.0050 0.0050 0.0050 0.0050
Uranium (total) 0.00035 0.00035 0.00035 0.00035 0.00035
A
When so specified in the purchase order, oxygen shall be determined and reported. Maximum, minimum, or both, permissible values should be specified in the
purchase order.
5.2.2 Oxygen analysis requirements (Table 1). 8.2 The ingot shall be sampled in sufficient places along the
side wall so that the top sample is within 5 in. [125 mm] of the
6. Materials and Manufacture
top face and the distance between samples or between the
bottom face and a sample does not exceed one ingot diameter.
6.1 Materials covered by this specification shall be pro-
A minimum of three samples per ingot is required.
duced by multiple vacuum arc melting, or electron beam
melting, or other melting processes conventionally used for
8.3 These samples shall be analyzed for the alloying and
reactive metals; all melting is to be carried out in furnaces
impurity elements given in Table 1.
usually used for reactive metals.
8.4 Analysis shall be made using the manufacturer’s stan-
dard methods. In the event of disagreement as to the chemical
7. Condition
composition of the metal, methods of chemical analysis for
7.1 Unless otherwise specified, ingots shall be conditioned
reference purposes shall be determined by a mutually accept-
by machining or grinding or both to remove surface and
able laboratory.
subsurface defects detrimental to subsequent fabrication.
8.5 Product Check Analysis—Product check analysis is an
7.2 After conditioning has been completed, no abrupt
analysis made by or for the purchaser for the purpose of
changes in diameter or local depression that will impair
verifying the composition of the ingot. The check analysis
subsequent fabrication shall be permitted. The difference
tolerances reflect the variation between laboratories in the
between the maximum and minimum radii of the conditioned
measurement of chemical composition. The permissible varia-
ingot shall not exceed 20 % of the maximum radius. Lands,
tion in the
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