ASTM B350/B350M-11(2021)

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:B350/B350M −11 (Reapproved 2021) Used in USNRC-RDT standards
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 Scope Refractory Metals (Withdrawn 2017)
1.1 This specification covers vacuum-melted zirconium and
3. Terminology
zirconium alloy ingots for nuclear application.
3.1 Lot Definitions:
1.2 The values stated in either inch-pound units or SI units
3.1.1 ingot, n—a quantity of metal cast into a shape suitable
are to be regarded separately as standard. Within the text, the
for subsequent processing to various mill products.
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system shall
4. Classification
be used independently of the other. Combining values from the
4.1 Ingots are furnished in five grades as follows:
two systems may result in nonconformance with the specifi-
4.1.1 R60001 Unalloyed Zirconium,
cation.
4.1.2 R60802 Zirconium-Tin Alloy,
1.3 The following precautionary caveat pertains only to the
4.1.3 R60804 Zirconium-Tin Alloy,
test method portions of this specification: This standard does
4.1.4 R60901 Zirconium-Niobium Alloy, and
not purport to address all of the safety concerns, if any,
4.1.5 R60904 Zirconium-Niobium Alloy.
associated with its use. It is the responsibility of the user of this
5. Ordering Information
standard to establish appropriate safety, health, and environ-
mental practices and determine the applicability of regulatory
5.1 Orders for material under this specification should
limitations prior to use.
include the following information as required to describe
1.4 This international standard was developed in accor-
adequately the desired material:
dance with internationally recognized principles on standard-
5.1.1 Quantity in weight or pieces,
ization established in the Decision on Principles for the
5.1.2 Name of material,
Development of International Standards, Guides and Recom-
5.1.3 Grade (Table 1),
mendations issued by the World Trade Organization Technical
5.1.4 Size (diameter, length, or weight), in the unit system
Barriers to Trade (TBT) Committee.
regarded as standard (inch-pound or SI), and
5.1.5 ASTM designation and year of issue.
2. Referenced Documents
NOTE 1—A typical ordering description is as follows: two each
2.1 ASTM Standards: zirconium ingots, Grade R60001, 12 in. diameter by 1000 lb each,ASTM
Specification: B350/B350M – 01.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5.2 In addition to the data specified in 5.1, the following
E114 Practice for Ultrasonic Pulse-Echo Straight-Beam options and points of agreement between the manufacturer and
Contact Testing
the purchaser should be specified in the purchase order if
E2626 Guide for Spectrometric Analysis of Reactive and
required:
5.2.1 Inspection (Section 12), and
5.2.2 Oxygen analysis requirements (Table 1).
This specification is under the jurisdiction of ASTM Committee B10 on
6. Materials and Manufacture
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.02 on Zirconium and Hafnium.
6.1 Materials covered by this specification shall be pro-
Current edition approved April 1, 2021. Published April 2021. Originally
duced by multiple vacuum arc melting, or electron beam
approved in 1960. Last previous edition approved in 2016 as B350/B350M – 11
ɛ1
melting, or other melting processes conventionally used for
(2016) . DOI: 10.1520/B0350_B0350M-11R21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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 last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B350/B350M−11 (2021)
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.
reactive metals; all melting is to be carried out in furnaces 8.2 The ingot shall be sampled in sufficient places along the
usually used for reactive metals. side wall so that the top sample is within 5 in. [125 mm] of the
top face and the distance between samples or between the
7. Condition
bottom face and a sample does not exceed one ingot diameter.
A minimum of three samples per ingot is required.
7.1 Unless otherwise specified, ingots shall be conditioned
by machining or grinding or both to remove surface and
8.3 These samples shall be analyzed for the alloying and
subsurface defects detrimental to subsequent fabrication.
impurity elements given in Table 1.
7.2 After conditioning has been completed, no abrupt
8.4 Analysis shall be made using the manufacturer’s stan-
changes in diameter or local depression that will impair
dard methods. In the event of disagreement as to the chemical
subsequent fabrication shall be permitted. The difference
composition of the metal, methods of chemical analysis for
between the maximum and minimum radii of the conditioned
reference purposes shall be determined by a mutually accept-
ingot shall not exceed 20 % of the maximum radius. Lands,
able laboratory.
grooves, and local depressions shall be blended to a maximum
8.5 Product Check Analysis—Product check analysis is an
angle of 30° to the axis of the ingot. Each end of the ingot shall
analysis made by or for the purchaser for the purpose of
be chamfered or radiused. The minimum chamfer or radius
verifying the composition of the ingot. The check analysis
shall be ⁄2 in. [12 mm].
tolerances reflect the variation between laboratories in the
measurement of chemical composition. The permissible varia-
8. Chemical Requirements
tion in the product check analysis from the specified range is as
8.1 The ingot shall conform to the requirements for chemi-
prescribed
...