ASTM B494/B494M-98

Standard Specification for Primary Zirconium

SCOPE
1.1 This specification covers primary zirconium metal commonly designated as sponge or chunklets, but may also take other forms. This specification does not include crystal bar zirconium.
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 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.

General Information

• Status: Historical
• Publication Date: 09-Nov-2001
• ICS: 77.120.99 - Other non-ferrous metals and their alloys
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.02 - Zirconium and Hafnium

Relations

• Replaced By: ASTM B494/B494M-01 - Standard Specification for Primary Zirconium
• Effective Date: 10-Nov-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 494/B 494M – 98
Standard Specification for
Primary Zirconium
This standard is issued under the fixed designation B 494/B 494M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5.1.2 Name of material (zirconium sponge or chunklet),
5.1.3 Grade number (see 3.1.1),
1.1 This specification covers primary zirconium metal com-
5.1.4 Method of manufacture (Section 6),
monly designated as sponge or chunklets, but may also take
5.1.5 ASTM designation and year of issue,
other forms. This specification does not include crystal bar
5.1.6 Additions to the specification and supplementary re-
zirconium.
quirements, if required,
1.2 Unless a single unit is used, for example corrosion mass
5.1.7 Mutually agreed upon marking requirements for the
bain in mg.dm , the values stated in either inch-pound or SI
containers, and
units are to be regarded seperatly as standard. The values stated
5.1.8 Oxygen limits, when needed.
in each system are not exact equivalents; therefore each system
must be used independently of the other. SI values cannot be
NOTE 1—A typical ordering description is as follows: 3000 lb (2000kg)
mixed with inch-pound values. zirconium sponge, ASTM B494, dated , Grade R60703.
1.3 The following precautionary caveat pertains only to the
6. Materials and Manufacture
test method portions of this specification. This standard does
not purport to address all of the safety concerns, if any, 6.1 Zirconium metal is usually prepared by reduction of
zirconium tetrachloride, and it gets its physical characteristics
associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety and health practices from the processes involved in production. These characteris-
tics may be expected to vary greatly with manufacturing
and determine the applicability of regulatory limitations prior
to use. methods. This specification, however, is not limited to metal
prepared by reduction of tetrachloride or to material of any
2. Referenced Documents
specific physical form.
2.1 ASTM Standards: 6.2 Only virgin zirconium metal, in identified, uniform,
E 29 Practice for Using Significant Digits in Test Data to well-mixed blends, shall be supplied under this specification.
Determine Conformance with Specifications
7. Chemical Composition
3. Terminology
7.1 The material shall conform to the requirements as to
3.1 Definitions of Terms Specific to This Standard: chemical composition prescribed in Table 1.
3.1.1 lot—a lot shall consist of a single blend produced at 7.2 When requested by the purchaser, a check analysis shall
one time. be performed for any elements listed in Table 1.
7.2.1 The manufacturer’s analysis shall be considered as
4. Classification
verified if the check analysis confirms the manufacturer’s
4.1 Primary zirconium is furnished in two grades: reported values within the tolerances prescribed in Table 2.
4.1.1 Grade R60702—Unalloyed zirconium.
Practice E 29 shall be used to establish significant digits.
4.1.2 Grade R60703—Unalloyed zirconium for metallurgi-
8. Sampling
cal alloying.
8.1 A lot shall consist of a single blend produced at one
5. Ordering Information
time.
5.1 Orders for material under this specification shall include
8.2 Sampling for Chemical Analysis:
the following information: 8.2.1 The following method shall be used for blends of 3000
5.1.1 Quantity (weight),
lb (1300 kg) or more. Smaller blends shall be sampled as
agreed upon between the manufacturer and the purchaser.
1 8.2.2 The method shall produce a representative sample
This specification is under the jurisdiction of ASTM Committee B-10 on
amounting to a minimum of 1 % of the quantity sampled. The
Reactive and Refractory Metals and Alloysand is the direct responsibility of
Subcommittee B10.02on Zirconium and Hafnium.
sample shall be prepared by running the full quantity through
Current edition approved Dec. 10, 1998. Published January 1999. Originally
a proportioner or splitter so arranged as to give the required
published as B 494 – 69. Last previous edition B 494 – 93.
amount of sample material. A minimum of 30 lb (14 kg) of this
Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
B 494/B 494M
TABLE 1 Chemical Requirements
samples shall be taken from a minimum of three equally spaced
Composition, % locations along the axial length of the ingot, as prescribed in
Element
9.1.1.
Grade R60702 Grade R60703
Zirconium + hafnium 99.2 min 98.0 min
11. Inspection
Hafnium 4.5 max 4.5 max
Iron + chromium 0.2 max .
11.1 The manufacturer shall inspect the material covered by
Hydrogen 0.005 max .
this specification prior to shipment and, on request, shall
Nitrogen 0.025 max .
furnish the purchaser with certificates of test. If so specified in
Carbon 0.05 max .
AA
Oxygen
the purchase order, the purchaser or his representative may
A
Limits as specified by the purchaser.
witness the testing and inspection of the material at the place of
manufacture. In such cases the purchaser shall state in his
TABLE 2 Permissible Variation in Check Analysis Between
purchase order which t
...