ASTM B737-05
(Specification)Standard Specification for Hot-Rolled and/or Cold-Finished Hafnium Rod and Wire
Standard Specification for Hot-Rolled and/or Cold-Finished Hafnium Rod and Wire
ABSTRACT
This specification covers hot-, cold-, or both hot- and cold-rolled hafnium rods and wires in either one of two grades. All grades should be in the recrystallization annealed condition unless specified otherwise. The materials should be made from ingots produced by vacuum melting in an electron beam or consumable arc furnaces, or both, of a type conventionally used for reactive metals. Samples for chemical composition tests should be taken from the top, middle, and bottom of the ingots. The requirements for mechanical properties do not apply to wires. Corrosion tests shall be done in water. All rods should be furnished in mechanically descaled and pickled, centerless ground and pickled, or centerless ground, pickled, and oxidized surface finish, while wires should be furnished in either conditioned and pickled or conditioned, pickled, and oxidized surface finish.
SCOPE
1.1 This specification covers hot- or cold-worked hafnium rod and wire, or both.
1.2 This specification contains two material grades, one specifically for nuclear applications (Grade R1) and one for commercial applications for alloying (Grade R3).
1.3 The products covered include the following:
1.3.1 Rod 3/8 to 1 in. (9.5 to 25 mm) in diameter.
1.3.2 Wire less than 3/8 in. (9.5 mm) in diameter.
1.4 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.
1.5 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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Standards Content (Sample)
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Designation: B737 – 05
Standard Specification for
1
Hot-Rolled and/or Cold-Finished Hafnium Rod and Wire
This standard is issued under the fixed designation B737; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 castings, n—alotshallconsistofallcastingsproduced
from the same pour.
1.1 This specification covers hot- or cold-worked hafnium
3.1.2 ingot, n—no definition required.
rod and wire, or both.
3.1.3 rounds, flats, tubes, and wrought powder metallurgical
1.2 This specification contains two material grades, one
products (single definition, common to nuclear and non-
specifically for nuclear applications (Grade R1) and one for
nuclear standards), n—a lot shall consist of a material of the
commercial applications for alloying (Grade R3).
samesize,shape,condition,andfinishproducedfromthesame
1.3 The products covered include the following:
ingot or powder blend by the same reduction schedule and the
3
1.3.1 Rod ⁄8 to 1 in. (9.5 to 25 mm) in diameter.
3 same heat treatment parameters. Unless otherwise agreed
1.3.2 Wire less than ⁄8 in. (9.5 mm) in diameter.
between manufacturer and purchaser, a lot shall be limited to
1.4 Unlessasingleunitisused,forexample,corrosionmass
2
the product of an 8 h period for final continuous anneal, or to
gain in mg/dm , the values stated in either inch-pound or SI
a single furnace load for final batch anneal.
units are to be regarded separately as standard. The values
3.1.4 sponge, n—a lot shall consist of a single blend
stated in each system are not exact equivalents; therefore, each
produced at one time.
system must be used independently of the other. SI values
3.1.5 weld fittings, n—definition is to be mutually agreed
cannot be mixed with inch-pound values.
upon between manufacturer and the purchaser.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Ordering Information
responsibility of the user of this standard to establish appro-
4.1 Purchase orders for material under this specification
priate safety and health practices and determine the applica-
shall include the following information as required to ad-
bility of regulatory limitations prior to use.
equately describe the desired material:
2. Referenced Documents 4.1.1 Quantity (weight or number of pieces),
2
4.1.2 Name of material,
2.1 ASTM Standards:
4.1.3 Form (rod, wire),
E8 Test Methods for Tension Testing of Metallic Materials
4.1.4 Finish (Section 12),
E21 Test Methods for Elevated Temperature Tension Tests
4.1.5 Applicable dimensions (diameter and length),
of Metallic Materials
4.1.6 Grade (Table 1),
E29 Practice for Using Significant Digits in Test Data to
4.1.7 ASTM designation and year of issue,
Determine Conformance with Specifications
4.1.8 Zirconium analysis requirements (Table 1), and
3. Terminology 4.1.9 Workmanship standards (Section 13).
3.1 Lot Definitions:
NOTE 1—A typical ordering description is as follows: 500 lb hafnium
rod,annealed;mechanicallydescaledandpickled;0.375in.diameterby6
in. minimum random lengths; Grade R1;ASTM Specification B737-01.
1
This specification is under the jurisdiction of ASTM Committee B10 on
4.2 In addition to the data specified in 4.1, the following
Reactive and Refractory Metals and Alloys and is the direct responsibility of
options and points of agreement between the manufacturer and
Subcommittee B10.02 on Zirconium and Hafnium.
the purchaser shall be specified on the purchase order if
Current edition approved May 1, 2005. Published June 2005. Originally
required:
approved in 1984. Last previous edition approved in 2001 as B737–01. DOI:
10.1520/B0737-05.
4.2.1 Mechanical test temperature (see 8.1),
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2.2 Straightness (Table 2),
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2.3 Special tests (Section 11),
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.2.4 Inspection (Section 16),
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B737 – 05
TABLE 1 Chemical Requirements
7. Chemical Composition
Composition, Weight %
7.1 The material shall conform to the requirements for
Alloying
chemical composition as prescribed in Table 1.
Nuclear Grade
Grade
Element
7.2 The manufacturer’s ingot analysis shall be considered
Grade R1 Grade R3
the chemical analysis for material produced to this specifica-
Aluminum 0.010 0.050
tion except for h
...
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