ASTM B550/B550M-02
(Specification)Standard Specification for Zirconium and Zirconium Alloy Bar and Wire
Standard Specification for Zirconium and Zirconium Alloy Bar and Wire
SCOPE
1.1 This specification covers three grades of zirconium and zirconium alloy bar and wire.
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 methods 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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Designation: B 550/B 550M – 02
Standard Specification for
1
Zirconium and Zirconium Alloy Bar and Wire
This standard is issued under the fixed designation B 550/B 550M; 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 nuclear standards)—a lot shall consist of a material of the
2 same size, shape, condition, and finish produced from the same
1.1 This specification covers three grades of zirconium and
ingot or powder blend by the same reduction schedule and the
zirconium alloy bar and wire.
same heat treatment parameters. Unless otherwise agreed
1.2 Unless a single unit is used, for example corrosion mass
2
between manufacturer and purchaser, a lot shall be limited to
gain in mg/dm , the values stated in either inch-pound or SI
the product of an 8 h period for final continuous anneal, or to
units are to be regarded separately as standard. The values
a single furnace load for final batch anneal.
stated in each system are not exact equivalents; therefore each
3.2.4 sponge—a lot shall consist of a single blend produced
system must be used independently of the other. SI values
at one time.
cannot be mixed with inch-pound values.
3.2.5 weld fittings—definition is to be mutually agreed upon
1.3 The following precautionary caveat pertains only to the
between manufacturer and the purchaser.
test methods portions of this specification. This standard does
not purport to address all of the safety concerns, if any,
4. Classification
associated with its use. It is the responsibility of the user of this
4.1 The bar or wire is to be furnished in three grades as
standard to establish appropriate safety and health practices
follows:
and determine the applicability of regulatory limitations prior
4.1.1 Grade R60702—Unalloyed zirconium.
to use.
4.1.2 Grade R60704—Zirconium-tin.
2. Referenced Documents 4.1.3 Grade R60705—Zirconium-niobium.
2.1 ASTM Standards:
5. Ordering Information
3
E8 Test Methods forTensionTesting of Metallic Materials
5.1 Orders for material under this specification should
E29 Practice for Using Significant Digits in Test Data to
4 include the following information:
Determine Conformance with Specifications
5.1.1 Quantity (weight or number of pieces),
3. Terminology 5.1.2 Name of material (zirconium bar or wire) (Table 1),
5.1.3 Grade number (see 4.1),
3.1 Definitions of Terms Specific to This Standard:
5.1.4 ASTM designation and year of issue, and
3.1.1 annealed—denotes material that exhibits a recrystal-
5.1.5 Additions to the specification and supplementary re-
lized grain structure.
quirements, if required.
3.2 Lot Definitions:
3.2.1 castings—a lot shall consist of all castings produced
NOTE 1—Atypical ordering description is as follows: 1000 lb (500 kg)
from the same pour. zirconium cold drawn bar, 0.35 in. (10 mm) in diameter by 10 ft (3 m) in
length, ASTM B 550 - 01, Grade R60702.
3.2.2 ingot—no definition required.
3.2.3 rounds, flats, tubes, and wrought powder metallurgical
6. Materials and Manufacture
products (single definition, common to nuclear and non-
6.1 Bar and wire covered by this specification shall be
formed with conventional fabrication methods and equipment
1
This specification is under the jurisdiction of ASTM Committee B10 on
found in primary ferrous and nonferrous metal plants.
Reactive and Refractory Metals and Alloys and is the direct responsibility of
6.2 Bar and wire will be supplied in the conditions pre-
Subcommittee B10.02 on Zirconium and Hafnium.
scribed in Table 2.
Current edition approved Oct. 10, 2002. Published December 2002. Originally
published as B 550 – 71. Last previous edition B 550/B 550M – 01.
6.3 The products covered include the sections and sizes
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
shown in Table 1.
cation SB-550 in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 03.01.
4
Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B 550/B 550M – 02
TABLE 1 Product Sections and Size
Product Section Size
1
Bars: Hot-finished round, squares, octagons, and hexagons ⁄4 in. (6.4 mm) and over in diameter or size
1 1
Hot-finished flats ⁄4 in. (6.4 mm) to 10 in. (250 mm), incl, in width, and ⁄8
in. (3.2 mm) and over in thickness
A
1
Cold-finished rounds, squares, octagons, hexagons, and Over ⁄2 in. (13 mm) in diameter or size
shapes
B
3 1
Cold-finished flats ⁄8 in. (9.5 mm) and over in width, and ⁄8 in. (3.2 mm)
C
and over in thickness
1
Wire: Cold-finished rounds, squa
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