ASTM B752-01
(Specification)Standard Specification for Castings, Zirconium-Base, Corrosion Resistant, for General Application
Standard Specification for Castings, Zirconium-Base, Corrosion Resistant, for General Application
SCOPE
1.1 This specification covers zirconium and zirconium-alloy castings for general corrosion-resistant and industrial applications.
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.
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Designation: B 752 – 01
Standard Specification for
Castings, Zirconium-Base, Corrosion Resistant, for General
1
Application
This standard is issued under the fixed designation B 752; 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 3.2 Lot Definitions:
3.2.1 castings—a lot shall consist of all castings produced
1.1 Thisspecificationcoverszirconiumandzirconium-alloy
from the same pour.
castings for general corrosion-resistant and industrial applica-
3.2.2 ingot—no definition required.
tions.
3.2.3 rounds, flats, tubes, and wrought powder metallurgical
1.2 The values stated in either inch-pound units or SI units
products (single definition, common to nuclear and non-
are to be regarded separately as standard. Within the text, the
nuclear standards)—a lot shall consist of a material of the
SI units are shown in brackets. The values stated in each
same size, shape, condition, and finish produced from the same
system are not exact equivalents; therefore, each system shall
ingot or powder blend by the same reduction schedule and the
be used independently of the other. Combining values from the
same heat treatment parameters. Unless otherwise agreed
two systems may result in nonconformance with the specifi-
between manufacturer and purchaser, a lot shall be limited to
cation.
the product of an 8 h period for final continuous anneal, or to
2. Referenced Documents
a single furnace load for final batch anneal.
3.2.4 sponge—a lot shall consist of a single blend produced
2.1 ASTM Standards:
at one time.
A 802/A 802M Practice for Steel Castings, Surface Accep-
2
3.2.5 weld fittings—definition is to be mutually agreed upon
tance Standards, Visual Examination
3
between manufacturer and the purchaser.
E 8 Test Methods forTensionTesting of Metallic Materials
E 10 Test Method for Brinell Hardness of Metallic Materi-
4. Ordering Information
3
als
4.1 Orders for castings to this specification shall include the
E 18 Test Methods for Rockwell Hardness and Rockwell
3
following, as required to describe the requirements adequately.
Superficial Hardness of Metallic Materials
4.1.1 Description of the castings by pattern number or
E 23 Test Methods for Notched Bar Impact Testing of
3
drawing (dimensional tolerances shall be included on the
Metallic Materials
4 casting drawing),
E 94 Guide for Radiographic Testing
4.1.2 Quantity,
E 142 Method for Controlling Quality of Radiographic
4 4.1.3 Grade Designation (see Table 1),
Testing
4
4.1.4 Options in the specification, and
E 165 Test Method for Liquid Penetrant Examination
4.1.5 Supplementary requirements desired, including the
E 446 Reference Radiographs for Steel Castings Up to 2 in.
4
standards of acceptance.
(51 mm) in Thickness
5. Materials and Manufacture
3. Terminology
5.1 Material for this specification shall be melted by con-
3.1 Definitions of Terms Specific to This Standard:
ventional processes used for reactive metals. Typical methods
3.1.1 pour—shall consist of all material melted and cast at
include the consumable electrode and inductoslag melting
one time.
processes.
1
This specification is under the jurisdiction of ASTM Committee B10 on 6. Chemical Composition
Reactive and Refractory Metals and Alloys and is the direct responsibility of
6.1 Pour Analysis—An analysis of each pour shall be made
Subcommittee B10.02 on Zirconium and Hafnium.
by the producer from a sample such as a casting or test bar that
Current edition approved Nov. 10, 2001. Published January 2002. Originally
published as B 752 – 85. Last previous edition B 752 – 97.
is representative of the pour. The chemical composition deter-
2
Annual Book of ASTM Standards, Vol 01.02.
mined shall conform to the requirements specified for the
3
Annual Book of ASTM Standards, Vol 03.01.
4 relevant grade in Table 1.
Annual Book of ASTM Standards, Vol 03.03.
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B 752
A
TABLE 1 Chemical Requirements
the tests in question.The results of the referee’s testing shall be
Grade Designation, used in determining conformance of the material to this
Composition, %
specification.
702C 704C 705C
Zirconium and hafnium, 98.8 97.1 95.1
7. Heat Treatment
min.
Hafnium, max 4.5 4.5 4.5
7.1 Unless otherwise specified in the contract, all castings
Iron and chro- 0.3 0.3 0.3
willbesuppliedintheas-castconditionexceptwhenpost-weld
mium, max
heat treatment is required.
Hydrogen, max 0.005 0.005 0.005
Nitrogen, max 0.03 0.03 0.03
7.2 If post-weld heat treatment is required, it shall
...
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