ASTM B752-06

Standard Specification for Castings, Zirconium-Base, Corrosion Resistant, for General Application

ABSTRACT
This specification covers zirconium and zirconium-alloy castings for general corrosion-resistant and industrial applications. Material for this specification shall be melted by conventional processes used for reactive metals. Typical methods include the consumable electrode and inductoslag melting processes. The material shall conform to the required chemical composition for zirconium, hafnium, iron, chromium, hydrogen, nitrogen, carbon, oxygen, phosphorus, tin, and niobium. Product analysis and heat treatment shall be performed on the material, and shall conform within the specified check analysis tolerances.
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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2006
• ICS: 77.150.10 - Aluminium products
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.02 - Zirconium and Hafnium

Relations

• Replaces: ASTM B752-01 - Standard Specification for Castings, Zirconium-Base, Corrosion Resistant, for General Application
• Effective Date: 01-Mar-2006
• Replaced By: ASTM B752-06(2011)e1 - Standard Specification for Castings, Zirconium-Base, Corrosion Resistant, for General Application
• Effective Date: 01-Apr-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B752 – 06
Standard Specification for
Castings, Zirconium-Base, Corrosion Resistant, for General
1
Application
This standard is issued under the fixed designation B752; 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 3. Terminology
1.1 Thisspecificationcoverszirconiumandzirconium-alloy 3.1 Definitions of Terms Specific to This Standard:
castings for general corrosion-resistant and industrial applica- 3.1.1 pour, n—shall consist of all material melted and cast
tions. at one time.
1.2 The values stated in inch-pound units are to be regarded 3.2 Lot Definitions:
as standard. The values given in parentheses are mathematical 3.2.1 castings, n—alotshallconsistofallcastingsproduced
conversions to SI units that are provided for information only from the same pour.
and are not considered standard.
4. Ordering Information
2. Referenced Documents
4.1 Orders for castings to this specification shall include the
2
2.1 ASTM Standards: following, as required to describe the requirements adequately.
A802/A802M Practice for Steel Castings, Surface Accep- 4.1.1 Description of the castings by pattern number or
tance Standards, Visual Examination drawing (dimensional tolerances shall be included on the
E8 Test Methods for Tension Testing of Metallic Materials casting drawing),
E10 Test Method for Brinell Hardness of Metallic Materials 4.1.2 Quantity,
E18 Test Methods for Rockwell Hardness of Metallic Ma- 4.1.3 Grade Designation (see Table 1),
terials 4.1.4 Options in the specification, and
E23 Test Methods for Notched Bar Impact Testing of 4.1.5 Supplementary requirements desired, including the
Metallic Materials standards of acceptance.
E94 Guide for Radiographic Examination
5. Materials and Manufacture
E142 Method for Controlling Quality of RadiographicTest-
3
ing 5.1 Material for this specification shall be melted by con-
ventional processes used for reactive metals. Typical methods
E165 PracticeforLiquidPenetrantExaminationforGeneral
Industry include the consumable electrode and inductoslag melting
processes.
E446 Reference Radiographs for Steel Castings Up to 2 in.
(50.8 mm) in Thickness
6. Chemical Composition
6.1 Pour Analysis—An analysis of each pour shall be made
by the producer from a sample such as a casting or test bar that
1
This specification is under the jurisdiction of ASTM Committee B10 on
is representative of the pour. The chemical composition deter-
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.02 on Zirconium and Hafnium.
mined shall conform to the requirements specified for the
Current edition approved March 1, 2006. Published March 2006. Originally
relevant grade in Table 1.
approved in 1985. Last previous edition approved in 2001 as B752 – 01. DOI:
6.1.1 The elements listed in Table 1 are intentional alloying
10.1520/B0752-06.
2
additions of elements which are inherent to the manufacture of
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
primaryzirconium,zirconiumsponge,millproductorcastings.
Standards volume information, refer to the standard’s Document Summary page on
6.1.1.1 Elements other than those listed in Table 1 are
the ASTM website.
3
deemed to be capable of occurring in the grades listed in Table
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org. 1 by and only by way of unregulated or unanalyzed scrap
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B752 – 06
A
TABLE 1 Chemical Requirements
7. Heat Treatment
Grade Designation,
7.1 Unless otherwise specified in the contract, all castings
Composition, %
willbesuppliedintheas-castconditionexceptwhenpost-weld
702C 704C 705C
heat treatment is required.
Zirconium and hafnium, 98.8 97.1 95.1
7.2 Ifpost-weldheattreatmentisrequired,itshallconsistof
min.
a stress relief performed at 1050 6 50°F (565 6 25°C) for a
Hafnium, max 4.5 4.5 4.5
1 1
Iron and chro- 0.3 0.3 0.3 minimum of ⁄2 h at temperature plus an additional ⁄2hat
mium, max
temperature per inch of thickness for section sizes greater than
Hydrogen, max 0.005 0.005 0.005
1 in. (25 mm). After heat treatment, the castings should be
Nitrogen, max 0.03 0.03 0.03
Carbon, max 0.1 0.1 0.1
cooled in air or in the furnace to ambient temperature unless
Oxygen, max 0.25 0.3 0.3
otherwise agreed upon between the purchaser and producer.
Phosphorus, max 0.01 0.01 0.01
Tin . 1
...