ASTM B472-04a

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Designation: B 472 – 04a
Standard Specification for
1
Nickel Alloy Billets and Bars for Reforging
This standard is issued under the fixed designation B 472; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3. Terminology
1.1 This specification covers UNS N06002, UNS N06030, 3.1 Definitions of Terms Specific to This Standard:
UNS N06035, UNS N06022, UNS N06200, UNS N06230, 3.1.1 billets and bars, n—terms billets and bars as used in
UNS N06600, UNS N06617, UNS N06625, UNS N08020, this specification shall be understood as billets and bars for
UNS N08026, UNS N08024, UNS N08120, UNS N08926, reforging.
UNS N08367, UNS N10242, UNS N10276, UNS N10665,
4. Ordering Information
UNS N10675, UNS N12160, UNS R20033, UNS N06059,
4.1 It is the responsibility of the purchaser to specify all
UNS N06686, UNS N10629, UNS N08031, UNS N06045,
UNS N06025, and UNS R30556* billets and bars for reforg- requirements that are necessary for material ordered under this
specification. Examples of such requirements include, but are
ing.
1.2 The values stated in inch-pound units are to be regarded not limited to, the following:
4.1.1 Quantity (weight or number of pieces),
as the standard. The values given in parentheses are for
information only. 4.1.2 Name of material or UNS number,
4.1.3 Form (bar or billet),
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.1.4 Dimensions,
4.1.5 ASTM designation and year of issue,
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate 4.1.6 Inspection (12.1),
4.1.7 Certification—State if certification or a report of test
Material Safety Data Sheet for this product/material as pro-
vided by the manufacturer, to establish appropriate safety and results is required (Section 14),
4.1.8 Supplementary requirements, if any, and
health practices, and determine the applicability of regulatory
limitations prior to use. 4.1.9 If possible, the intended end use.
NOTE 1—Atypical ordering description is as follows: 10 000 lb (4536
2. Referenced Documents
1
kg), UNS N08020, forging bar, 4 ⁄4 in. (107.95 mm) round, Specification
2
2.1 ASTM Standards:
B 472.
A 262 Practices for Detecting Susceptibility to Intergranu-
5. Materials and Manufacture
lar Attack in Austenitic Stainless Steels
B 880 SpecificationforGeneralRequirementsforChemical
5.1 Theproductsshallbehotworkedfromingotsbyrolling,
Check Analysis Limits for Nickel, Nickel Alloys and
forging, extruding, hammering, or pressing.
Cobalt Alloys
5.2 The products may be conditioned by chipping, grinding,
E 1473 Test Methods for Chemical Analysis of Nickel,
or machining to remove injurious surface defects provided the
Cobalt, and High-Temperature Alloys
depthofconditioningdoesnotexceedthatwhichwillaffectthe
surfaceconditionordimensionsofthearticletobeforgedfrom
the bar or billet.
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This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
6. Chemical Composition
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2004. Published October 2004. Originally
6.1 The material shall conform to the requirements as to
approved in 1968. Last previous edition approved in 2004 as B 472 - 04.
chemical composition prescribed in Table 1.
* New designation established in accordance withASTM E 527 and SAE J1086,
6.2 If a product (check) analysis is performed by the
Practice for Numbering Metals and Alloys (UNS).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
purchaser, the material shall conform to the requirements
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
specified in Table 1 subject to the permissible tolerances in
Standards volume information, refer to the standard’s Document Summary page on
Specification B 880.
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B 472 – 04a
TABLE 1 Chemical Requirements
Composition, %
Element
UNS N08026 UNS N08020 UNS N08024 UNS N08367 UNS N08926 UNS R20033
Carbon, max 0.03 0.07 0.03 0.030 0.020 0.015
Manganese, max 1.00 2.00 1.00 2.00 2.00 2.0
Phosphorus, max 0.03 0.045 0.035 0.040 0.03 0.02
Sulfur, max 0.03 0.035 0.035 0.030 0.01 0.01
Silic
...