ASTM B472-04a(2009)

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B472–04a Designation: B 472 – 04a (Reapproved 2009)
Standard Specification for
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 (´) 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*
1.1 This specification covers UNS N06002, UNS N06030, UNS N06035, UNS N06022, UNS N06200, UNS N06230, UNS
N06600, UNS N06617, UNS N06625, UNS N08020, UNS N08026, UNS N08024, UNS N08120, UNS N08926, UNS N08367,
UNS N10242, UNS N10276, UNS N10665, UNS N10675, UNS N12160, UNS R20033, UNS N06059, UNS N06686, UNS
N10629, UNS N08031, UNS N06045, UNS N06025, and UNS R30556* billets and bars for reforging.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 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 become familiar with all hazards including those identified in the appropriate Material Safety Data
Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and
determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
A 262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
B 880 SpecificationforGeneralRequirementsforChemicalCheckAnalysisLimitsforNickel,NickelAlloysandCobaltAlloys
E 1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 billets and bars, n—terms billets and bars as used in this specification shall be understood as billets and bars for reforging.
4. Ordering Information
4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this
specification. Examples of such requirements include, but are not limited to, the following:
4.1.1 Quantity (weight or number of pieces),
4.1.2 Name of material or UNS number,
4.1.3 Form (bar or billet),
4.1.4 Dimensions,
4.1.5 ASTM designation and year of issue,
4.1.6 Inspection (12.1),
4.1.7 Certification—State if certification or a report of test results is required (Section 14),
4.1.8 Supplementary requirements, if any, and
4.1.9 If possible, the intended end use.
NOTE 1—Atypical ordering description is as follows: 10 000 lb (4536 kg), UNS N08020, forging bar, 4 ⁄4 in. (107.95 mm) round, Specification B 472.
ThisspecificationisunderthejurisdictionofASTMCommitteeB02onNonferrousMetalsandAlloysandisthedirectresponsibilityofSubcommitteeB02.07onRefined
Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2004.2009. Published October 2004.2009. Originally approved in 1968. Last previous edition approved in 2004 as B 472 - 04a.
* New designation established in accordance with ASTM E 527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on 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.
B 472 – 04a (2009)
5. Materials and Manufacture
5.1 The products shall be hot worked from ingots by rolling, forging, extruding, hammering, or pressing.
5.2 The products may be conditioned by chipping, grinding, or machining to remove injurious surface defects provided the
depth of conditioning does not exceed that which will affect the surface condition or dimensions of the article to be forged from
the bar or billet.
6. Chemical Composition
6.1 The material shall conform to the requirements as to chemical composition prescribed in Table 1.
6.2 Ifaproduct(check)analysisisperformedbythepurchaser,thematerialshallconformtotherequirementsspecifiedinTable
1 subject to the permissible tolerances in Specification B880.B 880.
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
Silicon, max 0.50 1.00 0.50 1.00 0.50 0.50
Nickel 33.00–37.20 32.00–38.00 35.00–40.00 23.50–25.50 24.00–26.00 30.0–33.0
Chromium 22.00–26.00 19.00–21.00 22.50–25.00 20.00–22.00 19.00–21.00 31.0–35.0
Molybdenum 5.00–6.70 2.00–3.00 3.50–5.00 6.00–7.00 6.0–7.0 0.50–2.0
Copper 2.00–4.00 3.00–4.00 0.50–1.50 0.75 max 0.5–1.5 0.30–1.20
Columbium (Nb) + . 8 3 carbon–1.00 0.15–0.35 . . .
tantalum
Nitrogen 0.10–0.16 . . 0.18–0.25 0.15–0.25 0.35–0.60
A
Iron remainder remainder remainder remainder balance balance
Composition, %
Element
UNS UNS UNS UNS UNS UNS UNS UNS
N06030 N06022 N06200 N10276 N10665 N10675 N06002 N06230
Carbon, max 0.03 0.015 0.010 0.010 0.02 0.01 0.05-0.15 0.05-0.15
Manganese, max 1.5 0.50 0.50 1.0 1.0 3.0 1.00 0.30-1.00
Phosphorous, max 0.04 0.02 0.025 0.04 0.04 0.030 0.04 0.030
Sulfur, max 0.02 0.02 0.010 0.03 0.03 0.010 0.03 0.015
Silicon, max 0.8 0.08 0.08 0.08 0.10 0.10 1.00 0.25-0.75
A A
Nickel remainder remainder remainder remainder remainder 65.0 min remainder remainder
Chromium 28.0-31.5 20.0-22.5 22.0-24.0 14.5-16.5 1.0 max 1.0-3.0 20.5-23.0 20.0-24.0
Molybdenum 4.0-6.0 12.5-14.5 15.0-17.0 15.0-17.0 26.0-30.0 27.0-32.0 8.0-10.0 1.0-3.00
Copper 1.0-2.4 . 1.3-1.9 . . 0.20 . .
Columbium 0.30-1.50 . . . . . . .
(Nb) + tantalum
Iron 13.0-17.0 2.0-6.0 3.0 max 4.0-7.0 2.0 max 1.0-3.0 17.0-20.0 3.0 max
Cobalt, max 5.0 2.5 2.0 2.5 1.0 3.0 0.5-2.5 5.0
Tungsten 1.5-4.0 2.5-3.5 . 3.0-4.5 . 3.0 max 0.2-1.0 13.0-15.0
Vanadium, max . 0.35 . 0.35 . 0.20 . .
Titanium, max . . . . . 0.2 . .
Zirconium, max . . . . . 0.10 . .
Columbium (Nb) . . . . . 0.20 max . .
Tantalum . . . . . 0.20 max
Nickel + . . . . . 94.0-98.0 . .
Molybdenum
Aluminum, max . . 0.50 . . 0.50 . 0.20-0.50
Lanthanum . . . . . . . 0.005-0.050
Boron . . . . . . . 0.015 max
Composition, %
Element
UNS UNS UNS UNS UNS UNS UNS UNS
N12160 R30556 N06625 N06600 N10242 N08120 N06617 N06035
Carbon 0.15 max 0.05-0.15 0.10 max 0.15 max 0.03 0.02-0.10 0.05-0.15 0.050 max
Manganese 1.5 max 0.50-2.00 0.50 max 1.0 max 0.80 max 1.5 max 1.0 max 0.50 max
Phosphorous 0.030 max 0.04 max 0.015 max . 0.030 max 0.040 max . 0.030 max
Sulfur 0.015 max 0.015 max 0.015 max 0.015 max 0.015 max 0.03 max 0.015 max 0.015 max
Silicon 2.4-3.0 0.20-0.80 0.50 max 0.50 max 0.80 max 1.0 max 1.0 max 0.60 max
A A A A A A
Nickel remainder 19.0-22.5 58.0 min 72.0 min remainder 35.0-39.0 44.5 min remainder
Chromium 26.0-30.0 21.0-23.0 20.0-23.0 14.0-17.0 7.0-9.0 23.0-27.0 20.0-24.0 32.25-34.25
Molybdenum 1.0 max 2.5-4.0 8.0-10.0 . 24.0-26.0 2.50 max 8.0-10.0 7.60-9.00
Copper . . . 0.5 max . 0.50 max 0.5 max 0.30 max
Columbium . . 3.15-4.15 . . 0.4-0.9 . .
(Nb) + tantalum
Nitrogen . 0.10-0.30 . . . 0.15-0.30 . .
B 472 – 0
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