ASTM B472-04
(Specification)Standard Specification for Nickel Alloy Billets and Bars for Reforging
Standard Specification for Nickel Alloy Billets and Bars for Reforging
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, and UNS R30556* billets and bars for reforging.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
T1.3 his 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 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.
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Designation: B 472 – 04
Standard Specification for
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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.
1. Scope* 3.1.1 billets and bars, n—terms billets and bars as used in
this specification shall be understood as billets and bars for
1.1 This specification covers UNS N06002, UNS N06030,
reforging.
UNS N06035, UNS N06022, UNS N06200, UNS N06230,
UNS N06600, UNS N06617, UNS N06625, UNS N08020,
4. Ordering Information
UNS N08026, UNS N08024, UNS N08120, UNS N08926,
4.1 It is the responsibility of the purchaser to specify all
UNS N08367, UNS N10242, UNS N10276, UNS N10665,
requirements that are necessary for material ordered under this
UNS N10675, UNS N12160, UNS R20033, and UNS
specification. Examples of such requirements include, but are
R30556* billets and bars for reforging.
not limited to, the following:
1.2 The values stated in inch-pound units are to be regarded
4.1.1 Quantity (weight or number of pieces),
as the standard. The values given in parentheses are for
4.1.2 Name of material or UNS number,
information only.
4.1.3 Form (bar or billet),
1.3 This standard does not purport to address all of the
4.1.4 Dimensions,
safety concerns, if any, associated with its use. It is the
4.1.5 ASTM designation and year of issue,
responsibility of the user of this standard to become familiar
4.1.6 Inspection (12.1),
with all hazards including those identified in the appropriate
4.1.7 Certification—State if certification or a report of test
Material Safety Data Sheet for this product/material as pro-
results is required (Section 14),
vided by the manufacturer, to establish appropriate safety and
4.1.8 Supplementary requirements, if any, and
health practices, and determine the applicability of regulatory
4.1.9 If possible, the intended end use.
limitations prior to use.
NOTE 1—A typical ordering description is as follows: 10 000 lb (4536
2. Referenced Documents
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kg), UNS N08020, forging bar, 4 ⁄4 in. (107.95 mm) round, Specification
2
B 472.
2.1 ASTM Standards:
A 262 Practices for Detecting Susceptibility to Intergranu-
5. Materials and Manufacture
lar Attack in Austenitic Stainless Steels
5.1 The products shall be hot worked from ingots by rolling,
B 880 Specification for General Requirements for Chemical
forging, extruding, hammering, or pressing.
Check Analysis Limits for Nickel, Nickel Alloys and
5.2 The products may be conditioned by chipping, grinding,
Cobalt Alloys
or machining to remove injurious surface defects provided the
E 1473 Test Methods for Chemical Analysis of Nickel,
depth of conditioning does not exceed that which will affect the
Cobalt, and High-Temperature Alloys
surface condition or dimensions of the article to be forged from
3. Terminology
the bar or billet.
3.1 Definitions of Terms Specific to This Standard:
6. Chemical Composition
6.1 The material shall conform to the requirements as to
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This specification is under the jurisdiction of ASTM Committee B02 on
chemical composition prescribed in Table 1.
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
6.2 If a product (check) analysis is performed by the
B02.07 on Refined Nickel and Cobalt and Their Alloys.
purchaser, the material shall conform to the requirements
Current edition approved Feb. 1, 2004. Published February 2004. Originally
approved in 1968. Last previous edition approved in 2003 as B 472 - 03. specified in Table 1 subject to the permissible tolerances in
* New designation established in accordance with ASTM E 527 and SAE J1086,
Specification B 880.
Practice for Numbering Metals and Alloys (UNS).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM 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.
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B472–04
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
...
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