ASTM B625-04a
(Specification)Standard Specification for UNS N08904, UNS N08925, UNS N08031, UNS N08932, UNS N08926, and UNS R20033 Plate, Sheet, and Strip
Standard Specification for UNS N08904, UNS N08925, UNS N08031, UNS N08932, UNS N08926, and UNS R20033 Plate, Sheet, and Strip
SCOPE
1.1 This specification covers alloys UNS N08904, UNS N08925,* UNS N08031, UNS N08932, UNS N08926, and UNS R20033 plate, sheet, and strip in the annealed temper.
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.
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 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 625 – 04a
Standard Specification for
UNS N08904, UNS N08925, UNS N08031, UNS N08932,
UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet,
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and Strip
This standard is issued under the fixed designation B 625; 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.
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1. Scope 3.1.2 sheet, n—material under ⁄16 in. (4.76 mm) in thick-
ness and 24 in. (609.6 mm) and over in width. Material under
1.1 This specification covers alloys UNS N08904, UNS
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⁄16 in. (4.75 mm) in thickness and in all widths with No. 4
N08925,* UNS N08031, UNS N08932, UNS N08926, UNS
finish.
N08354, and UNS R20033 plate, sheet, and strip in the
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3.1.3 strip, n—material under ⁄16 in. (4.76 mm) in thickness
annealed temper.
and under 24 in. (609.6 mm) in width.
1.2 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
4. General Requirements
information only.
4.1 Material furnished in accordance with this specification
1.3 This standard does not purport to address all of the
shall conform to the applicable requirements of the current
safety concerns, if any, associated with its use. It is the
edition of Specification B 906 unless otherwise provided
responsibility of the user of this standard to become familiar
herein.
with all hazards including those identified in the appropriate
Material Safety Data Sheet for this product/material as pro-
5. Ordering Information
vided by the manufacturer, to establish appropriate safety and
5.1 Orders for material under this specification shall include
health practices, and determine the applicability of regulatory
the following information:
limitations prior to use.
5.1.1 Quantity (weight or number of pieces),
5.1.2 Alloy name or UNS number,
2. Referenced Documents
2 5.1.3 Form, plate, sheet or strip,
2.1 ASTM Standards:
5.1.4 Dimensions,
B 906 Specification for General Requirements for Flat-
5.1.5 Type edge required, for strip only (see Specification
Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
B 906),
3. Terminology 5.1.6 Finish (see Specification B 906)—For sheet with No.
4 finish, specify whether one or both sides are to be polished,
3.1 Definitions of Terms Specific to This Standard:
5.1.7 ASTM designation,
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3.1.1 plate, n—material ⁄16 in. (4.76 mm) and over in
5.1.8 Additions to the specification or special requirements,
thickness and over 10 in. (254 mm) in width.
5.1.9 Certification or test reports—State if certification or
test reports are required, and
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5.1.10 Source inspection—State if inspection is required.
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys. 6. Chemical Composition
Current edition approved Oct. 1, 2004. Published November 2004. Originally
6.1 The material shall conform to the composition limits
approved in 1977. Last previous edition approved in 2004 as B 625 – 04.
specified in Table 1. One test per lot is required as defined in
* New designation established in accordance with Practice E 527 and SAE
J1086, Practice for Numbering Metals and Alloys (UNS).
Specification B 906.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 If a product analysis is made by the purchaser, the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
material shall conform to the product (check) analysis varia-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tions in Specification B 906.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B 625 – 04a
TABLE 1 Chemical Requirements
Composition,%
Elements
UNS N08904 UNS N08925 UNS N08932 UNS N08354 UNS N08031 UNS N08926 UNS R20033
Carbon, max 0.020 0.020 0.020 0.030 0.015 0.020 0.015
Manganese, max 2.00 1.00 2.00 1.00 2.0 2.00 2.0
Phosphorus, max 0.045 0.045 0.025 0.030 0.020 0.03 0.02
Sulfur, max 0.035 0.030 0.010 0.010 0.010 0.01 0.01
Silicon, max 1.00 0.50 0.40 1.00 0.3 0.5 0.50
Nickel 23.00–28.00 24.00–26.00 24.0–26.0 34.0–36.0 30.0–32.0 24.00–26.00 30.0–33.0
Chromium 19.00–23.00 19.00–21.00 24.0–26.0 22.0–24.0 26.0–28.0 19.00–21.00 31.0–35.0
Molybdenum 4.0–5.0 6.0–7.0 4.5–6.5 7.0–8.0 6.0–7.0 6.0–7.0 0.50–2.0
Copper 1.0–2.0 0.8–1.5 1.0–2.0 . 1.0–1.4 0.5–1.5 0.30–1.20
Nitrogen . 0.10–0.20 0.15–0.25 0.17–0.24 0.15–0.25 0.15–0.25 0.35–0.60
Iron balance balance balance balance balance balance balance
TABLE 2 Mechani
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