ASTM B983-21

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.
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Designation: B983 − 16 B983 − 21
Standard Specification for
Precipitation Hardened or Cold Worked, Seamless Nickel
Alloy Pipe and Tube
This standard is issued under the fixed designation B983; 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.
ε NOTE—Table 1 was editorially corrected in October 2017.
1. Scope*
1.1 This specification covers high strength, seamless pipe and tube of nickel alloys (UNS N07022, UNS N07725, UNS N07740,
UNS N09945, UNS N09925, UNS N07718, UNS N10276, UNS N06985) as shown in Table 1.
1.2 Pipe and tube shall be supplied in the cold worked or cold worked and precipitations hardened or solution annealed plus
precipitation hardened and descaled conditions. When atmosphere control is used, descaling is not necessary.
1.3 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.
1.4 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 Safety Data Sheet
(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental
practices, and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
B829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube
B899 Terminology Relating to Non-ferrous Metals and Alloys
E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Terminology
3.1 Terms shall be defined in accordance with Terminology B899.
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.
Current edition approved Oct. 1, 2016April 1, 2021. Published October 2016April 2021. Originally approved in 2012. Last previous edition approved in 20152016 as B983
ɛ1
– 15.16 . DOI: 10.1520/B0983-16E01.10.1520/B0983-21.
New designation established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
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
B983 − 21
TABLE 1 Chemical Requirements
UNS UNS UNS UNS UNS UNS UNS UNS
Element
N07022 N07725 N07740 N09945 N09925 N07718 N10276 N06985
Carbon 0.010 max 0.03 max 0.005-0.08 0.005-0.04 0.03 max 0.08 max 0.02 max 0.015 max
Manganese 0.5 max 0.35 max 1.0 max 1.0 max 1.00 max 0.35 max 1.0 max 1.0 max
Silicon 0.08 max 0.20 max 1.0 max 0.5 max 0.50 max 0.35 max 0.08 max 1.0 max
Phosphorous 0.025 max 0.015 max 0.030 max 0.03 max . 0.015 max 0.030 max 0.04 max
Sulfur 0.015 max 0.010 max 0.030 max 0.03 max 0.030 max 0.015 max 0.030 max 0.03 max
Chromium 20.0-21.4 19.0-22.5 23.5-25.5 19.5-23.0 19.5-23.5 17.0-21.0 14.5-16.5 21.0-23.5
Cobalt 1.0 max . 15.0-22.0 . . 1.0 max 2.5 max 5.0 max
Molybdenum 15.5-17.4 7.00-9.50 2.0 max 3.0-4.0 2.50-3.50 2.80-3.30 15.0-17.0 6.0-8.0
Columbium . 2.75-4.00 . 2.4-4.5 0.50 max 4.75-5.50 . .
Titanium . 1.00-1.70 0.5-2.5 0.5-2.5 1.90-2.40 0.65-1.15 . .
Aluminum 0.5 max 0.35 max 0.2-2.0 0.01-0.7 0.10-0.50 0.20-0.80† . .
Aluminum 0.5 max 0.35 max 0.2-2.0 0.01-0.7 0.10-0.50 0.20-0.80 . .
Zirconium . . . . . . . .
Boron 0.006 max . 0.0006–0.006 . . 0.006 max . .
B B A B
Iron 1.8 max Remainder 3.0 max Remainder 22.0 min Remainder 4.0-7.0 18.0-21.0
Copper 0.5 max . 0.50 max 1.5-3.0 1.50-3.00 0.30 max . 1.5-2.5
B B B B
Nickel Remainder 55.0–59.0 Remainder 45.0-55.0 38.0-46.0 50.0-55.0 Remainder Remainder
Tantalum 0.2 max . . . . . . .
Tungsten 0.8 max . . . . . 3.0-4.5 1.5 max
Columbium + . . 0.50–2.5 . . . . 0.50 max
Tantalum
Vanadium . . . . . . 0.35 max .
† Editorially corrected.
A
Minimum: The element may be determined arithmetically by difference.
B
Remainder: The element may be determined arithmetically by difference.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 average diameter, n—See Terminology B899.
3.2.2 pipe, n—See Terminology B899 and Specification B829.
3.2.3 tube, n—See Terminology B899.
4. General Requirements
4.1 Material furnished under this specification shall conform to the applicable requirements of Specification B829 unless otherwise
provided herein.
5. Ordering Information
5.1 It is the responsibility of the purchaser to specify all requirements that are necessary for the material ordered under this
specification. Examples of such requirements include, but are not limited to the following:
5.1.1 Alloy—See Table 1.
5.1.1.1 Heat Treatment or Cold Work or Type Type—(See Table 2 and Table 3.) .
5.1.2 Dimensions:
5.1.2.1 Tube—Outside diameter, minimum or average wall thickness, and length.
5.1.2.2 Pipe—Standard pipe size and schedule (Specification B829).
5.1.3 Ends—Plain ends cut and deburred will be furnished.
5.1.4 Certification—State if certification or a report of test results is required (Section 16).
5.1.5 Samples for Check Analysis—State whether samples for check analysis should be furnished.
B983 − 21
TABLE 2 Heat Treatments
Recommended Solution Recommended Precipitation
Alloy
Annealing Treatment Hardening Treatment
UNS N07022 Type 1A or 1B 1800–2100°F (982–1149°C), none
hold ⁄2 hr/in., 5 min. minimum,
rapid air cool or water quench
UNS N07022 Type 1A or 1B 1800–2100°F (982–1149°C), none
hold ⁄2 h/in., 5 min. minimum,
rapid air cool or water quench
UNS N07022 Type 2 1800–2100°F (982–1149°C), 1075–1150°F (579–621°C), hold 10 h,
hold ⁄2 hr/in., 5 min. minimum, air cool
rapid air cool or water quench
UNS N07022 Type 2 1800–2100°F (982–1149°C), 1075–1150°F (579–621°C), hold 10 h,
hold ⁄2 h/in., 5 min. minimum, air cool
rapid air cool or water quench
UNS N07725 Type 1 1900 ± 25°F (1040 ± 14°C), hold 1 h 1350 ± 25°F (730 ± 14°C), hold 8 h, furnace
per in. of thickness, water quench cool at 100°F (56°C) per min. to
or rapid air/gas cool 1150 ± 25°F (620 ± 14°C), hold for
8 h, air cool
UNS N07725 Type 2 1900 ± 25°F (1040 ± 14°C), hold 1 h 1350 ± 25°F (730 ± 14°C), hold 8 h, furnace
per in. of thickness, water quench cool at 100°F (56°C) per min. to
or rapid air/gas cool 1150 ± 25°F (620 ± 14°C), hold for
8 h, air cool
UNS N07740 2012°F (1100°C), 1400–1500°F (760–815°C), hold 4 h minimum
minimum, for up to 2 in. thickness + additional
hold 1 h per in. of thickness ⁄2 h per each additional
with ⁄2 h minimum, in. of thickness, air cool
hold, water quench or rapid
air cool
UNS N07740 2012–2192°F (1100–1200°C), 1400–1500°F (760–815°C), hold 4 h minimum
hold for up to 2 in. thickness + additional
1 1
⁄2 h/in., 5 min. minimum, ⁄2 h per each additional
water quench or rapid in. of thickness, air cool
air/gas cool
UNS N09945 Type 1 1850–1950°F (1010–1066°C) 1300–1350°F (704–732°C),
hold 0.5 to 4 h, water quench for 6 to 8 h, furnace cool at
50–100°F (26–56°C)/h to
1125–1175°F (607–635°C)
hold 6 to 8 h, air cool
UNS N09945 Type 2 1850–1950°F (1010–1066°C) 1300–1350°F (704–732°C),
hold 0.5 to 4 h, water quench for 6 to 8 h, furnace cool at
50–100°F (26–56°C)/h to
1125–1175°F (607–635°C)
hold 6 to 8 h, air cool
UNS N09925 Batch Anneal 1825–1875°F 1365–15°F (740–9°C) hold 6 to 9 h,
(996–1024°C) hold 0.5 to 4 h, furnace cool to 1150°F (621°C)
air cool or faster for total aging time of 18 min.,
air cool
UNS N07718 1875 ± 25°F (1024 ± 14°C) for 1425–1475°F (774–802°C) hold
1 to 2 h, water quench 6 to 8 h, air cool
UNS N10276 2050°F (1121°C) minimum for time none
commensurate with thickness
UNS N06985 2050°F (1121°C) minimum for time none
commensurate with thickness
5.1.6 Purchaser Inspection—If the purchaser wishes to witness tests or inspection of material at the place of manufacture, the
purchase order must so state, indicating which tests or inspections are to be witnessed (Section 15).
6. Chemical Composition
6.1 The material shall conform to the composition limits specified in Table 1.
B983 − 21
TABLE 3 Mechanical Properties
Elongation in
Tensile Strength, Yield Strength Hardness Rc
A
Alloy Condition 2 in., (50 mm)
min., ksi (MPa) min., ksi (MPa) max
B
or 4D , min, %
UNS N07022 Type 1A Solution Ann + cw 160
...