ASTM B473-07(2013)

Standard Specification for UNS N08020, UNS N08024, and UNS N08026 Nickel Alloy Bar and Wire

ABSTRACT
This specification covers UNS N08020, UNS N08026, and UNS N08024 nickel alloy bar and wire. The alloys shall be furnished in the stabilized-annealed condition, solution-annealed condition, or annealed condition. The material shall conform to the requirements as to chemical composition prescribed. The material shall conform to the applicable requirements as to mechanical properties prescribed. Chemical analysis and tension test shall be made to conform to the requirements specified.
SCOPE
1.1 This specification2 covers UNS N08020, UNS N08026, and UNS N08024 bar and wire other than required for reforging.  
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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2013
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Relations

• Replaces: ASTM B473-07 - Standard Specification for UNS N08020, UNS N08024, and UNS N08026 Nickel Alloy Bar and Wire
• Effective Date: 01-Oct-2013
• Replaced By: ASTM B473-07(2018) - Standard Specification for UNS N08020, UNS N08024, and UNS N08026 Nickel Alloy Bar and Wire
• Effective Date: 01-Nov-2018
• Referred By: ASTM B462-18e1 - Standard Specification for Forged or Rolled Nickel Alloy Pipe Flanges, Forged Fittings, and Valves and Parts for Corrosive High-Temperature Service
• Effective Date: 01-Oct-2013
• Referred By: ASTM B366/B366M-23 - Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
• Effective Date: 01-Oct-2013
• Referred By: ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
• Effective Date: 01-Oct-2013
• Referred By: ASTM B475-07(2018) - Standard Specification for UNS N08020, UNS N08024, and UNS N08026 Nickel Alloy Round Weaving Wire
• Effective Date: 01-Oct-2013

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B473 −07 (Reapproved 2013)
Standard Specification for
UNS N08020, UNS N08024, and UNS N08026 Nickel Alloy
Bar and Wire
This standard is issued under the fixed designation B473; 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.
1. Scope 3.1.1 Thetermsbarandwireasusedinthisspecificationare
2 described as follows:
1.1 This specification covers UNS N08020, UNS N08026,
3.1.2 bars, n—hot-finished rounds, squares, octagons, and
and UNS N08024 bar and wire other than required for
hexagons: ⁄4 in. (6.35 mm) and over in diameter or size.
reforging.
1 1
Hot-finishedflats: ⁄4to10in.(254mm),inclusive,inwidth, ⁄8
1.2 The values stated in inch-pound units are to be regarded
in. (3.175 mm) and over in thickness. Cold-finished rounds,
as standard. The values given in parentheses are mathematical
squares,octagons,hexagons,andshapes:over ⁄2in.(12.7mm)
conversions to SI units that are provided for information only
in diameter or size. Cold-finished flats: ⁄8 in. (9.525 mm) and
and are not considered standard.
over in width (see Discussion (1)), ⁄8 in. and over in thickness
1.3 This standard does not purport to address all of the
(see Discussion (2)).
safety concerns, if any, associated with its use. It is the
3.1.2.1 Discussion—(1) Widths less than ⁄8 in. (9.525 mm)
responsibility of the user of this standard to become familiar
and thicknesses less than ⁄16 in. (4.75 mm) are generally
with all hazards including those identified in the appropriate
described as flat wire.
Material Safety Data Sheet (MSDS) for this product/material
3.1.2.2 Discussion—(2) Thicknesses ⁄8 in. (3.175 mm) to
as provided by the manufacturer, to establish appropriate
under ⁄16 in. (4.75 mm) can be cold-rolled strip as well as bar.
safety and health practices, and determine the applicability of
3.1.3 wire, n—cold finished only: round, square, octagon,
regulatory limitations prior to use.
hexagon, and shape wire, ⁄2 in. (12.7 mm) and under in
diameter or size. Cold-finished only: flat wire, ⁄16 in. (4.76
2. Referenced Documents
3 mm) to under ⁄8 in. (9.525 mm) in width, 0.010 in. (0.254 mm)
2.1 ASTM Standards:
to under ⁄16 in. in thickness.
A262 Practices for Detecting Susceptibility to Intergranular
Attack in Austenitic Stainless Steels
4. Ordering Information
B880 Specification for General Requirements for Chemical
Check Analysis Limits for Nickel, Nickel Alloys and
4.1 It is the responsibility of the purchaser to specify all
Cobalt Alloys
requirements that are necessary for the safe and satisfactory
E8 Test Methods for Tension Testing of Metallic Materials
performance of material ordered under this specification.
E1473 Test Methods for Chemical Analysis of Nickel,
Examples of such requirements include, but are not limited to,
Cobalt, and High-Temperature Alloys
the following:
4.1.1 Quantity (weight or number of pieces),
3. Terminology
4.1.2 Name of material or UNS number,
3.1 Definitions of Terms Specific to This Standard:
4.1.3 Form (bar or wire),
4.1.4 Dimensions,
4.1.5 Condition,
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.6 Finish,
B02.07 on Refined Nickel and Cobalt and Their Alloys.
4.1.7 ASTM designation and year of issue,
Current edition approved Oct. 1, 2013. Published October 2013. Originally
approved in 1968. Last previous edition approved in 2007 as B473 – 07. DOI: 4.1.8 Inspection (15.1),
10.1520/B0473-07R13.
4.1.9 Supplementary requirements, if any, and
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
4.1.10 If possible, the intended end use.
cation SB-473 in Section II of that Code.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
NOTE 1—A typical ordering description is as follows: 200 bars, UNS
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on N08020, 1 in. (25.4 mm) round by 10 to 14 ft (3.0 to 3.6 m), centerless
the ASTM website. ground, Specification B473.
*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
B473−07 (2013)
5. Materials and Manufacture 11. Sampling
5.1 Heat Treatment—The product of UNS N08020 alloy 11.1 Lot:
shall be furnished in the stabilized-annealed condition. The 11.1.1 A lot for chemical analysis shall consist of one heat.
product of UNS N08026 alloy shall be furnished in the 11.1.2 A lot for mechanical properties shall consist of all
solution-annealed condition. The product of UNS N08024 material from the same heat, nominal diameter or thickness, of
alloy shall be furnished in the annealed condition. each heat-treatment charge.
11.2 Test Material Selection:
NOTE 2—The recommended annealing temperatures all followed by
quenching in water or rapidly cooling by other means are as follows: 1700
11.2.1 Chemical Analysis—Representative samples shall be
to 1850°F (927 to 1010°C) for UNS N08020, 2050 to 2200°F (1121 to
taken during pouring or subsequent processing.
1204°C)forUNSN08026,and1925to1975°F(1052to1079°C)forUNS
11.2.1.1 Check analysis shall be wholly the responsibility of
N08024.
the purchaser.
11.2.2 Mechanical Properties—Samples of the material to
6. Chemical Composition
provide test specimens shall be taken from such locations in
6.1 The material shall conform to the requirements as to
each lot as to be representative of that lot.
chemical composition prescribed in Table 1.
6.2 If a product (check) analysis is performed by the
12. Number of Tests
purchaser, the material shall conform to the product (check)
12.1 Chemical Analysis—One test per lot.
analysis variations prescribed in Specification B880.
12.2 Mechanical Properties—One test per lot.
7. Condition
13. Specimen Preparation
7.1 Bars shall be furnished annealed and either hot finished
or cold finished. Strain-hardened material is available only as
13.1 Tensiontestspecimensshallbetakenfromthematerial
cold finished.
after final heat treatment, and shall be selected in the longitu-
dinal direction.The tension test specimens shall conform to the
7.2 Wire will be furnished only as annealed and cold
appropriate sections of Test Methods E8.
finished.
8. Mechanical Properties 14. Test Methods
14.1 The chemical composition and mechanical properties
8.1 The material shall conform to the applicable require-
ments as to mechanical properties prescribed in Table 2. of the material as enumerated in this specification shall, in case
of disagreement, be determined in accordance with the follow-
9. Dimensions and Permissible Variations
ing methods:
Test ASTM Designations
9.1 Bar—Bars shall conform to the variations in dimensions
A
Chemical analysis E1473
prescribed in Tables 3-11, inclusive, as applicable.
Tension E8
9.2 Wire—Wire shall conform to the permissible variations
A
Iron shall be determined arithmetically by difference.
in dimensions prescribed in Tables 12-16, inclusive, as appli-
cable.
15. Inspection
10. Workmanship, Finish, and Appearance
15.1 If specified, source inspection of the material by the
10.1 The product shall be uniform in quality and condition, purchaser at the manufacturer’s plant shall be made as agreed
smooth, commercially straight or flat, and free of injurious uponbetweenthepurchaserandthemanufactureraspartofthe
imperfections. purchase contract.
TABLE 1 Chemical Requirements
Composition, %
Element
UNS N08026 UNS N08020 UNS N08024
Carbon, max 0.03 0.07 0.03
Manganese, max 1.00 2.00 1.00
Phosphorus, max 0.03 0.045 0.035
Sulfur, max 0.03 0.035 0.035
Silicon, max 0.50 1.00 0.50
Nickel 33.00 to 37.20 32.00 to 38.00 35.00 to 40.00
Chromium 22.00 to 26.00 19.00 to 21.00 22.50 to 25.00
Molybdenum 5.00 to 6.70 2.00 to 3.00 3.50 to 5.00
Copper 2.00 to 4.00 3.00 to 4.00 0.50 to 1.50
Columbium (Nb) + tantalum . 8 × carbon–1.00 0.15 to 0.35
Nitrogen 0.10 to 0.16 . .
A A A
Iron remainder remainder remainder
A
By difference.
B473−07 (2013)
A
TABLE 2 Mechanical Property Requirements
Diameter or
Tensile Strength, min Yield Strength, min
Elongation in 2 in. Reduction of area,
Condition Thickness,
(50.8 mm), min, % min, %
ksi MPa ksi MPa
in. (mm)
B
Annealed, hot finished or cold All 80 551 35 241 30.0 50.0
finished
Annealed, strain-hardened Up to 2 (50.8) incl 90 620 60 415 15.0 40.0
A
For wire only, tensile strength 90 to 120.0 ksi (620 to 830 MPa); no requirements on yield strength, elongation, and reduction of area.
B
Cold-finished shapes require only 15 %, minimum, elongation.
TABLE 3 Permissible Variations in Size of Hot-Rolled Round and Square Bars
A
Permissible Variations from Specified Size, in. (mm) Out-of-Round or
B
Out-of-Square,
Over Under
in. (mm)
1 5 C,DE E E
⁄4 (6.35) to ⁄16 (7.94), incl
C,D
5 7
Over ⁄16 (7.94) to ⁄16 (11.11), incl 0.006 (0.15) 0.006 (0.15) 0.009 (0.23)
C,D
7 5
Over ⁄16 (11.11) to ⁄8 (15.88), incl 0.007 (0.18) 0.007 (0.18) 0.010 (0.25)
5 7
Over ⁄8 (15.88) to ⁄8 (22.22), incl 0.008 (0.20) 0.008 (0.20) 0.012 (0.30)
Over ⁄8 (22.22) to 1 (25.40), incl 0.009 (0.23) 0.009 (0.23) 0.013 (0.33)
Over 1 (25.40) to 1 ⁄8 (28.58), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)
1 1
Over 1 ⁄8 (28.58) to 1 ⁄4 (31.75), incl 0.011 (0.28) 0.011 (0.28) 0.016 (0.41)
1 3
Over 1 ⁄4 (31.75) to 1 ⁄8 (34.92), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)
3 1
Over 1 ⁄8 (34.92) to 1 ⁄2 (38.10), incl 0.014 (0.36) 0.014 (0.36) 0.021 (0.53)
1 1 1
Over 1 ⁄2 (38.10) to 2 (50.80), incl ⁄64 (0.40) ⁄64 (0.40) 0.023 (0.58)
1 1
Over 2 (50.80) to 2 ⁄2 (63.50), incl ⁄32 (0.79) 0 0.023 (0.58)
1 1 3
Over 2 ⁄2 (63.50) to 3 ⁄2 (88.90), incl ⁄64 (1.19) 0 0.035 (0.89)
1 1 1
Over 3 ⁄2 (88.90) to 4 ⁄2 (114.30), incl ⁄16 (1.59) 0 0.046 (1.17)
1 1 5
† Over 4 ⁄2 (114.30) to 5 ⁄2 (139.70), incl ⁄64 (1.98) 0 0.058 (1.47)
1 1 1
Over 5 ⁄2 (139.70) to 6 ⁄2 (165.10), incl ⁄8 (3.18) 0 0.070 (1.78)
1 5
Over 6 ⁄2 (165.10) to 8 (203.20), incl ⁄32 (3.97) 0 0.085 (2.18)
A
Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same cross section.
B
Out-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance between opposite faces.
C 1 5
Size tolerances have not been evolved for rounds in the size range of ⁄4 to ⁄16 in. (6.35 to 7.94 mm), inclusive. Size tolerances have not been evolved for round sections
1 5
in the size range of ⁄4 in. to approximately ⁄8 in. (6.35 to 15.88 mm) in diameter which are produced on rod mills in coils.
D
Variations in size of coiled product made on rod mills are greater than size tolerances for product made on bar mills.
E
Squares in this size are not produced as hot-rolled products.
† Editorially corrected.
TABLE 4 Permissible Variations in Size of Hot-Rolled Hexagonal and Octagonal Bars
Maximum Difference in
Permissible Variations from Specified Size, in. (mm)
Specified Sizes Measured
3 Measurements for
Between Opposite Sides,
Hexagons
in. (mm)
Over Under
only, in. (mm)
1 1
⁄4 (6.35) to ⁄2 (12.70), incl 0.007 (0.18) 0.007 (0.18) 0.011 (0.28)
Over ⁄2 (12.70) to 1 (25.40), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)
Over 1 (25.40) to 1 ⁄2 (38.10), incl 0.021 (0.53) 0.021 (0.53) 0.025 (0.64)
1 1 1 1
Over 1 ⁄2 (38.10) to 2 (50.80), incl ⁄32 (0.79) ⁄32 (0.79) ⁄32 (0.79)
1 3 3 3
Over 2 (50.80) to 2 ⁄2 (63.50), incl ⁄64 (1.19) ⁄64 (1.19) ⁄64 (1.19)
1 1 1 1 1
Over 2 ⁄2 (63.50) to 3 ⁄2 (88.90), incl ⁄16 (1.59) ⁄16 (1.59) ⁄16 (1.59)
16. Rejection and Rehearing 18. Product Marking
16.1 Material that fails to conform to the requirements of
18.1 Eachbundleorboxshallbeproperlytaggedwithmetal
thisspecificationmayberejected.Rejectionshouldbereported
tags showing heat number, grade, condition, specification
to the producer or supplier promptly and in writing. In case of
number and size to assure proper identification.
dissatisfaction with the results of the test, the producer or
supplier may make claim for a rehearing.
19. Packaging and Package Marking
17. Certification
19.1 Bars or wire shall be bundled or boxed in such a
17.1 When specified in the purchase order or contract, a
manner as to assure safe delivery to their destination when
producer’s or supplier’s certification shall be furnished to the properly transported by any common carrier.
purchaser that the material was manufactured, sampled, tested,
and inspected in accordance with this specification and has
20. Keywords
been found to meet the requirements. When specified in the
20.1 bar; UNS N08020; UNS N08024; UNS N08026; wire
purchase order or contract, a report of the test results shall be
furnished.
B473−07 (2013)
TABLE 5 Permissible Variations in Thickness and Width for Hot-Rolled Flat Bars
Permissible Variations in Thickness for Thicknesses Given, in. (mm)
1 1 1
Specified Width, in. (mm) ⁄8 (3.18) to ⁄2 (12.70), incl Over ⁄2 (12.70) to 1 (25.40), incl Over 1 (25.40) to 2 (50.80), incl
Over Under Over Under Over Under
To 1 (25.40), incl 0.008 (0.20) 0.008 (0.20) 0.010 (0.25) 0.010 (0.25) . .
Over 1 (25.40) to 2 (50.80), incl 0.012 (0.30) 0.012 (0.30) 0.015 (0.38) 0.015 (0.38) 0.031 (0.79) 0.031 (0.79)
Over 2 (50.80) to 4 (101.60), incl 0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)
Over 4 (101.60) to 6 (152.40), incl 0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)
Over 6 (152.40) to 8 (203.20), incl 0.016 (0.41) 0.016 (0.41) 0.025 (0.64) 0.025 (0.64) 0.031 (0.79) 0.031 (0.79)
Over 8 (203.20) to 10 (254.00), incl 0.021 (0.53) 0.021 (0.53) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79)
Over 2 (50.80) to 4 (101.60), incl Over 4 (101.60) to 6 (152.40), incl Over 6 (152.40) to 8 (203.20), incl
Over Under Over Under Over Under
To 1 (25.40), incl . . . . . .
Over 1 (25.40) to 2 (50.80), incl . . . . . .
Over 2 (50.80) to 4 (101.60), incl 0.062 (1.57) 0.031 (0.79) . . . .
Over 4 (101.60) to 6 (152.40), incl 0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) . .
Over 6 (152.40) to 8 (203.20), incl 0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) 0.125 (3.18) 0.156 (3.96)
Over 8 (203.20) to 10 (154.00), incl 0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) 0.125 (3.18) 0.156 (3.96)
Permissible Variations in Width, in. (mm)
Specified Width, in. (mm)
Over Under
To 1 (25.40), incl 0.015 (0.38) 0.015 (0.38)
Over 1 (25.40) t
...