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.

Designation: B574 − 17

Standard Specification for

Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon
Nickel-Molybdenum-Chromium, Low-Carbon Nickel-
Molybdenum-Chromium-Tantalum, Low-Carbon Nickel-
Chromium-Molybdenum-Copper, and Low-Carbon Nickel-
Chromium-Molybdenum-Tungsten Alloy Rod1
This standard is issued under the fixed designation B574; 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 U.S. Department of Defense.

1. Scope* responsibility of the user of this standard to become familiar

2
1.1 This specification covers rod of low-carbon nickel- with all hazards including those identified in the appropriate
chromium-molybdenum alloys (UNS N10276, N06022, Safety Data Sheet (SDS) for this product/material as provided
N06035, N06044, N06455, N06058, and N06059), low-carbon by the manufacturer, to establish appropriate safety and health
nickel-molybdenum-chromium (USN N10362), low-carbon practices, and determine the applicability of regulatory limi-
nickel-molybdenum-chromium-tantalum (UNS N06210), low- tations prior to use.
carbon nickel-chromium-molybdenum-copper alloy (UNS 1.5 This international standard was developed in accor-
N06200), and low-carbon nickel-chromium-molybdenum- dance with internationally recognized principles on standard-
tungsten (UNS N06686) as shown in Table 1, for use in general ization established in the Decision on Principles for the
corrosive service. Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.2 The following products are covered under this specifi- Barriers to Trade (TBT) Committee.
cation:
1.2.1 Rods 5⁄16 to 3⁄4 in. (7.94 to 19.05 mm), exclusive, in 2. Referenced Documents
diameter, hot or cold finished, solution annealed and pickled, or
2.1 ASTM Standards:3
mechanically descaled.
B880 Specification for General Requirements for Chemical
1.2.2 Rods 3⁄4 to 31⁄2 in. (19.05 to 88.9 mm), inclusive, in
Check Analysis Limits for Nickel, Nickel Alloys and
diameter, hot or cold finished, solution annealed, ground or
Cobalt Alloys
turned.
E8 Test Methods for Tension Testing of Metallic Materials
1.2.3 Rods 1⁄4 to 3 1⁄2 in. (6.35 to 88.9 mm), inclusive, in
E29 Practice for Using Significant Digits in Test Data to
diameter, solution annealed, cold finished, as cold finished,
Determine Conformance with Specifications
ground or turned (N06059 and N06686 only, see Table 2 and
E55 Practice for Sampling Wrought Nonferrous Metals and
Table 3).
Alloys for Determination of Chemical Composition
1.3 The values stated in inch-pound units are to be regarded E527 Practice for Numbering Metals and Alloys in the
as standard. The values given in parentheses are mathematical Unified Numbering System (UNS)
conversions to SI units that are provided for information only E1473 Test Methods for Chemical Analysis of Nickel, Co-
and are not considered standard. balt and High-Temperature Alloys
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1
3.1.1 rod, n—a product of round solid section furnished in
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
straight lengths.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved June 1, 2017. Published June 1, 2017. Originally
3
approved in 1972. Last previous edition approved in 2015 as B574 – 15. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/B0574-17. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SB-574 in Section II of that Code. 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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 TABLE 1 Chemical Requirements
Composition Limits, %
Element Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy
N06035 N06044 N10276 N06022 N06455 N06059 N06058 N06200 N10362 N06210 N06686
Molybdenum 7.60–9.00 0.80-1.20 15.0–17.0 12.5–14.5 14.0–17.0 15.0–16.5 18.5–21.0 15.0–17.0 21.5-23.0 18.0–20.0 15.0-17.0
Chromium 32.25–34.25 43.5-45.3 14.5–16.5 20.0–22.5 14.0–18.0 22.0–24.0 20.0- 23.0 22.0–24.0 13.8-15.6 18.0–20.0 19.0-23.0
Iron 2.00 max 0.3 max 4.0–7.0 2.0–6.0 3.0 max 1.5, max 1.5, max 3.0 max 1.25 max 1.0 max 5.0 max
Tungsten 0.60 max ... 3.0–4.5 2.5–3.5 ... ... 0.3 max ... ... ... 3.0-4.4
Cobalt, max 1.00 ... 2.5 2.5 2.0 0.3 0.3 max 2.0 max ... 1.0 ...
Carbon, max 0.050 0.02 0.010 0.015 0.015 0.010 0.010 0.010 0.010 0.015 0.010
Silicon, max 0.60 0.20 0.08 0.08 0.08 0.10 0.10 0.08 0.08 0.08 0.08

2
Manganese, max 0.50 0.07-0.30 1.0 0.50 1.0 0.5 0.5 0.5 0.60 0.5 0.75
Vanadium, max 0.20 ... 0.35 0.35 ... ... ... ... ... 0.35 ...
Phosphorus, max 0.030 0.020 0.04 0.02 0.04 0.015 0.015 0.025 0.025 0.02 0.04
Sulfur, max 0.015 0.020 0.03 0.02 0.03 0.010 0.010 0.010 0.010 0.02 0.02
B574 − 17

Titanium ... 0.10-0.30 ... ... 0.7 max ... ... ... ... ... 0.02-0.25
Nickel remainderA Bal remainderA remainderA remainderA Bal Bal remainderA remainderA remainderA remainderA
Aluminum 0.40 max 0.30 max ... ... ... 0.1–0.4 0.40 max 0.50 max 0.50 max ... ...
Copper 0.30 max ... ... ... ... 0.50 max 0.50 max 1.3–1.9 ... ... ...
Tantalum ... ... ... ... ... ... ... ... ... 1.5–2.2 ...
Nitrogen ... ... ... ... ... ... 0.02–0.15 ... ... ... ...
A
See 12.1.1.
 B574 − 17
TABLE 2 Permissible Variations in Diameter and Out-of-Roundness of As Cold Finished Rods
Permissible Variations, in. (mm)
Specified Diameter, in. (mm) Diameter
Out of Roundness, max
+ −
⁄ –7⁄16 (6.35–11.11), incl
14 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)
Over 7⁄16 –5⁄8 (11.11–15.87), incl 0.014 (0.36) 0.014 (0.36) 0.020 (0.51)
Over 5⁄8 –3⁄4 (15.87–19.05), excl 0.016 (0.41) 0.016 (0.41) 0.024 (0.61)
3⁄4 –31⁄2 (19.05–88.9), incl 0.010 (0.25) 0.010 (0.25) 0.010 (0.25)

TABLE 3 Mechanical Property Requirements for As Cold Finished Rods

Elongation in 2 in.
Yield Strength (0.2 % Offset), min, psi
Alloy Grade Tensile Strength, min, psi (MPa) (50.8 mm) or 4DA
(MPa) min, %
N06059 1 120 (827) 85 (586) 20
2 135 (931) 125 (862) 20
3 160 (1103) 150 (1034) 15
N06686 1 120 (827) 85 (586) 20
2 135 (931) 125 (862) 20
3 160 (1103) 150 (1034) 20
A
D refers to the diameter of the tension specimen.

TABLE 4 Permissible Variations in Diameter and Out-of-Roundness of Hot or Cold Finished, Solution Annealed Rods
Permissible Variations, in. (mm)
Specified Diameter, in. (mm) Diameter
Out of Roundness, max
+ −
5⁄16 Hot-Finished, Annealed, and Descaled Rods

5⁄16 –7⁄16 (7.94–11.11), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)
Over 7⁄16 –5⁄8 (11.11–15.87), incl 0.014 (0.36) 0.014 (0.36) 0.020 (0.51)
Over 5⁄8 –3⁄4 (15.87–19.05), excl 0.016 (0.41) 0.016 (0.41) 0.024 (0.61)
Hot-Finished, Annealed, and Ground or Turned Rods
⁄ –31⁄2 (19.05–88.9), incl
34 0.010 (0.25) 0 0.008 (0.20)

TABLE 5 Mechanical Property Requirements for Hot or Cold Finished, Solution Annealed Rods
Elongation in 2 in.
Yield Strength (0.2 % Offset), min, psi
Alloy Tensile Strength, min, psi (MPa) (50.8 mm) or 4DA
(MPa) min, %
N10276 100 000 (690) 41 000 (283) 40
N06022 100 000 (690) 45 000 (310) 45
N06035 85 000 (586) 35 000 (241) 30
N06044 100 000 (690) 45 000 (310) 30
N06455 100 000 (690) 40 000 (276) 40
N06058 110 000 (760) 52 000 (360) 40
N06059 100 000 (690) 45 000 (310) 45
N06200 100 000 (690) 45 000 (310) 45
N10362 105 000 (725) 45 000 (310) 40
N06686 100 000 (690) 45 000 (310) 45
N06210 100 000 (690) 45 000 (310) 45
A
D refers to the diameter of the tension specimen.

4. Ordering Information 4.1.5 Samples for Product (Check) Analysis—State whether

4.1 It is the responsibility of the purchaser to specify all samples should be furnished (9.2.2).
requirements that are necessary for material ordered under this
specification. Examples of such requirements include, but are 5. Chemical Composition
not limited to the following: 5.1 The material shall conform to the composition limits
4.1.1 Alloy—Table 1. specified in Table 1.
4.1.2 Dimensions—Nominal diameter and length. The
shortest usable multiple length should be specified (Table 4). 5.2 If a product (check) analysis is made by the purchaser,
4.1.3 Certification—State if certification or a report of test the material shall conform to the product (check) analysis
results is required (Section 15). variations per Specification B880.
4.1.4 Purchaser Inspection—State which tests or inspec-
tions are to be witnessed (Section 13).

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 B574 − 17
6. Mechanical Properties and Other Requirements 7.7 Straightness—The maximum curvature (depth of chord)
6.1 The mechanical properties of the material at room shall not exceed 0.050 in. multiplied by the length of the chord
temperature shall conform to those shown in Table 3 and Table in feet (0.04 mm multiplied by the length in centimetres).
5.
8. Workmanship, Finish, and Appearance
7. Dimensions and Permissible Variations 8.1 The material shall be uniform in quality and condition,
7.1 Diameter—The permissible variations from the speci- smooth, and free of injurious imperfections.
fied diameter shall be as prescribed in Table 2 and Table 4.
7.2 Out of Roundness—The permissible variation in round- 9. Sampling
ness shall be as prescribed in Table 2 and Table 4. 9.1 Lots for Chemical Analysis and Mechanical Testing:
7.3 Machining Allowances—When the surfaces of finished 9.1.1 A lot for chemical analysis shall consist of one heat.
material are to be machined, the following allowances are 9.1.2 A lot of bar for mechanical testing shall be defined as
suggested for normal machining operations. the material from one heat in the same condition and specified
7.3.1 As-finished (Annealed and Descaled)—For diameters diameter.
of 5⁄16 to 11⁄16 in. (7.94 to 17.46 mm) inclusive, an allowance of 9.2 Sampling for Chemical Analysis:
1⁄16 in. (1.59 mm) on the diameter should be made for finish
9.2.1 A representative sample shall be obtained from each
machining. heat during pouring or subsequent processing.
7.4 Length: 9.2.2 Product (check) analysis shall be wholly the respon-
7.4.1 Unless multiple, nominal, or cut lengths are specified, sibility of the purchaser.
random mill lengths shall be furnished. 9.3 Sampling for Mechanical Testing—A representative
7.4.2 The permissible variations in length of multiple, sample shall be taken from each lot of finished material.
nominal, or cut length rod shall be as prescribed in Table 6.
Where rods are ordered in multiple lengths, a 1⁄4-in. (6.35-mm) 10. Number of Tests and Retests
length addition shall be allowed for each uncut multiple length.
10.1 Chemical Analysis—One test per heat.
7.5 Ends:
7.5.1 Rods ordered to random or nominal lengths shall be 10.2 Tension Tests—One test per lot.
furnished with either cropped or sawed ends. 10.3 Retests—If the specimen used in the mechanical test of
7.5.2 Rods ordered to cut lengths shall be furnished with any lot fails to meet the specified requirements, two additional
square sawcut or machined ends. specimens shall be taken from different sample pieces and
7.6 Weight—For calculations of mass or weight, the follow- tested. The results of the tests on both of these specimens shall
ing densities shall be used: meet the specified requirements.
Alloy Density
lb/in.3 g/cm3 11. Specimen Preparation
N10276 0.321 8.87
N06022 0.314 8.69 11.1 Tension test specimens shall be taken from material
N06035 0.296 8.18 after final heat-treatment and tested in the direction of fabri-
N06044 0.287 7.97 cation.
N06455 0.312 8.64
N06058 0.318 8.80 11.2 Tension test specimens shall be any of the standard or
N06059 0.311 8.60
N06200 0.307 8.50
subsized specimens shown in Test Methods E8.
N10362 0.319 8.83
N06686 0.315 8.73
11.3 In the event of disagreement, the referee specimen
N06210 0.316 8.76 shall be the largest possible round specimen shown in Test
Methods E8.

TABLE 6 Permissible Variations in Length of Rods 12. Test Methods

Random mill lengths 2 to 12 ft (610 to 3660 mm) long with not more 12.1 The chemical composition and mechanical properties
than 25 weight % under 4 ft (1.22 m). of the material as enumerated in this specification shall be
Multiple lengths Furnished in multiples of a specified unit length, within
the length limits indicated above. For determined, in case of disagreement, in accordance with the
each multiple, an allowance of 1⁄4 in. (6.35 following ASTM methods:
mm) shall be made for cutting, unless 12.1.1 Chemical Analysis—Test Methods E1473, For ele-
otherwise specified. At the manufacturer’s
option, individual specified unit lengths may be ments not covered by Test Methods E1473, the referee method
furnished. shall be as agreed upon between the manufacturer and the
Nominal lengths Specified nominal lengths having a range of not
less than 2 ft (610 mm) with no short lengths
purchaser. The nickel composition shall be determined arith-
allowed. metically by difference.
Cut lengths A specified length to which all rods shall be cut 12.1.2 Tension Test—Test Methods E8.
with a permissible variation of ±1⁄8 in. (3.17
mm) − 0. 12.1.3 Method of Sampling—Practice E55.
12.1.4 Determining Significant Places—Practice E29.

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 B574 − 17
12.2 For purposes of determining compliance with the stating that material has been manufactured, tested, and in-
limits in this specification, an observed value or a calculated spected in accordance with this specification, and that the test
value shall be rounded in accordance with the rounding method results on representative samples meet specification require-
of Practice E29: ments. When specified in the purchase order or contract, a
Requirements Rounded Unit for Observed or report of the test results shall be furnished.
Calculated Value

Chemical composition and nearest unit in the last right-hand place of 16. Product Marking
tolerances figures of the specified limit
Tensile strength and yield nearest 1000 psi (7 MPa) 16.1 Each piece of material 1⁄2 in. (12.7 mm) and over in
strength diameter shall be marked with the specification number, alloy,
Elongation nearest 1 %
heat number, manufacturer’s identification, and size. The
13. Inspection markings shall have no deleterious effect on the material or its
13.1 Inspection of the material shall be made as agreed upon performance and shall be sufficiently stable to withstand
by the manufacturer and the purchaser as part of the purchase normal handling.
contract. 16.2 Each bundle or shipping container shall be marked
14. Rejection and Rehearing with the name of the material; this specification number; alloy;
the size; gross, tare and net weight; consignor and consignee
14.1 Material that fails to conform to the requirements of
address; contract or order number; and such other information
this specification may be rejected. Rejection should be reported
to the producer or supplier promptly and in writing. In case of as may be defined in the contract or order.
dissatisfaction with the results of the test, the producer or
supplier may make claim for a rehearing. 17. Keywords
17.1 N06022; N06035; N06044; N06058; N06059;
15. Certification
N06200; N06210; N06455; N06686; N10276; N10362; rod
15.1 When specified in the purchase order or contract, a
manufacturer’s certification shall be furnished to the purchaser

APPENDIX

(Nonmandatory Information)

X1. HEAT TREATMENT

X1.1 Proper heat treatment during or subsequent to fabrica-

tion is necessary for optimum performance and the manufac-
turer shall be consulted for details.

SUMMARY OF CHANGES

Committee B02 has identified the location of selected changes to this standard since the last issue (B574–15)
that may impact the use of this standard. (Approved June 1, 2017.)

(1) New Low-Carbon Ni-Cr-Mo alloy added to Scope. (4) New Low-Carbon Ni-Cr-Mo alloy added to paragraph 7.6.
(2) New Low-Carbon Ni-Cr-Mo alloy added Table 1. (5) New Low-Carbon Ni-Cr-Mo alloy added to Keywords.
(3) New Low-Carbon Ni-Cr-Mo alloy added Table 5.

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 B574 − 17
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