ASTM B335-03(2018)

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:B335 −03(Reapproved 2018)
Standard Specification for
Nickel-Molybdenum Alloy Rod
This standard is issued under the fixed designation B335; 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 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers rod of nickel-molybdenum
B880 Specification for General Requirements for Chemical
alloys (UNS N10001, N10665, N10675, N10629, and
Check Analysis Limits for Nickel, Nickel Alloys and
N10624) as shown in Table 1, for use in general corrosive
Cobalt Alloys
service.
E8/E8M Test Methods for Tension Testing of Metallic Ma-
1.2 The following products are covered under this specifi-
terials
cation:
E29 Practice for Using Significant Digits in Test Data to
5 3
1.2.1 Rods ⁄16 to ⁄4 in. (7.94 to 19.05 mm) excl in diameter,
Determine Conformance with Specifications
hot or cold finished, solution annealed and pickled or mechani- E55 Practice for Sampling Wrought Nonferrous Metals and
cally descaled.
Alloys for Determination of Chemical Composition
3 1
E1473 Test Methods for Chemical Analysis of Nickel, Co-
1.2.2 Rods ⁄4 to 3 ⁄2 in. (19.05 to 88.9 mm) incl in diameter,
balt and High-Temperature Alloys
hot or cold finished, solution annealed, ground or turned.
1.3 The values stated in inch-pound units are to be regarded
3. Terminology
as standard. The values given in parentheses are mathematical
3.1 Definitions of Terms Specific to This Standard:
conversions to SI units that are provided for information only
3.1.1 rod, n—a product of round solid section furnished in
and are not considered standard.
straight lengths.
1.4 This standard does not purport to address all of the
4. Ordering Information
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar
4.1 It is the responsibility of the purchaser to specify all
with all hazards including those identified in the appropriate
requirements that are necessary for material ordered under this
Safety Data Sheet (SDS) for this product/material as provided
specification. Examples of such requirements include, but are
by the manufacturer, to establish appropriate safety, health,
not limited to the following:
and environmental practices, and determine the applicability
4.1.1 Alloy—Table 1.
of regulatory limitations prior to use.
4.1.2 Dimensions—Nominal diameter and length. The
1.5 This international standard was developed in accor-
shortest usable multiple length shall be specified (Table 2).
dance with internationally recognized principles on standard-
4.1.3 Certification—State if certification or a report of test
ization established in the Decision on Principles for the
results is required (Section 16).
Development of International Standards, Guides and Recom-
4.1.4 Purchaser Inspection—State which tests or inspec-
mendations issued by the World Trade Organization Technical
tions are to be witnessed (Section 13).
Barriers to Trade (TBT) Committee.
4.1.5 Samples for Product (Check) Analysis—State whether
samples should be furnished (9.2.2).
5. Chemical Composition
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
5.1 The material shall conform to the composition limits
B02.07 on Refined Nickel and Cobalt and Their Alloys.
specified in Table 1.
Current edition approved Nov. 1, 2018. Published November 2018. Originally
approved in 1958. Last previous edition approved in 2013 as B335 – 03 (2013).
DOI: 10.1520/B0335-03R18.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cation SB-335 in Section II of that Code. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Designation established in accordance with ASTM E527 and SAE J1086, Standards volume information, refer to the standard’s Document Summary page on
Recommended Practice for Numbering Metals and Alloys (UNS). the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B335−03(2018)
TABLE 1 Chemical Requirements
7.5.1 Rods ordered to random or nominal lengths shall be
Composition Limits, % furnished with either cropped or sawed ends.
Element
Alloy Alloy Alloy Alloy Alloy 7.5.2 Rods ordered to cut lengths shall be furnished with
N10001 N10665 N10675 N10629 N10624
square saw-cut or machined ends.
A A A
Nickel remainder remainder 65.0 min remainder Bal
7.6 Weight—For calculations of mass or weight, the follow-
Molybdenum 26.0–30.0 26.0–30.0 27.0–32.0 26.0–30.0 21.0-25.0
Iron 4.0–6.0 2.0 max 1.0–3.0 1.0–6.0 5.0-8.0
ing densities shall be used:
Chromium 1.0 max 1.0 max 1.0–3.0 0.5–1.5 6.0-10.0
Density
Carbon, 0.05 0.02 0.01 0.01 0.01
3 3
Alloy lb/in g/cm
max
N10001 0.334 9.24
Silicon, max 1.0 0.10 0.10 0.05 0.10
N10665 0.333 9.22
Cobalt, max 2.5 1.00 3.0 2.5 1.0
N10675 0.333 9.22
Manganese, 1.0 1.0 3.0 1.5 1.0
N10629 0.333 9.22
max
N10624 0.322 8.9
Phosphorus, 0.04 0.04 0.030 0.04 0.025
max
7.7 Straightness—The maximum curvature (depth of chord)
Sulfur, max 0.03 0.03 0.010 0.01 0.01
shall not exceed 0.050 in. multiplied by the length of the chord
Vanadium 0.2–0.4 . 0.20 max . .
Nickel plus . . 94.0–98.0 . in feet (0.04 mm multiplied by the length in centimetres).
Molybdenum
Aluminum . . 0.50 max 0.1–0.5 0.5
8. Workmanship, Finish, and Appearance
Columbium . . 0.20 .
(Nb), max 8.1 The material shall be uniform in quality and condition,
Copper, max . . 0.20 0.5 0.5
smooth, and free of injurious imperfections.
Tantalum, . . 0.20 .
max
9. Sampling
Titanium, . . 0.20 .
max
9.1 Lots for Chemical Analysis and Mechanical Testing:
Tungsten, . . 3.0 .
9.1.1 A lot for chemical analysis shall consist of one heat.
max
Zirconium, . . 0.10 . 9.1.2 A lot of bar for mechanical testing shall be defined as
max
the material from one heat in the same condition and specified
Magnesium, . . . . .
diameter.
max
A
9.2 Sampling for Chemical Analysis:
See 12.1.
9.2.1 A representative sample shall be obtained from each
heat during pouring or subsequent processing.
5.2 If a product (check) analysis is made by the purchaser, 9.2.2 Product (check) analysis shall be wholly the respon-
the material shall conform to the requirements specified in sibility of the purchaser.
Table 1 subject to the permissible tolerances in B880.
9.3 Sampling for Mechanical Testing:
9.3.1 Arepresentativesampleshallbetakenfromeachlotof
6. Mechanical Properties and Other Requirements
finished material.
6.1 The mechanical properties of the material at room
10. Number of Tests and Retests
temperature shall conform to those shown in Table 3.
10.1 Chemical Analysis—One test per heat.
7. Dimensions and Permissible Variations
10.2 Tension Tests—One test per lot.
7.1 Diameter—The permissible variations from the speci-
10.3 Retests—If the specimen used in the mechanical test of
fied diameter shall be as prescribed in Table 2.
any lot fails to meet the specified requirements, two additional
7.2 Out of Roundness—The permissible var
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