ASTM B649-02
(Specification)Standard Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire
Standard Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire
SCOPE
1.1 This specification covers nickel-iron-chromium-molybdenum-copper low-carbon alloys (UNS N08904)*, nickel-iron-chromium-molybdenum-copper-nitrogen alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N low-carbon alloy (UNS R20033) bar and wire.
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 649 – 02
Standard Specification for
Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904),
Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925,
UNS N08031, and UNS N08926), and Cr-Ni-Fe-N
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Low-Carbon Alloy (UNS R20033) Bar and Wire
This standard is issued under the fixed designation B 649; 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.
1. Scope E 1473 Test Methods for Chemical Analysis of Nickel,
5
Cobalt, and High-Temperature Alloys
1.1 This specification covers nickel-iron-chromium-
molybdenum-copper low-carbon alloys (UNS N08904)*,
3. Terminology
nickel-iron-chromium-molybdenum-copper-nitrogen alloys
3.1 Definitions of Terms Specific to This Standard:
(UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-
3.1.1 bars—hot-finished rounds, squares, octagons, and
Fe-N low-carbon alloy (UNS R20033) bar and wire.
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hexagons: ⁄4 in. (6.35 mm) and over in diameter or size.
1.2 The values stated in inch-pound units are to be regarded
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Hot-finished flats: ⁄4 in. to 10 in. (254 mm) inclusive in width,
as the standard. The values given in parentheses are for
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⁄8 in. (3.18 mm) and over in thickness. Cold-finished rounds,
information only.
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squares, octagons, hexagons, and shapes: over ⁄2 in. (12.70
1.3 This standard does not purport to address all of the
3
mm) in diameter or size. Cold-finished flats: ⁄8 in. (9.52 mm)
safety concerns, if any, associated with its use. It is the
1
and over in width (see 3.1.1.1) and ⁄8 in. and over in thickness
responsibility of the user of this standard to become familiar
(see 3.1.1.2).
with all hazards including those identified in the appropriate
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3.1.1.1 Discussion—Widths less than ⁄8 in. (9.52 mm) and
Material Safety Data Sheet for this product/material as pro-
3
thicknesses less than ⁄16 in. (4.76 mm) are described generally
vided by the manufacturer, to establish appropriate safety and
as flat wire.
health practices, and determine the applicability of regulatory
1 3
3.1.1.2 Discussion—Thickness ⁄8 in. to under ⁄16 in. (3.18
limitations prior to use.
mm to under 4.76 mm) can be cold-rolled strip as well as bar.
2. Referenced Documents 3.1.2 wire—cold-finished only: round, square, octagon,
1
hexagon, and shape wire, ⁄2 in. (12.70 mm) and under in
2.1 ASTM Standards:
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diameter or size. Cold-finished only: flat wire, ⁄16 in. to under
B 880 Specification for General Requirements for Chemical
3 3
⁄8 in. (4.76 mm to under 9.52 mm) in width, 0.010 to under ⁄16
Check Analysis Limits for Nickel, Nickel Alloys, and
2
in. (0.25 to under 4.76 mm) in thickness.
Cobalt Alloys
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E 8 Test Methods forTensionTesting of Metallic Materials
4. Ordering Information
E 29 Practice for Using Significant Digits in Test Data to
4 4.1 It is the responsibility of the purchaser to specify all
Determine Conformance with Specifications
requirements that are necessary for material ordered to this
E 55 Practice for SamplingWrought Nonferrous Metals and
5 specification. Examples of such requirements include, but are
Alloys for Determination of Chemical Composition
not limited to, the following:
4.1.1 Quantity (weight or number of pieces),
1
4.1.2 Alloy name or UNS number,
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.3 Form (bar or wire),
B02.07 on Refined Nickel and Cobalt and Their Alloys.
4.1.4 Dimensions,
Current edition approved July 10, 2002. Published September 2002. Originally
4.1.5 Finish (Section 9),
published as B 649 - 81. Last previous edition B 649 - 95.
4.1.6 ASTM designation and year of issue,
* New designation established in accordance withASTM E 527 and SAE J1086,
Practice for Numbering Metals and Alloys (UNS).
4.1.7 Exceptions to the specification or special require-
2
Annual Book of ASTM Standards, Vol 02.04.
ments, and
3
Annual Book of ASTM Standards, Vol 03.01.
4 4.1.8 Certification (Section 16). State if certification is
Annual Book of ASTM Standards, Vol 14.02.
5
Annual Book of ASTM Standards, Vol 03.05. required.
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B649–02
A
TABLE 2 Mechanical Property Requirements
5. Materials and Manufacture
Cold Finished and Hot Finished Annealed, All Sizes
5.1 Heat Treatment—The material shall be supplied in the
Tensile Strength, Elongation in Forging
solution-treated condition except as noted below in 5.2.
Alloy
Yield Strength
2 in. (50.8 Quality, All
min, psi (MPa)
min, psi (MPa) mm), min, % Sizes
NOTE 1—The recommended heat treatmen
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