ASTM B814-06
(Specification)Standard Specification for Nickel-Chromium-Iron-Molybdenum-Tungsten Alloy (UNS N06920) Plate, Sheet, and Strip
Standard Specification for Nickel-Chromium-Iron-Molybdenum-Tungsten Alloy (UNS N06920) Plate, Sheet, and Strip
ABSTRACT
This specification covers the requirements for UNS N06920 nickel-chromium-iron-molybdenum-tungsten alloy in the form of rolled plates, sheets and strips for general corrosion service. The range of products covered here includes brightly finished hot or cold rolled, annealed and descaled unless solution-annealed sheets and strips and hot rolled, solution-annealed, and descaled plates.
SCOPE
1.1 This specification covers nickel-chromium-iron-molybdenum-tungsten alloy UNS N06920 in the form of rolled plate, sheet, and strip for general corrosion service.
1.2 The following products are covered under this specification:
1.2.1 Sheet and StripHot or cold rolled, annealed and descaled unless solution-annealing is performed in an atmosphere yielding a bright finish; and
1.2.2 Plate - Hot rolled, solution-annealed, and descaled.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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 heal practices, and determine the applicability of regulatory limitations prior to use.
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Designation: B814 – 06
Standard Specification for
Nickel-Chromium-Iron-Molybdenum-Tungsten Alloy
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(UNS N06920) Plate, Sheet, and Strip
This standard is issued under the fixed designation B814; 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.
TABLE 1 Chemical Requirements
1. Scope
Element Composition Limits, %
1.1 This specification covers nickel-chromium-iron-
molybdenum-tungsten alloy UNS N06920 in the form of rolled
Chromium 20.5–23.0
plate, sheet, and strip for general corrosion service.
Iron 17.0–20.0
1.2 The following products are covered under this specifi-
Molybdenum 8.0–10.0
Tungsten 1.0–3.0
cation:
Carbon, max 0.03
1.2.1 Sheet and Strip—Hot or cold rolled, annealed and
Cobalt, max 5.0
descaled unless solution-annealing is performed in an atmo-
Manganese, max 1.0
Phosphorus, max 0.040
sphere yielding a bright finish; and
Sulfur, max 0.030
1.2.2 Plate—Hot rolled, solution-annealed, and descaled.
Silicon, max 1.0
1.3 The values stated in inch-pound units are to be regarded
Nickel Remainder
as the standard. The values given in parentheses are for
information only.
1.4 This standard does not purport to address all of the
4. General Requirements
safety concerns, if any, associated with its use. It is the
4.1 Materials furnished under this specification shall con-
responsibility of the user of this standard to become familiar
form to the applicable requirements of Specification B906
with all hazards including those identified in the appropriate
unless otherwise provided herein.
Material Safety Data Sheet (MSDS) for this product/material
as provided by the manufacturer, to establish appropriate
5. Ordering Information
safety and heal practices, and determine the applicability of
5.1 It is the responsibility of the purchaser to specify all
regulatory limitations prior to use.
requirements that are necessary for the safe and satisfactory
performance of material ordered to this specification. Ex-
2. Referenced Documents
amples of such requirements include, but are not limited to, the
2
2.1 ASTM Standards:
following:
B906 Specification for General Requirements for Flat-
5.1.1 Alloy.
Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
5.1.2 Dimensions—Thickness (in decimals of an inch),
width, and length (inch or fraction of an inch).
3. Terminology
5.1.3 Certification—State whether a report of test results is
3.1 Definitions of Terms Specific to This Standard:
required (Specification B906).
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3.1.1 plate, n—material ⁄16 in. (4.76 mm) and over in
5.1.4 Optional Requirement—Plate; state how the plate is to
thickness.
be cut (see 8.8.1 and Specification B906, Table A2.3).
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3.1.2 sheet and strip, n—materialunder ⁄16in.(4.76mm)in
5.1.5 Purchase Inspection—State which tests or inspections
thickness.
are to be witnessed (Specification B906).
5.1.6 Samples for Product (Check) Analysis—State whether
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This specification is under the jurisdiction of ASTM Committee B02 on
samples shall be furnished (Specification B906).
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
6. Chemical Composition
Current edition approved Dec. 1, 2006. Published January 2007. Originally
6.1 The material shall conform to the chemical composition
approved in 1991. Last previous edition approved in 2002 as B814 – 02. DOI:
10.1520/B0814-06.
requirements prescribed in Table 1.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 If a product (check) analysis is made by the purchaser,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the material shall conform to the product (check) analysis
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. variations in accordance with Specification B906.
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B814 – 06
TABLE 2 Mechanical Property Requirements
8.4.2 Sheet and Strip—Sheetandstripmaybeorderedtocut
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lengths, in which case a variation of ⁄8 in. (3.175 mm) over the
Tensile Strength, min, ksi (MPa) 95 (655)
specified length shall be permitted, with a 0 minus tolerance.
Yield Strength, min, ksi (MPa) 35 (240)
A 8.5 Straightness:
Elongation in 2 in. (50.8 mm) or 4D , min,% 35
8.5.1 The edgewise curvature (depth of chord) of flat sheet,
A
D refers to the diameter of the tension specimen.
A
TABLE 3 Permissible Variations in Thickness for Wide Plates
Width, in. (mm)
Over 48 (1219 mm) Over 84 (2134) to Over 120 (3048) to
...
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