ASTM B818-03
(Specification)Standard Specification for Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy (UNS R31233) Plate, Sheet and Strip
Standard Specification for Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy (UNS R31233) Plate, Sheet and Strip
ABSTRACT
This specification covers the standard for cobalt-chromium-nickelmolybdenum-tungsten alloy UNS R31233 in the form of rolled plate, sheet, and strip proposed for use in wear applications and general corrosion service. Materials should conform to mechanical properties such as tensile strength, yield strength, and elongation.
SCOPE
1.1 This specification covers cobalt-chromium-nickel-molybdenum-tungsten alloy UNS R31233 in the form of rolled plate, sheet, and strip for wear applications and general corrosion service.
1.2 The following products are covered under this specification:
1.2.1 Sheet and Strip—Hot or cold rolled, annealed and descaled unless solution-annealing is performed in an atmosphere yielding a bright finish.
1.2.2 PlateHot 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.
1.4 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.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 818 – 03
Standard Specification for
Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy
1
(UNS R31233) Plate, Sheet and Strip
This standard is issued under the fixed designation B 818; 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 4. General Requirements
1.1 This specification covers cobalt-chromium-nickel- 4.1 Material furnished under this specification shall con-
molybdenum-tungsten alloy UNS R31233 in the form of rolled form to the applicable requirements of Specification B 906
plate, sheet, and strip for wear applications and general unless otherwise provided herein.
corrosion service.
5. Ordering Information
1.2 The following products are covered under this specifi-
5.1 It is the responsibility of the purchaser to specify all
cation:
1.2.1 Sheet and Strip—Hot or cold rolled, annealed and requirements that are necessary for material ordered under this
specification. Examples of such requirements include, but are
descaled unless solution-annealing is performed in an atmo-
sphere yielding a bright finish. not limited to, the following:
5.1.1 Alloy.
1.2.2 Plate—Hot rolled, solution-annealed, and descaled.
1.3 The values stated in inch-pound units are to be regarded 5.1.2 Dimensions—Thickness (in decimals of an inch),
width, and length (inch or fraction of an inch).
as the standard. The values given in parentheses are for
information only. 5.1.3 Certification—State if a report of test results is re-
quired (see Specification B 906, Section 21).
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 5.1.4 Optional Requirement—Plate; state how plate is to be
cut (see Specification B 906, Table A2.3).
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate 5.1.5 Purchase Inspection—State which tests or inspections
are to be witnessed (see Specification B 906, Section 18).
Material Safety Data Sheet for this product/material as pro-
5.1.6 Samples, for Product (Check) Analysis—State
vided by the manufacturer, to establish appropriate safety and
health practices, and determine the applicability of regulatory whether samples should be furnished (see Specification B 906,
Section 7.2.2).
limitations prior to use.
2. Referenced Documents 6. Chemical Composition
6.1 The material shall conform to the requirements as to
2.1 ASTM Standards:
B 906 Specification for General Requirements for Flat- chemical composition prescribed in Table 1.
2
6.2 If a product (check) analysis is made by the purchaser,
Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
the material shall conform to the requirements specified in
3. Terminology
Table 1 and Specification B 906.
3.1 Definitions of Terms Specific to This Standard:
7. Mechanical Properties and Other Requirements
3
3.1.1 plate—material ⁄16 in. (4.76 mm) and over in thick-
7.1 Tensile Properties—The material shall conform to the
ness.
3
3.1.2 sheet and strip—material under ⁄16 in. (4.76 mm) in room temperature tensile properties prescribed in Table 2.
thickness.
8. Dimensions, Mass, and Permissible Variations
8.1 Thickness:
1
This specification is under the jurisdiction of ASTM Committee B02 on
8.1.1 Sheet and Strip—The thickness shall be measured
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
3
B02.07 on Refined Nickel and Cobalt and Their Alloys.
with the micrometer spindle ⁄8 in. (9.525 mm) or more from
Current edition approved June 10, 2003. Published July 2003. Originally
any edge for material 1 in. (25.4 mm) or over in width and at
approved in 1991. Last previous edition approved in 1998 as B 818 - 98a.
any place on material under 1 in. in width.
2
Annual Book of ASTM Standards, Vol 02.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B818–03
TABLE 1 Chemical Requirements
multiplied by the length in feet (0.04 mm multiplied by the
Element Composition Limits, % length in centimetres).
8.3.2 Straightness for coiled strip is subject to agreement
Boron 0.015 max
Carbon 0.02–0.10
between the manufacturer and the purchaser.
Chromium 23.5–27.5
8.4 Squareness (Sheet)—For sheets of all thicknesses and
Iron 1.0–5.0
widths of 6 in. (152.4 mm) or more, the angle between adjacent
Manganese 0.1–1.5
1
Molybdenum 4.0–6.0
sides shall be 90 6 0.15° ( ⁄16 in. in 24 in. or 2.6 mm/m).
Nitrogen 0.03–0.12
8.5 Flatness—Plate, sheet, and strip shall be commercially
Nickel 7.0–11.0
flat.
Phosphorou
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.