ASTM B818-03(2008)
(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 Plate—Hot rolled, solution-annealed, and descaled.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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 (MSDS) 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:B818 −03(Reapproved2008)
StandardSpecification for
Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy
(UNS R31233) Plate, Sheet and Strip
This standard is issued under the fixed designation B818; 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.
1. Scope 3.1.1 plate—material ⁄16 in. (4.76 mm) and over in thick-
ness.
1.1 This specification covers cobalt-chromium-nickel-
3.1.2 sheet and strip—material under ⁄16 in. (4.76 mm) in
molybdenum-tungsten alloy UNS R31233 in the form of rolled
thickness.
plate, sheet, and strip for wear applications and general
corrosion service.
4. General Requirements
1.2 The following products are covered under this specifi-
4.1 Material furnished under this specification shall con-
cation:
form to the applicable requirements of Specification B906
1.2.1 Sheet and Strip—Hot or cold rolled, annealed and
unless otherwise provided herein.
descaled unless solution-annealing is performed in an atmo-
sphere yielding a bright finish.
5. Ordering Information
1.2.2 Plate—Hot rolled, solution-annealed, and descaled.
5.1 It is the responsibility of the purchaser to specify all
1.3 The values stated in inch-pound units are to be regarded
requirements that are necessary for material ordered under this
as standard. The values given in parentheses are mathematical
specification. Examples of such requirements include, but are
conversions to SI units that are provided for information only
not limited to, the following:
and are not considered standard.
5.1.1 Alloy.
1.4 This standard does not purport to address all of the
5.1.2 Dimensions—Thickness (in decimals of an inch),
safety concerns, if any, associated with its use. It is the
width, and length (inch or fraction of an inch).
responsibility of the user of this standard to become familiar
5.1.3 Certification—State if a report of test results is re-
with all hazards including those identified in the appropriate
quired (see Specification B906, Section 21).
Material Safety Data Sheet (MSDS) for this product/material
5.1.4 Optional Requirement—Plate; state how plate is to be
as provided by the manufacturer, to establish appropriate
cut (see Specification B906, Table A2.3).
safety and health practices, and determine the applicability of
5.1.5 Purchase Inspection—State which tests or inspections
regulatory limitations prior to use.
are to be witnessed (see Specification B906, Section 18).
5.1.6 Samples, for Product (Check) Analysis—State whether
2. Referenced Documents
samples should be furnished (see Specification B906, Section
2.1 ASTM Standards:
7.2.2).
B906 Specification for General Requirements for Flat-
Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
6. Chemical Composition
6.1 The material shall conform to the requirements as to
3. Terminology
chemical composition prescribed in Table 1.
3.1 Definitions of Terms Specific to This Standard:
6.2 If a product (check) analysis is made by the purchaser,
the material shall conform to the requirements specified in
Table 1 and Specification B906.
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
7. Mechanical Properties and Other Requirements
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Nov. 1, 2008. Published November 2008. Originally
7.1 Tensile Properties—The material shall conform to the
approved in 1991. Last previous edition approved in 2003 as B818 - 03. DOI:
room temperature tensile properties prescribed in Table 2.
10.1520/B0818-03R08.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
8. Dimensions, Mass, and Permissible Variations
Standards volume information, refer to the standard’s Document Summa
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B818–98a Designation: B 818 – 03 (Reapproved 2008)
Standard Specification for
Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy
(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 (´) indicates an editorial change since the last revision or reapproval.
1. 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 Plate—Hot rolled, solution-annealed, and descaled.
1.3The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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 (MSDS) 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.
2. Referenced Documents
2.1 ASTM Standards:B880Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel
Alloys, and Cobalt Alloys
E8Test Methods for Tension Testing of Metallic Materials
E29Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E55Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition
E1473Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys B 906 Specification for General
Requirements for Flat-Rolled
NickelandNickelAlloysPlate,
Sheet, and Strip
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 plate—material ⁄16 in. (4.76 mm) and over in thickness.
3.1.2 sheet and strip—material under ⁄16 in. (4.76 mm) in thickness.
4. General Requirements
4.1 Material furnished under this specification shall conform to the applicable requirements of Specification B 906 unless
otherwise provided herein.
5. Ordering Information
4.1It5.1 It is the responsibility of the purchaser to specify all requirements that are necessary for the safe and satisfactory
This specification is under the jurisdiction of ASTM Committee B-2B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on
Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 10, 1998.Nov. 1, 2008. Published November 1998.2008. Originally published as B818–91.approved in 1991. Last previous edition
B818–98.approved in 2003 as B 818 - 03.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 02.04.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
B 818 – 03 (2008)
performance of material ordered under this specification. Examples of such requirements include, but are not limited to, the
following:
4.1.15.1.1 Alloy.
4.1.2
5.1.2 Dimensions—Thickness (in decimals of an inch), width, and length (inch or fraction of an inch).
4.1.3
5.1.3 Certification—State if a report of test results is required (see Section 15).
4.1.4—State if a report of test results is required (see Specification B 906, Section 21).
5.1.4 Optional Requirement—Plate; state how plate is to be cut (see 7.7.1 and Table 1).
4.1.5—Plate; state how plate is to be cut (see Specification B 906, Table A2.3).
5.1.5 Purchase Inspection—State which tests or inspections are to be witnessed (see Section 13).
4.1.6—State which tests or inspections are to be witnessed (see Specification B 906, Section 18).
5.1.6 Samples, for Product (Check) Analysis—State whether samples should be furnished (see 9.2.2).
5.—State whether samples should be furnished (see Specification B 906, Section 7.2.2).
6. Chemical Composition
5.1The6.1 The material shall conform to the requirements as to chemical composition prescribed in Table 21.
5.2If a product (check) analysis is made by the purchaser, the material shall conform to the requirements specified in Table 2
subject to the permissible tolerances per B880
6.2 If a product (check) analysis is made by the purchaser, the material shall conform to the requirements specified in Table 1
and Specification B 906.
6.
7. Mechanical Properties and Other Requirements
6.1
7.1 Tensile Properties—The material shall conform to the room temperature tensile properties prescribed in Table 32.
7.
8. Dimensions, Mass, and Permissible Variations
7.1
8.1 Thickness:
TABLE 1 PChermissibcal Re Varquiations in Width of Shremet
and Strips
SpElecified Thickness, t PerComipossible Variations Lin Specmifie
Specified Width,
in. (mm) Widths, in. (mm) %
in. (mm)
+ −
Boron 0.015 max
Sheet 0.02–0.10
Carbon Sheet 0.02–0.10
Chromium 23.5–27.5
0.187 (4.75) and under 2 (50.8) and over 0
Iron 1.0–5.8) and over 0
0.125 (3.18) 0
Manganese 0.1–1.5
Strip (Slit Edges) 4.0–6.0
Molybdenum Strip (Slit Edges) 4.0–6.0
Nitrogen 0.03–0.12
Over 0.020 to 0.075 (0.51 to 1.90),incl 24 (610) and under
Nickel 7.0–11.0) and under
0.007 (0.18) 0.007 (0.18)
Phosphorous 0.030 max
Over 0.075 to 0.100 (1.90 to 2.54), incl 24 (610)and under x
Sulfur 0.020 mand under x
0.009 (0.23) 0.009 (0.23)
Silicon 0.05–1.00
Over 0.100to 0.125 (2.54 to 3.18), incl 24 (610) and under –3.0
Tungsten 1.0) and under –3.0
0.012 (0.30) 0.012 (0.30)
A
Cobalt Remainder
A
See Specification B906.
B 818 – 03 (2008)
TABLE 2 ChMemchanical Property Requirements
Element Composition Limits, %
Element Tensile Strength, %
Boron 0.015 max
Boro min, ksi (MPa) 130 (896)
Carbon 0.02–0.10
Yield Strength, min, ksi (MPa) 55 (379)
Chromium 23.5–27.5
Elomium 23.5–27.5
Iron1.0–5.0
Manganese 0.1–1.5
Molybdenum 4.0–6.0
Mtionum 4.0–6.0
N itrogen0.03–0.1 2N ickel 7.0–11.0
N in 2 ickel 7.0–11.0
Phosphorous 0.030 max
Sulfur 0.020 max
Silicon0.05–1.00
Silicon. (500
Tungsten 1.0–3.0
A
Cobalt Re mainder min % 15
A
Cobalt Re8 mm) or 4D min 15
%
A
S D refe12.1.1rs to the diameter of the tension specimen.
7.1.1Plate—The permissible variations in thickness of plate shall be as prescribed in Table 4.
7.1.2
8.1.1 Sheet and Strip—The permissible variations in thickness of sheet and strip shall be as prescribed inTable 5.The thickness
3 3
shall be measured with the m
...
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