ASTM B880-98
(Specification)Standard Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys, and Cobalt Alloys
Standard Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys, and Cobalt Alloys
SCOPE
1.1 This specification covers limits of variation for determining acceptability of the chemical composition of cast or wrought nickel, nickel alloy, and cobaly alloy parts and material, or both, supplied by a producer. Check analysis limits for elements or for ranges of elements not currently listed herein shall be as specified in the applicable material specification or as agreed upon by purchaser and supplier.
1.2 In the case of conflicting requirements , the requirements of the purchase order, the individual material specification, and this general specification shall prevail in the sequence named.
1.3 When specifically referenced in the material specification, the buyer may elect to apply check analysis limits to determine acceptability at his final acceptance or verification procedures. Check analysis limits are not permitted or are to be used by the producer for their own ladle or ingot analysis acceptance testing.
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Designation: B 880 – 98
Standard Specification for
General Requirements for Chemical Check Analysis Limits
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for Nickel, Nickel Alloys and Cobalt Alloys
This standard is issued under the fixed designation B 880; 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 specification, or to determine variations in compositions within
a heat or lot.
1.1 This specification covers limits of variation for deter-
3.1.1.1 Discussion—Heat or lot acceptance or rejection of
mining acceptability of the chemical composition of cast or
parts and materials may be made by applying check limits as
wrought nickel, nickel alloy, and cobalt alloy parts and/or
described in 3.1.2. Check limits of finished parts or material do
material supplied by a producer. Check analysis limits for
not apply to elements whose percentage can be varied by
elements or for ranges of elements not currently listed herein
fabricating techniques employed unless the sample is taken in
shall be as specified in the applicable material specification or
such a manner as to exclude such variations.
as agreed upon by purchaser and supplier.
3.1.2 variation limit, under minimum or over maximum—It
1.2 In case of any conflicting requirements, the require-
is the amount of variation for a specified element, which may
ments of the purchase order, the individual material specifica-
vary either under or over the specified composition limit during
tion, and this general specification shall prevail in the sequence
an individual check analysis.
named.
3.1.2.1 Discussion—In no case shall the reported determi-
1.3 When specifically referenced in the material specifica-
nations or any element in a heat, using the same analytical
tion, the buyer may elect to apply check analysis limit to
procedure, vary both above and below the specified range.
determine acceptability at his final acceptance or verification
3.1.3 remainder or balance—Refers to main element, which
procedures. Check analysis limits are not permitted or are to be
forms the basis of that particular alloy and from which the alloy
used by the producer for their own ladle or ingot analysis
is made.
acceptance testing.
3.1.3.1 Discussion—It is assumed to be present in an
2. Referenced Documents
amount approximately equal to the difference between 100 %
and the sum percentage of the alloying elements and listed
2.1 ASTM Standards:
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impurities or residual elements. It need not be analyzed or need
E 39 Test Method for Chemical Analysis of Nickel
an actual percentage figure for reporting purposes.
E 55 Practice for Sampling Wrought Nonferrous Metals and
2
3.1.4 residual elements, each, maximum—The maximum
Alloys for Determination of Chemical composition
amount of an individual element not mentioned specifically in
E 88 Practice for Sampling Nonferrous Metals and Alloys
2
the specified composition, but which may be present, due to
in Cast Form for Determination of Chemical Composition
presence in starting raw materials or manufacturing processes.
E 1473 Test Methods for Chemical Analysis of Ni, Co and
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3.1.4.1 Discussion—Producers will not normally analyze
High Temperature alloys
for such elements, unless specifically asked for in the specifi-
2.2 SAE Standards:
cation or purchase order.
AMS 2269 Chemical Check Analysis Limits
3.1.4.2 Discussion—Reporting analyses of unspecified ele-
Nickel, Nickel Alloys and Cobalt alloys
ments is permitted.
3. Terminology
3.1.5 residual elements, total, maximum—The sum total of
the residual elements (see 3.1.4) which may be possibly
3.1 Definitions:
present.
3.1.1 check (product or verification) analysis—Analysis
3.1.5.1 Discussion—It is not inferred by this statement that
made by buyer of parts and materials to verify conformity to
an analysis need be made for each element of the periodic table
not mentioned specifically in the composition section.
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This test method is under the jurisdiction of Committee B-02 on Nonferrous
Metals and Alloys, and is the direct responsibility of Subcommittee B02.07 on
4. Technical Requirements
Refined Nickel and Cobalt and Their Alloys.
Current edition approved April 10, 1998. Published September 1998.
4.1 Analytical Procedures—Referee analysis shall be by
2
Annual Book of ASTM Standards, Vol 03.05.
any method acceptable to purchaser and vendor.
3
Annual Book of ASTM Standards, Vol 03.06.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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