ASTM A623M-06a
(Specification)Standard Specification for Tin Mill Products, General Requirements [Metric]
Standard Specification for Tin Mill Products, General Requirements [Metric]
SCOPE
1.1 This specification covers a group of common requirements which, unless otherwise specified in the purchase order or in an individual specification, shall apply to tin mill products.
The following safety hazards caveat pertains to through of this specification: 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 1
This metric specification is equivalent to Specification A 623 and is compatible in technical content.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: A 623M – 06a
METRIC
Standard Specification for
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Tin Mill Products, General Requirements [Metric]
This standard is issued under the fixed designation A623M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
INTRODUCTION
This specification is the metric counterpart of Specification A623. It is not intended to replace
A623. Users of the standard should note several very significant differences in how the product is
produced and marketed.
(1) The metric product does not carry the overrun associated with tin mill products produced to
customary units. Metric tin mill products are produced to ordered size.
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(2)Themetricproductisdesignatedinunitsof100m calledaSITA(SystemInternationalTinplate
Area), rather than in base boxes.
(3) The metric product is designated by thickness in millimetres rather than by basis weight.
(4) Coating weights are given in grams per square metre, not pounds per base box.
(5) Thickness tolerances are given in absolute figures instead of a 6 percentage.
(6) Each package of metric tin mill products contains 100 sheets, not the 112 of customary unit
packages.
All of the above significant differences, as well as others of lesser consequence, should be
considered when switching from Specification A623 to A623M.
1. Scope 2. Referenced Documents
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1.1 This specification covers a group of common require- 2.1 ASTM Standards:
ments which, unless otherwise specified in the purchase order A370 TestMethodsandDefinitionsforMechanicalTesting
or in an individual specification, shall apply to tin mill of Steel Products
products. A700 Practices for Packaging, Marking, and Loading
1.2 The following safety hazards caveat pertains to Annex Methods for Steel Products for Domestic Shipment
A1 throughAnnexA8 of this specification: This standard does A987 Test Method for Measuring Shape Characteristics of
not purport to address all of the safety concerns, if any, Tin Mill Products
associated with its use. It is the responsibility of the user of this E18 Test Methods for Rockwell Hardness and Rockwell
standard to establish appropriate safety and health practices Superficial Hardness of Metallic Materials
and determine the applicability of regulatory limitations prior E112 Test Methods for Determining the Average Grain
to use. Size
2.2 Military Standards:
NOTE 1—This metric specification is equivalent to SpecificationA623
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MIL-STD-129 Marking for Shipment and Storage
and is compatible in technical content.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
A01.20 on Tin Mill Products. the ASTM website.
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Current edition approved Oct. 1, 2006. Published October 2006. Originally AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
approved in 1978. Last previous edition approved in 2006 as A623M–06.
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 623M – 06a
MIL-STD-163 SteelMillProducts,PreparationforMarking A4),TinCrystalSize(TCS)(seeAnnexA3).Thealloylayeris
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and Storage normally light in color, characteristic of the acid tinning
2.3 Federal Standard: process.
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Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
3.1.13.2 K Plate, n—electrolytic tin plate, 5.6/2.8 g/m or
heavier tin coating, with improved corrosion performance for
3. Terminology
some galvanic detinning food products as specified in the
3.1 Definitions:
following table and as measured by the Special Property Tests
3.1.1 black plate, n—light-gage, low-carbon, cold-reduced
for Pickle Lag (PL) (seeAnnexA2), Iron SolutionValue (ISV)
steelintendedforuseintheuntinnedstateorfortheproduction
(seeAnnexA4),Tin Crystal Size (TCS) (seeAnnexA3),Alloy
of other tin mill products. It is supplied only in a dry or oiled
Tin Couple (ATC) (see Annex A5) and Aerated Media Polar-
condition.
ization Test (AMP) (see Annex A8).
3.1.2 box annealing, n—aprocessinvolvingslowheatingof
Special Properties Aims
coils to a subcritical temperature, holding, and cooling there-
Pickle Lag 10 s max
Iron Solution Value 20 µg iron max
from, to recrystallize the grain, and
...
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