ASTM A623M-22

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A623M −22
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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
INTRODUCTION
ThisspecificationisthemetriccounterpartofSpecificationA623.ItisnotintendedtoreplaceA623.
Users of the standard should note several very significant differences in how the product is produced
and marketed.
(1)Themetricproductdoesnotcarrytheoverrunassociatedwithtinmillproductsproducedtocustomaryunits.Metrictinmill
products are produced to ordered size.
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(2)The metric product is designated in units of 100m called a SITA(System InternationalTinplateArea), 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 Specification A623M.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This specification covers a group of common
mendations issued by the World Trade Organization Technical
requirements,whichunlessotherwisespecifiedinthepurchase
Barriers to Trade (TBT) Committee.
order or in an individual specification, shall apply to tin mill
products.
2. Referenced Documents
1.2 In case of conflict in requirements, the requirements of
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2.1 ASTM Standards:
the purchase order, the individual material specification, and
A370Test Methods and Definitions for Mechanical Testing
this general specification shall prevail in the sequence named.
of Steel Products
NOTE 1—A complete inch-pound companion to Specification A623M A623Specification for Tin Mill Products, General Require-
has been developed—Specification A623; therefore, no inch-pound
ments
equivalents are presented.
A700Guide for Packaging, Marking, and Loading Methods
1.3 The following safety hazards caveat covers Annex A1
for Steel Products for Shipment
throughAnnexA8ofthisspecification: This standard does not
A987Practice for Measuring Shape Characteristics of Tin
purport to address all of the safety concerns, if any, associated
Mill Products
with its use. It is the responsibility of the user of this standard
E18Test Methods for Rockwell Hardness of Metallic Ma-
to establish appropriate safety, health, and environmental
terials
practices and determine the applicability of regulatory limita-
E112Test Methods for Determining Average Grain Size
tions prior to use. 3
2.2 Military Standards:
1.4 This international standard was developed in accor-
MIL-STD-129Marking for Shipment and Storage
dance with internationally recognized principles on standard-
1 2
This specification is under the jurisdiction ofASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.20 on Tin Mill Products. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2022. Published April 2022. Originally the ASTM website.
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approved in 1978. Last previous edition approved in 2016 as A623M–16. DOI: AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
10.1520/A0623M-22. 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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A623M−22
MIL-STD-163 SteelMillProducts,PreparationforMarking 3.1.13 electrolytic tin plate, n—light-gage, low-carbon,
and Storage cold-reduced steel on which tin has been electrodeposited by
3 an acid or alkaline process.
2.3 Federal Standard:
2
Fed. Std. No. 123Marking for Shipment (Civil Agencies) 3.1.13.1 J Plate, n—electrolytic tin plate, 5.6/2.8g⁄m or
heavier tin coating, with improved corrosion performance for
3. Terminology some galvanic det
...