ASTM A624/A624M-03
(Specification)Standard Specification for Tin Mill Products, Electrolytic Tin Plate, Single Reduced
Standard Specification for Tin Mill Products, Electrolytic Tin Plate, Single Reduced
ABSTRACT
This specification covers single-reduced electrolytic tin plate produced from low-carbon cold-reduced steel furnished in coils and cut sizes for use in the manufacture of cans, closures, crowns, and other products. The material shall conform to the coating weight [mass] test values. Details on standard heavy marking system for differential electrolytic tin plate shall be described. Standard light side marking system for differential electrolytic tin plate shall also be indicated. Chemical treatments such as cathodic sodium dichromate treatment and sodium dichromate dip treatment shall be applied after the tin coating has been deposited and immediately preceding the oiling, to control tin oxide formation and growth.
SCOPE
1.1 This specification covers single-reduced electrolytic tin plate produced from low-carbon cold-reduced steel furnished in coils and cut sizes for use in the manufacture of cans, closures, crowns, and other products. It is furnished in commercially available tin coating weights [masses], and is normally supplied with a trimmed edge.
1.2 This specification is applicable to orders in either inch-pound units (as A 624) which is supplied in nominal thicknesses from 0.0061 to 0.0149 in. or SI units [as A 624M] which is supplied in nominal thicknesses from 0.155 to 0.378 mm.
1.3 The values stated in either inch-pound or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: A 624/A 624M – 03
Standard Specification for
1
Tin Mill Products, Electrolytic Tin Plate, Single Reduced
This standard is issued under the fixed designationA624/A624M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* A 754 Test Method for Coating Thickness by X-Ray Fluo-
rescence
1.1 This specification covers single-reduced electrolytic tin
B 339 Specification for Pig Tin
plate produced from low-carbon cold-reduced steel furnished
in coils and cut sizes for use in the manufacture of cans,
3. Ordering Information
closures, crowns, and other products. It is furnished in com-
3.1 Orders for product under this specification shall include
mercially available tin coating weights [masses], and is nor-
the following information, as required and applicable, to
mally supplied with a trimmed edge.
describe adequately the desired product:
1.2 This specification is applicable to orders in either
3.1.1 Name of product (single-reduced electrolytic tin plate)
inch-pound units (as A 624) which is supplied in nominal
(Section 1),
thicknesses from 0.0061 to 0.0149 in. or SI units [as A 624M]
3.1.2 Tin coating weight [mass] designation and marking, if
which is supplied in nominal thicknesses from 0.155 to 0.378
any (Section 4, Table 1, and Fig. 1 and Fig. 2),
mm.
3.1.3 Surface appearance and finish (Section 5),
1.3 The values stated in either inch-pound or SI units are to
3.1.4 Chemical treatment (Section 6),
be regarded as standard.Within the text, the SI units are shown
3.1.5 Oiling (Section 7),
in brackets. The values stated in each system are not exact
3.1.6 Thickness (Specification A 623 [A 623M]) (this must
equivalents. Therefore, each system must be used indepen-
be consistent with the intended application),
dently of the other. Combining values from the two systems
1
3.1.7 Coilwidthorcutsizeinincrementsof ⁄16in.or1mm,
may result in nonconformance with this specification.
3.1.8 Where required, rolling direction will be specified on
1.4 This standard does not purport to address all of the
cut sizes and will be indicated by underlining the slit (rolling
safety concerns, if any, associated with its use. It is the
width) dimension,
responsibility of the user of this standard to establish appro-
3.1.9 Steel type (Specification A 623 [A 623M]),
priate safety and health practices and determine the applica-
3.1.10 Temper designation (Specification A 623 [A 623M])
bility of regulatory limitations prior to use.
(this must be consistent with the intended application),
2. Referenced Documents 3.1.11 Intended application,
2 3.1.12 Quantity in base boxes (SITAS) (see Note 4),
2.1 ASTM Standards:
3.1.13 On coils, specify minimum or range of acceptable
A 623 SpecificationforTinMillProducts,GeneralRequire-
inside diameters. The standard inside diameter is approxi-
ments
mately 16 in. if ordered as A 624 [410 mm if ordered as A
A 623M Specification for Tin Mill Products, General Re-
624M]. Coils should be specified to a maximum coil weight if
quirements (Metric)
ordered as A 624 [mass if ordered as A 624M], or maximum
A 630 Test Methods for Determination of Tin Coating
outside diameter or both,
Weights for Hot-Dip and Electrolytic Tin Plate
3.1.14 Packaging,
3.1.15 Specialrequirementswhereapplicable,J=plateorK
= plate, and
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
3.1.16 ASTM specification designation and year of issue.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.20 on Tin Mill Products.
NOTE 1—A typical ordering description for coils is as follows: 1250
Current edition approved Oct. 1, 2003. Published December 2003. Originally
base boxes, single reduced, electrolytic tin plate, No. 20, DOS, L,T-5 CA,
approved in 1968. Last previous edition approved in 1998 as A 624/A 624M - 98.
1
2 7C, 0.0088 in. thickness 31 ⁄4 in. by coil, 16 in. inside diameter, 65 in.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
maximum outside diameter, 25 000 lbs maximum coil weight, for 300
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
diameter sanitary open top ends in accordance with Specification A 624/
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. A 624M - XX. [250 SITAS, single reduced electrolytic tin plate, 2.2/2.2,
*ASummary of Changes section appears at the end of this standard.
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