ASTM A624/A624M-13
(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 A624) which is supplied in nominal thicknesses from 0.0061 to 0.0149 in. or SI units [as A624M] 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.
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Designation:A624/A624M −13
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 (´) 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.
1. Scope* A754/A754M Test Method for Coating Weight (Mass) of
Metallic Coatings on Steel by X-Ray Fluorescence
1.1 This specification covers single-reduced electrolytic tin
B339 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-
mercially available tin coating weights [masses], and is nor-
3.1 Orders for product under this specification shall include
mally supplied with a trimmed edge. the following information, as required and applicable, to
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 A624) which is supplied in nominal
(Section 1),
thicknesses from 0.0061 to 0.0149 in. or SI units [as A624M]
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 Figs 1 and 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 A623 [A623M]) (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 A623 [A623M]),
priate safety and health practices and determine the applica-
3.1.10 Temper designation (Specification A623 [A623M])
bility of regulatory limitations prior to use.
(this must be consistent with the intended application),
3.1.11 Intended application,
2. Referenced Documents
3.1.12 Quantity in base boxes (SITAs) (see Note 4),
2
2.1 ASTM Standards:
3.1.13 On coils, specify minimum or range of acceptable
A623 Specification for Tin Mill Products, General Require-
inside diameters. The standard inside diameter is approxi-
ments
mately 16 in. if ordered as A624 [410 mm if ordered as
A623M Specification for Tin Mill Products, General Re-
A624M]. Coils should be specified to a maximum coil weight
quirements [Metric]
if ordered as A624 [mass if ordered as A624M], or maximum
A630 Test Methods for Determination of Tin Coating
outside diameter or both,
Weights for Electrolytic Tin Plate
3.1.14 Packaging,
3.1.15 Specialrequirementswhereapplicable,J=plateorK
= plate, and
1
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 Alloysand 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, 2013. Published October 2013. Originally
ε1
base boxes, single reduced, electrolytic tin plate, No. 20, ATBC, L, T-5
approved in 1968. Last previous edition approved in 2008 as A624/A624M - 08 .
1
CA, 7C, 0.0088 in. thickness 31 ⁄4 in. by coil, 16 in. inside diameter, 65
DOI: 10.1520/A0624_A0624M-13.
2
in. maximum outside diameter, 25 000 lbs maximum coil weight, for 300
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
diameter sanitary open top ends in accordance with Specification A624/
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on A624M - XX. [250 SITAs, single reduced electrolytic tin plate, 2.2/2.2,
the ASTM website. ATBC, L, T-5, 7C, 0.22 mm thickness, 794 mm by coil, 410 mm inside
*A Summary of Changes section appears at the end of this
...
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.
´1
Designation: A624/A624M − 03 (Reapproved 2008) A624/A624M − 13
Standard Specification for
1
Tin Mill Products, Electrolytic Tin Plate, Single Reduced
This standard is issued under the fixed designation A624/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 (´) 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
ε NOTE—Editorially changed 4.1.2 in October 2008.
1. 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 A624) which is supplied in nominal thicknesses from
0.0061 to 0.0149 in. or SI units [as A624M] 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A623 Specification for Tin Mill Products, General Requirements
A623M Specification for Tin Mill Products, General Requirements [Metric]
A630 Test Methods for Determination of Tin Coating Weights for Electrolytic Tin Plate
A754/A754M Test Method for Coating Weight (Mass) of Metallic Coatings on Steel by X-Ray Fluorescence
B339 Specification for Pig Tin
3. Ordering Information
3.1 Orders for product under this specification shall include the following information, as required and applicable, to describe
adequately the desired product:
3.1.1 Name of product (single-reduced electrolytic tin plate) (Section 1),
3.1.2 Tin coating weight [mass] designation and marking, if any (Section 4, Table 1, Table 1, and Fig. 1Figs 1 and Fig. 2),2),
3.1.3 Surface appearance and finish (Section 5),
3.1.4 Chemical treatment (Section 6),
3.1.5 Oiling (Section 7),
3.1.6 Thickness (Specification A623 [A623M]) (this must be consistent with the intended application),
1
3.1.7 Coil width or cut size in increments of ⁄16 in. or 1 mm,
3.1.8 Where required, rolling direction will be specified on cut sizes and will be indicated by underlining the slit (rolling width)
dimension,
3.1.9 Steel type (Specification A623 [A623M]),
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee A01.20
on Tin Mill Products.
Current edition approved Oct. 1, 2008Oct. 1, 2013. Published October 2008 October 2013. Originally approved in 1968. Last previous edition approved in 2008 as
ε1
A624/A624M - 03.A624/A624M - 08 . DOI: 10.1520/A0624_A0624M-03R08E01.10.1520/A0624_A0624M-13.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A624/A624M − 13
TABLE 1 Electrolytic Tin Plate Coating Weight [Mass]
NOTE 1—Listed below are commonly produced coating weights
[masses]. By agreement between the producer and the purchaser, other
combinations of the coatings may be specified and the appropriate
minimum average test values will apply.
Nominal Tin Coating Minimum Average
Weight [Mass] each Coating Weight [Mass]
Designation No.
Surface, lb/base box [g/ each Surface Test
2 A
m ] Value, lb/base box
2
[g/m ]
B
5 [0.6/0.6] 0.025/0.02
...
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