ASTM A626/A626M-13
(Specification)Standard Specification for Tin Mill Products, Electrolytic Tin Plate, Double Reduced
Standard Specification for Tin Mill Products, Electrolytic Tin Plate, Double Reduced
ABSTRACT
This specification covers double-reduced electrolytic tin plate produced from low-carbon cold-reduced steel furnished in coils and cut sizes for use predominately in the manufacture of cans. Double-reduced plate is relatively brittle and has very distinct directional properties. The rolling direction shall be specified on cut sizes and will be indicated by underlining the slit (rolling width) dimension. In sampling for tin coating weights [masses], the following procedure shall be used: a test strip shall be taken at random from a representative section of each coil across its width; from one or two coil lots, each coil shall be sampled; and a sheet shall be taken at random from each packages, each taken from different bundles from any one item of a specific shipment. X-ray fluorescence method shall be performed to determine the tin coating weight. Surface appearance shall be bright or matte depending on coating processes and the base metal finish shall have a smooth finish with grit lines. Chemical treatments for tin plate shall be cathodic sodium dichromate (CDC) treatment or sodium dichromate dip (SDCD/SDD) treatment. Electrolytic tin plate is furnished with an oil film applied to both surfaces.
SCOPE
1.1 This specification covers double-reduced electrolytic tin plate produced from low-carbon cold-reduced steel furnished in coils and cut sizes for use predominately in the manufacture of cans. 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 A626) which is supplied in thicknesses from 0.0050 to 0.0118 in. or SI units [as A626M] which is supplied in thicknesses from 0.127 to 0.300 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: A626/A626M −13
Standard Specification for
1
Tin Mill Products, Electrolytic Tin Plate, Double Reduced
This standard is issued under the fixed designationA626/A626M; 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 double-reduced electrolytic tin
B339 Specification for Pig Tin
plate produced from low-carbon cold-reduced steel furnished
in coils and cut sizes for use predominately in the manufacture
3. Ordering Information
of cans. It is furnished in commercially available tin coating
weights [masses] and is normally supplied with a trimmed 3.1 Orders for product under this specification shall include
the following information, as required and applicable, to
edge.
describe adequately the desired product:
1.2 This specification is applicable to orders in either
3.1.1 Name of product (double-reduced electrolytic tin
inch-pound units (as A626) which is supplied in thicknesses
plate) (Section 1),
from 0.0050 to 0.0118 in. or SI units [as A626M] which is
3.1.2 Tincoatingweight[mass]designation,andmarking,if
supplied in thicknesses from 0.127 to 0.300 mm.
any (Section 5, Table 1, and Fig 1 and 2),
1.3 The values stated in either inch-pound or SI units are to
3.1.3 Surface appearance and finish (Section 6),
be regarded as standard.Within the text, the SI units are shown
3.1.4 Chemical treatment (Section 7),
in brackets. The values stated in each system are not exact
3.1.5 Oiling (Section 8),
equivalents. Therefore, each system must be used indepen-
3.1.6 Thickness (Specification A623 [A623M]) (consistent
dently of the other. Combining values from the two systems
with the intended application),
may result in nonconformance with this specification. 1
3.1.7 Coilwidthorcutsizeinincrementsof ⁄16in.or1mm,
1.4 This standard does not purport to address all of the 3.1.8 Due to the very distinct directional properties, rolling
direction must be specified on cut sizes by underlining the slit
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- (rolling width) dimension (Section 4) (consistent with the
priate safety and health practices and determine the applica- intended application),
bility of regulatory limitations prior to use. 3.1.9 Steel type (Specification A623 [A623M]),
3.1.10 Mechanical requirement designation (Specification
2. Referenced Documents A623 [A623M]) (consistent with the intended application),
2 3.1.11 Intended application,
2.1 ASTM Standards:
3.1.12 Quantity in base boxes SITAs (see Note 4),
A623 Specification for Tin Mill Products, General Require-
3.1.13 On coils, specify minimum or range of acceptable
ments
inside diameters. The standard inside diameter is approxi-
A623M Specification for Tin Mill Products, General Re-
mately 16 in. if ordered to Specification A626 [410 mm if
quirements [Metric]
ordered to Specification A626M]. Coils should be specified to
A630 Test Methods for Determination of Tin Coating
a maximum coil weight if ordered to Specification A626 [mass
Weights for Electrolytic Tin Plate
if ordered to Specification A626M] or maximum outside
diameter, or both,
3.1.14 Packaging,
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
3.1.15 Special requirements, where applicable (J = plate or
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
K = plate), and
A01.20 on Tin Mill Products.
Current edition approved Oct. 1, 2013. Published October 2013. Originally 3.1.16 ASTM specification number and year of issue.
ε1
approved in 1968. Last previous edition approved in 2008 as A626/A626M - 08 .
NOTE 1—Atypical ordering description is as follows: 1000 base boxes,
DOI: 10.1520/A0626_A0626M-13.
2
double-reduced electrolytic tin plate, D50/25, melted, CDC, ATBC,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
0.0066-in. thickness, 30 by coil, MR, DR-8 CA, for 307 by 401 welded
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 can bodies in accordance with Specification A626/A626M - XX. [250
the ASTM website. SITAs, double-reduced electrolytic tin plate, D 5.6 ⁄2.8, melted, CDC,
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,
...
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: A626/A626M − 03 (Reapproved 2008) A626/A626M − 13
Standard Specification for
1
Tin Mill Products, Electrolytic Tin Plate, Double Reduced
This standard is issued under the fixed designation A626/A626M; 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 and 5.1.2 in October 2008.
1. Scope*
1.1 This specification covers double-reduced electrolytic tin plate produced from low-carbon cold-reduced steel furnished in
coils and cut sizes for use predominately in the manufacture of cans. 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 A626) which is supplied in thicknesses from 0.0050
to 0.0118 in. or SI units [as A626M] which is supplied in thicknesses from 0.127 to 0.300 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 (double-reduced electrolytic tin plate) (Section 1),
3.1.2 Tin coating weight [mass] designation, and marking, if any (Section 5, Table 1, Table 1, and Fig. 1Fig 1 and Fig. 2),2),
3.1.3 Surface appearance and finish (Section 6),
3.1.4 Chemical treatment (Section 7),
3.1.5 Oiling (Section 8),
3.1.6 Thickness (Specification A623 [A623M]) (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 Due to the very distinct directional properties, rolling direction must be specified on cut sizes by underlining the slit
(rolling width) dimension (Section 4) (consistent with the intended application),
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 20032008 as
ε1
A626/A626M - 03.A626/A626M - 08 . DOI: 10.1520/A0626_A0626M-03R08E01.10.1520/A0626_A0626M-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
1
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A626/A626M − 13
TABLE 1 Electrolytic Tin Plate Coating Weight [Mass]
NOTE 1—Listed as follows 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 Coating
Weight [Mass] each Weight [Mass] each Sur-
Designation No.
Surface, lb/base box [g/ face Test Value, lb/base
2 A 2
m ] box
...
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