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ASTM A626.pdf
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ASTM A626.pdf
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Designation: A 626/A 626M – 03
Standard Specification for
Tin Mill Products, Electrolytic Tin Plate, Double Reduced
1
This standard is issued under the fixed designation A 626/A 626M; 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*
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 A 626) which is supplied in thicknesses
from 0.0050 to 0.0118 in. or SI units [as A 626M] 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 indepen-
dently 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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
2
A 623 Specification for Tin Mill Products, General Require-
ments
A 623M Specification for Tin Mill Products, General Re-
quirements [Metric]
A 630 Test Methods for Determination of Tin Coating
Weights for Hot-Dip and Electrolytic Tin Plate
A 754 Test Method for Coating Thickness by X-Ray Fluo-
rescence
B 339 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, and Fig. 1 and Fig. 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 A 623 [A 623M]) (consistent
with the intended application),
3.1.7 Coil width or cut size in increments of
1
⁄
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 A 623 [A 623M]),
3.1.10 Mechanical requirement designation (Specification
A 623 [A 623M]) (consistent with the intended application),
3.1.11 Intended application,
3.1.12 Quantity in base boxes SITAS (see Note 4),
3.1.13 On coils, specify minimum or range of acceptable
inside diameters. The standard inside diameter is approxi-
mately 16 in. if ordered to Specification A 626 [410 mm if
ordered to Specification A 626M]. Coils should be specified to
a maximum coil weight if ordered to SpecificationA 626 [mass
if ordered to Specification A 626M] or maximum outside
diameter, or both,
3.1.14 Packaging,
3.1.15 Special requirements, where applicable (J = plate or
K = plate), and
3.1.16 ASTM specification number and year of issue.
NOTE 1—A typical ordering description is as follows: 1000 base boxes,
double-reduced electrolytic tin plate, D 50/25, melted, CDC, DOS,
0.0066-in. thickness, 30 by coil, MR, DR-8 CA, for 307 by 401 welded
can bodies in accordance with Specification A 626/A 626M - XX. [250
SITAS, double-reduced electrolytic tin plate, D 5.6/2.8, melted, CDC,
DOS, 0.17-mm thickness, 760 by coil, MR, DR-8, for 99 by 105 mm
welded can bodies to Specification A 626/A 626M - XX.]
N
OTE 2—A typical ordering description for cut sizes is as follows: 500
base boxes, single reduced electrolytic tin plate, No. 25, DOS, MR, T-2
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.20 on Tin Mill Products.
Current edition approved October 1, 2003. Published December 2003. Originally
approved in 1968. Last previous edition approved in 1998 as A 626/A 626M - 98.
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.
1
*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.
Copyright ASTM International
Reproduced by IHS under license with ASTM
Not for Resale
No reproduction or networking permitted without license from IHS
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