ASTM A657/A657M-13
(Specification)Standard Specification for Tin Mill Products, Black Plate Electrolytic Chromium-Coated, Single and Double Reduced
Standard Specification for Tin Mill Products, Black Plate Electrolytic Chromium-Coated, Single and Double Reduced
ABSTRACT
This specification covers single- and double-reduced tin mill black plate electrolytically coated with chromium and chromium oxide. The steel shall be furnished in coils and cut lengths for use in manufacture of cans, closures, crowns, and other products. The weights of the total coating which is made up of chromium metal and chromium oxides shall be determined. Single-reduced base steels shall be produced with ground roll finishes (type 7B-A for smooth finish containing fine grit lines and type 7C-A for smooth finish with grit lines), and shot-blasted and/or textured roll finishes (type 5C-A for shot-blasted finish for general applications and type 5D-A for special applications). Double-reduced base steels shall be produced only with ground roll finishes of type 7C-A. The steels shall be furnished with extremely thin oil film on both surfaces.
SCOPE
1.1 This specification covers single- and double-reduced tin mill black plate electrolytically coated with chromium and chromium oxide. The steel is furnished in coils and cut lengths for use in the manufacture of cans, closures, crowns, and other products.
1.2 This specification is applicable to orders in either inch-pound units (as A657) which is supplied in thicknesses from 0.0050 to 0.0149 in. or in SI units [as A657M] which is supplied in thicknesses from 0.127 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: A657/A657M −13
Standard Specification for
Tin Mill Products, Black Plate Electrolytic Chromium-
1
Coated, Single and Double Reduced
This standard is issued under the fixed designationA657/A657M; 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.
1. Scope* 3. Ordering Information
1.1 This specification covers single- and double-reduced tin
3.1 Orders for product under this specification shall include
mill black plate electrolytically coated with chromium and
the following information, as required and applicable, to
chromium oxide. The steel is furnished in coils and cut lengths
adequately describe the desired product:
for use in the manufacture of cans, closures, crowns, and other
3.1.1 Name of product (include whether single- or double-
products.
reduced),
3.1.2 Thickness (must be consistent with intended
1.2 This specification is applicable to orders in either
application),
inch-pound units (as A657) which is supplied in thicknesses
3.1.3 Oiling (Section 6),
from 0.0050 to 0.0149 in. or in SI units [as A657M] which is
supplied in thicknesses from 0.127 to 0.378 mm. 3.1.4 Steel type (MR, L, etc.),
3.1.5 Temper designation (T-3, T-4, etc. for single-reduced)
1.3 The values stated in either inch-pound or SI units are to
or mechanical designation (DR-8, DR-9, etc., double-reduced),
be regarded as standard.Within the text, the SI units are shown
3.1.6 Surface finish (7B, 7C, etc.).
in brackets. The values stated in each system are not exact
3.1.7 Coil width or cut size,
equivalents. Therefore, each system must be used indepen-
3.1.8 Rolling direction must be specified on cut sizes and
dently of the other. Combining values from the two systems
should be indicated by underlining the slit (rolling width)
may result in nonconformance with this specification.
dimension,
1.4 This standard does not purport to address all of the
3.1.9 On coils, specify minimum or range of acceptable
safety concerns, if any, associated with its use. It is the
inside diameters. The standard inside diameter is approxi-
responsibility of the user of this standard to establish appro-
mately 16 in. if ordered as Specification A657 [410 mm if
priate safety and health practices and determine the applica-
ordered as Specification A657M]. Coils should be specified to
bility of regulatory limitations prior to use.
a maximum coil weight if ordered as Specification A657 [mass
if ordered as Specification A657M], or maximum outside
2. Referenced Documents
diameter, or both.
2
2.1 ASTM Standards:
3.1.10 Packaging,
A623 Specification for Tin Mill Products, General Require-
3.1.11 Special requirements where applicable, and,
ments
3.1.12 ASTM specification designation and year of issue.
A623M Specification for Tin Mill Products, General Re-
quirements [Metric]
NOTE 1—A typical ordering description for coils is as follows: 1250
A700 Guide for Packaging, Marking, and Loading Methods
base boxes, single reduced, black plate electrolytic chromium coated,
3
BSO, (0.0093 in.) MR,T-3 BA, 35 ⁄8 in. by coil, 16 in. inside diameter, 59
for Steel Products for Shipment
in. maximum outside diameter, 25 000 lb maximum coil weight, for
D1125 Test Methods for Electrical Conductivity and Resis-
regular crowns in accordance with Specification A657/A657M - XX. [250
tivity of Water
SITAs, single reduced, black plate electrolytic chromium coated, BSO,
0.235 mm thickness, MR, T-3 BA, 513, 900 mm by coil, 410 mm inside
diameter, 1500 mm maximum outside diameter, 11 500 kg maximum coil
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
mass for regular crowns in accordance with Specification A657/
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
A657M - XX].
A01.20 on Tin Mill Products.
Current edition approved Oct. 1, 2013. Published October 2013. Originally
NOTE 2—Atypical ordering description of cut sizes is as follows: 1000
approved in 1972. Last previous edition approved in 2008 as A657/
ε1
base boxes, double reduced black plated electrolytic chromium coated,
A657M – 03(2008) . DOI: 10.1520/A0657_A0657M-13.
2
BSC, 0.0061 in., MR, DR8 CA, 31 by 32 in., for cap closures in
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
accordance with Specification A657/A657M - XX. [200 SITAs, double
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 reduced, black plate electrolytic chromium coated, BSO, 0.155 mm
the ASTM website. thickness,MR,DR8CA,788by813mm,capclosuresinaccordancewith
*A Summary of Chan
...
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: A657/A657M − 03 (Reapproved 2008) A657/A657M − 13
Standard Specification for
Tin Mill Products, Black Plate Electrolytic Chromium-
1
Coated, Single and Double Reduced
This standard is issued under the fixed designation A657/A657M; 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.
1
ε NOTE—Editorial changes made to Note 1 and Note 2 in October 2008.
1. Scope*
1.1 This specification covers single- and double-reduced tin mill black plate electrolytically coated with chromium and
chromium oxide. The steel is furnished in coils and cut lengths for use in the manufacture of cans, closures, crowns, and other
products.
1.2 This specification is applicable to orders in either inch-pound units (as A657) which is supplied in thicknesses from 0.0050
to 0.0149 in. or in SI units [as A657M] which is supplied in thicknesses from 0.127 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]
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
D1125 Test Methods for Electrical Conductivity and Resistivity of Water
3. Ordering Information
3.1 Orders for product under this specification shall include the following information, as required and applicable, to adequately
describe the desired product:
3.1.1 Name of product (include whether single- or double-reduced),
3.1.2 Thickness (must be consistent with intended application),
3.1.3 Oiling (Section 6),
3.1.4 Steel type (MR, L, etc.),
3.1.5 Temper designation (T-3, T-4, etc. for single-reduced) or mechanical designation (DR-8, DR-9, etc., double-reduced),
3.1.6 Surface finish (7B, 7C, etc.).
3.1.7 Coil width or cut size,
3.1.8 Rolling direction must be specified on cut sizes and should be indicated by underlining the slit (rolling width) dimension,
3.1.9 On coils, specify minimum or range of acceptable inside diameters. The standard inside diameter is approximately 16 in.
if ordered as Specification A657 [410 mm if ordered as Specification A657M]. Coils should be specified to a maximum coil weight
if ordered as Specification A657 [mass if ordered as Specification A657M], or maximum outside diameter, or both.
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 1972. Last previous edition approved in 20032008 as
ε1
A657/A657M – 03.A657/A657M – 03(2008) . DOI: 10.1520/A0657_A0657M-03R08E01.10.1520/A0657_A0657M-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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A657/A657M − 13
3.1.10 Packaging,
3.1.11 Special requirements where applicable, and,
3.1.12 ASTM specification designation and year of issue.
NOTE 1—A typical ordering description for coils is as follows: 1250 base boxes, single reduced, black plate electrolytic chromium coated, DOS,BSO,
3
(0.0093 in.) MR, T-3 BA, 35 ⁄8 in. by coil, 16 in. inside diameter, 59 in. maximum outside diameter, 25 000 lb maximum coil weight, for regular crowns
in accordance with Specific
...
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