ASTM A551/A551M-08
(Specification)Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
ABSTRACT
This specification details the standard requirements for carbon steel tires for railway and rapid transit applications. The seven classes of steel tires covered here are: Class A-untreated driving tires for locomotives in passenger service; Class AHT-heat-treated driving tires for locomotives in passenger service; Class B-untreated driving tires for freight locomotives and tires for locomotive-truck, tender-truck, trailer and car wheels and miscellaneous service; Class BHT-heat-treated driving tires for freight locomotives and tires for trailer service; Class C-untreated tires for switching locomotives; Class CHT-heat-treated driving tires and switching locomotives and tires for locomotive-trucks, tender-trucks, trailer and car wheels, and miscellaneous service; and Class DHT-heat-treated driving tires for locomotives with light braking conditions, heavily loaded trailer tires, and rapid transit wheels where off-tread brakes are employed. Tires shall be tested and conform to required chemical composition and Brinell hardness values. Reheat treatment and retests may be done if any of the tires fail to meet the specified property values.
SCOPE
1.1 This specification covers seven classes of carbon steel tires for railway and rapid transit use.
1.1.1 Class A—For untreated driving tires for locomotives in passenger service.
1.1.2 Class AHT—For heat-treated driving tires for locomotives in passenger service.
1.1.3 Class B—For untreated driving tires for freight locomotives and tires for locomotive-truck, tender-truck, trailer and car wheels, and miscellaneous service.
1.1.4 Class BHT—For heat-treated driving tires for freight locomotives and tires for trailer wheels.
1.1.5 Class C—For untreated tires for switching locomotives.
1.1.6 Class CHT—For heat-treated driving tires and switching locomotives and tires for locomotive-trucks, tender-trucks, trailer and car wheels, and miscellaneous service.
1.1.7 Class DHT—For heat-treated driving tires for locomotives with light braking conditions, heavily loaded trailer tires, and rapid transit wheels where off-tread brakes are employed.
1.2 Supplementary requirements, including those in the general requirements of Specification A 788/A 788M, are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
1.3 The values stated in either inch-pound or SI (metric) units are to be regarded separately as standards. Within the text and tables 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 the specification.
1.4 Unless the order specifies the applicable “M” specification designation, the tires shall be furnished to the inch-pound units.
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Designation:A551/A551M −08
StandardSpecification for
Carbon Steel Tires for Railway and Rapid Transit
1
Applications
This standard is issued under the fixed designationA551/A551M; 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* 2. Referenced Documents
2
1.1 This specification covers seven classes of carbon steel
2.1 ASTM Standards:
tires for railway and rapid transit use.
A370 Test Methods and Definitions for Mechanical Testing
1.1.1 Class A—For untreated driving tires for locomotives
of Steel Products
in passenger service.
A788/A788M Specification for Steel Forgings, General Re-
1.1.2 ClassAHT—For heat-treated driving tires for locomo-
quirements
tives in passenger service.
2.2 AAR Standard:
1.1.3 Class B—For untreated driving tires for freight loco-
3
AAR M-107/M-208 Wheels, Carbon Steel
motives and tires for locomotive-truck, tender-truck, trailer and
car wheels, and miscellaneous service.
3. Ordering Information and General Requirements
1.1.4 Class BHT—For heat-treated driving tires for freight
locomotives and tires for trailer wheels.
3.1 Material supplied to this specification shall conform to
1.1.5 Class C—For untreated tires for switching locomo-
the requirements of Specification A788/A788M, which out-
tives.
lines ordering information, manufacturing requirements, test-
1.1.6 Class CHT—For heat-treated driving tires and switch-
ing and retesting methods and procedures, marking,
ing locomotives and tires for locomotive-trucks, tender-trucks,
certification,productanalysisvariations,andadditionalsupple-
trailer and car wheels, and miscellaneous service.
mentary requirements.
1.1.7 ClassDHT—For heat-treated driving tires for locomo-
3.1.1 If the requirements of this specification are in conflict
tives with light braking conditions, heavily loaded trailer tires,
with those of Specification A788/A788M, then the require-
and rapid transit wheels where off-tread brakes are employed.
ments of this specification shall prevail.
1.2 Supplementary requirements, including those in the
3.2 In addition to the ordering requirements from Specifi-
general requirements of Specification A788/A788M, are pro-
cation A788/A788M, the following details should be supplied:
vided for use when additional testing or inspection is desired.
3.2.1 Full identification of tread and flange contour with
These shall apply only when specified individually by the
dimensional drawings as required,
purchaser in the order.
3.2.2 Inside diameter to be rough machined or finished,
1.3 The values stated in either inch-pound or SI (metric)
3.2.3 Intended service, and
units are to be regarded separately as standards. Within the text
and tables the SI units are shown in brackets. The values stated 3.2.4 Chemical composition requirements, if different from
in each system are not exact equivalents; therefore each system those given in Table 1.
must be used independently of the other. Combining values
from the two systems may result in nonconformance with the
4. Chemical Requirements
specification.
4.1 Chemical Composition—The steel shall conform to the
1.4 Unless the order specifies the applicable “M” specifica-
requirements for chemical composition specified in Table 1,
tion designation, the tires shall be furnished to the inch-pound
unless otherwise required by the purchaser (see 3.2.4).
units.
1 2
This specification is under the jurisdiction of ASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.06 on Steel Forgings and Billets. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2008. Published March 2008. Originally the ASTM website.
3
approved in 1965 to replace Specifications A26 and A329. Last previous edition Available fromAssociation ofAmerican Railroads, 50 “F” St.,Washington, DC
approved in 2007 as A551/A551M – 07. DOI: 10.1520/A0551_A0551M-08. 20001.
*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
---------------------- Page: 1 ----------------------
A551/A551M−08
TABLE 1 Chemical Requirements
Element wt % Classes A and AHT Classes B and BHT Classes C, CHT, and DHT
Carbon 0.50 – 0.65 0.60 – 0.75 0.70 – 0.85
Manganese 0.60 – 0.90 0.60 – 0.90 0.60 – 0.90
Phosphorous, max 0.030 0.030 0.030
Sulfur 0.005 – 0.040 0.005 – 0.040 0.005 – 0.040
S
...
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.
Designation:A551/A551M–07 Designation: A 551/A 551M – 08
Standard Specification for
Carbon Steel Tires for Railway and Rapid Transit
1
Applications
This standard is issued under the fixed designationA 551/A 551M; 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.
1. Scope*
1.1 This specification covers seven classes of carbon steel tires for railway and rapid transit use.
1.1.1 Class A—For untreated driving tires for locomotives in passenger service.
1.1.2 Class AHT—For heat-treated driving tires for locomotives in passenger service.
1.1.3 Class B—For untreated driving tires for freight locomotives and tires for locomotive-truck, tender-truck, trailer and car
wheels, and miscellaneous service.
1.1.4 Class BHT—For heat-treated driving tires for freight locomotives and tires for trailer wheels.
1.1.5 Class C—For untreated tires for switching locomotives.
1.1.6 ClassCHT—Forheat-treateddrivingtiresandswitchinglocomotivesandtiresforlocomotive-trucks,tender-trucks,trailer
and car wheels, and miscellaneous service.
1.1.7 Class DHT—For heat-treated driving tires for locomotives with light braking conditions, heavily loaded trailer tires, and
rapid transit wheels where off-tread brakes are employed.
1.2 Supplementary requirements, including those in the general requirements of SpecificationA 788/A 788M, are provided for
use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the
order.
1.3 The values stated in either inch-pound or SI (metric) units are to be regarded separately as standards. Within the text and
tables 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 the specification.
1.4 Unless the order specifies the applicable “M” specification designation, the tires shall be furnished to the inch-pound units.
2. Referenced Documents
2
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 788/A 788M Specification for Steel Forgings, General Requirements
2.2 AAR Standard:
3
AAR M-107/M-208 Wheels, Carbon Steel
3. Ordering Information and General Requirements
3.1 Material supplied to this specification shall conform to the requirements of Specification A 788/A 788M, which outlines
ordering information, manufacturing requirements, testing and retesting methods and procedures, marking, certification, product
analysis variations, and additional supplementary requirements.
3.1.1 If the requirements of this specification are in conflict with those of Specification A 788/A 788M, then the requirements
of this specification shall prevail.
3.2 In addition to the ordering requirements from Specification A 788/A 788M, the following details should be supplied:
3.2.1 Full identification of tread and flange contour with dimensional drawings as required,
3.2.2 Inside diameter to be rough machined or finished,
3.2.3 Intended service, and
3.2.4 Chemical composition requirements, if different from those given in Table 1.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.06
on Steel Forgings and Billets.
Current edition approved March 1, 2007.2008. Published March 2007.2008. Originally approved in 1965 to replace Specifications A 26 and A 329. Last previous edition
approved in 20052007 as A 551/A 551M – 057.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Association of American Railroads, 50 “F” St., Washington, DC 20001.
*ASummary 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
---------------------- Page: 1 ----------------------
A 551/A 551M – 08
TABLE 1 Chemical Requirements
Element wt % Classes A and AHT Classes B and BHT Classes C, CHT, and DHT
Carbon 0.50 – 0.65 0.60 – 0.75 0.70 – 0.85
Manganese 0.60 – 0.90 0.60 – 0.90 0.60 – 0.90
Phosp
...
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