ASTM A551/A551M-05

Standard Specification for Steel Tires

SCOPE
1.1 This specification covers seven classes of carbon steel tires for railway and rapid transit use.
1.1.1 Class AFor untreated driving tires for locomotives in passenger service.
1.1.2 Class AHTFor heat-treated driving tires for locomotives in passenger service.
1.1.3 Class BFor untreated driving tires for freight locomotives and tires for locomotive-truck, tender-truck, trailer and car wheels, and miscellaneous service.
1.1.4 Class BHTFor heat-treated driving tires for freight locomotives and tires for trailer wheels.
1.1.5 Class CFor untreated tires for switching locomotives.
1.1.6 Class CHTFor 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 DHTFor 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, 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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2005
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.06 - Steel Forgings and Billets

Relations

• Replaces: ASTM A551-94(1999) - Standard Specification for Steel Tires
• Effective Date: 01-Mar-2005
• Replaced By: ASTM A551/A551M-07 - Standard Specification for Carbon Steel Tires for Railway and Rapid Transit
• Effective Date: 01-Mar-2007
• Referred By: ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
• Effective Date: 01-Mar-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 551/A 551M – 05
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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers seven classes of carbon steel
tires for railway and rapid transit use. A 370 Test Methods and Definitions for MechanicalTesting
1.1.1 Class A—For untreated driving tires for locomotives of Steel Products
in passenger service. A 788 Specification for Steel Forgings, General Require-
1.1.2 ClassAHT—For heat-treated driving tires for locomo- ments
tives in passenger service.
3. Ordering Information and General Requirements
1.1.3 Class B—For untreated driving tires for freight loco-
3.1 Material supplied to this specification shall conform to
motives and tires for locomotive-truck, tender-truck, trailer and
car wheels, and miscellaneous service. the requirements of SpecificationA 788, which outlines order-
ing information, manufacturing requirements, testing and re-
1.1.4 Class BHT—For heat-treated driving tires for freight
locomotives and tires for trailer wheels. testing methods and procedures, marking, certification, product
analysis variations, and additional supplementary require-
1.1.5 Class C—For untreated tires for switching locomo-
tives. ments.
3.1.1 If the requirements of this specification are in conflict
1.1.6 ClassCHT—For heat-treated driving tires and switch-
ing locomotives and tires for locomotive-trucks, tender-trucks, with those of SpecificationA 788, then the requirements of this
specification shall prevail.
trailer and car wheels, and miscellaneous service.
1.1.7 Class DHT—For heat-treated driving tires for loco- 3.2 In addition to the ordering requirements from Specifi-
cation A 788, the following details should be supplied:
motives with light braking conditions, heavily loaded trailer
tires, and rapid transit wheels where off-tread brakes are 3.2.1 Full identification of tread and flange contour with
dimensional drawings as required,
employed.
3.2.2 Inside diameter to be rough machined or finished,
1.2 Supplementary requirements, including those in the
general requirements of Specification A 788, are provided for 3.2.3 Intended service, and
3.2.4 Chemical composition requirements, if different from
usewhenadditionaltestingorinspectionisdesired.Theseshall
apply only when specified individually by the purchaser in the those given in Table 1.
order.
4. Chemical Requirements
1.3 The values stated in either inch-pound or SI (metric)
4.1 Chemical Composition—The steel shall conform to the
units are to be regarded separately as standards.Within the text
requirements for chemical composition specified in Table 1,
and tables the SI units are shown in brackets. The values stated
unless otherwise required by the purchaser (see 3.2.4).
in each system are not exact equivalents; therefore each system
4.1.1 Thepurchasermayusetheproductanalysisprovisions
must be used independently of the other. Combining values
ofSpecificationA 788fortiresproducedtotherequirementsof
from the two systems may result in nonconformance with the
Table 1. By agreement with the manufacturer, these provisions
specification.
may be used also when the provisions of 3.2.4 apply.
1.4 Unless the order specifies the applicable “M” specifica-
tion designation, the tires shall be furnished to the inch-pound
5. Manufacture
units.
5.1 Discard—Sufficient discard shall be made from each
ingot to assure freedom from piping and undue segregation.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
2
A01.06 on Steel Forgings and Billets. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2005. Published March 2005. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1965 to replace Specifications A 26 and A 329. Last previous edition Standards volume information, refer to the standard’s Document Summary page on
approved in 1999 as A 551 – 94(1999). the ASTM website.
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A 551/A 551M – 05
TABLE 1 Chemical Requirements
8. Mating
Element Composition, %
8.1 The tires shall be grouped according to outside diameter
Carbon
and shipped in sets.
ClassesAandAHT 0.50–0.65
8.2 The
...