ASTM A551/A551M-07

Standard Specification for Carbon Steel Tires for Railway and Rapid Transit

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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2007
• 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/A551M-05 - Standard Specification for Steel Tires
• Effective Date: 01-Mar-2007
• Replaced By: ASTM A551/A551M-08 - Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
• Effective Date: 01-Mar-2008
• Referred By: ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
• Effective Date: 01-Mar-2007

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 – 07
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* 1.4 Unless the order specifies the applicable “M” specifica-
tion designation, the tires shall be furnished to the inch-pound
1.1 This specification covers seven classes of carbon steel
units.
tires for railway and rapid transit use.
1.1.1 Class A—For untreated driving tires for locomotives
2. Referenced Documents
in passenger service.
2
2.1 ASTM Standards:
1.1.2 ClassAHT—For heat-treated driving tires for locomo-
A 370 Test Methods and Definitions for MechanicalTesting
tives in passenger service.
of Steel Products
1.1.3 Class B—For untreated driving tires for freight loco-
A 788/A 788M Specification for Steel Forgings, General
motives and tires for locomotive-truck, tender-truck, trailer and
Requirements
car wheels, and miscellaneous service.
2.2 AAR Standard:
1.1.4 Class BHT—For heat-treated driving tires for freight
3
AAR M-107/M-208 Wheels, Carbon Steel
locomotives and tires for trailer wheels.
1.1.5 Class C—For untreated tires for switching locomo-
3. Ordering Information and General Requirements
tives.
3.1 Material supplied to this specification shall conform to
1.1.6 ClassCHT—For heat-treated driving tires and switch-
the requirements of Specification A 788/A 788M, which out-
ing locomotives and tires for locomotive-trucks, tender-trucks,
lines ordering information, manufacturing requirements, test-
trailer and car wheels, and miscellaneous service.
ing and retesting methods and procedures, marking, certifica-
1.1.7 Class DHT—For heat-treated driving tires for loco-
tion, product analysis variations, and additional supplementary
motives with light braking conditions, heavily loaded trailer
requirements.
tires, and rapid transit wheels where off-tread brakes are
3.1.1 If the requirements of this specification are in conflict
employed.
with those of Specification A 788/A 788M, then the require-
1.2 Supplementary requirements, including those in the
ments of this specification shall prevail.
general requirements of Specification A 788/A 788M, are pro-
3.2 In addition to the ordering requirements from Specifi-
vided for use when additional testing or inspection is desired.
cation A 788/A 788M, the following details should be sup-
These shall apply only when specified individually by the
plied:
purchaser in the order.
3.2.1 Full identification of tread and flange contour with
1.3 The values stated in either inch-pound or SI (metric)
dimensional drawings as required,
units are to be regarded separately as standards.Within the text
3.2.2 Inside diameter to be rough machined or finished,
and tables the SI units are shown in brackets. The values stated
3.2.3 Intended service, and
in each system are not exact equivalents; therefore each system
3.2.4 Chemical composition requirements, if different from
must be used independently of the other. Combining values
those given in Table 1.
from the two systems may result in nonconformance with the
specification.
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 [e-mail]. 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, 2007. Published March 2007. Originally the ASTM website.
3
approved in 1965 to replace Specifications A 26 and A 329. Last previous edition Available fromAssociation ofAmerican Railroads, 50 “F” St.,Washington, DC
approved in 2005 as A 551/A 551M – 05. 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.
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A 551/A 551M – 07
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
Silicon 0.15 – 1.00 0.15 – 1.00 0.15 – 1.00
A
Nickel, max 0.25 0.25 0.25
A
Chromium, max 0.25 0.25 0.25
A
Molybdenum, max 0.10 0.10 0.10
A
Vanadium, max 0.040 0.040 0.040
Copper, max 0.35 0.35 0.3
...