ASTM A551/A551M-08(2013)

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 A788/A788M, 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 SI units or inch-pound units are to be regarded separately as standard. Within the text and tables the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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: 31-Mar-2013
• 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-08 - Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
• Effective Date: 01-Apr-2013
• Referred By: ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
• Effective Date: 01-Apr-2013

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:A551/A551M −08 (Reapproved 2013)
Standard Specification for
Carbon Steel Tires for Railway and Rapid Transit
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
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-
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 ClassCHT—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 SI units or inch-pound units
3.2.3 Intended service, and
are to be regarded separately as standard. Within the text and
tables the SI units are shown in brackets. The values stated in 3.2.4 Chemical composition requirements, if different from
each system may not be exact equivalents; therefore each those given in Table 1.
system shall be used independently of the other. Combining
values from the two systems may result in nonconformance
4. Chemical Requirements
with the standard.
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 [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 April 1, 2013. Published April 2013. Originally the ASTM website.
approved in 1965 to replace Specifications A26 and A329. Last previous edition Available from Association of American Railroads (AAR), 425 Third St., SW,
approved in 2008 as A551/A551M – 08. DOI: 10.1520/A0551_A0551M-08R13. Washington, DC 20024, http://www.aar.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A551/A551M−08 (2013)
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 0.35
Aluminum, max 0.060 0.060 0.060
Titanium, max 0.03 0.03 0.03
Columbium, max (Niobium) 0.05 0.05 0.05
A
The manufacturer may exceed the noted maximum limits for nickel, chromium, molybdenum, or vanadium provided that the following relationship (AAR M-107/M-208)
is met:
9302 5703%C 2 803%Mn 2 203%Si 2 503%Cr 2 303%Ni 2 203 %Mo1%V .390
f g f g f g f g f g f s dg
4.1.1 Thepurchasermayusetheproductanalysisprovisions for individual hardness measurement. Those meeting the hard-
ofSpecificationA788/A788Mfortiresproducedtotherequire- ness requirements of 6.1.1 shall be accepted.
ments of Table 1. By agreement with the manufacturer, these
7. Reheat Treatment
provisions may be used also when the provisions of 3.2.4
apply.
7.1 The heat treatment of any tires failing to meet the
specified hardness may be repeated in accordance with 5.3.1
5. Manufacture
and retested in accordance with Section 6.
5.1 Discard—Sufficient discard shall be made from each
8. Mating
ingot to assure freedom from piping and undue
...