ASTM A183-03(2009)
(Specification)Standard Specification for Carbon Steel Track Bolts and Nuts
Standard Specification for Carbon Steel Track Bolts and Nuts
ABSTRACT
This specification covers carbon steel track bolts and carbon steel nuts for use in conjunction with joint bars to connect rails in railroad track. The required chemical composition for steel is presented in details. The full section and the reduced-section bolt tension tests requirements are specified as per reference materials.
SCOPE
1.1 This specification covers carbon steel track bolts and carbon steel nuts for use in conjunction with joint bars to connect rails in railroad track.
1.2 Two grades of track bolts are defined:
1.2.1 Grade 1, Low-Carbon, Untreated, primarily for industrial and mine track use.
1.2.2 Grade 2, Heat-Treated, for general track use.
1.3 Two grades of nuts are defined:
1.3.1 Grade 1, Low-Carbon or Soft Steel, primarily for application on Grade 1 track bolts.
1.3.2 Grade 2, Medium-Carbon, for general application on track bolts.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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Designation: A183 −03(Reapproved 2009)
Standard Specification for
Carbon Steel Track Bolts and Nuts
This standard is issued under the fixed designation A183; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2.3 AREMA Standard:
American Railway Engineering and Maintenance-of-Way
1.1 This specification covers carbon steel track bolts and
Association Manual, Design of Track Bolts and Nuts,
carbon steel nuts for use in conjunction with joint bars to
Chapter 4, Part 1
connect rails in railroad track.
1.2 Two grades of track bolts are defined:
3. Ordering Information
1.2.1 Grade1,Low-Carbon,Untreated, primarily for indus-
3.1 Orders for track bolts and nuts under this specification
trial and mine track use.
shall include the following information:
1.2.2 Grade 2, Heat-Treated, for general track use.
3.1.1 Quantity of bolts and nuts (weights),
1.3 Two grades of nuts are defined:
3.1.2 ASTM designation and date of issue,
1.3.1 Grade 1, Low-Carbon or Soft Steel, primarily for
3.1.3 Grade of bolt: 1, low-carbon untreated, or 2, heat-
application on Grade 1 track bolts.
treated (see 1.2 and Table 1),
1.3.2 Grade 2, Medium-Carbon, for general application on
3.1.4 Design of bolt: oval or elliptical neck (see 2.3),
track bolts.
3.1.5 Dimensions of bolt: nominal diameter and length
under head,
1.4 The values stated in inch-pound units are to be regarded
3.1.6 Gradeofnut:1,low-carbon,or2,medium-carbon(see
as standard. The values given in parentheses are mathematical
1.3 and Table 1 and Table 2),
conversions to SI units that are provided for information only
3.1.7 Nominal size of nut, thickness, and chamfer angle (see
and are not considered standard.
2.3),
2. Referenced Documents
3.1.8 Thread fit of nuts on bolts: free or wrench-turn fit (see
2.2), and
2.1 ASTM Standards:
3.1.9 Certification or test reports, if required (see Section
A700 Practices for Packaging, Marking, and Loading Meth-
12).
ods for Steel Products for Shipment
F606 Test Methods for Determining the Mechanical Proper-
4. Manufacture
ties of Externally and Internally Threaded Fasteners,
Washers, Direct Tension Indicators, and Rivets 4.1 The steel shall be made by the open-hearth, basic-
2.2 ANSI Standards:
oxygen, or electric-furnace process, and may be either continu-
B1.1 Unified Screw Threads ous strand or ingot cast.
B18.10 Track Bolts and Nuts
4.2 Bolts, including the head and oval or elliptical neck,
may be produced by hot or cold forging at the option of the
manufacturer.
4.3 Bolt threads may be machine cut or hot- or cold-rolled
1 at the option of the manufacturer.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
4.4 Grade 2 bolts shall be heat-treated by quenching in a
A01.01 on Steel Rails and Accessories.
liquid medium from above the austenitizing temperature, and
Current edition approved April 1, 2009. Published May 2009. Originally
approved in 1935 to replace A50, A51. Combined with A76 in 1980. Last previous tempering at a temperature not less than 750°F (399°C). Grade
edition approved in 2003 as A183 – 03. DOI: 10.1520/A0183-03R09.
1 bolts need not be heat-treated.
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. Available from the American Railway Engineering and Maintenance-of-Way
Available from American National Standards Institute (ANSI), 25 W. 43rd St., Association (AREMA), 10003 Derekwood Lane, Suite 210 Lanham, MD 20706,
4th Floor, New York, NY 10036, http://www.ansi.org. http://www.arema.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A183 − 03 (2009)
TABLE 1 Chemical Requirements
Bolts Nuts
Element, % Grade 1 Grade 2 Grade 1 Grade 2
Heat-Cast Product Heat-Cast Product Heat-Cast Product Heat-Cast Product
Carbon, min or range 0.15 0.13 0.30 0.27 0.15 0.13 0.40–0.55 0.37–0.58
A
Phosphorus, max 0.04 0.050 0.04 0.050 0.12 0.04 0.050
A A
Sulfur, max 0.33 0.06 0.070 0.33 0.06 0.070
A
Where rephosphorized or resulfurized material is applied, due to the degree to which phosphorus and sulfur segregate, check analyses for these elements are not
technologically appropriate.
TABLE 2 Nut Suitability TABLE 3 Required Tension Tests
Nut Grade Product Grade Full-Section Test of Reduced-Section Test
Low-Carbon Grade 1 Medium-Carbon Grade 2 Bolt with Nut Specimen
Assembled
Heavy Heavy
Square Square A B
Bolts 1 X NR
1 1
Regular Heavy ⁄8 in Heavy ⁄8 in A
Nuts 2 X X
Bolt Grade
Square Square Oversize Regular Square Oversize C
1X NA
25° 25° in Square 25° in
C
2X NA
Chamfer Chamfer Thickness Chamfer Thickness
A
X = required test. Test must be performed with 10° wedge under bolt head.
60° 60°
B
NR = test not required.
Chamfer Chamfer
C
A A A A A A
NA = test not applicable.
Grade 1 X X X X X X
A A A A
Grade 2 . . X X X X
A
X = suitable combination.
6.2 Number of Tests:
6.2.1 Grade 1 Bolts—One full-section tension test shall be
5. Requirements
made by the manufacturer from each lot of bolts. Each lot shall
5.1 Thesteelshallconformtotherequirementsforchemical
consist of not more than one heat of steel, nor be greater than
composition specified in Table 1.
10 tons (9.7 Mg).
5.2 Heat or CastAnalysis—An analysis of each heat or cast
6.2.2 Grade 2 Bolts—One full-section tension test and one
shall be made by the manufacturer to determine the percent- reduced-section tension test shall be made by the manufacturer
ages of the elements specified in Table 1. The analysis shall be
from each lot of bolts. Each lot shall consist of not more than
made from a test sample taken preferably during the pouring of one heat of steel, heat-treated in the same furnace load in a
the heat. The chemical composition thus determined shall
batch heat-treating operation or under the same conditions in a
conform to the heat-cast requirements of Table 1. continuous heat-treating operation, with no lot to exceed 10
tons (9.7 Mg).
5.3 Product Analysis—An analysis may be made by the
purchaser from a finished bolt or nut. The chemical composi- 6.3 Retests:
tion thus determined shall conform to the product requirements
6.3.1 Grade 1 Bolts—If the result of the full-section tension
of Table 1. Note that rephosphorized or resulfurized material is test of any lot does not conform to the specified requirement,
not subject to rejection based on product analysis for these
two bolts shall be selected from the same lot for tension tests.
elements. If the results of both tests conform to the specified require-
ments, the lot shall be accepted.
6. Tensile Requirements
6.3.2 Grade 2 Bolts—If the result of the full-section or
reduced-section tension tests of any lot does not conform to the
6.1 Tension Tests:
6.1.1 The material as represented by a tension test of a specified requirements, the manufacturer may re-heat treat
full-section bolt with nut assembled, or by a specimen ma- such lot, not more than two times, in which case two additional
chined from a finished bolt, as prescribed in Table 3, shall full-section and two additional reduced-section tension tests
conform to the respective requirements specified in Table 4 or shall be made from the retreated lot. If all retest results
Table 5. conform to the specified requirements, the lot shall be ac-
6.1.2 Full-section and reduced-section bolt tension tests cepted.
shall be performed as described in Test Methods F606. 6.3.3 If the percentage of elongation of any reduced section
6.1.3 Nutsshallbetestedbyassemblingthenutonthegrade test specimen is less than that specified and any part of the
bolt with which it is to be used, and testing as described under fractureismorethan ⁄4in.(19mm)fromthecenterofthegage
the full-section
...
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:A 183–98 Designation: A 183 – 03 (Reapproved 2009)
Standard Specification for
Carbon Steel Track Bolts and Nuts
This standard is issued under the fixed designation A 183; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This specification covers carbon steel track bolts and carbon steel nuts for use in conjunction with joint bars to connect rails
in railroad track.
1.2 Two grades of track bolts are defined:
1.2.1 Grade 1, Low-Carbon, Untreated , primarily for industrial and mine track use.
1.2.2 Grade 2, Heat-Treated, for general track use.
1.3 Two grades of nuts are defined:
1.3.1 Grade 1, Low-Carbon or Soft Steel, primarily for application on Grade 1 track bolts.
1.3.2 Grade 2, Medium-Carbon, for general application on track bolts.
1.4The values stated in inch-pound units are to be regarded as the standard.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents
2.1 ASTM Standards:
A 700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
F 606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
Direct Tension Indicators, and Rivets
2.2 ANSI Standards:
B1.1Unified Screw Threads
B18.10Track Bolts and Nuts
B1.1 Unified Screw Threads
B18.10 Track Bolts and Nuts
This specification is under the jurisdiction of ASTM Committee A-1 A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.01 on Steel Rails and Accessories.
Current edition approved May 10, 1998. Published September 1998. Originally published asA183 – 35 T to replaceA50,A51. Combined withA76 in 1980. Last previous
edition A183 – 83 (1990).
Current edition approved April 1, 2009. Published May 2009. Originally approved in 1935 to replace A 50, A 51. Combined with A 76 in 1980. Last previous edition
approved in 2003 as A 183 – 03.
Annual Book of ASTM Standards, Vol 15.08.
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.
Available from American National Standards Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 183 – 03 (2009)
2.3 AREA Standard:
American Railway Engineering Association Manual, Design of Track Bolts and Nuts, Chapter 4, Part 1
2.4 Federal Standard:
Fed. Std. No. 123Marking for Shipments (Civil Agencies)
2.5 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
5 4
MIL-STD-163Steel Mill Products, Preparation for Shipment and Storage AREMA Standard:
American Railway Engineering and Maintenance-of-WayAssociation Manual, Design ofTrack Bolts and Nuts, Chapter 4, Part
3. Ordering Information
3.1 Orders for track bolts and nuts under this specification shall include the following information:
3.1.1 Quantity of bolts and nuts (weights),
3.1.2 ASTM designation and date of issue,
3.1.3 Grade of bolt: 1, low-carbon untreated, or 2, heat-treated (see 1.2 and Table 1),
3.1.4 Design of bolt: oval or elliptical neck (see 2.3),
3.1.5 Dimensions of bolt: nominal diameter and length under head,
3.1.6 Grade of nut: 1, low-carbon, or 2, medium-carbon (see 1.3 and Table 1 and Table 2and Table 1),
3.1.7 Nominal size of nut, thickness, and chamfer angle (see 2.3),
3.1.8 Thread fit of nuts on bolts: free or wrench-turn fit (see 2.2), and
3.1.9 Certification or test reports, if required (see Section 12).
4. Manufacture
4.1 The steel shall be made by the open-hearth, basic-oxygen, or electric-furnace process, and may be either continuous strand
or ingot cast.
4.2 Bolts, including the head and oval or elliptical neck, may be produced by hot or cold forging at the option of the
manufacturer.
4.3 Bolt threads may be machine cut or hot- or cold-rolled at the option of the manufacturer.
4.4 Grade 2 bolts shall be heat-treated by quenching in a liquid medium from above the austenitizing temperature, and
tempering at a temperature not less than 750°F (399°C). Grade 1 bolts need not be heat-treated.
5.Chemical Requirements Chemical Requirements
5. Requirements
5.1 The steel shall conform to the requirements for chemical composition specified in Table 1.
5.2 Heat or Cast Analysis—An analysis of each heat or cast shall be made by the manufacturer to determine the percentages
of the elements specified inTable 1.The analysis shall be made from a test sample taken preferably during the pouring of the heat.
The chemical composition thus determined shall conform to the heat-cast requirements of Table 1.
5.3 Product Analysis—An analysis may be made by the purchaser from a finished bolt or nut. The chemical composition thus
determined shall conform to the product requirements of Table 1. Note that rephosphorized or resulfurized material is not subject
to rejection based on product analysis for these elements.
Available from the American Railway Engineering Assn., 2000 L St., N.W., Washington, DC 20036.
Available from the American Railway Engineering and Maintenance-of-Way Association (AREMA), 10003 Derekwood Lane, Suite 210 Lanham, MD 20706,
http://www.arema.org.
TABLE 1 Chemical Requirements
Bolts Nuts
Element, % Grade 1 Grade 2 Grade 1 Grade 2
Heat-Cast Product Heat-Cast Product Heat-Cast Product Heat-Cast Product
Carbon, min or range 0.15 0.13 0.30 0.27 0.15 0.13 0.40–0.55 0.37–0.58
A
Phosphorus, max 0.05 0.058 0.05 0.058 0.12 0.05 0.058
A
Phosphorus, max 0.04 0.050 0.04 0.050 0.12 0.04 0.050
A A
Sulfur, max 0.33 0.06 0.068 0.33 0.06 0.068
A A
Sulfur, max 0.33 0.06 0.070 0.33 0.06 0.070
A
Where rephosphorized or resulfurized material is applied, due to the degree to which phosphorus and sulfur segregate, check analyses for these elements are not
technologically appropriate.
A 183 – 03 (2009)
TABLE 2 Nut Suitability
Nut Grade
Low-Carbon Grade 1 Medium-Carbon Grade 2
Heavy Heavy
Square Square
1 1
Bolt Grade ⁄8 in ⁄8 in
Regular Heavy Heavy
Oversize Oversize
Square Square Regular Square
in in
25° 25° Square 25°
Thickness Thickness
Chamfer Chamfer Chamfer
60° 60°
Chamfer Chamfer
A A A A A A
Grade 1 X X X X X X
A A A A
Grade 2 . . X X X X
A
X = suitable combination.
6. Tensile Requirements
6.1 Tension Tests:
6.1.1 The material as represented by a tension test of a full-section bolt with nut assembled, or by a specimen machined from
a finished bolt, as prescribed in Table 3, shall conform to the respective requirements specified in Table 4 or Table 5.
6.1.2 Full-section and reduced-section bolt tension tests shall be performed as described in Test Methods F 606.
6.1.3 Nuts shall be tested by assembling the nut on the grade bolt with which it is to be used, and testing as described under
the full-section tension test for bolts in Test Methods F 606.
6.1.4 The bolt-nut assembly shall be capable of reaching the minimum load specified in Table 4 before failure of the assembly.
6.2 Number of Tests:
6.2.1 Grade 1 Bolts— One full-section tension test shall be made by the manufacturer from each lot of bolts. Each lot shall
consist of not more than one heat of steel, nor be greater than 10 tons (9.7 Mg).
6.2.2 Grade2Bolts—One full-section tension test and one reduced-section tension test shall be made by the manufacturer from
each lot of bolts. Each lot shall consist of not more than one heat of steel, heat-treated in the same furnace load in a batch
heat-treatingoperationorunderthesameconditionsinacontinuousheat-treatingoperation,withnolottoexceed10tons(9.7Mg).
6.3 Retests:
6.3.1 Grade 1 Bolts— If the result of the full-section tension test of any lot does not conform to the specified requirement, two
bolts shall be selected from the same lot for tension tests. If the results of both tests conform to the specified requirements, the lot
shall be accepted.
6.3.2 Grade2Bolts—If the result of the full-section or reduced-section tension tests of any lot does not conform to the specified
requirements, the manufacturer may re-heat treat such lot, not more than two times, in which case two additional full-section and
two additional reduced-section tension tests shall be made from the re
...
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