ASTM A183-14(2020)

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 Heat-treated bolts for general track use.  
1.3 Medium carbon nuts 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.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 29-Feb-2020
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.01 - Steel Rails and Accessories

Relations

• Refers: ASTM A700-14(2019) - Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
• Effective Date: 01-Nov-2019
• Refers: ASTM F606/F606M-16 - Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
• Effective Date: 01-Sep-2016
• Refers: ASTM A700-14 - Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
• Effective Date: 01-Nov-2014
• Refers: ASTM F606/F606M-14a - Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
• Effective Date: 01-Nov-2014
• Refers: ASTM A700-05 - Standard Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment (Withdrawn 2014)
• Effective Date: 01-Sep-2005
• Refers: ASTM A700-99e1 - Standard Practices for Packaging, Marking, and Loading Methods for Steel Products for Domestic Shipment
• Effective Date: 10-Nov-1999

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A183 −14 (Reapproved 2020)
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 U.S. 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 Heat-treated bolts for general track use.
3. Ordering Information
1.3 Medium carbon nuts for general application on track
3.1 Orders for track bolts and nuts under this specification
bolts.
shall include the following information:
1.4 The values stated in inch-pound units are to be regarded 3.1.1 Quantity of bolts and nuts (weights),
3.1.2 ASTM designation and date of issue,
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only 3.1.3 Design of bolt: oval or elliptical neck (see 2.3),
3.1.4 Dimensions of bolt: nominal diameter and length
and are not considered standard.
under head,
1.5 This international standard was developed in accor-
3.1.5 Nominalsizeofnut,thickness,andchamferangle(see
dance with internationally recognized principles on standard-
2.3),
ization established in the Decision on Principles for the
3.1.6 Thread fit of nuts on bolts: free or wrench-turn fit (see
Development of International Standards, Guides and Recom-
2.2), and
mendations issued by the World Trade Organization Technical
3.1.7 Certification or test reports, if required (see Section
Barriers to Trade (TBT) Committee.
12).
2. Referenced Documents
4. Manufacture
2.1 ASTM Standards:
4.1 The steel shall be made by the open-hearth, basic-
A700 Guide for Packaging, Marking, and Loading Methods
oxygen, or electric-furnace process, and may be either continu-
for Steel Products for Shipment
ous strand or ingot cast.
F606/F606M Test Methods for Determining the Mechanical
Properties of Externally and Internally Threaded
4.2 Bolts, including the head and oval or elliptical neck,
Fasteners, Washers, Direct Tension Indicators, and Rivets
may be produced by hot or cold forging at the option of the
manufacturer.
2.2 ASME Standards:
B1.1 Unified Inch Screw Threads
4.3 Bolt threads may be machine cut or hot- or cold-rolled
B18.10 Track Bolts and Nuts
at the option of the manufacturer.
4.4 Bolts shall be heat-treated by quenching in a liquid
medium from above the austenitizing temperature, and tem-
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
pering at a temperature not less than 750°F (399°C).
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.01 on Steel Rails and Accessories.
5. Chemical Requirements
Current edition approved March 1, 2020. Published March 2020. Originally
approved in 1935 to replace A50, A51. Combined with A76 in 1980. Last previous
5.1 Thesteelshallconformtotherequirementsforchemical
edition approved in 2014 as A183 – 14. DOI: 10.1520/A0183-14R20.
2 composition specified in Table 1.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
Available from American Society of Mechanical Engineers (ASME), ASME Available from the American Railway Engineering and Maintenance-of-Way
International Headquarters, Two Park Ave., New York, NY 10016-5990, http:// Association (AREMA), 10003 Derekwood Lane, Suite 210 Lanham, MD 20706,
www.asme.org. http://www.arema.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A183 − 14 (2020)
TABLE 1 Chemical Requirements
Bolts Nuts
Element, %
Heat-Cast Heat-Cast
Carbon, min or range 0.28–0.55 0.30–0.55
Phosphorus, max 0.030 0.04
Sulfur, max 0.050 0.06
TABLE 2 Full-Section Tension Test Requirements
2 2
Nominal Bolt Size, in. (mm) Threads per Inch Stress Area, in. (cm ) Minimum Full-Section Test Load, lbf (kN)
⁄8 (22.2) 9 0.462 (2.98) 50 800 (226)
⁄16 (23.8) 9 0.540 (3.48) 59 400 (264)
1 (25.4) 8 0.606 (3.96) 66 600 (296)
1- ⁄16 (27.0) 8 0.695 (4.48) 76 400 (340)
1- ⁄8 (28.6) 7 0.763 (4.92) 83 900 (373)
TABLE 3 Reduced-Section Tension Test Requirements
6.3 Retests:
Property Minimum Requirement 6.3.1 Bolts—If the result of the full-section or reduced-
Tensile strength, psi (MPa) 110 000 (760) section tension tests of any lot does not conform to the
Yield point, psi (MPa) 80 000 (550)
specified requirements, the manufacturer may re-heat treat
Elongation in 2 in. or 50 mm, % 12
such lot, not more than two times, in which case two additional
Reduction of area, % 25
full-section and two additional reduced-section tension tests
shall be made from the retreated lot. If all retest results
5.2 Heat or CastAnalysis—An analysis of each heat or cast
conform to the specified requirements, the lot shall be ac-
shall be made by the manufacturer to determine the percent-
cepted.
ages of the elements specified in Table 1. The analysis shall be
6.3.2 If the percentage of elongation of any reduced section
made from a test sample taken preferably during the pouring of
test specimen is less than that specified and any part of the
the heat. The chemical composition thus determined shall
fractureismorethan ⁄4in.(19mm)fromthecenterofthegage
conform to the heat-cast requirements of Table 1.
length, a retest shall be allowed.
6.3.3 If during the full-section tension test a flaw is detected
5.3 Product Analysis—An analysis may be made by the
in the bolt or nut that does not permit attainment of the test
purchaser from a finished bolt or nut. The chemical composi-
requirements, the manufacturer shall be permitted to conduct
tion thus determined shall conform to the product requirements
sorting or other reconditioning to eliminate the material con-
of Table 1. The phosphorous content thus determined shall not
taining that flaw, after which the test shall be repeated.
exceed that specified in Table 1 by more than 25 %. Note that
rephosphorized or resulfurized material is not subject to
7. Dimensions and Permissible Variations
rejection based on product analysis for these elements.
7.1 Track bolts manufactured in accordance with this speci-
6. Tensile Requirements
fication may have either oval or elliptical necks; the nuts may
be square or heavy square, with 25° chamfer
...