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ASTM A3-01(2006)

(Specification)

Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)

Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)

ABSTRACT
This specification covers steel joint bars of low-carbon, medium-carbon, and high-carbon grades (Grades 1, 2, and 3) for railway applications. Steel shall be made through basic-oxygen or electric-furnace processes and cast through continuous process or in ingots. An analysis of each heat or cast shall be made to determine the percentage compositions of carbon, manganese, phosphorus, and sulfur. Tension test shall also be made to conform to specified tensile strength and elongation values. Guidelines on the dimensions and physical variations of joint bars are given. Inspection, rejection, rehearing, certification, and product marking procedures are cited.
SCOPE
1.1 This specification covers steel joint bars for connecting steel rails in mine, industrial, and standard railroad track.
1.2 Three grades of joint bars are defined for applications where non-heat treated bars are suitable:
1.2.1 Grade 1, low-carbon, primarily for industrial and mine use.
1.2.2 Grade 2, medium-carbon, primarily for industrial and mine use.
1.2.3 Grade 3, high-carbon, for general use in standard railroad track. They may be used in the production of insulated track joints.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

Status
Historical
Publication Date
28-Feb-2006
ICS
77.140.70 - Steel profiles
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.01 - Steel Rails and Accessories
Current Stage
Ref Project

Relations

Replaces
ASTM A3-01 - Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)
Effective Date
01-Mar-2006
Replaced By
ASTM A3-01(2012) - Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)
Effective Date
01-Mar-2012

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ASTM A3-01(2006) - Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)ASTM A3-01(2006) - Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)
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ASTM A3-01(2006) - Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)
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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: A3 – 01 (Reapproved 2006)
Standard Specification for
Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-
Treated)
This standard is issued under the fixed designationA3; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
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.
TABLE 1 Chemical Requirements
1. Scope
1.1 This specification covers steel joint bars for connecting
Elements Composition, %
steel rails in mine, industrial, and standard railroad track.
Grade 1 Grade 2 Grade 3
1.2 Three grades of joint bars are defined for applications
Carbon, min . 0.30 0.45
where non-heat treated bars are suitable:
Phosphorus, max 0.05 0.05 0.04
1.2.1 Grade 1, low-carbon, primarily for industrial and mine
use.
1.2.2 Grade 2, medium-carbon, primarily for industrial and
TABLE 2 Product Analysis
mine use.
Allowance Beyond Limits of Specified Chemical
1.2.3 Grade 3, high-carbon, for general use in standard
Analysis
railroad track. They may be used in the production of insulated
Percent under Percent over
track joints.
min limit max limit
1.3 The values stated in inch-pound units are to be regarded
Carbon 0.04 0.04
as the standard. The values given in parentheses are for
Phosphorus . . . 0.008
information only.
2. Referenced Documents
3.1.5 Punching—type (elliptical, oval, round, or combina-
2.1 ASTM Standards:
tions), size, number, location, spacing, and elevation of
A370 Test Methods and Definitions for Mechanical Testing
punched holes, with dimensional drawing if necessary,
of Steel Products
3.1.6 Special Requirements—notching, shearing, bundling,
A700 PracticesforPackaging,Marking,andLoadingMeth-
etc., including details, and
ods for Steel Products for Shipment
3.1.7 Certification and Test Report Requirements—(Section
11).
3. Ordering Information
3.1 Orders for joint bars under this specification shall 4. Manufacture
include the following information as appropriate:
4.1 The steel shall be made by one or both of the following
3.1.1 Quantity—number of pairs of bars,
processes: basic-oxygen or electric-furnace.
3.1.2 Type—design or type bar along with section designa-
4.1.1 The steel may be cast by a continuous process, or in
tion and weight of rails being joined,
ingots.
3.1.3 Grade—in accordance with 1.2 and Table 1 and Table
4.2 Grade 2, medium-carbon, joint bars may be punched,
2,
slotted, and shaped in the case of special designs, either hot or
3.1.4 Dimension—overall length,
cold. Joint bars that are punched, slotted, or shaped cold shall
be subsequently annealed.
4.3 Grade 3, high-carbon, joint bars shall be uniformly
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
heated for punching, slotting, and shaping.
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, 2006. Published March 2006. Originally
5.1 The steel shall conform to the requirements as to
approved in 1901. Last previous edition approved in 2001 as A3 – 01. DOI:
10.1520/A0003-01R06.
chemical composition prescribed in Table 1.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 Heat or Cast Analysis—An analysis of each heat or cast
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shall be made by the manufacturer to determine the percent-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ages of carbon, manganese, phosphorus, and sulfur. The
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A3 – 01 (2006)
TABLE 3 Tensile Requirements
8. Workmanship, Finish, and Appearance
8.1 The joint bars shall be straight, subject to the variations
Grade 1 Grade 2 Grade 3
prescribed in 7.3, 7.4, and Table 4.
ksi MPa ksi MPa ksi MPa
8.2 The general appearance with respect to soundness and
Tensile strength, 55 380 68 470 85 585
surface finish shall be consistent with good commercial prac-
min
Elongation in 2 in. 22 20 15 tice as determined by visual inspection.
or 50 mm, min
9. Inspection
9.1 The manufacturer shall afford the purchaser’s inspector
all reasonable facilities necessary to satisfy that the material is
analysis shall be made from a test sample taken preferably
being produced and furnished in accordance with this specifi-
during the pouring of the heat or cast. The chemical composi-
cation. Mill inspection by the purchaser shall not interfere
tion thus determined shall conform to the requirement in Table
unnecessarily with the manufacturer’s operations.All tests and
1. Manganese and sulfur determinations are for information
inspections shall be made at the place of manufacture, unless
only.
otherwise agreed upon.
5.3 Product Analysis—When ladle tests are not available,
10. Rejection and Rehearing
finished material representing the heat may be product tested.
The product analysis allowance beyond the limits of the
10.1 Material that fails to conform to the requirements of
specified ladle analysis shall be within the limits for product
this specification may be rejected. Rejections shall be reported
analyses specified in Table 2.
tothemanufacturerorsupplierpromptlyandinwriting.Incase
5.3.1 An analysis may be made by the purchaser from a
of dissatisfaction with the test results, the manufacturer or
sampletakenfromafinishedjointbarrepresentingeachheator supplier may make claim for a rehearing.
cast. The chemical composi
...

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1.2 Three grades of joint bars are defined for applications where non-heat treated bars are suitable:  
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1.2.2 Grade 2, medium-carbon, primarily for industrial and mine use.  
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1.3 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.  
1.4 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.

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