ASTM A66-07

Standard Specification for Steel Screw Spikes

ABSTRACT
This specification deals with steel screw spikes used as fastenings between railroad rails, tie plates, and ties. The steel shall be made by electric-furnace or basic-oxygen, may be cast by continuous process or in ingots, and the heads and threads of the spikes may be formed by hot- or cold-forming methods. Tension and bend tests of the material shall be made. Inspection, certification, and product marking are also covered.
SCOPE
1.1 This specification covers steel screw spikes used as fastenings between railroad rails, tie plates, and ties.
1.2 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.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2007
• 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

• Replaces: ASTM A66-01 - Standard Specification for Steel Screw Spikes
• Effective Date: 01-May-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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:A66 −07
StandardSpecification for
1
Steel Screw Spikes
This standard is issued under the fixed designationA66; 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.
1. Scope* 4. Manufacture
1.1 This specification covers steel screw spikes used as
4.1 The steel shall be made by any of the following
fastenings between railroad rails, tie plates, and ties.
processes: electric-furnace or basic-oxygen.
1.2 The values stated in inch-pound units are to be regarded
4.2 The steel may be cast by a continuous process, or in
as standard. The values given in parentheses are mathematical
ingots.
conversions to SI units that are provided for information only
4.3 The heads and threads of the spikes may be formed by
and are not considered standard.
hot- or cold-forming methods.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Mechanical Requirements
responsibility of the user of this standard to establish appro-
5.1 Tensile Requirements:
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5.1.1 The material as represented by a tension test of a
full-size finished spike, or a specimen machined from a
2. Referenced Documents finished spike, shall conform to the requirements prescribed in
2
Table 1.
2.1 ASTM Standards:
5.1.2 Tension tests of full-size spikes shall be performed
A370 Test Methods and Definitions for Mechanical Testing
using a 10° wedge as described in Test Methods A370,
of Steel Products
Supplement S11.1.5.
A700 Practices for Packaging, Marking, and Loading Meth-
5.1.3 Where the design of the spike is such that full-size
ods for Steel Products for Shipment
testing is impracticable, the tension test may be made on a
specimen machined from a finished spike. Dimensions of the
3. Ordering Information
test specimen shall conform to the requirements of Test
3.1 Orders for screw spikes under this specification shall
Methods A370.
include the following information as appropriate:
5.1.4 When a machined specimen test is performed, the
3.1.1 Quantity (weight),
3
elongation requirement prescribed in Table 1 shall apply. If a
3.1.2 Style of Head—A, B, or C or other, including draw-
screw spike is machined and the specimen is tested and
ings if necessary,
reported. the elongation meets or exceeds 18 %, the bend test
3.1.3 Type of Point—pilot point or not pointed,
is not required. See 5.2.
3.1.4 Dimensions—diameter and length, under head,
5.1.5 The yield point shall be determined by the drop of the
3.1.5 Supplementary Requirement if to apply (see S1)
beam or halt in the gage of the testing machine.
3.1.6 Certification and Test Report (see 11.1).
5.2 Bend Requirement—The body of a full-size finished
spike shall withstand the bend test described in Table 2 without
1 cracking on the outside of the bent portion.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.01 on Steel Rails and Accessories.
6. Dimensions and Permissible Variations
Current edition approved May 1, 2007. Published May 2007. Originally
approved in 1916. Last previous edition approved in 2001 as A66 – 01. DOI:
6.1 The finished spikes shall conform to the dimensions
10.1520/A0066-07.
specified by the purchaser, subject to the permissible variations
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
prescribed in Table 3.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
6.2 The threads shall be sharp and true to gage and of the
the ASTM website.
3
Consult manufacturer’s literature for design details forA, B, and C-style heads. design specified by the purchaser.
*A Summary 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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A66−07
TABLE 1 Tension Test Requirements
unnecessarily with the manufacturer’s operations.All tests and
Specimen inspections shall be made at the place of manufacture, unless
Full size Machined otherwise agreed upon.
Tensile strength, min, psi (MPa) 60 000 60 000
(415) (415)
10. Rejection and Rehearing
Yield point, min 30 000 30 000
(205) (250)
10.1 Material that fails to conform to the requirements of
Elongation in 2 in. or 50 m
...