ASTM A499-89(2008)
(Specification)Standard Specification for Steel Bars and Shapes, Carbon Rolled from “T” Rails
Standard Specification for Steel Bars and Shapes, Carbon Rolled from <span class='unicode'>“</span>T<span class='unicode'>”</span> Rails
ABSTRACT
This specification covers the standard for carbon steel bars and shapes rolled from standard rail steel. The material shall be hot wrought from section T rails and shall be produced by hot forming slit railroad rail parts to yield straight lengths. One tension test and one hardness test shall be performed from each lot to determine the mechanical properties and shall conform to the requirement in tensile strength, elongation, Brinell hardness, and Rockwell B hardness.
SCOPE
1.1 This specification covers carbon steel bars and shapes produced from standard rail steel. These bars are furnished in the as-wrought condition intended for structural use, or bar and shape uses, where high tensile properties are applicable. These materials are available in two strength levels as Grades 50 and 60.
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.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:A499 −89(Reapproved 2008)
Standard Specification for
Steel Bars and Shapes, Carbon Rolled from “T” Rails
This standard is issued under the fixed designation A499; 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.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) Equal and UnequalAngles, ⁄4 to3in.(19.0to76mm)
7 3
length of legs and thickness ranging from ⁄64 to ⁄8 in. (2.8 to
1.1 This specification covers carbon steel bars and shapes
9.5 mm), inclusive.
produced from standard rail steel. These bars are furnished in
1 3 1 1 3
(2) Tees, 1 ⁄4,1 ⁄8,1 ⁄2 by ⁄8 and ⁄16 in. thickness (32,
theas-wroughtconditionintendedforstructuraluse,orbarand
35, 38 mm by 3.2 and 4.8 mm thickness).
shape uses, where high tensile properties are applicable.These
(3) Channels,1to2 ⁄2 in. (25 to 64 mm), inclusive, in
materials are available in two strength levels as Grades 50 and
depth and ⁄8 to 1 in. (9.5 to 25 mm), inclusive, in width of
60.
flange.
1.2 The values stated in inch-pound units are to be regarded
3.1.1.5 Special Bar Sections:
as standard. The values given in parentheses are mathematical
5 7
(1) Ovals, from ⁄8 to ⁄8 in. (15.9 to 22.2 mm) in longest
conversions to SI units that are provided for information only
5 7
dimensionby ⁄16 to ⁄16 in.(7.9to11.1mm),inclusive,inthe
and are not considered standard.
small dimension.
7 13
(2) Diamonds, ⁄8 and ⁄16 in. (22.2 and 20.6 mm) in the
2. Referenced Documents
5 3
longest dimension by ⁄8 to ⁄4 in. (15.9 to 19.0 mm),
2.1 ASTM Standards: inclusive, in the smallest dimension.
1 1
(3) I-Beams,1 ⁄2 and2 ⁄8 in.(35and54mm)inwidthand
A1Specification for Carbon Steel Tee Rails
1 1
A29/A29MSpecification for Steel Bars, Carbon and Alloy, ⁄8 to ⁄4 in. (3.2 to 6.4 mm), inclusive, in thickness.
1 5
(4) U-Bars,1 ⁄4 and1 ⁄16 in.(32and33mm)inwidthand
Hot-Wrought, General Requirements for
5 5
A370Test Methods and Definitions for Mechanical Testing ⁄32 to ⁄16 in. (4.0 to 7.9 mm) in thickness.
(5) Channeled Flats,1 ⁄4 to2in.(32to51mm),inclusive,
of Steel Products
3 3
in depth, and ⁄16 to ⁄8 in. (4.8 to 9.5 mm), inclusive, in
thickness.
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
4. Ordering Information
3.1.1 Rail steel bars and bar size shapes are available in the
4.1 Orders for material under this specification should
following sections and nominal sizes:
include the following information:
3.1.1.1 Rounds, Squares, and Round Corner Squares in
4.1.1 Quantity (weight or number of pieces),
3 1
sizes ranging from ⁄8 to 1 ⁄4 in. (9.5 to 32 mm).
4.1.2 Name of material (rail steel carbon bars),
3.1.1.2 Square and Round Edge Flats, ⁄8 to 5 in. (15.9 to
4.1.3 Grade of steel (Grade 50 and Grade 60),
127 mm), inclusive, in width and thickness from ⁄64 to 1 in.
4.1.4 Dimensions (diameter, thickness, width, etc. and
(2.8 to 25 mm), inclusive, within 6 lb/ft (8.8 kg/m) limit.
length),
3.1.1.3 Hexagons and Octagons, in sizes ⁄2 to 1 in. (12.7
4.1.5 Cross section (rounds, square, hexagon, etc.) (3.1),
to 25 mm) in ⁄16-in. (1.6-mm) increments.
4.1.6 ASTM designation and date of issue,
3.1.1.4 Bar Size Shapes:
4.1.7 Certification, if required (Section 11), and
4.1.8 End use.
NOTE 1—A typical ordering description is as follows: 10 000 lb, rail
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
steel carbon bars, 1.000 in. diameter by 10 ft, round, ASTM A499 dated
StainlessSteelandRelatedAlloysandisthedirectresponsibilityofA01.15onBars.
_______.
Current edition approved March 1, 2008. Published April 2008. Originally
approved in 1964. Last previous edition approved in 2002 as A499–89 (2002).
5. General Requirements
DOI: 10.1520/A0499-89R08.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Material furnished under this specification shall con-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
form to the applicable requirements of the current edition of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Specification A29/A29M, unless otherwise provided herein.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A499−89 (2008)
TABLE 1 Mechanical Requirements
6. Materials and Manufacture
Grade 50 Grade 60
6.1 Material—The material shall be hot wrought from
Tensile strength, min, ksi (MPa) 80 (550) 90 (620)
standard section “T” rails. No other materials, such as those
Yield point, min, ksi (MPa) 50 (345) 60 (415)
known by the terms “rerolled,” “rail steel equivalent,” or “rail
Elongation in 8 in. or 200 mm, min, % 5 5
Elongation in 2 in. or 50 mm, min, % 7 7
steel quality,” shall be substituted.
A
Brinell hardness, min 159 190
A
6.2 Hot Forming—The material shall be produced by hot Rockwell B hardness, min 83 91
A
forming slit railroad rail parts to yield straight lengths in the
Hardness tests are an acceptable alternative for tension tests where the bar
size precludes a tension test specimen in accordance with Test Methods and
sections and nominal sizes specified in 3.1.1.
Definitions A370.
6.3 Condition:
6.3.1 The material shall be furnished hot wrought, as
wrought.
9. Dimensions and Permissible Variations
6.3.2 Thematerialshallbefurnishedincutlengthsorranges
9.1 Dimensions—The permissible variations in dimensions
of random lengths, as specified by the purchaser.
shall be in accordance with the requirements specified in
Tables 2-7. Due to differences in mill facilities, tolerances of
7. Chemical Composition
special bar sections vary among the manufacturers and such
7.1 The chemical composition of rails does not change
tolerances are subject to agreement between manufacturer and
during use in track, reheating, slitting or rolling; consequently,
purchaser.
the composition of rail steel products will fall within the limits
9.2 Length—The permissible variations for length shall be
specified in Specification A1 for standard section “T” rails of
in accordance with the requirements specified in Table 8.
open-hearth, basic-oxygen, electric-furnace, and Bessemer
process.
9.3 Straightness—Variationsinstraightnessshallnotexceed
1 1
⁄4 in.(6.4mm)inany5ft(1.52m);or ⁄4 in.×numberoffeet
7.2 Rail steel products are not supplied to definite compo-
of length divided by 5 (6.4 mm × number of metres of length
sition limits. By mutual agreement with the manufacturer,
divided by 1.52).
material may be supplied from rails with a desired range of
carbon and manganese when such rails are available.
10. Workmanship, Finish, and Appearance
8. Mechanical Properties 10.1 Descaling—Thebarsshallbefurnished“notdescaled.”
8.1 Requirements—The material as represented by the test
11. Certification and Report of Testing
specimens shall conform to the tensile or hardness require-
11.1 Upon request of the purchaser
...
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