ASTM A595-04a
(Specification)Standard Specification for Steel Tubes, Low-Carbon, Tapered for Structural Use
Standard Specification for Steel Tubes, Low-Carbon, Tapered for Structural Use
SCOPE
1.1 This specification covers three grades of seam-welded, round, tapered steel tubes for structural use. Grades A and B are of low-carbon steel or high-strength low-alloy steel composition and Grade C is of weather-resistant steel composition.
1.2 This tubing is produced in welded sizes in a range of diameters from 23/8 to 30 in. (63.5 to 762.0 mm) inclusive. Wall thicknesses range from 0.1046 to 0.375 in. (2.66 to 9.53 mm). Tapers are subject to agreement with the manufacturer.
1.3 The values stated in inch-pound units are to be regarded as the 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A 595 – 04a
Standard Specification for
Steel Tubes, Low-Carbon or High-Strength Low-Alloy,
1
Tapered for Structural Use
This standard is issued under the fixed designation A595; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* 3.1.1 Large and small diameters (in.), length (ft), wall
thickness (in.), and taper (in./ft);
1.1 This specification covers three grades of seam-welded,
3.1.2 (see Table 1 and Table 2);
round,taperedsteeltubesforstructuraluse.GradesAandBare
3.1.3 Extra test material requirements, if any; and
of low-carbon steel or high-strength low-alloy steel composi-
3.1.4 Supplementary requirements, if any.
tion and Grade C is of weather-resistant steel composition.
1.2 This tubing is produced in welded sizes in a range of
4. General Requirements for Delivery
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diametersfrom2 ⁄8to30in.(63.5to762.0mm)inclusive.Wall
4.1 Required date of shipment or date of receipt, and
thicknesses range from 0.1046 to 0.375 in. (2.66 to 9.53 mm).
4.2 Special shipping instructions, if any.
Tapers are subject to agreement with the manufacturer.
1.3 The values stated in inch-pound units are to be regarded
5. Manufacture
as the standard.
5.1 Tube steel shall be hot-rolled aluminum-semikilled or
2. Referenced Documents fine-grained killed sheet or plate manufactured by one or more
2 of the following processes: open-hearth, basic-oxygen, or
2.1 ASTM Standards:
electric-furnace.
A370 TestMethodsandDefinitionsforMechanicalTesting
5.2 Tubes shall be made from trapezoidal sheet or plate that
of Steel Products
is preformed and then seam welded. Tubes shall be brought to
A588/A588M Specification for High-Strength Low-Alloy
final size and properties by roll compressing cold on a
Structural Steel with 50 ksi [345 MPa] Minimum Yield
hardened mandrel.
Point to 4-in. [100-mm] Thick
A 606 Specification for Steel, Sheet and Strip, High-
6. Chemical Composition
Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with
6.1 Steel shall conform to the requirements for chemical
Improved Atmospheric Corrosion Resistance
composition given in Tables 1 and 3. Chemical analysis shall
A 751 Test Methods, Practices, and Terminology for
be in accordance with Test Methods, Practices, and Terminol-
Chemical Analysis of Steel Products
ogy A751.
G101 Guide for Estimating the Atmospheric Corrosion
6.2 For Grade C material, the atmospheric corrosion-
Resistance of Low-Alloy Steels
resistance index, calculated on the basis of the chemical
composition of the steel, as described in Guide G101, shall be
3. Ordering Information
6.0 or higher.
3.1 The inquiry and order should indicate the following:
NOTE 1—The user is cautioned that the Guide G101 predictive
equation for calculation of an atmospheric corrosion-resistance index has
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This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, been verified only for the composition limits stated in that guide.
StainlessSteel,andRelatedAlloys,andisthedirectresponsibilityofSubcommittee
6.3 When required by the purchase order, the manufacturer
A01.09 on Carbon Steel Tubular Products.
Current edition approved Sept. 1, 2004. Published September 2004. Originally shall supply guidance concerning corrosion resistance that is
approved in 1969. Last previous edition approved in 2004 as A595–04.
satisfactory to the purchaser.
2
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
7. Mechanical Properties
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 7.1 Tension Test:
*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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A 595 – 04a
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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.
TABLE 1 Chemical Requirements
Composition by Heat Analysis, %
Grade A Grade B Grade C
Elements
Carbon Steel HSLA SS HSLAS Cl1 HSLAS Cl2 Carbon Steel HSLA SS HSLAS Cl1 HSLAS Cl2 A 606 A 588/A A 588/B A 588/C A 588/K
Carbon 0.015–0.25 0.25 max 0.23 max 0.15 max 0.015–0.25 0.25 max 0.26 max 0.15 max 0.22 max 0.19 max 0.20 max 0.15 max 0.17 max
Manganese 0.30–0.90 1.35 max 1.35 max 1.35 max 0.40–1.35 1.35 max 1.50 max 1.50 max 1.25 max 0.80–1.25 0.75–1.35 0.80–1.35 0.50–1.20
A
Phosporous 0.035 max 0.035 max 0.04 max 0.04 max 0.035 max 0.035 max 0.04 max 0.04 max 0.04 max 0.04
...
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