ASTM A1065/A1065M-09(2014)
(Specification)Standard Specification for Cold-Formed Electric-Fusion (Arc) Welded High-Strength Low–Alloy Structural Tubing in Shapes, with 50 ksi [345 MPa] Minimum Yield Point
Standard Specification for Cold-Formed Electric-Fusion (Arc) Welded High-Strength Low–Alloy Structural Tubing in Shapes, with 50 ksi [345 MPa] Minimum Yield Point
SCOPE
1.1 This specification covers three Types and two Grades of cold formed electric-fusion (arc) welded high-strength low-alloy steel tubing of 50 ksi [345 MPa] minimum yield point for use in welded or bolted construction of buildings and for general structural purposes.
1.2 This tubing is produced in square and rectangular sizes with a periphery of 200 in. [500 cm] or less and a specified wall thickness of 1.00 in. [25 mm] or less. Tubes are joined by two longitudinal electric-fusion (arc) welds. Circumferential welds are disallowed. Sizes outside of those listed in Tables 4 and 5 may be ordered provided all other requirements of the specification are met. Typical lengths are 15 to 50 ft. [5 to 15 m].Note 1—Products manufactured to this specification may not be suitable for those applications such as dynamically loaded elements in welded structures, etc. where low-temperature toughness properties may be important. (See Supplementary Requirement S1.)
1.3 This specification covers the following Types:
1.3.1 Type 1—Welded with backing, backing left in the product,
1.3.2 Type 2—Welded with backing, backing removed,
1.3.3 Type 3—Welded without backing.
1.4 Tubing is available in Grades 50 [345] and 50W [345W]. Grade 50 [345] is manufactured from high-strength low-alloy steel. Grade 50W [345W] is manufactured from high-strength low-alloy steel with enhanced atmospheric corrosion resistance. (See 10.1.2) The Grades may not be interchanged without approval of the purchaser. ASTM Specifications for plate that may be applied to Grade 50 [345] and 50W [345W] are listed in Reference Documents and in Table 1.
1.5 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.6 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.
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Designation:A1065/A1065M −09(Reapproved 2014)
Standard Specification for
Cold-Formed Electric-Fusion (Arc) Welded High-Strength
Low–Alloy Structural Tubing in Shapes, with 50 ksi [345
MPa] Minimum Yield Point
This standard is issued under the fixed designation A1065/A1065M; 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.
1. Scope units or inch-pound units are to be regarded separately as
standard. Within the text, the SI units are shown in brackets.
1.1 This specification covers three Types and two Grades of
The values stated in each system may not be exact equivalents;
cold formed electric-fusion (arc) welded high-strength low-
therefore,eachsystemshallbeusedindependentlyoftheother.
alloy steel tubing of 50 ksi [345 MPa] minimum yield point for
Combining values from the two systems may result in noncon-
use in welded or bolted construction of buildings and for
formance with the standard.
general structural purposes.
1.6 This standard does not purport to address all of the
1.2 This tubing is produced in square and rectangular sizes
safety concerns, if any, associated with its use. It is the
withaperipheryof200in.[500cm]orlessandaspecifiedwall
responsibility of the user of this standard to establish appro-
thickness of 1.00 in. [25 mm] or less. Tubes are joined by two
priate safety and health practices and determine the applica-
longitudinal electric-fusion (arc) welds. Circumferential welds
bility of regulatory limitations prior to use.
are disallowed. Sizes outside of those listed in Tables 4 and 5
may be ordered provided all other requirements of the speci-
2. Referenced Documents
fication are met. Typical lengths are 15 to 50 ft. [5 to 15 m].
2.1 ASTM Standards:
NOTE 1—Products manufactured to this specification may not be
A6/A6M Specification for General Requirements for Rolled
suitable for those applications such as dynamically loaded elements in
welded structures, etc. where low-temperature toughness properties may
Structural Steel Bars, Plates, Shapes, and Sheet Piling
be important. (See Supplementary Requirement S1.)
A242/A242M Specification for High-Strength Low-Alloy
1.3 This specification covers the following Types: Structural Steel
A572/A572M Specification for High-Strength Low-Alloy
1.3.1 Type 1—Welded with backing, backing left in the
Columbium-Vanadium Structural Steel
product,
1.3.2 Type 2—Welded with backing, backing removed, A588/A588M Specification for High-Strength Low-Alloy
Structural Steel, up to 50 ksi [345 MPa] Minimum Yield
1.3.3 Type 3—Welded without backing.
Point, with Atmospheric Corrosion Resistance
1.4 Tubing is available in Grades 50 [345] and 50W
A656/A656M Specification for Hot-Rolled Structural Steel,
[345W]. Grade 50 [345] is manufactured from high-strength
High-Strength Low-Alloy Plate with Improved Formabil-
low-alloy steel. Grade 50W [345W] is manufactured from
ity
high-strength low-alloy steel with enhanced atmospheric cor-
A700 Practices for Packaging, Marking, and Loading Meth-
rosion resistance. (See 10.1.2) The Grades may not be inter-
ods for Steel Products for Shipment (Withdrawn 2014)
changed without approval of the purchaser. ASTM Specifica-
A709/A709M Specification for Structural Steel for Bridges
tions for plate that may be applied to Grade 50 [345] and 50W
A941 TerminologyRelatingtoSteel,StainlessSteel,Related
[345W] are listed in Reference Documents and in Table 1.
Alloys, and Ferroalloys
1.5 This specification is expressed in both inch-pound units
A945/A945M Specification for High-Strength Low-Alloy
and in SI units; however, unless the purchase order or contract
Structural Steel Plate with Low Carbon and Restricted
specifies the applicable M specification designation (SI units),
Sulfur for Improved Weldability, Formability, and Tough-
the inch-pound units shall apply. The values stated in either SI
ness
1 2
This specification is under the jurisdiction of ASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.09 on Carbon Steel Tubular Products. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2014. Published March 2014. Originally the ASTM website.
approved in 2009. Last previous edition approved in 2009 as A1065/A1065M - 09. The last approved version of this historical standard is referenced on
DOI: 10.1520/A1065_A1065M-09R14. www.astm.org.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
A1065/A1065M−09 (2014)
A
TABLE 1 ASTM Plate Specifications
4.1.4 Type (1, 2, or 3),
Grade 50 [345] A572/A572M, A656/A656M, A709/
4.1.5 Grade 50 [345] or Grade 50W [345W],
A709M, A945/A945M
4.1.6 Individual supplementary requirements, if required
Grade 50W [345] A242/A242M, A588/A588M, A709/
(Supplementary Requirements S1 to S4, inclusive).
A709M HPS 50W
A
Individual specifications may have more than one Grade or Type and provide
chemical requirements.
5. Manufacture
5.1 The steel from which the tubing is made shall conform
to Specifications A242/A242M, A572/A572M, A588/A588M,
TABLE 2 Tensile Requirements
A656/A656M, A709/A709M,or A945/A945M. The Specifi-
Grade 50 [345] Grade 50W [345W]
cations are identified in Table 1 according to Grade 50 [345] or
Tensile strength, min, 60 000 [415] 70 000 [480]
psi [MPa]
Grade 50W [345W]. The choice of Grade andASTM Standard
Yield strength, min, psi 50 000 [345] 50 000 [345]
steel material is at the manufacturer’s option unless identified
[MPa]
in the purchase order (See Supplementary Requirement S3).
Elongation in 2 in. [50 21 21
mm],min.%
5.2 Two equally shaped pieces of flat-rolled plate product of
the sameASTM plate specification shall be press brake formed
into halves of the finished size.Types 1 and 2 tubing shall have
G101 Guide for Estimating the Atmospheric Corrosion Re-
continuous backup bars tack welded to each leg of one of the
sistance of Low-Alloy Steels
half-sections. The two half sections shall be fitted together and
2.2 AWS Standard
arc welded with two seam welds to complete the tubing. Type
AWS D1.1 Structural Welding Code-Steel
2 tubing shall have the backing removed after seam welding.
2.3 Military Standard
Type 3 tubing shall be manufactured without backup bars.
MIL-STD-129 Marking for Shipment and Storage
5.3 The electric-fusion (arc) weld shall be deposited by the
2.4 Federal Standard
submerged arc welding process, flux cored arc welding process
Fed. Std. No. 123 Marking for Shipment
or gas metal arc welding process. The electrode shall be of
2.5 Steel Tube Institute
matching strength.
Hollow Structural Sections
5.4 Grade 50W [345W] backing shall be enhanced atmo-
2.6 AISC
sphericcorrosionresistantmaterial.Theelectrodeshallcomply
Manual of Steel Construction
with atmospheric corrosion resistance requirements.
3. Terminology
5.5 The standard weld shall be a partial joint penetration
3.1 Definitions—For definitions of terms used in this Single-V-groove weld with groove depth not less than eighty
specification, refer to Terminology A941. percent of the material thickness. For complete joint penetra-
tion welds, see Supplementary Requirement S2.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 HSS , n—aHollowStructuralSectionisacold-formed
5.6 The seam welds shall join the smaller flat sides of the
welded steel tube used for welded or bolted construction of structural section. (See Supplementary Requirement S4 for the
buildings, bridges and other structures. option of joining the larger flat sides).
3.2.2 electric fusion (arc) welded, n—a welding process that
5.7 Welding shall be in accordance with AWS D1.1, latest
uses an electric arc as the source of heat to melt and join
edition.
metals.
6. Material
3.2.3 weld reinforcement, n—that portion of the weld seam
above the plane of the plate surface.
6.1 Table 1 identifies ASTM high-strength low-alloy stan-
dard specification steel from which the tubing shall be manu-
4. Ordering Information
factured. Some Specifications have more than one Grade or
4.1 Orders for material under this specification shall contain
Type. The Specifications provide chemical compositions.
the following mandatory information:
4.1.1 Size (outside dimensions, thickness and length),
7. Mechanical Properties
4.1.2 Name Cold Formed Arc Welded HSLA Structural
7.1 The material as represented by the steel producer shall
Tubing,
conform to the requirements of Table 2.
4.1.3 Quantity (number of lengths of each size),
8. Permissible Variations in Dimensions
Available from American Welding Society (AWS), 550 NW LeJeune Rd.,
8.1 Outside Dimensions—The outside dimensions measured
Miami, FL 33126, http://www.aws.org.
across the flats at positions at least 2 in. [50 mm] from the ends
Available from Global Engineering Documents, 15 Inverness Way, East
Englewood, CO 80112-5704, http://www.global.ihs.com.
of the tubing shall not vary from the specified outside dimen-
Available from Steel Tube Institute of North America, 2000 Ponce de Leon,
sions by more than the applicable amount given in Table 3.
Suite 600, Coral Gables, FL 33134.
Measurement shall not include the weld reinforcement. Table 3
Available from American Institute of Steel Construction (AISC), One E.
Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org. includes allowances for convexity and concavity.
A1065/A1065M−09 (2014)
TABLE 3 Permissible Variations in Outside Flat Dimensions
Nominal Outside Large Flat Dimension Permissible Variation Over and Under Nominal Outside Flat Dimensions
Squares and rectangles with a large flat to small flat ratio less than 3.0 0.015 times each flat dimension
Rectangles with a large flat to small flat ratio equal to or greater than 3.0 0.02 times each flat dimension
A
TABLE 4 Permissible Variations in Outside Flat Dimensions
Wall in./mm 0.313 [8] 0.375 [10] 0.500 [13] 0.625 [16] 0.750 [19] 1.000 [25]
Outside Dimensions
in./mm
12 × 12 [300 × 300] XXXXXX
13 × 13 [330 × 330] XXXXXX
14 × 14 [360 × 360] XXXXXX
15 × 15 [380 ×
...
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