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ASTM A709/A709M-13
Standard Specification for Structural Steel for Bridges
Automaticky přeložený název:
Standardní specifikace pro konstrukční ocel pro mosty
NORMA vydána dne 1.5.2013
Informace o normě:
Označení normy: ASTM A709/A709M-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2013
Kód zboží: NS-3828
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM A709/A709M-13 :
Keywords:
alloy, atmospheric corrosion resistance, bars, bridges, carbon, fracture-critical, high-strength, low-alloy, non-fracture critical, plates, quenched, shapes, steel, structural steel, tempered, ICS Number Code 77.140.10 (Heat-treatable steels)
Doplňující informace
| 1. Scope | |||||||||||||||||||||||||
|
1.1 This specification covers carbon
and high-strength low-alloy steel structural shapes, plates, and
bars and quenched and tempered alloy steel for structural plates
intended for use in bridges. Seven grades are available in four
yield strength levels as follows:
1.1.1 Grades 36 [250], 50 [345], 50S [345S], and 50W [345W] are also included in Specifications A36/A36M, A572/A572M, A992/A992M, and A588/A588M, respectively. When the requirements of 1.1.2 Grades 50W [345W], HPS 50W [HPS 345W], HPS 70W [HPS 485W], and HPS 100W [HPS 690W] have enhanced atmospheric corrosion resistance (see 13.1.2). Product availability is shown in Grade |
Plate Thickness, |
Structural Shape Flange |
Yield Point |
Tensile |
Minimum Elongation, % |
Reduc- |
|||||||||||||||||||
|
Plates and BarsC, ShapesE |
|||||||||||||||||||||||||
|
8 in. |
2 in. |
8 in. |
2 in. |
||||||||||||||||||||||
|
36 [250] |
to 4 [100], incl |
to 3 in. [75 mm], incl |
36 [250] min |
58–80 [400–550] |
20 |
23 |
20 |
21 |
... |
||||||||||||||||
|
|
over 3 in. [75 mm] |
36 [250] min |
58 [400] min |
... |
.. |
20 |
19 |
... |
|||||||||||||||||
|
50 [345] |
to 4 [100], incl |
all |
50 [345] min |
65 [450] min |
18 |
21 |
18 |
21F |
... |
||||||||||||||||
|
50S [345S] |
G |
all |
50–65 |
65 [450]H min |
... |
... |
18 |
21 |
... |
||||||||||||||||
|
50W [345W] and |
to 4 [100], incl |
all |
50 [345] min |
70 [485] min |
18 |
21 |
18 |
21J |
... |
||||||||||||||||
|
HPS 70W |
to 4 [100], incl |
G |
70 [485] minB |
85–110 [585–760] |
... |
19K |
... |
... |
... |
||||||||||||||||
|
HPS 100W |
to 21/2 [65],
incl |
G |
100 [690] minB |
110–130 [760–895] |
... |
18K |
... |
... |
L |
||||||||||||||||
|
|
over 21/2 to
4 |
G |
90 [620] minB |
100–130 [690–895] |
... |
16K |
... |
... |
L |
||||||||||||||||
Product
Thickness,
in. (mm)
ShapesA
All
PlatesB
BarsB
To 3/4
[20], incl
Over 3/4
to 11/2 [20 to 40], incl
Over
11/2 to
21/2 [40 to 65], incl
Over 21/2 to
4
[65 to 100],
incl
To 3/4
[20],
incl
Over
3/4 to
11/2 [20 to
40], incl
Over
11/2 to
4 [100], incl
Carbon, max, %
0.26
0.25
0.25
0.26
0.27
0.26
0.27
0.28
Manganese, %
...
...
0.80–1.20
0.80–1.20
0.85–1.20
...
0.60–0.90
0.60–0.90
Phosphorus, max, %
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
Sulfur, max, %
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
Silicon, %
0.40 max
0.40 max
0.40 max
0.15–0.40
0.15–0.40
0.40 max
0.40 max
0.40 max
Copper, min, % when copper steel is
specified
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
SiliconC
Columbium,
Vanadium
and Nitrogen
Maximum Diameter,
Thickness, or
Distance Between
Parallel Faces, in. [mm]
Carbon,
max, %
Manganese,B
max, %
Phosphorus,
max, %
Sulfur,
max, %
Plates to
11/2-in. [40-mm] Thick,
Shapes with flange
or leg
thickness
to 3 in. [75 mm]
inclusive, Sheet Piling, Bars, Zees, and Rolled
Tees,
max, %D
Plates Over
11/2-in. [40-mm]
Thick and Shapes
with flange thickness
over 3 in. [75 mm], %
4 [100]
0.23
1.35
0.04
0.05
0.40
0.15–0.40
E
A Copper when specified shall have a minimum content of 0.20 % by heat analysis (0.18 % by product analysis).
B Manganese, minimum by heat analysis of 0.80 % (0.75 % by product analysis) shall be required for all plates over 3/8 in. [10 mm] in thickness; a minimum of 0.50 % (0.45 % by product analysis) shall be required for plates 3/8 in. [10 mm] and less in thickness, and for all other products. The manganese to carbon ratio shall not be less than 2 to 1. For each reduction of 0.01 percentage point below the specified carbon maximum, an increase of 0.06 percentage point manganese above the specified maximum is permitted, up to a maximum of 1.60 %.
C Silicon content in excess of 0.40 % by heat analysis must be negotiated.
D Bars over 11/2 in. [40 mm] in diameter, thickness, or distance between parallel faces, shall be made by a killed steel practice.
E Alloy content shall be in accordance with Type 1, 2, 3, or 5 and the contents of the applicable elements shall be reported on the test report.
|
Type |
Elements |
Heat Analysis, % |
|
1 |
ColumbiumA |
0.005–0.05B |
|
2 |
Vanadium |
0.01–0.15 |
|
3 |
ColumbiumA |
0.005–0.05B |
|
5 |
Titanium |
0.006–0.04 |
Element
Composition, %A
Type A
Type B
CarbonB
0.19 max
0.20 max
ManganeseB
0.80–1.25
0.75–1.35
Phosphorus
0.04 max
0.04 max
Sulfur
0.05 max
0.05 max
Silicon
0.30–0.65
0.15–0.50
Nickel
0.40 max
0.50 max
Chromium
0.40–0.65
0.40–0.70
Copper
0.25–0.40
0.20–0.40
Vanadium
0.02–0.10
0.01–0.10
Element
Composition, %
Grades
HPS 50W [HPS 345W],
HPS 70W [HPS 485W]
Grade
HPS 100W [HPS 690W]
Carbon
0.11 max
0.08 max
Manganese
2.5 in. [65 mm] and under
1.10–1.35
0.95–1.50
Over 2.5 in. [65 mm]
1.10–1.50
0.95–1.50
Phosphorus
0.020 max
0.015 max
SulfurA
0.006 max
0.006 max
Silicon
0.30–0.50
0.15–0.35
Copper
0.25–0.40
0.90–1.20
Nickel
0.25–0.40
0.65–0.90
Chromium
0.45–0.70
0.40–0.65
Molybdenum
0.02–0.08
0.40–0.65
Vanadium
0.04–0.08
0.04–0.08
Columbium (Niobium)
. . .
0.01–0.03
Aluminum
0.010–0.040
0.020–0.050
Nitrogen
0.015 max
0.015 max
Element
Composition, %
Carbon, max
0.23
Manganese
0.50 to 1.60A
Silicon, max
0.40
Vanadium, max
0.15B
Columbium, max
0.05B
Phosphorus, max
0.035
Sulfur, max
0.045
Copper, max
0.60
Nickel, max
0.45
Chromium, max
0.35
Molybdenum, max
0.15
Zone
Minimum Service Temperature, °F
[°C]
1
0
[−18]
2
below 0 to −30
[−18 to −34]
3
below −30 to −60
[−34 to −51]
1.2 Grade HPS 70W [HPS 485W] or HPS 100W [HPS 690W] shall not be substituted for Grades 36 [250], 50 [345], 50S [345S], 50W [345W], or HPS 50W [HPS 345W]. Grade 50W [345W], or HPS 50W [HPS 345W] shall not be substituted for Grades 36 [250], 50 [345] or 50S [345S] without agreement between the purchaser and the supplier.
1.3 When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.
1.4 For structural products to be used as tension components requiring notch toughness testing, standardized requirements are provided in this standard, and they are based upon American Association of State Highway and Transportation Officials (AASHTO) requirements for both fracture critical and non-fracture critical members.
1.5 Supplementary requirements are available but shall apply only if specified in the purchase order.
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 non-conformance with the standard.
1.7 For structural products produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A6/A6M apply.
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Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling |
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Standard Test Methods and Definitions for Mechanical Testing of Steel Products |
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Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel (Includes all amendments and changes 6/16/2021). |
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Standard Specification for Carbon Structural Steel |
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Standard Specification for Sampling Procedure for Impact Testing of Structural Steel |
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Standard Specification for Structural Steel Shapes |
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Standard Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels |
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Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance |
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