ASTM A1024/A1024M-02(2012)
(Specification)Standard Specification for Steel Line Pipe, Black, Plain-End, Seamless
Standard Specification for Steel Line Pipe, Black, Plain-End, Seamless
ABSTRACT
This specification covers standard requirements for seamless, black, plain-end steel pipes for use in the conveyance of fluids under pressure. A quantity of pipe of the same ordered diameter, heat, wall thickness, and grade shall be given. Heat and product analyses shall be performed wherein steel pipes shall conform to the required chemical composition for carbon, sulfur, and phosphorus. Steel samples shall undergo tension test and shall conform to tensile properties such as yield strength and tensile strength. Hydrostatic pressure test shall be performed for steel samples with specified wall thickness and test pressure. The entire outer surface of the steel pipe shall undergo nondestructive electric test and shall be inspected for longitudinal defects by either magnetic particle inspection, ultrasonic inspection, and electromagnetic inspection.
SCOPE
1.1 This specification covers seamless, black, plain-end steel pipe for use in the conveyance of fluids under pressure. Pipe in sizes NPS 1 to 26, inclusive, as given in ASME B36.10M is included. Pipe having other dimensions, in this size range, may be furnished provided such pipe complies with all other requirements of this specification.
1.2 It is intended that the pipe be capable of being circumferentially welded in the field when welding procedures in accordance with the requirements of the applicable pipeline construction code are used.
1.3 The values stated in either inch-pound units or in SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values in each system are not exact equivalents; therefore, each system is to be used independently of the other.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:A1024/A1024M −02 (Reapproved 2012)
Standard Specification for
Steel Line Pipe, Black, Plain-End, Seamless
This standard is issued under the fixed designation A1024/A1024M; 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 2.3 ASME Standard:
ASME B36.10MWelded and SeamlessWrought Steel Pipe
1.1 This specification covers seamless, black, plain-end
steel pipe for use in the conveyance of fluids under pressure.
3. Terminology
Pipe in sizes NPS 1 to 26, inclusive, as given in ASME
3.1 Definitions—For terminology used in this specification,
B36.10M is included. Pipe having other dimensions, in this
refer to Terminology A941.
sizerange,maybefurnishedprovidedsuchpipecomplieswith
all other requirements of this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 lot, n—a quantity of pipe of the same ordered
1.2 It is intended that the pipe be capable of being circum-
diameter, heat, wall thickness, and grade as given in Table 1.
ferentially welded in the field when welding procedures in
accordance with the requirements of the applicable pipeline
3.2.2 seamless pipe, n—a tubular product made without a
construction code are used. welded seam; it is manufactured usually by hot working the
material, and if necessary, by subsequently cold-finishing the
1.3 The values stated in either inch-pound units or in SI
hot worked tubular product to produce the desired shape,
units are to be regarded separately as standard.Within the text,
dimensions, and properties.
the SI units are shown in brackets. The values in each system
3.2.3 specified outside diameter (OD), n— the outside
are not exact equivalents; therefore, each system is to be used
diameterspecifiedinthepurchaseorderortheoutsidediameter
independently of the other.
listedinASMEB36.10Mforthenominalpipesizespecifiedin
2. Referenced Documents
the purchase order.
2.1 ASTM Standards:
4. General Requirements
A370Test Methods and Definitions for Mechanical Testing
4.1 Pipe furnished under this specification shall conform to
of Steel Products
the applicable requirements of Specification A530/A530M
A450/A450MSpecification for General Requirements for
unless otherwise provided herein.
Carbon and Low Alloy Steel Tubes
A530/A530MSpecification for General Requirements for
5. Ordering Information
Specialized Carbon and Alloy Steel Pipe
A751Test Methods, Practices, and Terminology for Chemi-
5.1 Information items to be considered, if appropriate, for
cal Analysis of Steel Products
inclusion in the purchase order are as follows:
A941TerminologyRelatingtoSteel,StainlessSteel,Related
5.1.1 Specification designation and year of issue,
Alloys, and Ferroalloys
5.1.2 Quantity (feet or metres),
2.2 API Standard:
5.1.3 Grade (see Table 2 and 8.1.5),
API RP 5L3Recommended Practice for Conducting Drop- 5.1.4 Size (either nominal (NPS) or outside diameter and
Weight Tear Tests on Line Pipe
wall thickness),
5.1.5 Nominal length (see 14.3),
5.1.6 End finish (plain-end beveled or special, see 15.1),
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
5.1.7 Impact test temperature (see 8.2.5),
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
5.1.8 Heat treatment condition (see 6.1),
A01.09 on Carbon Steel Tubular Products.
Current edition approved Sept. 1, 2012. Published November 2012. Originally
5.1.9 Carbon equivalent for over 0.800 in. [20.3 mm] wall
approved in 2002. Last previous edition approved in 2007 as A1024/
thicknesses (see 7.4),
A1024M–02(2007), DOI: 10.1520/A1024_A1024M-02R12.
2 5.1.10 Reduced under thickness variation (see Table 5),
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
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Available from American Society of Mechanical Engineers (ASME), ASME
Available from American Petroleum Institute (API), 1220 L. St., NW, International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
Washington, DC 20005-4070, http://api-ec.api.org. www.asme.org.
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A1024/A1024M−02 (2012)
TABLE 1 Lot Size and Sample Size for Mechanical and
7. Chemical Composition
Toughness Testing
7.1 The steel for any grade, by heat and product analyses,
Pipe Size Lot Size Sample Size
shall contain no more than 0.24% carbon, 0.015% sulfur, and
0.025% phosphorus.
NPS 2 through NPS 5 400 lengths 1
NPS 6 through NPS 12 200 lengths 1
7.2 Thesteelshallcontainnomorethan0.0007%boron,by
>NPS 12 100 lengths 1
heat analysis.
7.3 For pipe with a specified wall thickness less than or
TABLE 2 Tensile Requirements
equal to 0.800 in. [20.3 mm], the carbon equivalent (CE) shall
A
Grade Yield Strength, Tensile Strength,
Yield Strength,
not exceed 0.43%, calculated from the product analysis using
Max.
Min. Min.
the following equation:
psi MPa psi MPa psi MPa
CE 5 C1F @Mn/61Si/241Cu/151Ni/201~Cr1Mo1V1Cb!/5#
35 35 000 240 65 000 450 60 000 415
50 50 000 345 77 000 530 70 000 485
(1)
60 60 000 415 80 000 550 75 000 515
70 70 000 485 87 000 600 80 000 550
where:
80 80 000 550 97 000 670 90 000 620
F = a compliance factor that is dependent on the carbon
A
See 8.1.1.
content as shown below:
Carbon Carbon
F F
Content, % Content, %
TABLE 3 Hydrostatic Test Pressure
<0.06 0.53 0.15 0.88
0.06 0.54 0.16 0.92
Specified Wall Test Pressure,
NPS Specified OD
0.07 0.56 0.17 0.94
Thickness Min.
Designator in. [mm]
0.08 0.58 0.18 0.96
in. [mm] psi [kPa]
0.09 0.62 0.19 0.97
1 1.315 [33.4] 0.133 [3.4] 700 [4800]
0.10 0.66 0.20 0.98
0.179 [4.6] 850 [5900]
0.11 0.70 0.21 0.99
0.250 [6.4] 950 [6600]
0.12 0.75 >0.21 1.00
0.358 [9.1] 1000 [6900]
0.13 0.80
1 ⁄4 1.660 [42.2] 0.140 [3.6] 1300 [9000]
0.14 0.85
0.191 [4.9] 1900 [13 100]
0.250 [6.4] 2000 [13 800]
7.4 For pipe with a specified wall thickness greater than
0.382 [9.7] 2300 [15 900]
0.800 in. [20.3 mm], the carbon equivalent (CE) shall be as
1 ⁄2 1.900 [48.3] 0.145 [3.7] 1300 [9000]
specified in the purchase order.
0.200 [5.1] 1900 [13 100]
0.281 [7.1] 2000 [13 800]
7.5 A heat analysis shall be made for each heat of steel
0.400 [10.2] 2300 [15 900]
furnished under this specification. All pipe shall be marked
witheitheraheatnumberorheatcodeinaccordancewith18.1
TABLE 4 Acceptance Limits
and 18.2.
Acceptance Limit
7.6 Product analyses shall be made on at least two samples
Type of Notch
Signal, %
from each heat of steel.
Parallel Sided Notch 100
Drilled Hole 100
7.7 All analyses shall be in accordance with Test Methods,
Practices, and Terminology A751, and shall include all ele-
ments required in the carbon equivalent equation of 7.3,in
TABLE 5 Permissible Variations in Wall Thickness
additiontotitanium,phosphorus,sulfur,andboron,exceptthat
Permissible Variations from
A the product analysis for boron is not required. Titanium is
NPS Designator Specified Wall Thickness, %
Over Under reported for information only and is not a cause for rejection.
1to2 ⁄2, incl. 20.0 10.0
7.8 Ifoneorbothoftheproductanalysesrepresentingaheat
3 and larger 15.0 10.0
A fail to conform to the specified requirements, the heat shall be
If a reduced under thickness variation is specified in the purchase order, it is
permissible for the over thickness variation to be increased, provided that the
rejected, or analyses shall be made on double the original
applicable total tolerance range in percent is not increased.
numberoftestsamplesthatfailed,eachofwhichshallconform
to the specified requirements.
5.1.11 Special requirements,
8. Mechanical Properties
5.1.12 Supplementary requirements, and
8.1 Tension Test:
5.1.13 Bar coding (see 18.3).
8.1.1 The material shall conform to the tensile requirements
6. Manufacture
given in Table 2 and 8.1.6. The yield strength maxima apply
6.1 Pipe shall be manufactured by the seamless process. only to pipe NPS 8 and larger.
8.1.2 The yield strength corresponding to a total extension
Unless a specific heat treatment condition is specified in the
purchase order, pipe shall be furnished in the as-rolled, under load of 0.5% of the gage length shall be determined.
normalized, normalized and tempered, or quenched and tem- 8.1.3 Transverse tension tests shall be performed on pipe
pered condition. NPS 8 and larger, or longitudinal, subject to approval by
A1024/A1024M−02 (2012)
purchaser. Transverse test specimens shall be either strip test where:
specimens or round bar test specimens, at the option of the
N = adjusted value, ft·lbf [J], and
manufacturer. All transverse strip test specimens shall be
R = value required by 8.2.4.
approximately 1 ⁄2 in. [38 mm] wide in the gage length and
8.2.4 For pipe NPS 5 through NPS 26, the absorbed energy
each shall represent the full wall thickness of the pipe from
requirementforfullsizetestspecimensshallbe20ft·lbf[27J].
which the test specimen was cut.
For pipe smaller than NPS 5, the absorbed energy requirement
8.1.4 Longitudinal tension tests shall be performed on pipe
for full size test specimens shall be 30 ft·lbf [40 J].
smallerthanNPS8.Longitudinaltestspecimensshallbeeither
8.2.5 Charpy impact testing shall be performed at 32°F
strip test specimens, full-size test specimens, or round bar test
[0°C], unless a lower test temperature is specified in the
specimens, at the option of the manufacturer.
purchase order.
8.1.5 Grades intermediate to those given in Table 2 shall be
furnishedifsospecifiedinthepurchaseorder.Forintermediate
9. Hydrostatic Test
grades, the difference between the specified maximum yield
9.1 Each length of pipe shall be subjected to the hydrostatic
strength and the specified minimum yield strength and the
test without leakage through the wall.
difference between the specified minimum tensile strength and
9.2 Each length of pipe NPS 2 or larger shall be tested, by
thespecifiedminimumyieldstrengthshallbeasgiveninTable
the manufacturer, to a minimum hydrostatic pressure calcu-
2 for the next higher listed grade.
lated from the following relationship:
8.1.6 For each grade, the minimum elongation in 2 in. [50
mm] shall be as determined by the following equation:
Inch 2 PoundUnits:P 5 2 St/D 3C (4)
~ !
0.2 0.9
e 5 C A /U (2)
~ !
SIUnits:P 5 2000 St/D 3C
~ !
where:
where:
e = minimum elongation in percent, rounded to the nearest
S = specified minimum yield strength, psi [MPa],
percent,
t = specified wall thickness, in. [mm],
C = constant=625000 [1940],
D = specified outside diameter, in. [mm],
2 2
A = the lesser of 0.75 in. [485 mm ] and the cross-
C = 0.60 for pipe NPS 2 through NPS 5,
sectional area of the tension test specimen in in. [mm
0.75 for pipe larger than NPS 5 through NPS 8,
2], based upon the specified outside diameter of the
0.85 for pipe larger than NPS 8 through NPS 18,
pipe or the nominal width of the tension test specimen
0.90 for pipe larger than NPS 18, and
and the specified wall thickness, rounded to the nearest
P = minimum hydrostatic test pressure, psi [kPa].
2 2
0.01 in. [1 mm ],
9.3 For pipe sizes smaller than NPS 2, the test pressures
U = specified minimum tensile strength, psi [MPa].
given in Table 3 are arbitrary. For pipe in sizes smaller than
8.2 Impact Test:
NPS 2 with specified wall thicknesses lighter than those listed,
8.2.1 Except as allowed by 8.2.2, pipe shall be Charpy
the test pressure for the next heavier listed specified wall
V-notch tested in accordance with Test Methods and Defini-
thickness shall be used. For intermediate specified outside
tions A370. For pipe smaller than NPS 5, such test specimens
diameters for pipe sizes smaller than NPS 2, the test pressures
shallbetakenlongitudinaltothepipeaxis.ForpipeNPS5and
given for the next smaller specified outside diameter shall be
larger, the test specimens shall be taken transverse to the pipe
used.
axis.
9.4 When computed test pressures are not an exact multiple
8.2.2 The basic test specimen is full size Charpy V-notch.
of 10 psi [100 kPa], they shall be rounded to the nearest 10 psi
Where full size test specimens, either conventional or contain-
[100 kPa].
ing the original OD surface, cannot be obtained due to a
9.5 The minimum hydrostatic test pressure required to
combination of specified outside diameter and specified wall
satisfy these requirements need not exceed 3000 psi [20700
thickness, two-thirds size or half-size test specimens shall be
kPa]. This does not prohibit testing at a higher pressure at the
used. Where combinations of specified outside diameter and
manufacturer’s option. The hydrostatic test pressure shall be
specified wall thickness do not permit half-size test specimens
maintained for not less than 5 s for all pipe sizes.
tobeobtained,thereisnorequirementforimpacttesting.Inall
cases, the largest possible test specimen size shall be used,
10. Nondestructive Electric Test
except where such a test specimen size will result in absorbed
energy values greater than 80% of the testing machine
10.1 The entire outside surface of each pipe shall be
capacity.
inspectedfulllengthforlongitudinaldefectsbyeithermagnetic
8.2.3 When subsize test specimens are used, the require- particle inspection, ultrasonic inspection, electromagnetic
ments for absorbed energy shall be the adjusted values ob-
inspection, or a combination thereof. The location of the
tained by the following relationships, with the calculated equipment in the mill shall be at the discretion of the
values rounded to the nearest foot pound-force [joule]:
manufacturer; however, the nondestructive inspection shall
take place after all heat treating and expansion operations, if
For2/3 size:N 5 R 30.67 (3)
performed, but may take place before cropping, beveling, and
For1/2 size:N 5 R 30.50 end sizing.
A1024/A1024M−02 (2012)
10.2 Magnetic Particle Inspection—The depth of all imper- 11. Number of Tests
fections revealed by magnetic particle inspection shall be
11.1 Tension and impact testing shall be performed on a lot
determined; and when found to be greater than 10% of the
basis with the lot size and sample sizes as given in Table 1.
specifiedwallthickness,theimperfectionshallbeconsidereda
defect. 12. Test Methods
12.1 The test specimens and the tests required by this
10.3 Ultrasonic and Electromagnetic Inspection—Any
specification shall conform to those described in Test Methods
equipmentutilizingtheultrasonicore
...
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