ASTM A1024/A1024M-02
(Specification)Standard Specification for Steel Line Pipe, Black, Plain-End, Seamless
Standard Specification for Steel Line Pipe, Black, Plain-End, Seamless
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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Designation: A 1024/A 1024M – 02
Standard Specification for
Steel Line Pipe, Black, Plain-End, Seamless
This standard is issued under the fixed designation A 1024/A 1024M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope ASMEB36.10M WeldedandSeamlessWroughtSteelPipe
1.1 This specification covers seamless, black, plain-end
3. Terminology
steel pipe for use in the conveyance of fluids under pressure.
3.1 Definitions—For terminology used in this specification,
Pipe in sizes NPS 1 to 26, inclusive, as given in ASME
refer to Terminology A 941.
B36.10M is included. Pipe having other dimensions, in this
3.2 Definitions of Terms Specific to This Standard:
size range, may be furnished provided such pipe complies with
3.2.1 lot, n—a quantity of pipe of the same ordered diam-
all other requirements of this specification.
eter, heat, wall thickness, and grade as given in Table 1.
1.2 It is intended that the pipe be capable of being circum-
3.2.2 seamless pipe, n—a tubular product made without a
ferentially welded in the field when welding procedures in
welded seam; it is manufactured usually by hot working the
accordance with the requirements of the applicable pipeline
material, and if necessary, by subsequently cold-finishing the
construction code are used.
hot worked tubular product to produce the desired shape,
1.3 The values stated in either inch-pound units or in SI
dimensions, and properties.
units are to be regarded separately as standard. Within the text,
3.2.3 specified outside diameter (OD), n—the outside diam-
the SI units are shown in brackets. The values in each system
eter specified in the purchase order or the outside diameter
are not exact equivalents; therefore, each system is to be used
listed inASME B36.10M for the nominal pipe size specified in
independently of the other.
the purchase order.
2. Referenced Documents
4. General Requirements
2.1 ASTM Standards:
4.1 Pipe furnished under this specification shall conform to
A 370 Test Methods and Definitions for MechanicalTesting
the applicable requirements of Specification A 530/A 530M
of Steel Products
unless otherwise provided herein.
A 450/A 450M Specification for General Requirements for
Carbon, Ferritic Alloy and Austenitic Alloy Steel Tubes
5. Ordering Information
A 530/A 530M Specification for General Requirements for
3 5.1 Information items to be considered, if appropriate, for
Specialized Carbon and Alloy Steel Pipe
inclusion in the purchase order are as follows:
A 751 Test Methods, Practices andTerminology for Chemi-
2 5.1.1 Specification designation and year of issue,
cal Analysis of Steel Products
5.1.2 Quantity (feet or metres),
A 941 Terminology Related to Steel, Stainless Steel, Re-
3 5.1.3 Grade (see Table 2 and 8.1.5),
lated Alloys, and Ferroalloys
5.1.4 Size (either nominal (NPS) or outside diameter and
2.2 API Standard:
wall thickness),
API RP 5L3 Recommended Practice for Conducting Drop-
5.1.5 Nominal length (see 14.3),
Weight Tear Tests on Line Pipe
5.1.6 End finish (plain-end beveled or special, see 15.1),
2.3 ASME Standard:
5.1.7 Impact test temperature (see 8.2.5),
5.1.8 Heat treatment condition (see 6.1),
5.1.9 Carbon equivalent for over 0.800 in. [20.3 mm] wall
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
thicknesses (see 7.4),
A01.09 on Carbon Steel Tubular Products.
5.1.10 Reduced under thickness variation (see Table 5),
Current edition approved July 10, 2002. Published August 2002.
Annual Book of ASTM Standards, Vol 01.03.
Annual Book of ASTM Standards, Vol 01.01.
4 5
Available from The American Petroleum Institute (API), 1220 L. St., NW, Available from American Society of Mechanical Engineers (ASME), ASME
Washington, DC 20005. International Headquarters, Three Park Ave., New York, NY 10016-5990.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 1024/A 1024M
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
7.2 Thesteelshallcontainnomorethan0.0007 %boron,by
NPS 6 through NPS 12 200 lengths 1
>NPS 12 100 lengths 1
heat analysis.
7.3 For pipe with a specified wall thickness less than or
equal to 0.800 in. [20.3 mm], the carbon equivalent (CE) shall
TABLE 2 Tensile Requirements
not exceed 0.43 %, calculated from the product analysis using
A
Grade Yield Strength, Yield Strength, Tensile Strength,
the following equation:
Min. Max. Min.
CE 5 C 1 F Mn/6 1 Si/24 1 Cu/15 1 Ni/20 1 Cr1Mo1V1Cb /5
@ ~ ! #
psi MPa psi MPa psi MPa
(1)
35 35 000 240 65 000 450 60 000 415
50 50 000 345 77 000 530 70 000 485
where:
60 60 000 415 80 000 550 75 000 515
F = a compliance factor that is dependent on the carbon
70 70 000 485 87 000 600 80 000 550
content as shown below:
80 80 000 550 97 000 670 90 000 620
A
Carbon Carbon
See 8.1.1.
F F
Content, % Content, %
<0.06 0.53 0.15 0.88
TABLE 3 Hydrostatic Test Pressure
0.06 0.54 0.16 0.92
0.07 0.56 0.17 0.94
Specified Wall Test Pressure,
NPS Specified OD
0.08 0.58 0.18 0.96
Thickness Min.
Designator in. [mm]
0.09 0.62 0.19 0.97
in. [mm] psi [kPa]
0.10 0.66 0.20 0.98
1 1.315 [33.4] 0.133 [3.4] 700 [4800]
0.11 0.70 0.21 0.99
0.179 [4.6] 850 [5900]
0.12 0.75 >0.21 1.00
0.250 [6.4] 950 [6600]
0.13 0.80
0.358 [9.1] 1000 [6900]
0.14 0.85
1 ⁄4 1.660 [42.2] 0.140 [3.6] 1300 [9000]
0.191 [4.9] 1900 [13 100] 7.4 For pipe with a specified wall thickness greater than
0.250 [6.4] 2000 [13 800]
0.800 in. [20.3 mm], the carbon equivalent (CE) shall be as
0.382 [9.7] 2300 [15 900]
specified in the purchase order.
1 ⁄2 1.900 [48.3] 0.145 [3.7] 1300 [9000]
0.200 [5.1] 1900 [13 100] 7.5 A heat analysis shall be made for each heat of steel
0.281 [7.1] 2000 [13 800]
furnished under this specification. All pipe shall be marked
0.400 [10.2] 2300 [15 900]
with either a heat number or heat code in accordance with 18.1
and 18.2.
7.6 Product analyses shall be made on at least two samples
TABLE 4 Acceptance Limits
from each heat of steel.
Acceptance Limit
Type of Notch
7.7 All analyses shall be in accordance with Test Methods,
Signal, %
Parallel Sided Notch 100
Practices, and Terminology A 751, and shall include all ele-
Drilled Hole 100
ments required in the carbon equivalent equation of 7.3, in
addition to titanium, phosphorus, sulfur, and boron, except that
the product analysis for boron is not required. Titanium is
TABLE 5 Permissible Variations in Wall Thickness
reported for information only and is not a cause for rejection.
Permissible Variations from
7.8 Ifoneorbothoftheproductanalysesrepresentingaheat
A
NPS Designator Specified Wall Thickness, %
Over Under fail to conform to the specified requirements, the heat shall be
1to2 ⁄2, incl. 20.0 10.0
rejected, or analyses shall be made on double the original
3 and larger 15.0 10.0
numberoftestsamplesthatfailed,eachofwhichshallconform
A
If a reduced under thickness variation is specified in the purchase order, it is
to the specified requirements.
permissible for the over thickness variation to be increased, provided that the
applicable total tolerance range in percent is not increased.
8. Mechanical Properties
8.1 Tension Test:
5.1.11 Special requirements,
8.1.1 The material shall conform to the tensile requirements
5.1.12 Supplementary requirements, and
given in Table 2 and 8.1.6. The yield strength maxima apply
5.1.13 Bar coding (see 18.3).
only to pipe NPS 8 and larger.
8.1.2 The yield strength corresponding to a total extension
6. Manufacture
under load of 0.5 % of the gage length shall be determined.
6.1 Pipe shall be manufactured by the seamless process. 8.1.3 Transverse tension tests shall be performed on pipe
Unless a specific heat treatment condition is specified in the NPS 8 and larger, or longitudinal, subject to approval by
purchase order, pipe shall be furnished in the as-rolled, purchaser. Transverse test specimens shall be either strip test
normalized, normalized and tempered, or quenched and tem- specimens or round bar test specimens, at the option of the
pered condition. manufacturer. All transverse strip test specimens shall be
A 1024/A 1024M
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 requirement for full size test specimens shall be 20 ft·lbf [27 J].
which the test specimen was cut. For pipe smaller than NPS 5, the absorbed energy requirement
for full size test specimens shall be 30 ft·lbf [40 J].
8.1.4 Longitudinal tension tests shall be performed on pipe
8.2.5 Charpy impact testing shall be performed at 32°F
smaller than NPS 8. Longitudinal test specimens shall be either
[0°C], unless a lower test temperature is specified in the
strip test specimens, full-size test specimens, or round bar test
purchase order.
specimens, at the option of the manufacturer.
8.1.5 Grades intermediate to those given in Table 2 shall be
9. Hydrostatic Test
furnished if so specified in the purchase order. For intermediate
9.1 Each length of pipe shall be subjected to the hydrostatic
grades, the difference between the specified maximum yield
test without leakage through the wall.
strength and the specified minimum yield strength and the
9.2 Each length of pipe NPS 2 or larger shall be tested, by
difference between the specified minimum tensile strength and
the manufacturer, to a minimum hydrostatic pressure calcu-
the specified minimum yield strength shall be as given inTable
lated from the following relationship:
2 for the next higher listed grade.
8.1.6 For each grade, the minimum elongation in 2 in. [50 Inch2Pound Units: P 5 2 ~St/D! 3 C (4)
mm] shall be as determined by the following equation:
SI Units: P 5 2000 ~St/D! 3 C
0.2 0.9
e 5 C A / U (2)
~ !
where:
S = specified minimum yield strength, psi [MPa],
where:
t = specified wall thickness, in. [mm],
e = minimum elongation in percent, rounded to the nearest
D = specified outside diameter, in. [mm],
percent,
C = 0.60 for pipe NPS 2 through NPS 5,
C = constant = 625 000 [1940],
2 2
0.75 for pipe larger than NPS 5 through NPS 8,
A = the lesser of 0.75 in. [485 mm ] and the cross-
0.85 for pipe larger than NPS 8 through NPS 18,
sectional area of the tension test specimen in
2 2
0.90 for pipe larger than NPS 18, and
in. [mm ], based upon the specified outside diameter
P = minimum hydrostatic test pressure, psi [kPa].
of the pipe or the nominal width of the tension test
9.3 For pipe sizes smaller than NPS 2, the test pressures
specimen and the specified wall thickness, rounded to
2 2
given in Table 3 are arbitrary. For pipe in sizes smaller than
the nearest 0.01 in. [1 mm ],
NPS 2 with specified wall thicknesses lighter than those listed,
U = specified minimum tensile strength, psi [MPa].
the test pressure for the next heavier listed specified wall
8.2 Impact Test:
thickness shall be used. For intermediate specified outside
8.2.1 Except as allowed by 8.2.2, pipe shall be Charpy
diameters for pipe sizes smaller than NPS 2, the test pressures
V-notch tested in accordance with Test Methods and Defini-
given for the next smaller specified outside diameter shall be
tionsA 370. For pipe smaller than NPS 5, such test specimens
used.
shall be taken longitudinal to the pipe axis. For pipe NPS 5 and
9.4 When computed test pressures are not an exact multiple
larger, the test specimens shall be taken transverse to the pipe
of 10 psi [100 kPa], they shall be rounded to the nearest 10 psi
axis.
[100 kPa].
8.2.2 The basic test specimen is full size Charpy V-notch.
9.5 The minimum hydrostatic test pressure required to
Where full size test specimens, either conventional or contain-
satisfy these requirements need not exceed 3000 psi [20 700
ing the original OD surface, cannot be obtained due to a
kPa]. This does not prohibit testing at a higher pressure at the
combination of specified outside diameter and specified wall
manufacturer’s option. The hydrostatic test pressure shall be
thickness, two-thirds size or half-size test specimens shall be
maintained for not less than 5 s for all pipe sizes.
used. Where combinations of specified outside diameter and
specified wall thickness do not permit half-size test specimens
10. Nondestructive Electric Test
to be obtained, there is no requirement for impact testing. In all
10.1 The entire outside surface of each pipe shall be
cases, the largest possible test specimen size shall be used,
inspectedfulllengthforlongitudinaldefectsbyeithermagnetic
except where such a test specimen size will result in absorbed
particle inspection, ultrasonic inspection, electromagnetic in-
energy values greater than 80 % of the testing machine
spection, or a combination thereof. The location of the equip-
capacity.
ment in the mill shall be at the discretion of the manufacturer;
8.2.3 When subsize test specimens are used, the require-
however,thenondestructiveinspectionshalltakeplaceafterall
ments for absorbed energy shall be the adjusted values ob-
heat treating and expansion operations, if performed, but may
tained by the following relationships, with the calculated
take place before cropping, beveling, and end sizing.
values rounded to the nearest foot pound-force [joule]:
10.2 Magnetic Particle Inspection—The depth of all imper-
For 2 3 size: N 5 R 3 0.67 (3)
/ fections revealed by magnetic particle inspection shall be
determined; and when found to be greater than 10 % of the
For 1 2 size: N 5 R 3 0.50
/
specified wall thickness, the imperfection shall be considered a
where:
defect.
N = adjusted value, ft·lbf [J], and
10.3 Ultrasonic and Electromagnetic Inspection—Any
R = value required by 8.2.4.
equipmentutilizingtheultrasonicorelectromagneticprinciples
A 1024/A 1024M
and capable of continuous and uninterrupted inspection shall 13. Dimensions and Weights [Masses] Per Unit Length
be used. The equipment shall be checked with an applicable
13.1 The dimensions and weights [masses] per unit length
reference standard as described in 10.4 at least once every 8 h
of some of the pipe sizes included in this specification are
of inspection to demonstrate the effectiveness of the inspecti
...
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