ASTM A714-99(2003)
(Specification)Standard Specification for High-Strength Low-Alloy Welded and Seamless Steel Pipe
Standard Specification for High-Strength Low-Alloy Welded and Seamless Steel Pipe
ABSTRACT
This specification covers standard requirements for seamless and welded high-strength low-alloy steel pipe NPS ½ to NPS 26, inclusive. The material shall be utilized in pressure piping service, and other general purposes, where savings in weight or added durability are important. Heat and product analysis shall be performed wherein different grades of steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, copper, vanadium, nickel, chromium, and molybdenum. The material shall conform to the required tensile properties such as tensile strength, yield strength, and elongation for the grade of Class 2 or Class 4 pipe specified. The steel shall undergo the following mechanical tests, namely: bend test, flattening test, and hydrostatic test.
SCOPE
1.1 This specification covers seamless and welded high-strength low-alloy steel pipe NPS 1/2 to NPS 26, inclusive. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification. This material is intended for pressure piping service, and other general purposes, where savings in weight or added durability are important.
Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as "nominal diameter," "size," and "nominal size."
Note 2—A comprehensive listing of standardized pipe dimensions is contained in ANSI Standard B36.10.
1.2 Class—These high-strength low-alloy steels have enhanced resistance to general atmospheric corrosion by weathering as commonly encountered in rural, urban, marine, and industrial environments. They are supplied in two classes: Class 2, having corrosion resistance equivalent to that of carbon steel with copper (0.20 minimum Cu); and Class 4, having corrosion resistance substantially better than that of Class 2 (Note 3). Class 4 steels when properly exposed to the atmosphere can be used bare (unpainted) for many applications.
Note 3—For methods of estimating the atmospheric corrosion resistance of low alloy steels see Guide G 101 or actual data.
1.3 Type—Pipe may be furnished in the following types of manufacturing processes:
Type F—Furnace-butt welded, continuous welded,
Type E—Electric-resistance welded, and
Type S—Seamless.
1.3.1 Pipe ordered under this specification is suitable for welding.
1.3.2 Type E pipe may be furnished either nonexpanded or cold-expanded at the option of the manufacturer.
1.3.3 Types F, E, and S pipe are commonly furnished in nonheat-treated condition. Type S pipe may be furnished in normalized (or other) heat-treated condition, when so specified.
1.3.4 Types F, E, and S pipe in single random lengths may be furnished with hot-dipped galvanized coating of zinc, subject to inquiry to the producer.
1.3.5 Couplings, when furnished, shall be of the same class, heat-treated condition, and grade of material as the pipe ordered.
1.4 Grade—This specification designates eight grades of steel composition as listed in and corresponding tensile requirements for the grades as listed in .
1.4.1 For Class 2 pipe, Grade I, II, or III shall be specified, and copper-bearing steel is required as specified in .
1.4.2 For Class 4 pipe, Grade IV, V, VI, VII, or VIII shall be specified. Alternatively, for Class 4, Type S, and Type E pipe, a steel composition corresponding to a grade listed in of Specification A 588/A 588M may be specified, subject to negotiation.
1.5 When Class 4 pipe is joined by welding or is used in welded construction, the user is cautioned that the selection of welding procedure and resultant composition of fused metal should be suitable for Class 4 material and the intended service.
1.6 The values stated in inch-pound units are to be regarded as the standard.
General Information
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Standards Content (Sample)
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Designation: A 714 – 99 (Reapproved 2003)
Standard Specification for
1
High-Strength Low-Alloy Welded and Seamless Steel Pipe
This standard is issued under the fixed designation A 714; 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 1.3.4 Types F, E, and S pipe in single random lengths may
be furnished with hot-dipped galvanized coating of zinc,
1.1 This specification covers seamless and welded high-
1 subject to inquiry to the producer.
strength low-alloy steel pipe NPS ⁄2 to NPS 26, inclusive. Pipe
1.3.5 Couplings, when furnished, shall be of the same class,
having other dimensions may be furnished provided such pipe
heat-treated condition, and grade of material as the pipe
complies with all other requirements of this specification. This
ordered.
material is intended for pressure piping service, and other
1.4 Grade—This specification designates eight grades of
general purposes, where savings in weight or added durability
steel composition as listed inTable 1 and corresponding tensile
are important.
requirements for the grades as listed in Table 2.
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
1.4.1 For Class 2 pipe, Grade I, II, or III shall be specified,
been substituted in this standard for such traditional terms as “nominal
and copper-bearing steel is required as specified in Table 1.
diameter,” “size,” and “nominal size.”
1.4.2 For Class 4 pipe, Grade IV,V,VI,VII, orVIII shall be
NOTE 2—A comprehensive listing of standardized pipe dimensions is
specified. Alternatively, for Class 4, Type S, and Type E pipe,
contained in ANSI Standard B36.10.
a steel composition corresponding to a grade listed in Table 1
1.2 Class—These high-strength low-alloy steels have en-
of Specification A 588/A 588M may be specified, subject to
hanced resistance to general atmospheric corrosion by weath-
negotiation.
ering as commonly encountered in rural, urban, marine, and
1.5 When Class 4 pipe is joined by welding or is used in
industrial environments. They are supplied in two classes:
welded construction, the user is cautioned that the selection of
Class 2, having corrosion resistance equivalent to that of
welding procedure and resultant composition of fused metal
carbon steel with copper (0.20 minimum Cu); and Class 4,
should be suitable for Class 4 material and the intended
having corrosion resistance substantially better than that of
service.
Class 2 (Note 3). Class 4 steels when properly exposed to the
1.6 The values stated in inch-pound units are to be regarded
atmosphere can be used bare (unpainted) for many applica-
as the standard.
tions.
2. Referenced Documents
NOTE 3—For methods of estimating the atmospheric corrosion resis-
2
tance of low alloy steels see Guide G 101 or actual data.
2.1 ASTM Standards:
A 53/A 53M Specification for Pipe, Steel, Black and Hot-
1.3 Type—Pipe may be furnished in the following types of
Dipped, Zinc-Coated, Welded and Seamless
manufacturing processes:
A 90 TestMethodforWeight[Mass]ofCoatingonIronand
Type F—Furnace-butt welded, continuous welded,
Steel Articles with Zinc or Zinc-Alloy Coatings
Type E—Electric-resistance welded, and
A 370 Test Methods and Definitions for MechanicalTesting
Type S—Seamless.
of Steel Products
1.3.1 Pipe ordered under this specification is suitable for
A 588/A 588M Specification for High Strength Low-Alloy
welding.
Structural Steel with 50 ksi [345 MPa] Minimum Yield
1.3.2 Type E pipe may be furnished either nonexpanded or
Point to 4-in. [100-mm] Thick
cold-expanded at the option of the manufacturer.
A 700 Practices for Packaging, Marking, and Loading
1.3.3 Types F, E, and S pipe are commonly furnished in
Methods for Steel Products for Domestic Shipment
nonheat-treated condition. Type S pipe may be furnished in
A 751 Test Methods, Practices, and Terminology for
normalized(orother)heat-treatedcondition,whensospecified.
Chemical Analysis of Steel Products
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
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Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.09 on Carbon Steel Tubular Products. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Mar. 10, 1999. Published May 1999. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1975. Last previous edition approved in 1996 as A 714 – 96. the ASTM website.
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