Standard Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service

SCOPE
1.1 This specification covers forged carbon and alloy steel flanges intended primarily for petroleum and gas pipelines in areas subject to low ambient temperatures. Included are flanges to specified dimensions or to dimensional standards such as those MSS, ASME, and API specifications that are referenced in Section 2.
1.2 Supplementary requirements are provided for use when additional requirements are desired. These shall apply only when specified individually by the purchaser in the order.
1.3 Eight grades, four yield-strength classes, and three different notch toughness levels are included.
1.4 The availability of a particular size of flange of a specific grade and class is limited only by the capability of the composition to meet the specified mechanical property requirements. However, current practice normally limits the following:(a) Grade L1 to Classes 1 and 2, (b) Grade L2 to Classes 1, 2, and 3, (c) Grade L3 to Classes 1, 2, and 3,(d) Grade L4 to Classes 1, 2, and 3,(e) Grade L7 to Classes 1 and 2, and (f) Grades L5, L6, and L8 are generally available in any class.
1.5 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

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ASTM A707/A707M-02 - Standard Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 707/A 707M – 02
Standard Specification for
Forged Carbon and Alloy Steel Flanges for Low-
1
Temperature Service
This standard is issued under the fixed designationA 707/A 707M; 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 * 2. Referenced Documents
1.1 This specification covers forged carbon and alloy steel 2.1 In addition to those reference documents listed in
flanges intended primarily for petroleum and gas pipelines in Specification A 961, the following list of standards apply to
areassubjecttolowambienttemperatures.Includedareflanges this specification:
to specified dimensions or to dimensional standards such as 2.2 ASTM Standards:
those MSS, ASME, and API specifications that are referenced A 388/A 388M Practice for Ultrasonic Examination of
2
in Section 2. Heavy Steel Forgings
1.2 Supplementary requirements are provided for use when A 788 Specification for Steel Forgings, General Require-
2
additional requirements are desired. These shall apply only ments
when specified individually by the purchaser in the order. A 961 Specification for Common Requirements for Steel
1.3 Eight grades, four yield-strength classes, and three Flanges, Forged Fittings, Valves, and Parts for Piping
3
different notch toughness levels are included. Applications
1.4 The availability of a particular size of flange of a 2.3 MSS Standards:
4
specific grade and class is limited only by the capability of the SP 44 Steel Pipeline Flanges
composition to meet the specified mechanical property require- 2.4 API Standard:
5
ments. However, current practice normally limits the follow- 605 Large Diameter Carbon Steel Flanges
ing: 2.5 ASME Boiler and Pressure Vessel Code:
6
(a) Grade L1 to Classes 1 and 2, Section IX Welding Qualifications
6
(b) Grade L2 to Classes 1, 2, and 3, Section VIII Division I, Part UG-84
(c) Grade L3 to Classes 1, 2, and 3, 2.6 ASME Standard:
(d) Grade L4 to Classes 1, 2, and 3, B 16.5 Dimensional Standards for Steel Pipe Flanges and
6
(e) Grade L7 to Classes 1 and 2, and Flanged Fittings
(f) Grades L5, L6, and L8 are generally available in any 2.7 AWS Standards:
7
class. A 5.1 Mild Steel Covered Electrodes
7
1.5 This specification is expressed in both inch-pound units A 5.5 Low-Alloy Steel Covered Arc-Welding Electrodes
and in SI units. However, unless the order specifies the
3. Terminology
applicable “M” specification designation (SI units), the mate-
3.1 Definitions:
rial shall be furnished to inch-pound units.
1.6 The values stated in either inch-pound units or SI units 3.1.1 flakes—short discontinuous internal fissures attributed
to stresses produced by localized transformation and decreased
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each solubility of hydrogen during cooling after hot working.
system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
2
Annual Book of ASTM Standards, Vol 01.05.
cation.
3
Annual Book of ASTM Standards, Vol 01.01.
4
AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602.
1 5
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Available from The American Petroleum Institute (API), 1220 L. St., NW,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Washington, DC 20005.
6
A01.22 on Steel Forgings and Wrought Fittings for PipingApplications and Bolting Available from American Society of Mechanical Engineers (ASME), ASME
Materials for Piping and Special Purpose Applications. International Headquarters, Three Park Ave., New York, NY 10016-5990.
7
Current edition approved Sept. 10, 2002. Published November 2002. Originally Available from The American Welding Society (AWS), 550 NW LeJeune Rd.,
published as A 707 – 74. Last previous edition A 707/A 707M – 00a. Miami, FL 33126.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 707/A 707M – 02
3.1.2 linear surface imperfection (or indication)—animper- 6.2 The finished product shall be a forging as defined by 3
fection or indication with a length at least three times its width. (only) of Specification A 788.
4. Ordering Information
7. Heat Treatment
4.1 It is the purchaser’s responsibility to specify in the
7.1 After
...

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