ASTM A858/A858M-07
(Specification)Standard Specification for Heat-Treated Carbon Steel Fittings for Low-Temperature and Corrosive Service
Standard Specification for Heat-Treated Carbon Steel Fittings for Low-Temperature and Corrosive Service
ABSTRACT
This specification covers heat-treated wrought carbon steel piping fittings with lowered carbon content of seamless and electric fusion-welded construction for low-temperature and corrosive service applications. These fittings are for use in pressure components where inherent notch toughness and optimum sulfide-cracking resistance are required, such as oil and gas industry piping and distribution systems. The materials shall be manufactured by forging and shaping methods which involves hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of these operations. Fittings shall be heat treated by normalizing, quenching, and tempering or stress-relieving. Product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, and copper. The fittings shall undergo tension and impact tests, and shall conform to the following mechanical requirements: yield strength, tensile strength, elongation, and notch toughness.
SCOPE
1.1 This specification covers heat-treated wrought carbon steel piping fittings with lowered carbon content of seamless and electric fusion-welded construction covered by the latest revisions in ASME B16.9, ASME B16.11, ASME B16.28, MSS-SP-75, MSS-SP-79, MSS-SP-83, or MSS-SP-95. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A 960/A 960M. These fittings are for use in pressure components where inherent notch toughness and optimum sulfide-cracking resistance are required, such as oil and gas industry piping and distribution systems.
1.2 Optional supplementary requirements are provided for fittings when a greater degree of examination is desired. One or more of the supplementary requirements may be specified in the order.
1.3 This specification does not cover cast-welding fittings or fittings machined from castings.
1.4 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. Combining values from the two systems may result in nonconformance with this specification. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Unless the other specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
General Information
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Standards Content (Sample)
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 858/A 858M – 07
Standard Specification for
Heat-Treated Carbon Steel Fittings for Low-Temperature and
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Corrosive Service
ThisstandardisissuedunderthefixeddesignationA858/A858M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* A370 TestMethodsandDefinitionsforMechanicalTesting
of Steel Products
1.1 This specification covers heat-treated wrought carbon
A960/A960M Specification for Common Requirements
steel piping fittings with lowered carbon content of seamless
for Wrought Steel Piping Fittings
and electric fusion-welded construction covered by the latest
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2.3 ASME Standards:
revisions in ASME B16.9, ASME B16.11, ASME B16.28,
B16.9 Steel Butt-Welding Fittings
MSS-SP-75,MSS-SP-79,MSS-SP-83,orMSS-SP-95.Fittings
B16.11 ForgedSteelFittings,SocketWeldingandThreaded
differing from these ASME and MSS standards shall be
B16.28 Wrought Steel Buttwelding Short Radius Elbows
furnished in accordance with Supplementary Requirement S58
and Returns
of Specification A960/A960M. These fittings are for use in
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2.4 MSS Standards:
pressure components where inherent notch toughness and
MSS-SP-25 The Standard Marking System of Valves,
optimum sulfide-cracking resistance are required, such as oil
Fittings, Flanges and Unions
and gas industry piping and distribution systems.
MSS-SP-75 Specification for High Test Wrought Butt-
1.2 Optional supplementary requirements are provided for
Welding Fittings
fittingswhenagreaterdegreeofexaminationisdesired.Oneor
MSS-SP-79 Socket Welding Reducer Inserts
more of the supplementary requirements may be specified in
MSS-SP-83 Steel Pipe Unions, Socket-Welding and
the order.
Threaded
1.3 Thisspecificationdoesnotcovercast-weldingfittingsor
MSS-SP-95 Swage(d) Nipples and Bull Plugs
fittings machined from castings.
2.5 ASME Boiler and Pressure Vessel Code:
1.4 The values stated in either inch-pound units or SI units
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Section V Nondestructive Examination
are to be regarded separately as standard. Within the text, the
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Section VIII Division 1, Pressure Vessels
SIunitsareshowninbrackets.Combiningvaluesfromthetwo
Section IX Welding and Brazing Qualifications
systems may result in nonconformance with this specification.
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2.6 American Society of Nondestructive Testing:
The values stated in each system are not exact equivalents;
SNT-TC-1A Recommended Practice for Nondestructive
therefore,eachsystemmustbeusedindependentlyoftheother.
Testing Personnel Qualification and Certification
Unless the other specifies the applicable “M” specification
designation (SI units), the material shall be furnished to
3. Ordering Information
inch-pound units.
3.1 In addition to the requirements of Specification A960/
2. Referenced Documents A960M, the following ordering information applies: require-
ments for certification of the test report.
2.1 In addition to those reference documents listed in
Specification A960/A960M, the following list of standards
4. General Requirements
apply to this specification.
2 4.1 Products furnished to this specification shall conform to
2.2 ASTM Standards:
the requirements of Specification A960/A960M, including
any supplementary requirements that are indicated in the
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This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
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A01.22onSteelForgingsandWroughtFittingsforPipingApplicationsandBolting 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.
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Current edition approved March 1, 2007. Published April 2007. Originally AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
approved in 1986. Last previous edition approved in 2006 as A858/A858M–06. Industry, 1815 N. Fort Myer Drive, Arlington, VA 22209.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Society of Automotive Engineers (SAE), 400 Commonwealth
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Dr., Warrendale, PA 15096-0001.
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Standards volume information, refer to the standard’s Document Summary page on AvailablefromTheAmericanSocietyforNondestructiveTesting(ASNT),P.O.
the ASTM website. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518.
*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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