ASTM A860/A860M-00
(Specification)Standard Specification for Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
Standard Specification for Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
SCOPE
1.1 This specification covers wrought high-strength low-alloy steel butt-welding fittings of seamless and electric fusion-welded construction covered by the latest revisions of ANSI B16.9, ANSI 16.28, and MSS-SP-75. Butt-welding fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960. These fittings are for use in high-pressure gas and oil transmission 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. 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 this specification. Unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
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Designation: A 860/A 860M – 00
Standard Specification for
Wrought High-Strength Low-Alloy Steel Butt-Welding
1
Fittings
ThisstandardisissuedunderthefixeddesignationA860/A860M;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 AWS5.18 Specification for Carbon Steel Metals for Gas
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Shielded Arc Welding
1.1 This specification covers wrought high-strength low-
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2.3 ASME Boiler and Pressure Vessel Code:
alloysteelbutt-weldingfittingsofseamlessandelectricfusion-
Section V, Nondestructive Examination
welded construction covered by the latest revisions of ANSI
Section VIII, Division 1, Pressure Vessels
B16.9, ANSI 16.28, and MSS-SP-75. Butt-welding fittings
differing from these ASME and MSS standards shall be
3. Ordering Information
furnished in accordance with Supplementary Requirement S58
3.1 In addition to the requirements of Specification A960,
of Specification A960. These fittings are for use in high-
the following ordering information applies:
pressure gas and oil transmission and distribution systems.
3.1.1 Grade Symbol,
1.2 Optional supplementary requirements are provided for
3.1.2 Requirements for certification of test report.
fittingswhenagreaterdegreeofexaminationisdesired.Oneor
more of the supplementary requirements may be specified in
4. General Requirements
the order.
4.1 Product furnished to this specification shall conform to
1.3 Thisspecificationdoesnotcovercast-weldingfittingsor
the requirements of SpecificationA960, including any supple-
fittings machined from castings.
mentary requirements that are indicated in the purchase order.
1.4 The values stated in either inch-pound units or SI units
Failure to comply with the general requirements of Specifica-
are to be regarded separately as standard. Within the text, the
tionA960 constitutes nonconformance with this specification.
SI units are shown in brackets. The values stated in each
In case of conflict between the requirements of this specifica-
system are not exact equivalents; therefore, each system must
tion and Specification A960, this specification shall prevail.
beusedindependentlyoftheother.Combiningvaluesfromthe
two systems may result in nonconformance with this specifi-
5. Materials and Manufacture
cation. Unless the order specifies the applicable “M” specifi-
5.1 The material for fittings shall be fully killed fine-grain
cation designation (SI units), the material shall be furnished to
material made by a melting process that is intended to produce
inch-pound units.
rounded, well dispersed, fine sulphide inclusions, that promote
good notch toughness, assists in the resistance to hydrogen
2. Referenced Documents
induced cracking, and for weldability suitable for field weld-
2.1 ASTM Standards:
ing.
A530/A530M Specification for General Requirements for
2 5.2 Starting materials shall consist of plate, sheet, forgings,
Specialized Carbon and Alloy Steel Pipe
forging quality bar, and seamless or fusion-welded tubular
A 960 Specification for Common Requirements for
2 products with filler metal added. The chemical composition
Wrought Steel Piping Fittings
shall conform to Table 1.
2.2 AWS Standard:
5.3 Astartingmaterialthatspecificallyrequirestheaddition
of any element beyond those listed in Table 1 is not permitted.
1
This does not preclude the use of deoxidizers.
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
Stainless Steel, and RelatedAlloysand is the direct responsibility of Subcommittee
A01.22on Steel Forgings and Wrought Fittings for PipingApplications and Bolting
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Materials for Piping and Special Purpose Applications. Available fromAmerican Welding Society, 550 N. W. Lajeune Rd., Miami, FL
Current edition approved Dec. 10, 2000. Published February 2001. Originally 33135.
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published as A860/A860M–86. Last previous edition A860/A860M–96. Available from American Society of Mechanical Engineers, 345 E. 47th St.,
2
Annual Book of ASTM Standards, Vol 01.01. New York, NY 10017.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 860/A 860M – 00
TABLE 1 Chemical Requirements
method.AcceptableteesshallbemarkedwiththesymbolPTor
Composition % MT, as applicable, to indicate compliance. NDE personnel
shall be qualified in accordance with SNT-TC-1A.
Heat
Analysis
5.9 All caps machined from bar stock shall be examined by
A
Carbon 0.20 liquid penetrant or magnetic particle in accordance with
Manganese 1.00–1.45 All values are
Supplementary Requirements S69 or S70 of Specification
Phosphorus 0.030 maximum unless
A960, and with p
...
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