ASTM A1014/A1014M-06
(Specification)Standard Specification for Precipitation-Hardening Bolting Material (UNS N07718) for High Temperature Service
Standard Specification for Precipitation-Hardening Bolting Material (UNS N07718) for High Temperature Service
ABSTRACT
This specification covers a precipitation hardening bolting material (UNS N07718) for high temperature service. The alloy shall be multiple melted using consumable electrode practice in the remelt cycle or shall be induction melted under vacuum. Requirements for solution treatment, precipitation heat treatment, straightening, and thread forming by rolling are detailed. Remelt ingots shall conform to the chemical composition requirements (as to chemical and product analyses) prescribed for the following elements: carbon, manganese, silicon, phosphorus, sulfur, chromium, cobalt, molybdenum, columbium, titanium, aluminum, boron, iron, copper, and nickel. Tensile, hardness, and stress rupture tests shall be performed and test specimen shall meet the requirements specified for tensile strength, yield strength, elongation, Brinell hardness, and stress rupture. The method of determining the minimum full size breaking strength for headed fastener is given. Metallography shall be taken for microstructure and macrostructure properties including grain size and flow lines.
SCOPE
1.1 This specification covers a precipitation hardening bolting material (UNS N07718) for high temperature service.
1.2 This specification is expressed in both inch-pound and in SI units. However, unless the order specifies the applicable "M" designation (SI units), the material shall be furnished to inch-pound units.
1.3 The values stated in either inch-pounds 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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Standards Content (Sample)
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Designation: A 1014/A 1014M – 06
Standard Specification for
Precipitation-Hardening Bolting Material (UNS N07718) for
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High Temperature Service
This standard is issued under the fixed designation A 1014/A 1014M; 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* 2.2 ANSI Standards:
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B1.1 Screw Threads
1.1 This specification covers a precipitation hardening bolt-
2.3 SAE Standards:
ing material (UNS N07718) for high temperature service.
AS 7467 Bolts And Screws, Nickel Alloy, UNS N07718
1.2 This specification is expressed in both inch-pound and
Tensile Strength 185 KSI [1275 MPa] Stress Rupture
in SI units. However, unless the order specifies the applicable
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Rated Procurement Specification
“M” designation (SI units), the material shall be furnished to
inch-pound units.
3. Ordering Information
1.3 The values stated in either inch-pounds or SI units are to
3.1 Ordering—It shall be the responsibility of the purchaser
be regarded separately as standard.Within the text, the SI units
to specify all requirements that are necessary for product under
are shown in brackets.The values stated in each system are not
this specification including any supplementary ones and those
exact equivalents; therefore, each system must be used inde-
included in the ordering information required by Specification
pendentlyoftheother.Combiningvaluesfromthetwosystems
A 962/A 962M.
may result in nonconformance with the specification.
4. Common Requirements
2. Referenced Documents
2 4.1 Common Requirements—Product furnished to this
2.1 ASTM Standards:
specification shall conform to Specification A 962/A 962M,
A 370 Test Methods and Definitions for MechanicalTesting
including any supplementary requirements indicated on the
of Steel Products
purchase order. Failure to comply with Specification A 962/
A 962/A 962M Specification for Common Requirements
A 962Mconstitutesnon-conformancewiththisspecification.If
forSteelFastenersorFastenerMaterials,orBoth,Intended
the requirements of this specification conflict with those of
for Use at Any Temperature from Cryogenic to the Creep
Specification A 962/A 962M, then the requirements of this
Range
specification shall prevail.
B 637 Specification for Precipitation-Hardening Nickel Al-
loy Bars, Forgings, and Forging Stock for High-
5. Manufacture
Temperature Service
5.1 Melting Process—Alloy shall be multiple melted using
B 880 SpecificationforGeneralRequirementsforChemical
consumable electrode practice in the remelt cycle or shall be
Check Analysis Limits for Nickel, Nickel Alloys and
induction melted under vacuum. If consumable electrode
Cobalt Alloys
remelting is not performed in vacuum, electrodes produced by
E112 Test Methods for Determining Average Grain Size
vacuum induction melting shall be used.
E 292 Test Methods for Conducting Time-for-Rupture
5.2 Heat Treatment:
Notch Tension Tests of Materials
5.2.1 Solution Treatment—Material shall be solution heat
treated at a temperature within the range of 1725 to 1850 °F
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
[940 to 1010 °C], held at the selected temperature for a time
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
commensurate with cross-sectional thickness, and cooled at a
A01.22 on Steel Forgings and Wrought Fittings for PipingApplications and Bolting
rate equivalent to an air cool or faster.
Materials for Piping and Special Purpose Applications.
Current edition approved March 1, 2006. Published April 2006. Originally
approved in 2000. Last previous edition approved in 2003 as A 1014 – 03.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036.
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Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001.
*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 1014/A 1014M – 06
5.2.1.1 Temperature Variation—Solution treating tempera-
n = the number of threads per inch.
tures shall be controlled in the range of 6 25 °F [6 14 °C].
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@As 5 0.785 ~D – 0.9382P! # (3)
5.2.2 Precipitation Heat Treatment—Material shall be
heated to a temperature of 1325 °F [720
...
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