ASTM A522/A522M-06

Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service

SCOPE
1.1 This specification covers 8 and 9 % nickel-alloy steel forged or rolled flanges, fittings, valves, and parts intended for use in welded pressure vessels for low-temperature service. The specification is applicable to forgings with maximum section thickness of 3 in. [75 mm] in the double normalized and tempered condition and 5 in. [125 mm] in the quenched and tempered condition. Forgings under this specification are intended for service at operating temperatures not lower than -320oF [-196oC] for Type I or -275oF [-170oC] for Type II or higher than 250oF [o121C].
1.2 Material under this specification is available in two types having different chemical compositions as follows:TypeNominal Nickel Content, % I9 II8
1.3 This specification is expressed in both inch-pound units and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
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 the specification.

General Information

• Status: Historical
• Publication Date: 30-Nov-2006
• ICS: 23.040.40 - Metal fittings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.22 - Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications

Relations

• Replaces: ASTM A522/A522M-01 - Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service
• Effective Date: 01-Dec-2006
• Replaced By: ASTM A522/A522M-07 - Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service
• Effective Date: 01-Mar-2007
• Referred By: ASTM A961/A961M-23 - Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
• Effective Date: 01-Dec-2006

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 522/A 522M – 06
Standard Specification for
Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges,
1
Fittings, Valves, and Parts for Low-Temperature Service
ThisstandardisissuedunderthefixeddesignationA522/A522M;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* A788/A788M Specification for Steel Forgings, General
2
Requirements
1.1 This specification covers 8 and 9% nickel-alloy steel
A961/A961M Specification for Common Requirements
forged or rolled flanges, fittings, valves, and parts intended for
for Steel Flanges, Forged Fittings, Valves, and Parts for
use in welded pressure vessels for low-temperature service.
Piping Applications
The specification is applicable to forgings with maximum
section thickness of 3 in. [75 mm] in the double normalized
3. General Requirements and Ordering Information
and tempered condition and 5 in. [125 mm] in the quenched
3.1 Product furnished to this specification shall conform to
and tempered condition. Forgings under this specification are
the requirements of SpecificationA961, including any supple-
intended for service at operating temperatures not lower than
mentary requirements that are indicated in the purchase order.
−320 °F [−196 °C] for Type I or −275 °F [−170 °C] for Type
FailuretocomplywiththerequirementsofSpecificationA961
II or higher than 250 °F [121 °C].
constitutes nonconformance with this specification.
1.2 Material under this specification is available in two
3.2 It is the purchaser’s responsibility to specify in the
types having different chemical compositions as follows:
purchase order all ordering information necessary to furnish
Type Nominal Nickel Content, %
the needed material. Examples of such information include but
I 9
II 8
are not limited to the ordering information in Specification
A961 and following:
1.3 This specification is expressed in both inch-pound units
3.2.1 Any supplementary requirements, and
andSIunits.However,unlesstheorderspecifiestheapplicable
3.2.2 Additional requirements, (See 4.5, 5.2, 6.1, 7.2, and
“M” specification designation (SI units), the material shall be
10.3).
furnished to inch-pound units.
1.4 The values stated in either inch-pound units or SI units
4. Materials and Manufacture
are to be regarded separately as standard. Within the text, the
4.1 The steel shall be produced in accordance with the
SI units are shown in brackets. The values stated in each
melting process section of Specification A788.
system are not exact equivalents; therefore, each system must
4.2 Material for forgings shall consist of ingots, or either
beusedindependentlyoftheother.Combiningvaluesfromthe
forged or rolled blooms, billets, or bars.
two systems may result in nonconformance with the specifi-
4.3 The finished product shall be a forging as defined in the
cation.
Terminology Section of Specification A788.
2. Referenced Documents
4.4 Except for flanges of all types, hollow cylindrically
3
shaped parts may be made from hot-rolled or forged bar,
2.1 ASTM Standards:
provided that the axial length of the part is approximately
A370 TestMethodsandDefinitionsforMechanicalTesting
paralleltothemetalflowlinesofthestock.Exceptforalltypes
of Steel Products
of flanges, elbows, return bends, tees, and header tees, other
parts up to and including NPS 4 may be machined from
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
hot-rolled or forged bar.
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
4.5 When specified in the order, the manufacturer shall
A01.22onSteelForgingsandWroughtFittingsforPipingApplicationsandBolting
Materials for Piping and Special Purpose Applications. submit for purchaser’s approval a sketch showing the shape of
Current edition approved Dec. 1, 2006. Published December 2006. Originally
the rough forging before machining.
approved in 1964. Last previous edition approved in 2001 as A522/A522M–01.
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
5. Chemical Composition
cation SA-522 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 The steel shall conform to the requirements of Table 1.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.2 If required by the purchaser, product analysis may be
Standards volume information, refer to the standard’s Document Summary page on
performed in accordance with the requirements of A961.
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
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