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ASTM A522/A522M-95b

(Specification)

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

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
09-Sep-2001
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
Current Stage
Ref Project

Relations

Replaced By
ASTM A522/A522M-95b(2001) - Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service
Effective Date
10-Sep-2001
Referred By
ASTM A961/A961M-23 - Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
Effective Date
10-Sep-2001

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ASTM A522/A522M-95b - Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature ServiceASTM A522/A522M-95b - Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service
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ASTM A522/A522M-95b - Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 522/A522M – 95b An American National Standard
Standard Specification for
Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges,
1
Fittings, Valves, and Parts for Low-Temperature Service
This standard is issued under the fixed designation A 522/A522M; 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 A 788 Specification for Steel Forgings, General Require-
4
2
ments
1.1 This specification covers 8 and 9 % nickel-alloy steel
forged or rolled flanges, fittings, valves, and parts intended for
3. Ordering Information
use in welded pressure vessels for low-temperature service.
3.1 It is the purchaser’s responsibility to specify in the
The specification is applicable to forgings with maximum
purchase order all ordering information necessary to purchase
section thickness of 3 in. [75 mm] in the double normalized
the needed material. Examples of such information include but
and tempered condition and 5 in. [125 mm] in the quenched
are not limited to the following:
and tempered condition. Forgings under this specification are
3.1.1 Quantity,
intended for service at operating temperatures not lower than
3.1.2 Size and pressure class or dimensions (Tolerances
−320°F [−196°C] for Type I or −275°F [−170°C] for Type II or
and surface finishes should be included),
higher than 250°F [121°C].
3.1.3 Specification number and type (The year date should
1.2 Material under this specification is available in two
be included),
types having different chemical compositions as follows:
3.1.4 Supplementary requirements, and
Type Nominal Nickel Content, %
3.1.5 Additional requirements, (See 4.4, 13.6, 16.1, 17.1,
I 9
II 8
17.2, and 18.3).
1.3 Supplementary requirements S1 and S2 are optional and
4. Materials and Manufacture
shall apply when specified by the purchaser.
4.1 The steel shall be produced in accordance with the
1.4 This specification is expressed in both inch-pound units
melting process section of Specification A 788.
and SI units. However, unless the order specifies the applicable
4.2 Material for forgings shall consist of ingots, or either
“M” specification designation (SI units), the material shall be
forged or rolled blooms, billets, or bars.
furnished to inch-pound units.
4.3 The finished product shall be a forging as defined in the
1.5 The values stated in either inch-pound units or SI units
Terminology Section of Specification A 788.
are to be regarded separately as standard. Within the text, the
4.4 When specified in the order, the manufacturer shall
SI units are shown in brackets. The values stated in each
submit for purchaser’s approval a sketch showing the shape of
system are not exact equivalents; therefore, each system must
the rough forging before machining.
be used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
5. Chemical Composition
cation.
5.1 The steel shall conform to the requirements for chemical
2. Referenced Documents composition as prescribed in Table 1. Test Methods, Practices,
and Terminology A 751 shall apply.
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Test-
6. Tensile Requirements
3
ing of Steel Products
6.1 The forgings shall conform to the tensile property
A 751 Test Methods, Practices, and Terminology for Chem-
3 requirements prescribed in Table 2.
ical Analysis of Steel Products
6.2 The forgings shall be tested in accordance with the latest
issue of Test Methods and Definitions A 370.
1
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
7. Impact Requirements
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.22 on Valves and Fittings.
7.1 Impact tests shall be conducted at −320°F [−195°C] for
Current edition approved June 15, 1995. Published August 1995. Originally
Type I and at −275°F [−170°C] for Type II, except when a
published as A 522 – 64. Last previous edition A 522/A 522M – 95a.
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-522 in Section II of that Code.
3 4
Annual Book of ASTM Standards, Vol 01.03. Annual Book of ASTM Standards, Vol 01.05.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 522/A522M
TABLE 1 Chemical Requirements
minimum of 2 h for thicknesses up to 1 in. [25 mm]. For
thicknesses over 1 in. [25 mm], a minimum additional holding
Composition, %
time in the ratio of 1 h/in. (2.4 min/mm) of thickness in excess
Type I Type II
of 1 in. [25 mm] shall be added. Cool at a m
...

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