ASTM A522/A522M-14
(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
ABSTRACT
This specification covers the 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. Two types of materials are specified according to the chemical composition: type I and type II. Materials for forgings shall consist of ingots, or either forged or rolled blooms, billets, or bars. Except for all types of flanges, elbows, return bends, tees, and header tees, other parts including NPS 4 may be machined from hot-rolled or forged bar. The steel shall conform to the specified chemical requirements for carbon, manganese, phosphorus, sulfur, silicon, and nickel. The following methods of heat treatment shall be used: quenched and tempered and double normalized and tempered. Two tests shall be done to meet the mechanical requirements of the material: tension test and Charpy impact test.
SCOPE
1.1 This specification2 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 −320 °F [−196 °C] for Type I or −275 °F [−170 °C] for Type II or higher than 250 °F [121 °C].
1.2 Material under this specification is available in two types having different chemical compositions as follows:
Type
Nominal Nickel Content, %
I
II
9
8
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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Designation: A522/A522M −14
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 designationA522/A522M; the number immediately following the designation indicates the year
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* A788/A788MSpecification for Steel Forgings, General Re-
2 quirements
1.1 This specification covers 8 and 9% nickel-alloy steel
A961/A961MSpecification for Common Requirements for
forged or rolled flanges, fittings, valves, and parts intended 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
and tempered condition. Forgings under this specification are
3.1 Product furnished to this specification shall conform to
intended for service at operating temperatures not lower than
the requirements of Specification A961/A961M, including any
−320 °F [−196 °C] for Type I or −275 °F [−170 °C] for Type
supplementary requirements that are indicated in the purchase
II or higher than 250 °F [121 °C].
order.FailuretocomplywiththerequirementsofSpecification
A961/A961M constitutes nonconformance with this specifica-
1.2 Material under this specification is available in two
tion.
types having different chemical compositions as follows:
Type Nominal Nickel Content, %
3.2 It is the purchaser’s responsibility to specify in the
I 9
purchase order all ordering information necessary to furnish
II 8
the needed material. Examples of such information include but
1.3 This specification is expressed in both inch-pound units
are not limited to the ordering information in Specification
andSIunits.However,unlesstheorderspecifiestheapplicable
A961/A961M and following:
“M” specification designation (SI units), the material shall be
3.2.1 Any supplementary requirements, and
furnished to inch-pound units.
3.2.2 Additional requirements, (See 4.5, 5.2, 6.1, 7.2, and
1.4 The values stated in either inch-pound units or SI units
10.3).
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each
4. Materials and Manufacture
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values 4.1 The steel shall be produced in accordance with the
from the two systems may result in non-conformance with the melting process section of Specification A788/A788M.
standard.
4.2 Material for forgings shall consist of ingots, or either
forged or rolled blooms, billets, or bars.
2. Referenced Documents
3
4.3 The finished product shall be a forging as defined in the
2.1 ASTM Standards:
Terminology Section of Specification A788/A788M.
1
4.4 Except for flanges of all types, hollow cylindrically
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
shaped parts may be made from hot-rolled or forged bar,
A01.22onSteelForgingsandWroughtFittingsforPipingApplicationsandBolting
provided that the axial length of the part is approximately
Materials for Piping and Special Purpose Applications.
paralleltothemetalflowlinesofthestock.Exceptforalltypes
Current edition approved Oct. 1, 2014. Published October 2014. Originally
approvedin1964.Lastpreviouseditionapprovedin2013sA522/A522M–13.DOI: of flanges, elbows, return bends, tees, and header tees, other
10.1520/A0522_A0522M-14.
parts up to and including NPS 4 may be machined from
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
hot-rolled or forged bar.
cation SA-522 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.5 When specified in the order, the manufacturer shall
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
submit for purchaser’s approval a sketch showing the shape of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the rough forging before machining.
*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
1
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A522/A522M − 14
TABLE 2 Tensile Requirements at Room Temperature
5. Chemical Composition
Tensile
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A522/A522M − 13 A522/A522M − 14
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 A522/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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
2
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 −320 °F [−196 °C] for Type I
or −275 °F [−170 °C] for Type II or higher than 250 °F [121 °C].
1.2 Material under this specification is available in two types having different chemical compositions as follows:
Type Nominal Nickel Content, %
I 9
II 8
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 may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents
3
2.1 ASTM Standards:
A788/A788M Specification for Steel Forgings, General Requirements
A961/A961M Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping
Applications
3. General Requirements and Ordering Information
3.1 Product furnished to this specification shall conform to the requirements of Specification A961/A961M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the requirements of Specification
A961/A961M constitutes nonconformance with this specification.
3.2 It is the purchaser’s responsibility to specify in the purchase order all ordering information necessary to furnish the needed
material. Examples of such information include but are not limited to the ordering information in Specification A961/A961M and
following:
3.2.1 Any supplementary requirements, and
3.2.2 Additional requirements, (See 4.5, 5.2, 6.1, 7.2, and 10.3).
4. Materials and Manufacture
4.1 The steel shall be produced in accordance with the melting process section of Specification A788/A788M.
4.2 Material for forgings shall consist of ingots, or either forged or rolled blooms, billets, or bars.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved Oct. 1, 2013Oct. 1, 2014. Published October 2013October 2014. Originally approved in 1964. Last previous edition approved in 2011 as2013
s A522/A522M–11.–13. DOI: 10.1520/A0522_A0522M-13.10.1520/A0522_A0522M-14.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-522 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
1
---------------------- Page: 1 ----------------------
A522/A522M − 14
4.3 The finished product shall be a forging as defined in the Terminology Section of Specification A788/A788M.
4.4 Except for flanges of all types, hollow cylindrically shaped parts may be made from hot-rolled or forged bar, provided that
the axial length of the part is approximately parallel to the metal flow lines o
...
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