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ASTM A744/A744M-00e1

(Specification)

Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service

Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service

SCOPE
1.1 This specification covers iron-chromium-nickel alloy, stainless steel castings intended for particularly severe corrosive applications.
1.2 This specification requires postweld heat-treatment of all weld repairs affecting surfaces intended to be wetted by the corrosive medium. For applications for which postweld heat-treatment is not considered mandatory for retention of acceptable corrosion resistance, refer to Specification A743/A743M.
Note 1—For general corrosion-resistant alloy castings, reference should be made to Specification A743/A743M. For general heat-resistant alloy castings, reference should be made to Specification A297/A297M. For nickel-base alloy castings, refer to Specification A494/A494M.  
1.3 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. Inch-pound units are applicable for material ordered to Specification A744 and SI units for material ordered to Specification A744M.

General Information

Status
Historical
Publication Date
09-Sep-2000
ICS
77.140.80 - Iron and steel castings
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.18 - Castings
Current Stage
Ref Project

Relations

Replaces
ASTM A744/A744M-00 - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
Effective Date
10-Sep-2000
Replaced By
ASTM A744/A744M-00(2004) - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
Effective Date
01-Oct-2004
Referred By
ASTM A743/A743M-21 - Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
Effective Date
10-Sep-2000
Referred By
ASTM A957/A957M-21 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Sep-2000
Referred By
ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
Effective Date
10-Sep-2000
Referred By
ASTM A403/A403M-22b - Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
Effective Date
10-Sep-2000
Referred By
ASTM A781/A781M-21 - Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Sep-2000
Referred By
ASTM A488/A488M-18e2 - Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
Effective Date
10-Sep-2000
Referred By
ASTM A990/A990M-21 - Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure-Retaining Parts for Corrosive Service
Effective Date
10-Sep-2000

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ASTM A744/A744M-00e1 - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe ServiceASTM A744/A744M-00e1 - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
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ASTM A744/A744M-00e1 - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
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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
e1
Designation: A 744/A744M – 00
Standard Specification for
Castings, Iron-Chromium-Nickel, Corrosion Resistant, for
1
Severe Service
This standard is issued under the fixed designation A 744/A744M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1
e NOTE—Table 2 was editorially corrected in October 2002.
1. Scope A 494/A494M Specification for Castings, Nickel and
3
Nickel Alloy
1.1 This specification covers iron-chromium-nickel alloy,
A 732/A732M Specification for Castings, Investment, Car-
stainless steel castings intended for particularly severe corro-
bon and Low-Alloy Steel for General Application and
sive applications.
3
Cobalt Alloy for High Strength at Elevated Temperatures
1.2 This specification requires postweld heat-treatment of
A 743/A743M Specification for Castings, Iron-Chromium,
all weld repairs affecting surfaces intended to be wetted by the
Iron-Chromium-Nickel, Corrosion-Resistant, for General
corrosive medium. For applications for which postweld heat-
3
Application
treatment is not considered mandatory for retention of accept-
A 781/A781M Specification for Castings, Steel and Alloy,
able corrosion resistance, refer to Specification A 743/A 743M.
3
Common Requirements, for General Industrial Use
NOTE 1—For general corrosion-resistant alloy castings, reference
E 29 Practice for Using Significant Digits in Test Data to
should be made to Specification A 743/A 743M. For general heat-resistant
4
Determine Conformance With Specifications
alloy castings, reference should be made to Specification A 297/A 297M.
2.2 American Welding Society Standards:
For nickel-base alloy castings, refer to Specification A 494/A 494M.
AWS A5.11 Specification for Nickel and Nickel Alloy Cov-
1.3 The values stated in either inch-pound units or SI units
5
ered Welding Electrodes
are to be regarded separately as standard. Within the text, the
AWS A5.14 Specification for Nickel and Nickel Alloy Bare
SI units are shown in brackets. The values stated in each
5
Welding Rods and Electrodes
system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the
3. Terminology
two systems may result in nonconformance with the specifi-
3.1 Definitions of Terms Specific to This Standard:
cation. Inch-pound units are applicable for material ordered to
3.1.1 wetted surface, n—one that contacts a corrosive envi-
Specification A 744 and SI units for material ordered to
ronment.
Specification A 744M.
4. General Conditions for Delivery
2. Referenced Documents
4.1 Material furnished to this specification shall conform to
2.1 ASTM Standards:
the requirements of Specification A 781/A 781M, including
A 262 Practices for Detecting Susceptibility to Intergranu-
any supplementary requirements that are indicated on the
2
lar Attack in Austenitic Stainless Steels
purchase order. Failure to comply with the general require-
A 297/A297M Specification for Steel Castings, Iron-
ments of Specification A 781/A 781M constitutes nonconfor-
Chromium and Iron-Chromium-Nickel, Heat-Resistant,
mance with this specification. In case of conflict between the
3
for General Application
requirements of this specification and Specification A 781/
A 370 Test Methods and Definitions for Mechanical Testing
A 781M, this specification shall prevail.
2
of Steel Products
5. Ordering Information
5.1 Orders for material to this specification should include
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
the following, as required, to describe the material adequately:
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
Current edition approved Sept. 10, 2000. Published October 2000. Originally
4
published as A 744 – 77. Last previous edition A 744/A 744M – 98a. Annual Book of ASTM Standards, Vol 14.02.
2 5
Annual Book of ASTM Standards, Vol 01.03. Available from American Welding Society, P.O. Box 351040, 550 N.W.
3
Annual Book of ASTM Standards, Vol 01.02. LeJeune Rd., Miami, FL 33135.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
e1
A 744/A744M – 00
5.1.1 Description of the casting by pattern number or 10.1.1 The composition of the deposited weld metal shall be
drawing (dimensional tolerances shall be included on the similar to that of the casting except in grade CN3MN. In the
casting drawing), case of grade CN3MN, the composition of the deposited wel
...

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Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service

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This specification covers carbon and alloy steel castings for pressure-containing and other applications intended primarily for petroleum and gas pipelines in areas subject to low-ambient temperatures. Castings shall be heat treated by normalizing and tempering or liquid quenching and tempering. The steel shall be made by the electric furnace process or other primary processes. Heat and product analyses shall be performed on the material and the chemical composition shall conform to the prescribed values for carbon, manganese, nickel, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, also for residual elements like vanadium, copper, nickel, chromium, molybdenum, and tungsten. Tensile test shall be made and the mechanical properties thus determined shall conform to the required tensile strength, yield strength, elongation, and reduction of area. Charpy V-notch testing shall be done to determine the impact properties on each heat by specimen type like coupons representing the weld deposits and coupons representing the heat-affected zone. Impact properties shall also be determined on both the heat-affected zone of the base metal and the weld metal of the welding procedure qualification test. After machining, each pressure-containing casting shall undergo hydrostatic pressure testing and shall not leak.
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This specification covers standard requirements for iron-chromium-nickel alloy, stainless steel castings intended for particularly severe corrosive applications. Alloys shall be melted by the electric furnace process with or without refining such as argon-oxygen-decarburization. Castings shall be heat treated and shall conform to the required heat treatment conditions. The materials shall conform with the prescribed chemical requirements for carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, columbium, copper, selenium, tungsten, vanadium, iron, and nitrogen.
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1.3.1 Within the text, the SI units are shown in brackets.  
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1.1 This specification2 covers carbon steel castings for valves, flanges, fittings, or other pressure-containing parts for high-temperature service and of quality suitable for assembly with other castings or wrought steel parts by fusion welding.  
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ASTM A297/A297M-21a(Specification)
Standard Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application

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This specification covers standards for iron-chromium and iron-chromium-nickel alloy castings of general purpose grades (Grades HF, HH, HI, HK, HE, HT, HU, HW, HX, HC, HD, HL, HN, and HN) applicable in heat-resistant services. Alloys shall be produced through electric arc, electric-induction, or other approved processes. Heat-treatment shall be conducted when agreed upon by the manufacturer and purchaser. The material shall conform to carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, and molybdenum contents. Tensile requirements including tensile strength, yield point, and elongation shall apply when specified in the purchase order. Guidelines for repair by welding are also given.
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ASTM A487/A487M-21(Specification)
Standard Specification for Steel Castings Suitable for Pressure Service

ABSTRACT
This specification covers low-alloy steel and martensitic stainless steels in the normalized and tempered, or quenched and tempered conditions, suitable for pressure-containing parts. All castings shall receive the specified heat treatment requirement: austenitizing temperature, medium, quenching cool, and tempering temperature. Preliminary heat treatment and multiple tempering are permitted. Recording-type pyrometers shall be used to control the furnace temperature. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, vanadium, boron, and copper. Residual elements include: copper, nickel, chromium, tungsten, molybdenum, and vanadium. Tensile properties of the steel shall conform to the requirements for tensile strength, yield strength, elongation, reduction of area, hardness, and maximum thickness. Product analysis tolerance is specified. Repair by welding may be done.
SCOPE
1.1 This specification2 covers low-alloy steels and martensitic stainless steels in the normalized and tempered, or quenched and tempered, condition suitable for pressure-containing parts. The weldability of the classes in this specification varies from readily weldable to weldable only with adequate precautions, and the weldability of each class should be considered prior to assembly by fusion welding.  
1.2 Selection will depend on design, mechanical, and service conditions. Users should note that hardenability of some of the grades mentioned may restrict the maximum size at which the required mechanical properties are obtained.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 nonconformance with the standard.  
1.3.1 Within the text, the SI units are shown in brackets.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM A1091/A1091M-21(Specification)
Standard Specification for Steel Castings, Creep-Strength Enhanced Ferritic Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service

ABSTRACT
This specification covers general requirements for creep-strength enhanced alloy steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature service. However, the castings are not restricted to such applications, and may be used for other applications for which the attributes of the material, as defined by this specification, are suitable. The specification includes one grade of martensitic alloy steel, Grade C91, which is provided in two classes, differentiated by the type of heat treatment after weld repairs.
This specification also prescribes the general conditions for delivery, including those for investment castings, as well as the requirements for ordering information; materials and manufacture (heat-treatment and machining); chemical composition; testing of mechanical properties (tensile testing and hardness testing); quality of castings; rework, weld repair, and retreatment; and certification and marking of castings.
SCOPE
1.1 This specification covers creep-strength enhanced alloy steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature service (see Note 1). However, they are not restricted to such applications and the castings may be used for other applications for which the attributes of the material, as defined by this specification, are suitable.  
1.2 One grade of martensitic alloy steel, Grade C91 (UNS Number J84090), is covered (see Note 2). It is provided in two classes, differentiated by the type of heat treatment after welding. This and similar steels are characterized by a predominantly tempered martensitic or tempered Bainitic microstructure that is stabilized by the precipitation of temper-resistant particles at various precipitate nucleation sites in the microstructure. Such steels are designed to have creep-rupture strengths significantly superior to those of alloys of nominally similar compositions, but in which the precipitates or nucleation sites are absent. Since this crucial difference cannot be revealed by room-temperature mechanical property tests, these alloys require tighter controls on manufacturing and processing.
Note 1: The grades covered by this specification represent materials that are generally suitable for assembly with other castings or wrought steel parts by fusion welding. It is not intended to imply that these grades possess equal degrees of weldability; therefore, it is the responsibility of the purchaser to establish a suitable welding technique. Since these grades possess varying degrees of suitability for high-temperature service, it is also the responsibility of the purchaser to determine which grade shall be furnished, due consideration being given to the requirements of the applicable construction codes.
Note 2: The committee formulating this specification has included one grade of material that is considered to represent a type of ferritic alloy steel suitable for valves, flanges, fittings, and other pressure-containing parts. Additional alloy steels will be considered for inclusion in this specification by the committee as the need becomes apparent.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 nonconformance with the standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM A447/A447M-11(2021)(Specification)
Standard Specification for Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service

ABSTRACT
This specification covers iron-base, heat-resisting alloy castings, intended for structural elements, containers, and supports in electric furnaces, petroleum still tube supports, and for similar applications. The alloys shall be electric-furnace processed and heat treated. The castings shall conform to the required chemical compositions of nickel, chromium, carbon, nitrogen, manganese, silicon, phosphorus, sulfur, and iron. The specimens shall undergo tension test after aging and short-time high-temperature tension test and shall conform to the required values of tensile strength and elongation. A stress-rupture test shall also be performed wherein the specimens shall conform to the required values of tensile stress. The specimen shall also conform to the required values of magnetic permeability.
SCOPE
1.1 This specification covers iron-base, heat-resisting alloy castings of the 25 % chromium, 12 % nickel class, intended for structural elements, containers, and supports in electric furnaces, petroleum still tube supports, and for similar applications up to 2000 °F [1095 °C].  
1.2 In the absence of significant proportions of elements other than those prescribed in Section 5, the two types of alloys covered by this specification may in general be distinguished as follows:  
1.2.1 Type I—Alloys characterized by relatively low limiting creep stress at temperatures between 1500 and 2000 °F [815 and 1095 °C], and relatively high ductility at ordinary temperatures after aging for short periods at temperatures between 1300 and 1500 °F [705 and 815 °C].  
1.2.2 Type II—Alloys having relatively high limiting creep stress but which may develop low ductility at ordinary temperatures when aged for short periods at temperatures between 1350 and 1500 °F [730 and 815 °C].  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 nonconformance with the standard.  
1.3.1 Within the text, the SI units are shown in brackets.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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