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ASTM A395/A395M-99(2022)

(Specification)

Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures

Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures

ABSTRACT
This specification covers standard requirements for ductile iron castings for pressure-retaining parts for use at elevated temperatures. Castings are classified by grades based on mechanical property requirements. These iron castings shall meet the specified values of tensile strength, yield strength, elongation and hardness. Chemical analysis shall be performed wherein the casting shall conform to the required chemical composition for carbon, silicon, and phosphorous. The material shall meet the required tensile properties, hardness, and microstructure. The iron casting shall undergo pressure test after machining. The thickness of any repaired section in relation to the size of the plug used shall be indicated. The minimum radius of repaired sections of cylinders or cones in relation to the size of plug used shall not exceed the prescribed limit. Other defective areas may also be repaired by plugging provided the minimum ligament between plugs in adjacent areas shall not be less than twice the distance from the nearest plug. Three Y-blocks shall be utilized as test coupons. The material shall undergo the following test methods: tension test, chemical analysis, yield strength test, and hardness test.
SCOPE
1.1 This specification covers ductile iron castings for pressure-retaining parts for use at elevated temperatures. Castings of all grades are suitable for use up to 450 °F. For temperatures above 450 °F and up to 650 °F, only Grade 60-40-18 castings are suitable (Note 1).  
1.2 Valves, flanges, pipe fittings, pumps, and other piping components are generally manufactured in advance and supplied from stock by the manufacturer, jobber, or dealer.  
1.3 For supplemental casting requirements, Specification A834 may be utilized.  
1.4 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.
Note 1: For service other than as specified in this section, reference should be made to Specification A536 for Ductile Iron Castings.2  
1.5 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.

General Information

Status
Published
Publication Date
30-Sep-2022
ICS
77.140.80 - Iron and steel castings
Technical Committee
A04 - Iron Castings
Drafting Committee
A04.02 - Malleable and Ductile Iron Castings
Current Stage
Ref Project

Relations

Refers
ASTM A732/A732M-20 - Standard Specification for Castings, Investment, Carbon and Low-Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
Effective Date
01-May-2020
Refers
ASTM A834-95(2020) - Standard Specification for Common Requirements for Iron Castings for General Industrial Use
Effective Date
01-May-2020

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ASTM A395/A395M-99(2022) - Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated TemperaturesASTM A395/A395M-99(2022) - Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures
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ASTM A395/A395M-99(2022) - Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures
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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.
Designation: A395/A395M −99 (Reapproved 2022)
Standard Specification for
Ferritic Ductile Iron Pressure-Retaining Castings for Use at
1
Elevated Temperatures
This standard is issued under the fixed designationA395/A395M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
1.1 This specification covers ductile iron castings for
A536 Specification for Ductile Iron Castings
pressure-retaining parts for use at elevated temperatures. Cast-
A732/A732M Specification for Castings, Investment, Car-
ings of all grades are suitable for use up to 450 °F. For
bon and Low-Alloy Steel for General Application, and
temperatures above 450 °F and up to 650 °F, only Grade
Cobalt Alloy for High Strength at Elevated Temperatures
60-40-18 castings are suitable (Note 1).
A834 Specification for Common Requirements for Iron
1.2 Valves, flanges, pipe fittings, pumps, and other piping
Castings for General Industrial Use
components are generally manufactured in advance and sup-
E8/E8M Test Methods for Tension Testing of Metallic Ma-
plied from stock by the manufacturer, jobber, or dealer.
terials
1.3 For supplemental casting requirements, Specification E10 Test Method for Brinell Hardness of Metallic Materials
1
E186 Reference Radiographs for Heavy-Walled (2 to 4 ⁄2 in.
A834 may be utilized.
(50.8 to 114 mm)) Steel Castings
1.4 The values stated in either SI units or inch-pound units
1
E280 Reference Radiographs for Heavy-Walled (4 ⁄2 to 12
are to be regarded separately as standard. The values stated in
in. (114 to 305 mm)) Steel Castings
each system may not be exact equivalents; therefore, each
E446 Reference Radiographs for Steel Castings Up to 2 in.
system shall be used independently of the other. Combining
(50.8 mm) in Thickness
values from the two systems may result in nonconformance
E689 Reference Radiographs for Ductile Iron Castings
with the standard.
E1806 Practice for Sampling Steel and Iron for Determina-
NOTE 1—For service other than as specified in this section, reference
tion of Chemical Composition
2
should be made to Specification A536 for Ductile Iron Castings.
F1476 Specification for Performance of Gasketed Mechani-
1.5 This international standard was developed in accor-
cal Couplings for Use in Piping Applications
dance with internationally recognized principles on standard-
F1548 SpecificationforPerformanceofFittingsforUsewith
ization established in the Decision on Principles for the
Gasketed Mechanical Couplings Used in Piping Applica-
Development of International Standards, Guides and Recom-
tions
mendations issued by the World Trade Organization Technical
2.2 Manufacturers Standardization Society of the Valve and
3
Barriers to Trade (TBT) Committee.
Fittings Industry Standard:
SP 25 Standard Marking Systems for Valves, Flanges, Pipe
2. Referenced Documents
Fittings, and Unions
2
2.1 ASTM Standards:
3. Classification
A247 Test Method for Evaluating the Microstructure of
Graphite in Iron Castings
3.1 Castings ordered to this specification are classified by
grades based on mechanical property requirements, as listed in
Table 1. See note following Table 1.
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
Castings and is the direct responsibility of Subcommittee A04.02 on Malleable and
4. Ordering Information
Ductile Iron Castings.
Current edition approved Oct. 1, 2022. Published October 2022. Originally
4.1 Orders for material under this specification shall include
approved in 1955. Last previous edition approved in 2018 as A395/A395M – 99
the following applicable information:
(2018). DOI: 10.1520/A0395_A0395M-99R22.
2
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
3
Standards volume information, refer to the standard’s Document Summary page on AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
the ASTM website. Industry (MSS), 127 Park St., NE,Vienna,VA22180-4602, http://www.mss-hq.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A395/A395M − 99 (2022)
TABLE 1 Mechanical Property Requirements NOTE 2—Silicon contents above 2.75 % or p
...

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FIG. 3 Mold for Modified Keel Block  
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SCOPE
1.1 This specification covers statically cast dual metal rolls with the outer layer of the roll body being chilled white iron of different chemical composition than the core and journals of the roll which is gray cast iron. The castings are suitable for pressure-containing parts, the design strength of which is based on the gray iron portion of the cylinder. The castings are suitable for service at temperatures up to 450 °F [232 °C].  
1.2 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 The following safety hazards statement pertains only to the test method portion, Section 9, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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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