ASTM A27/A27M-05

Standard Specification for Steel Castings, Carbon, for General Application

ABSTRACT
This specification covers carbon steel castings for general applications. The grades of steels covered here are: Grade N-1, Grade N-2, Grade U-60-30 [415-205], Grade 60-30 [415-205], Grade 65-35 [450-240], Grade 70-36 [485-250] and Grade 70-40 [485-275]. Except for Grades N-1 and U-60-30, all steel castings shall be heat-treated by full annealing, normalizing, normalizing and tempering, or quenching and tempering. Heat treatments shall be performed after castings have been allowed to cool. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, silicon, sulfur and phosphorus. Except for Grades N-1 and N-2, all steels shall undergo tension test, and shall conform to the following mechanical requirements: tensile strength, yield point, elongation, and reduction of area.
SCOPE
1.1 This specification covers carbon steel castings for general applications that require up to 70 ksi [485 MPa] minimum tensile strength.
Note 1—The grades covered by this specification represent materials that are suitable for assembly with other steel castings or wrought steel parts by fusion welding. It is not intended to imply that all these grades possess the same degree of weldability or that the same welding techniques can be used on all castings. It is the responsibility of the purchaser to establish for himself a suitable welding technique.
1.2 Several grades and two classes of steel castings are covered, as indicated below. The grade and class desired shall be specified by the purchaser.
1.2.1 Grade N-1Chemical analysis only.
1.2.2 Grade N-2Heat-treated but not mechanically tested.
1.2.3 Grade U-60-30 [415-205]Mechanically tested but not heat-treated.
1.2.4 Grades 60-30 [415-205], 65-35 [450-240], 70-36[485-250], and 70-40 [485-275]-Heat-treated and mechanically tested.
1.2.5 Class 1 and Class 2 steel castings shall be specified in accordance with .
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 A 27 and SI units for material ordered to Specification A 27M.

General Information

• Status: Historical
• Publication Date: 28-Feb-2005
• ICS: 77.140.80 - Iron and steel castings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaces: ASTM A27/A27M-03 - Standard Specification for Steel Castings, Carbon, for General Application
• Effective Date: 01-Mar-2005
• Replaced By: ASTM A27/A27M-08 - Standard Specification for Steel Castings, Carbon, for General Application
• Effective Date: 01-Oct-2008
• Referred By: ASTM A957/A957M-21 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
• Effective Date: 01-Mar-2005
• Referred By: ASTM F2935-23 - Standard Specification for Chocks, Panama, Mooring Cast Steel
• Effective Date: 01-Mar-2005
• Referred By: ASTM F2936-23 - Standard Specification for Chocks, Ship Mooring, Cast Steel
• Effective Date: 01-Mar-2005
• Referred By: ASTM F1106-87(2023) - Standard Specification for Warping Heads, Rope Handling (Gypsy Head, Capstan Head)
• Effective Date: 01-Mar-2005
• Referred By: ASTM A488/A488M-18e2 - Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
• Effective Date: 01-Mar-2005
• Referred By: ASTM A781/A781M-21 - Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
• Effective Date: 01-Mar-2005
• Referred By: ASTM C1572/C1572M-23 - Standard Guide for Dry Lead Glass and Oil-Filled Lead Glass Radiation Shielding Window Components for Remotely Operated Facilities
• Effective Date: 01-Mar-2005
• Referred By: ASTM C361-22 - Standard Specification for Reinforced Concrete Low-Head Pressure Pipe
• Effective Date: 01-Mar-2005
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 01-Mar-2005
• Referred By: ASTM F765-93(2022) - Standard Specification for Wildcats, Ship Anchor Chain
• Effective Date: 01-Mar-2005
• Referred By: ASTM A148/A148M-20e1 - Standard Specification for Steel Castings, High Strength, for Structural Purposes
• Effective Date: 01-Mar-2005
• Referred By: ASTM A36/A36M-19 - Standard Specification for Carbon Structural Steel
• Effective Date: 01-Mar-2005
• Referred By: ASTM C361M-22 - Standard Specification for Reinforced Concrete Low-Head Pressure Pipe (Metric)
• Effective Date: 01-Mar-2005

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 27/A 27M – 05
Standard Specification for
1
Steel Castings, Carbon, for General Application
This standard is issued under the fixed designation A 27/A 27M; 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. Scope* 2. Referenced Documents
2
1.1 This specification covers carbon steel castings for gen- 2.1 ASTM Standards:
eral applications that require up to 70 ksi [485 MPa] minimum A 370 Test Methods and Definitions for MechanicalTesting
tensile strength. of Steel Products
A 732/A 732M Specification for Castings, Investment, Car-
NOTE 1—The grades covered by this specification represent materials
bon and Low Alloy Steel for General Application, and
that are suitable for assembly with other steel castings or wrought steel
Cobalt Alloy for High Strength at Elevated Temperatures
parts by fusion welding. It is not intended to imply that all these grades
A 781/A 781M Specification for Castings, Steel and Alloy,
possess the same degree of weldability or that the same welding
techniques can be used on all castings. It is the responsibility of the
Common Requirements, for General Industrial Use
purchaser to establish for himself a suitable welding technique.
3. General Conditions for Delivery
1.2 Several grades and two classes of steel castings are
3.1 Material furnished to this specification shall conform to
covered, as indicated below. The grade and class desired shall
the requirements of Specification A 781/A 781M, including
be specified by the purchaser.
any supplementary requirements that are indicated in the
1.2.1 Grade N-1—Chemical analysis only.
purchase order. Failure to comply with the general require-
1.2.2 Grade N-2—Heat-treated but not mechanically tested.
ments of Specification A 781/A 781M constitutes nonconfor-
1.2.3 Grade U-60-30 [415-205]—Mechanically tested but
mance with this specification. In case of conflict between the
not heat-treated.
requirements of this specification and Specification A 781/
1.2.4 Grades 60-30 [415-205], 65-35 [450-240], 70-36
A 781M, this specification shall prevail.
[485-250], and 70-40 [485-275]—Heat-treated and mechani-
cally tested.
4. Ordering Information
1.2.5 Class 1 and Class 2 steel castings shall be specified in
4.1 Orders for material under this specification should
accordance with 9.2.
include the following information in proper sequence.
1.3 The values stated in either inch-pound units or SI units
4.1.1 Quantity,
are to be regarded separately as standard. Within the text, the
4.1.2 Specification, grade (1.2), and class (9.2),
SI units are shown in brackets. The values stated in each
4.1.3 Description of the casting by pattern number or
system are not exact equivalents; therefore, each system must
drawing,
be used independently of the other. Combining values from the
4.1.4 Options in the specification, and
two systems may result in nonconformance with the specifi-
4.1.5 Supplementary requirements desired, including stan-
cation. Inch-pound units are applicable for material ordered to
dards of acceptance.
Specification A 27 and SI units for material ordered to Speci-
fication A 27M.
5. Heat Treatment
5.1 All castings of Grades N-2, 60-30 [415-205], 65-35
[450-240], 70-36 [485-250], and 70-40 [485-275] shall be
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
2
A01.18 on Castings. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2005. Published March 2005. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1901 as A 27 - 01. Last previous edition approved in 2003 as Standards volume information, refer to the standard’s Document Summary page on
A 27/A 27M – 03. 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

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A 27/A 27M – 05
TABLE 1 Chemical Requirements
A
Grade (UNS No.) Composition, %
B B
Carbon, max Manganese, max Silicon, max Sulfur, max Phosphorus, max
Grade N-1 (J02500) 0.25 0.75 0.80 0.06 0.05
Grade N-2 (J03500) 0.35 0.60 0.80 0.06 0.05
Grade U-60-30 [415-205] (J02500) 0.25 0.75 0.80 0.06 0.05
Grade 60-30 [415-205] (J03000) 0.30 0.60 0.80 0.06 0.05
Grade 65-35 [450-240] (J03001) 0.30 0.70 0.80 0.06 0.05
Grade 70-36 [485-250] (J03501) 0.35 0.70 0.80 0.06
...

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: A 27/A 27M – 05
Standard Specification for
1
Steel Castings, Carbon, for General Application
This standard is issued under the fixed designation A 27/A 27M; 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. Scope*
1.1 This specification covers carbon steel castings for general applications that require up to 70 ksi [485 MPa] minimum tensile
strength.
NOTE 1—The grades covered by this specification represent materials that are suitable for assembly with other steel castings or wrought steel parts by
fusion welding. It is not intended to imply that all these grades possess the same degree of weldability or that the same welding techniques can be used
on all castings. It is the responsibility of the purchaser to establish for himself a suitable welding technique.
1.2 Several grades and two classes of steel castings are covered, as indicated below. The grade and class desired shall be
specified by the purchaser.
1.2.1 Grade N-1—Chemical analysis only.
1.2.2 Grade N-2—Heat-treated but not mechanically tested.
1.2.3 Grade U-60-30 [415-205]—Mechanically tested but not heat-treated.
1.2.4 Grades 60-30 [415-205], 65-35 [450-240], 70-36 [485-250], and 70-40 [485-275]—Heat-treated and mechanically
tested.
1.2.5 Class 1 and Class 2 steel castings shall be specified in accordance with 9.2.
1.3 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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-poundunitsareapplicableformaterialorderedtoSpecificationA 27andSIunitsformaterialorderedtoSpecificationA 27M.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.18
on Castings.
Current edition approved March 1, 2005. Published March 2005. Originally approved in 1901 asA 27 - 01. Last previous edition approved in 2003 asA 27/A 27M – 03.
*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 ----------------------
A 27/A 27M – 05
2. Referenced Documents
2
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 732/A 732M Specification for Castings, Investment, Carbon and LowAlloy Steel for GeneralApplication, and CobaltAlloy
for High Strength at Elevated Temperatures
A 781/A 781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
3. General Conditions for Delivery
3.1 Material furnished to this specification shall conform to the requirements of Specification A 781/A 781M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
Specification A 781/A 781M constitutes nonconformance with this specification. In case of conflict between the requirements of
this specification and Specification A 781/A 781M, this specification shall prevail.
4. Ordering Information
4.1 Orders for material under this specification should include the following information in proper sequence.
4.1.1 Quantity,
4.1.2 Specification, grade (1.2), and class (9.2),
4.1.3 Description of the casting by pattern number or drawing,
4.1.4 Options in the specification, and
4.1.5 Supplementary requirements desired, including standards of acceptance.
5. Heat Treatment
5.1 All castings of Grades N-2, 60-30 [415-205], 65-35 [450-240], 70-36 [485-250], and 70-40 [485-275] shall be heat-treated
by full annealing, normalizing, normalizing and tempering, or quenching and tempering. Unless otherwise specified in the inquiry,
contract, or order, the castings may be heat-treated by any one or combination of these heat-treatments at the option of the
manufacturer.
5.1.1 Heat-treatment shall be performed after castings have been allowed to cool from the pouring temperature to below the
transformation range.
5.2 Furnace temperatures for heat-treating shall b
...