ASTM A711/A711M-07(2012)

Standard Specification for Steel Forging Stock

ABSTRACT
This specification covers cast carbon and alloy steel ingots and strand castings, semi-wrought ingots and strand castings, and rolled or forged blooms, billets, and slabs for steel forging stock. Materials shall be manufactured and furnished in a condition that can withstand, for an indefinite time, exposure to all climatic conditions without developing any external or internal cracks. Final products shall be free of injurious surface imperfections. If, however, such defects do occur, surface conditioning, cutting, or parting may be performed by scarfing or flame-cutting. Heat and product analyses shall be carried out to evaluate conformance of steel specimens to chemical composition requirements.
SCOPE
1.1 This specification covers cast carbon and alloy steel ingots and strand castings, semi-wrought ingots and strand castings and rolled or forged blooms, billets, and slabs for forging.  
1.2 Blooms, billets, and slabs are semi-finished steel products, hot rolled or forged to approximate cross-sectional dimensions. Blooms and billets may be square, round, octagonal, or rectangular in section; slabs are rectangular. Although no invariable rule prevails between the terms blooms and billets, and they are frequently used interchangeably, the following size distinctions are in general use.  
1.2.1 Blooms—Cross-sectional area greater than 36 in.2 [230 cm2].  
1.2.2 Billets—Maximum cross-sectional area 36 in.2 [230 cm2].  
1.2.3 Slabs—Minimum thickness, 1½ in. [4 cm]; width, more than twice the thickness; and generally a cross-sectional area of not less than 16 in.2 [100 cm2].
1.2.4 Ingots either top or bottom poured or secondary remelted are covered.  
1.2.5 Strand castings with or without additional reduction are covered.  
1.3 Supplementary requirements (S1 to S19) of an optional nature are provided. They shall apply only when specified by the purchaser.  
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 non-conformance with the standard.
1.5 Unless the order specifies the “M” specification, the material shall be furnished to the inch-pound units.

General Information

• Status: Historical
• Publication Date: 30-Apr-2012
• ICS: 77.140.85 - Iron and steel forgings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.06 - Steel Forgings and Billets

Relations

• Replaces: ASTM A711/A711M-07 - Standard Specification for Steel Forging Stock
• Effective Date: 01-May-2012
• Referred By: ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
• Effective Date: 01-May-2012

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: A711/A711M −07 (Reapproved 2012)
Standard Specification for
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Steel Forging Stock
This standard is issued under the fixed designationA711/A711M; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers cast carbon and alloy steel
A29/A29MSpecification for Steel Bars, Carbon and Alloy,
ingots and strand castings, semi-wrought ingots and strand
Hot-Wrought, General Requirements for
castings and rolled or forged blooms, billets, and slabs for
A275/A275MPracticeforMagneticParticleExaminationof
forging.
Steel Forgings
1.2 Blooms, billets, and slabs are semi-finished steel
A388/A388MPractice for Ultrasonic Examination of Steel
products, hot rolled or forged to approximate cross-sectional
Forgings
dimensions. Blooms and billets may be square, round,
A788/A788MSpecification for Steel Forgings, General Re-
octagonal, or rectangular in section; slabs are rectangular.
quirements
Althoughnoinvariableruleprevailsbetweenthetermsblooms
E45Test Methods for Determining the Inclusion Content of
and billets, and they are frequently used interchangeably, the
Steel
following size distinctions are in general use.
E112Test Methods for Determining Average Grain Size
2
1.2.1 Blooms—Cross-sectional area greater than 36 in.
E381Method of Macroetch Testing Steel Bars, Billets,
2
[230 cm ].
Blooms, and Forgings
2
1.2.2 Billets—Maximum cross-sectional area 36 in.
2
3. Ordering Information and General Requirements
[230cm ].
1
1.2.3 Slabs—Minimum thickness, 1 ⁄2 in. [4 cm]; width, 3.1 When this specification is to be applied to an inquiry,
more than twice the thickness; and generally a cross-sectional
contract, or order, the purchaser shall furnish the following
2 2
area of not less than 16 in. [100 cm ]. information in addition to those specified in Specification
A788/A788M:
1.2.4 Ingots either top or bottom poured or secondary
3.1.1 The grade of material desired.
remelted are covered.
3.1.2 Product form restrictions (for example, ingots, strand
1.2.5 Strand castings with or without additional reduction
castings, billets) if any, and
are covered.
3.1.3 Applicable supplementary requirements.
1.3 Supplementary requirements (S1 to S19) of an optional
3.1.4 Surface condition.
nature are provided. They shall apply only when specified by
3.2 Material supplied to this specification shall conform to
the purchaser.
the requirements of Specification A788/A788M, which out-
1.4 The values stated in either SI units or inch-pound units
lines additional ordering information, manufacturing
are to be regarded separately as standard. The values stated in
requirements, testing and retsting methods and procedures,
each system may not be exact equivalents; therefore, each
marking, certification, product analysis variations, and addi-
system shall be used independently of the other. Combining
tional supplementary requirements.
values from the two systems may result in non-conformance
3.2.1 If the requirements of this specification are in conflict
with the standard.
with the requirements of Specification A788/A788M, the
requirements of this specification shall prevail.
1.5 Unless the order specifies the “M” specification, the
material shall be furnished to the inch-pound units.
4. Materials and Manufacture
4.1 Discard—Sufficient discard shall be made to secure
freedom from piping and undue segregation.
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This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
2
A01.06 on Steel Forgings and Billets. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2012. Published May 2012. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1974. Last previous edition approved in 2007 as A711/A711M–07. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0711_A0711M-07R12. the ASTM website.
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A711/A711M − 07 (2012)
4.2 Reduction from Ingot—Except as otherwise agreed in
Lots Number of Pieces
15 tons [13.5 t] or less 4
accordance with Supplementary Requirement S3.2, the mate-
Over 15 tons [13.5 t] 6
rial shall be made from product having at least two times the
5.3.3 If the number of pieces from cast or heat is less than
cross-sectional area of the material.
the number of samples specified in 5.3
...