ASTM A941-09a

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:A941–09 Designation: A941 – 09a
Standard Terminology Relating to
1
Steel, Stainless Steel, Related Alloys, and Ferroalloys
This standard is issued under the fixed designation A941; 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*
1.1 This standard is a compilation of definitions of terms related to steel, stainless steel, related alloys, and ferroalloys.
1.2 WhenatermisusedinanASTMdocumentforwhichCommitteeA01isresponsible,itisincludedhereinonlywhenjudged,
after review by Subcommittee A01.92, to be a generally usable term.
1.3 Some definitions include a discussion section, which is a mandatory part of the definition and contains additional
information that is relevant to the meaning of the defined term.
1.4 Definitions of terms specific to a particular standard will appear in that standard and will supersede any definitions of
identical terms in this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
E112 Test Methods for Determining Average Grain Size
3. Terminology
3.1 Definitions of General Terms:
age hardening, n—see precipitation hardening.
alloy steel, n—a steel, other than a stainless steel, that conforms to a specification that requires one or more of the following
elements, by mass percent, to have a minimum content equal to or greater than: 0.30 for aluminum; 0.0008 for boron; 0.30 for
chromium; 0.30 for cobalt; 0.40 for copper; 0.40 for lead; 1.65 for manganese; 0.08 for molybdenum; 0.30 for nickel; 0.06 for
niobium (columbium); 0.60 for silicon; 0.05 for titanium; 0.30 for tungsten (wolfram); 0.10 for vanadium; 0.05 for zirconium;
or 0.10 for any other alloying element, except sulphur, phosphorus, carbon, and nitrogen.
capped steel, n—a rimmed steel in which, during ingot solidification, the rimming action was limited by mechanical or chemical
means.
carbon steel, n—a steel that conforms to a specification that prescribes a maximum limit, by heat analysis in mass percent, of
not more than: 2.00 for carbon and 1.65 for manganese, but does not prescribe a minimum limit for chromium, cobalt,
molybdenum, nickel, niobium (columbium), tungsten (wolfram), vanadium, or zirconium.
DISCUSSION—Except as required above, it is permissible for carbon steel specifications to prescribe limits (minimum or maximum, or both) for each
specified alloying element, subject to the following restrictions for the heat analysis limits in mass percent:
(a) for wrought carbon steel products, the specified maximum limit is not to exceed: 0.10 for aluminum, 0.60 for silicon, and 0.050 for titanium;
(b) for carbon steel castings, the specified maximum limit is not to exceed: 0.10 for aluminum, 1.00 for silicon, and 0.050 for titanium.
(c) for carbon steels that are required to be rephosphorized, the specified minimum limit for phosphorus is not to be less than 0.040;
(d) for carbon steels that are required to be resulfurized, the specified minimum limit for sulfur is not to be less than 0.060;
(e) for carbon steels that are not required to be rephosphorized or resulfurized, the specified maximum limit is not to exceed: 0.60 for copper, 0.050
for phosphorus, and 0.060 for sulfur; and
(f) forcarbonsteels that are required to contain boron, copper, or lead, the specified minimum limit is not to exceed: 0.0005 for boron, 0.35 for copper,
and 0.25 for lead.
cast analysis—Deprecated term. Use the preferred term heat analysis.
certificate of compliance, n—in manufactured products, a document that states that the product was manufactured, sampled,
tested, and inspected in accordance with the requirements of the specification (including year of issue) and any other
requirements specified in the purchase order or contract, and has been found to meet such requirements.
1
This terminology is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.92
on Terminology.
Current edition approved AprilDec. 1, 2009. Published May 2009.January 2010. Originally approved in 1995. Last previous edition approved in 20062009 as
A941–06a.A941 – 09. DOI: 10.1520/A0941-09a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary p
...

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:A941–09 Designation: A941 – 09a
Standard Terminology Relating to
1
Steel, Stainless Steel, Related Alloys, and Ferroalloys
This standard is issued under the fixed designation A941; 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*
1.1 This standard is a compilation of definitions of terms related to steel, stainless steel, related alloys, and ferroalloys.
1.2 WhenatermisusedinanASTMdocumentforwhichCommitteeA01isresponsible,itisincludedhereinonlywhenjudged,
after review by Subcommittee A01.92, to be a generally usable term.
1.3 Some definitions include a discussion section, which is a mandatory part of the definition and contains additional
information that is relevant to the meaning of the defined term.
1.4 Definitions of terms specific to a particular standard will appear in that standard and will supersede any definitions of
identical terms in this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
E112 Test Methods for Determining Average Grain Size
3. Terminology
3.1 Definitions of General Terms:
age hardening, n—see precipitation hardening.
alloy steel, n—a steel, other than a stainless steel, that conforms to a specification that requires one or more of the following
elements, by mass percent, to have a minimum content equal to or greater than: 0.30 for aluminum; 0.0008 for boron; 0.30 for
chromium; 0.30 for cobalt; 0.40 for copper; 0.40 for lead; 1.65 for manganese; 0.08 for molybdenum; 0.30 for nickel; 0.06 for
niobium (columbium); 0.60 for silicon; 0.05 for titanium; 0.30 for tungsten (wolfram); 0.10 for vanadium; 0.05 for zirconium;
or 0.10 for any other alloying element, except sulphur, phosphorus, carbon, and nitrogen.
capped steel, n—a rimmed steel in which, during ingot solidification, the rimming action was limited by mechanical or chemical
means.
carbon steel, n—a steel that conforms to a specification that prescribes a maximum limit, by heat analysis in mass percent, of
not more than: 2.00 for carbon and 1.65 for manganese, but does not prescribe a minimum limit for chromium, cobalt,
molybdenum, nickel, niobium (columbium), tungsten (wolfram), vanadium, or zirconium.
DISCUSSION—Except as required above, it is permissible for carbon steel specifications to prescribe limits (minimum or maximum, or both) for each
specified alloying element, subject to the following restrictions for the heat analysis limits in mass percent:
(a) for wrought carbon steel products, the specified maximum limit is not to exceed: 0.10 for aluminum, 0.60 for silicon, and 0.050 for titanium;
(b) for carbon steel castings, the specified maximum limit is not to exceed: 0.10 for aluminum, 1.00 for silicon, and 0.050 for titanium.
(c) for carbon steels that are required to be rephosphorized, the specified minimum limit for phosphorus is not to be less than 0.040;
(d) for carbon steels that are required to be resulfurized, the specified minimum limit for sulfur is not to be less than 0.060;
(e) for carbon steels that are not required to be rephosphorized or resulfurized, the specified maximum limit is not to exceed: 0.60 for copper, 0.050
for phosphorus, and 0.060 for sulfur; and
(f) forcarbonsteels that are required to contain boron, copper, or lead, the specified minimum limit is not to exceed: 0.0005 for boron, 0.35 for copper,
and 0.25 for lead.
cast analysis—Deprecated term. Use the preferred term heat analysis.
certificate of compliance, n—in manufactured products, a document that states that the product was manufactured, sampled,
tested, and inspected in accordance with the requirements of the specification (including year of issue) and any other
requirements specified in the purchase order or contract, and has been found to meet such requirements.
1
This terminology is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.92
on Terminology.
Current edition approved AprilDec. 1, 2009. Published May 2009.January 2010. Originally approved in 1995. Last previous edition approved in 20062009 as
A941–06a.A941 – 09. DOI: 10.1520/A0941-09a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary p
...