ASTM A576-90b(2012)
(Specification)Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality
Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality
ABSTRACT
This specification covers hot-wrought special quality carbon steel bars. Special quality bar applications include forging, heat treating, cold drawing, machining, and many structural uses. The steel shall be made by one or more of the following primary processes: open-hearth, basic-oxygen, or electric furnace. The heat analysis shall conform to the requirements for chemical composition specified.
SCOPE
1.1 This specification covers hot-wrought special quality carbon steel bars. Special quality bar applications include forging, heat treating, cold drawing, machining, and many structural uses. A guide for the selection of steel bars is contained in Practice A400.
1.2 The bars shall be furnished in the grades specified in Table 1. Sections and sizes of bar steel available are covered in Specification A29/A29M. Hot-wrought special quality carbon steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition.
1.3 Merchant quality hot-wrought carbon steel bars are covered in Specification A575.
1.4 Some end uses may require superior surface quality, or special chemical restrictions, metallurgical characteristics, heat treatment, or surface finishes which the purchaser may obtain by designating one or more of the available Supplementary Requirements.
1.5 The values stated in inch-pound units are to be regarded as standard.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:A576 −90b (Reapproved 2012)
Standard Specification for
1
Steel Bars, Carbon, Hot-Wrought, Special Quality
This standard is issued under the fixed designation A576; 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 Department of Defense.
1. Scope E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
1.1 This specification covers hot-wrought special quality
2.2 SAE Standard:
carbon steel bars. Special quality bar applications include
SAE J 1086 Recommended Practice for Numbering Metals
forging, heat treating, cold drawing, machining, and many
3
and Alloys (UNS)
structural uses. A guide for the selection of steel bars is
contained in Practice A400.
3. Ordering Information
1.2 The bars shall be furnished in the grades specified in
3.1 Orders under this specification should include the
Table 1. Sections and sizes of bar steel available are covered in
following, as required, to describe adequately the desired
Specification A29/A29M. Hot-wrought special quality carbon
material:
steel bars are produced in cut lengths and coils; the manufac-
3.1.1 Quantity (weight or number of bars),
turershouldbeconsultedregardingsectionsandsizesavailable
3.1.2 Name of material (hot-wrought carbon steel bars),
in coils, produced to a chemical composition.
3.1.3 Dimensions,
1.3 Merchant quality hot-wrought carbon steel bars are
3.1.4 ASTM specification number and date of issue,
covered in Specification A575.
3.1.5 Deoxidation practice (see 4.2.1),
3.1.6 Gradedesignationorchemicalcompositionlimits(see
1.4 Some end uses may require superior surface quality, or
5.1 and Table 1),
special chemical restrictions, metallurgical characteristics, heat
3.1.7 Coarse or fine grain steel (4.2.2),
treatment, or surface finishes which the purchaser may obtain
3.1.8 Test reports, if required (Section 7),
by designating one or more of the available Supplementary
3.1.9 Additions to the specification and Supplementary
Requirements.
Requirements, if required, and
1.5 The values stated in inch-pound units are to be regarded
3.1.10 End use.
as standard.
NOTE1—Atypicalorderingdescriptionisasfollows:10 000lb,carbon
2. Referenced Documents
steel bars, hot rolled 1 000 in. diameter by 10 ft,ASTM A576 dated ___,
killed steel, Grade 1018, test reports required, coarse grain Supplementary
2
2.1 ASTM Standards:
Requirement S10, welded industrial fan hubs and shafts.
A29/A29M Specification for Steel Bars, Carbon and Alloy,
Hot-Wrought, General Requirements for
4. Materials and Manufacture
A400 Practice for Steel Bars, Selection Guide, Composition,
4.1 Melting Practice—The steel shall be made by one or
and Mechanical Properties
more of the following primary processes: open-hearth, basic-
A575 Specification for Steel Bars, Carbon, Merchant
oxygen, or electric-furnace. The primary melting may incor-
Quality, M-Grades
porate separate degassing or refining and may be followed by
E45 Test Methods for Determining the Inclusion Content of
secondary melting using electroslag remelting or vacuum arc
Steel
remelting. Where secondary melting is employed, the heat
shall be defined as all of the ingots remelted from a single
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
primary heat.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.15 on Bars.
4.2 Deoxidation:
Current edition approved March 1, 2012. Published April 2012. Originally
4.2.1 Unless otherwise specified, the steel shall be rimmed,
approved in 1967. Last previous edition approved in 2006 as A576 – 90b (2006).
capped, semi-killed, or killed at the manufacturer’s option.
DOI: 10.1520/A0576-90BR12.
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 Available from Society of Automotive Engineers, 400 Commonwealth Drive,
the ASTM website. Warrendale, PA 15096.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A576−90b (2012)
TABLE 1 Grade Designations and Chemical Requirements of Hot-Wrought Carbon Steel Bars
NOTE 1—Grade designations and compositions correspond to the respective AISI designations and compositions.
A
UNS Designation Grade Heat Chemical Ranges and Limits, %
B
Carbon Manganese Phosphorus, max Sulfur, max
C, D , E, F, G
Nonresulfurized Carbon Steels
L
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.