ASTM A29/A29M-12

Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

ABSTRACT
This guide covers a group of requirements for carbon and alloy steel bars under each of the following specifications: hot-rolled carbon steel bars, cold-finished carbon steel bars, hot-rolled alloy steel bars, and cold-finished alloy steel bars. Heat and product analysis shall be performed on several grades of carbon steel bars, wherein the material shall conform to the required chemical composition for carbon, manganese, phosphorus, and sulfur. Several grades of alloy steel bars shall also undergo heat and product analysis and shall meet the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, and molybdenum. When compositions other than those indicated in the specified chemical components are required, the composition limits shall be prepared using the specified ranges and limits for carbon steel and alloy steel. The material shall undergo grain size test and shall conform to the specified grain size requirement. Mechanical tests shall also be performed on the steel test specimens.
SCOPE
1.1 This specification covers a group of common requirements which, unless otherwise specified in the purchase order or in an individual specification, shall apply to carbon and alloy steel bars under each of the following ASTM specifications (or under any other ASTM specification which invokes this specification or portions thereof): Title of SpecificationASTM
DesignationA Hot-Rolled Carbon Steel Bars:  Steel Bars, Carbon, Quenched and Tempered A321   Steel Bars and Shapes, Carbon Rolled from “T'' Rails  A499   Steel Bars, Carbon, Merchant Quality, M-Grades A575   Steel Bars, Carbon, Hot-Wrought, Special Quality A576   Steel Bars, Carbon, Merchant Quality, Mechanical Properties A663/A663M   Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties  A675/A675M   Steel Bars for Springs, Carbon and Alloy A689  Cold-Finished Carbon Steel Bars:   Steel Bars, Carbon and Alloy, Cold-Finished A108   Cold-Drawn Stress-Relieved Carbon Steel Bars Subject to Mechanical Property Requirements A311/A311M Hot-Rolled Alloy Steel Bars:   Steel Bars, Alloy, Standard Grades A322   Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements  A304   Steel Bars, Alloy, Hot-Wrought or Cold-Finished, Quenched and Tempered A434   Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both A739  Cold-Finished Alloy Steel Bars:   Steel Bars, Alloy, Hot-Rolled or Cold-Finished, Quenched and Tempered  A434   Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components  A696
A These designations refer to the latest issue of the respective specifications, which appear either in the Annual Book of ASTM Standards, Vol 01.05, or as reprints obtainable from ASTM.  
1.2 In case of any conflict in requirements, the requirements of the purchase order, the individual material specification, and this general specification shall prevail in the sequence named.
1.3 The values stated in inch-pound units or SI units are to be regarded as the 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.
1.4 For purposes of determining conformance to this specification and the various material specifications referenced in 1.1, dimensional values shall be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29.
Note 1—Specification A29 previously listed dimensional tolerances for cold-finished bars; these are now found in Specification A108.

General Information

• Status: Historical
• Publication Date: 30-Apr-2012
• ICS: 77.140.60 - Steel bars and rods
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.15 - Bars

Relations

• Replaces: ASTM A29/A29M-11a - Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
• Effective Date: 01-May-2012
• Replaced By: ASTM A29/A29M-12e1 - Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
• Effective Date: 01-May-2012
• Referred By: ASTM A696-17(2022) - Standard Specification for Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components
• Effective Date: 01-May-2012
• Referred By: ASTM A295/A295M-14(2020) - Standard Specification for High-Carbon Anti-Friction Bearing Steel
• Effective Date: 01-May-2012
• Referred By: ASTM F2643-20 - Standard Specification for Powered Pot, Pan and Utensil Washing Sinks
• Effective Date: 01-May-2012
• Referred By: ASTM F1150-22 - Standard Specification for Commercial Food Waste Pulper and Waterpress Assembly
• Effective Date: 01-May-2012
• Referred By: ASTM A467/A467M-20 - Standard Specification for Machine and Coil Chain
• Effective Date: 01-May-2012
• Referred By: ASTM A914/A914M-19 - Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
• Effective Date: 01-May-2012
• Referred By: ASTM A125-96(2018) - Standard Specification for Steel Springs, Helical, Heat-Treated
• Effective Date: 01-May-2012
• Referred By: ASTM A729/A729M-17(2022) - Standard Specification for Carbon and Alloy Steel Axles, Heat-Treated, for Mass Transit and Electric Railway Service
• Effective Date: 01-May-2012
• Referred By: ASTM F844-19 - Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use
• Effective Date: 01-May-2012
• Referred By: ASTM A534-17(2022) - Standard Specification for Carburizing Steels for Anti-Friction Bearings
• Effective Date: 01-May-2012
• Referred By: ASTM F432-19 - Standard Specification for Roof and Rock Bolts and Accessories
• Effective Date: 01-May-2012
• Referred By: ASTM A921/A921M-93(2022) - Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, for Subsequent Hot Forging
• Effective Date: 01-May-2012
• Referred By: ASTM A466/A466M-07(2020) - Standard Specification for Weldless Chain
• 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:A29/A29M −12
StandardSpecification for
Steel Bars, Carbon and Alloy, Hot-Wrought, General
1
Requirements for
This standard is issued under the fixed designation A29/A29M; 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.
A
These designations refer to the latest issue of the respective specifications,
1. Scope*
which appear either in the Annual Book of ASTM Standards, Vol 01.05, or as
2
1.1 This specification covers a group of common require- reprints obtainable from ASTM.
ments which, unless otherwise specified in the purchase order
1.2 In case of any conflict in requirements, the requirements
orinanindividualspecification,shallapplytocarbonandalloy
of the purchase order, the individual material specification, and
steel bars under each of the followingASTM specifications (or
this general specification shall prevail in the sequence named.
under any other ASTM specification which invokes this
1.3 The values stated in inch-pound units or SI units are to
specification or portions thereof):
be regarded as the standard. Within the text, the SI units are
Title of Specification ASTM
shown in brackets. The values stated in each system are not
A
Designation
exact equivalents; therefore, each system must be used inde-
Hot-Rolled Carbon Steel Bars:
Steel Bars, Carbon, Quenched and Tempered A321
pendentlyoftheother.Combiningvaluesfromthetwosystems
Steel Bars and Shapes, Carbon Rolled from “T’’ Rails A499
may result in nonconformance with the specification.
Steel Bars, Carbon, Merchant Quality, M-Grades A575
Steel Bars, Carbon, Hot-Wrought, Special Quality A576
1.4 For purposes of determining conformance to this speci-
Steel Bars, Carbon, Merchant Quality, Mechanical A663/A663M
fication and the various material specifications referenced in
Properties
Steel Bars, Carbon, Hot-Wrought, Special Quality, Me- A675/A675M
1.1, dimensional values shall be rounded to the nearest unit in
chanical Properties
the right-hand place of figures used in expressing the limiting
Steel Bars for Springs, Carbon and Alloy A689
values in accordance with the rounding method of Practice
Cold-Finished Carbon Steel Bars:
Steel Bars, Carbon and Alloy, Cold-Finished A108
E29.
Cold-Drawn Stress-Relieved Carbon Steel Bars Sub- A311/A311M
ject to Mechanical Property Requirements NOTE1—SpecificationA29previouslylisteddimensionaltolerancesfor
Hot-Rolled Alloy Steel Bars:
cold-finished bars; these are now found in Specification A108.
Steel Bars, Alloy, Standard Grades A322
Carbon and Alloy Steel Bars Subject to End-Quench A304
2. Referenced Documents
Hardenability Requirements
3
2.1 ASTM Standards:
Steel Bars, Alloy, Hot-Wrought or Cold-Finished, A434
Quenched and Tempered
A108 Specification for Steel Bar, Carbon and Alloy, Cold-
Steel Bars, Alloy, Hot-Wrought, for Elevated Tempera- A739
Finished
ture or Pressure-Containing Parts, or Both
Cold-Finished Alloy Steel Bars: A304 Specification for Carbon andAlloy Steel Bars Subject
Steel Bars, Alloy, Hot-Rolled or Cold-Finished, A434
to End-Quench Hardenability Requirements
Quenched and Tempered
A311/A311M Specification for Cold-Drawn, Stress-
Steel Bars, Carbon, Hot-Wrought or Cold-Finished, A696
Special Quality, for Pressure Piping Components Relieved Carbon Steel Bars Subject to Mechanical Prop-
erty Requirements
A321 Specification for Steel Bars, Carbon, Quenched and
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Tempered
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A322 Specification for Steel Bars, Alloy, Standard Grades
A01.15 on Bars.
Current edition approved May 1, 2012. Published May 2012. Originally
3
approved in 1957. Last previous edition approved in 2011 as A29/A29M – 11a. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/A0029_A0029M-12. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-29/SA-29M in Section II of that Code. 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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A29/A29M−12
7
A370 Test Methods and Definitions for Mechanical Testing 3.1.1.3 Round-Cornered Squares— ⁄32 to 8.0 in. [6 to 200
of Steel Products mm], inclu
...

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:A29/A29M–11a Designation: A29/A29M – 12
Standard Specification for
Steel Bars, Carbon and Alloy, Hot-Wrought, General
1
Requirements for
This standard is issued under the fixed designation A29/A29M; 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*
2
1.1 This specification covers a group of common requirements which, unless otherwise specified in the purchase order or in
an individual specification, shall apply to carbon and alloy steel bars under each of the following ASTM specifications (or under
any other ASTM specification which invokes this specification or portions thereof):
Title of Specification ASTM
A
Designation
Hot-Rolled Carbon Steel Bars:
Steel Bars, Carbon, Quenched and Tempered A321
Steel Bars and Shapes, Carbon Rolled from “T’’ Rails A499
Steel Bars, Carbon, Merchant Quality, M-Grades A575
Steel Bars, Carbon, Hot-Wrought, Special Quality A576
Steel Bars, Carbon, Merchant Quality, Mechanical A663/A663M
Properties
Steel Bars, Carbon, Hot-Wrought, Special Quality, Me- A675/A675M
chanical Properties
Steel Bars for Springs, Carbon and Alloy A689
Cold-Finished Carbon Steel Bars:
Steel Bars, Carbon and Alloy, Cold-Finished A108
Cold-Drawn Stress-Relieved Carbon Steel Bars Sub- A311/A311M
ject to Mechanical Property Requirements
Hot-Rolled Alloy Steel Bars:
Steel Bars, Alloy, Standard Grades A322
Carbon and Alloy Steel Bars Subject to End-Quench A304
Hardenability Requirements
Steel Bars, Alloy, Hot-Wrought or Cold-Finished, A434
Quenched and Tempered
Steel Bars, Alloy, Hot-Wrought, for Elevated Tempera- A739
ture or Pressure-Containing Parts, or Both
Cold-Finished Alloy Steel Bars:
Steel Bars, Alloy, Hot-Rolled or Cold-Finished, A434
Quenched and Tempered
Steel Bars, Carbon, Hot-Wrought or Cold-Finished, A696
Special Quality, for Pressure Piping Components
A
These designations refer to the latest issue of the respective specifications, which appear either in the Annual Book of ASTM Standards, Vol 01.05, or as reprints
obtainable from ASTM.
1.2 In case of any conflict in requirements, the requirements of the purchase order, the individual material specification, and this
general specification shall prevail in the sequence named.
1.3 The values stated in inch-pound units or SI units are to be regarded as the 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.
1.4 For purposes of determining conformance to this specification and the various material specifications referenced in 1.1,
dimensional values shall be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values
in accordance with the rounding method of Practice E29.
NOTE 1—Specification A29 previously listed dimensional tolerances for cold-finished bars; these are now found in Specification A108.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.15
on Bars.
Current edition approved Oct.May 1, 2011.2012. Published October 2011.May 2012. Originally approved in 1957. Last previous edition approved in 2011as
A29/A29M – 11a. DOI: 10.1520/A0029_A0029M-11A2.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-29/SA-29M in Section II of that Code.
*ASummary 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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A29/A29M – 12
2. Referenced Documents
3
2.1 ASTM Standards:
A108 Specification for Steel Bar, Carbon and Alloy, Cold-Finished
A304 Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
A311/A311M Specification for Cold-Drawn, Stress-Relieved Carbon Steel Bars Subject to Mechanical Property Requirements
A321 Specification for Steel Bars, Carbon, Quenched and Tempered
A322 Specification for Steel Bars, Alloy, Standard Grades
A370 Test Methods and Definitions for Mechani
...