ASTM A29 / A29M - 11a standard specification for steel bars, carbon and alloy, hot-wrought, general requirements for

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Source: ASTM International

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.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. 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 Specification: ASTM 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.

2. Referenced Documents (purchase separately)

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 Mechanical Testing of Steel Products
A434 Specification for Steel Bars, Alloy, Hot-Wrought or Cold-Finished, Quenched and Tempered
A499 Specification for Steel Bars and Shapes, Carbon Rolled from T Rails
A575 Specification for Steel Bars, Carbon, Merchant Quality, M-Grades
A576 Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality
A663/A663M Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties
A675/A675M Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties
A689 Specification for Carbon and Alloy Steel Bars for Springs
A696 Specification for Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A739 Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E112 Test Methods for Determining Average Grain Size

Other Standards
AIAGB-5 02.00 Primary Metals Tag Application Standard

Military Standard
MIL-STD-163 Steel Mill Products--Preparation for Shipment and Storage

Federal Standards
Fed.Std.No.183 Continuous Identification Marking of Iron and Steel Products

Index Terms

alloy steel bars; carbon steel bars; cold finished steel bars; general delivery requirements; hot wrought steel bars; steel bars; Alloy steel bars--specifications; Carbon steel bars/shapes--specifications; Cold-finished steel bars--specifications; General delivery requirements--steel; Hot wrought steel bars--specifications; Steel bars--specifications;

ICS Code

ICS Number Code 77.140.60 (Steel bars and rods)

DOI: 10.1520/A0029_A0029M-11A

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