ASTM A576 - 90b(2012)

    Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality

    Active Standard ASTM A576 | Developed by Subcommittee: A01.15

    Book of Standards Volume: 01.05


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    ASTM A576

    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.

    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 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.

    TABLE 1 Grade Designations and Chemical Requirements of Hot-Wrought Carbon Steel Bars

    Note—Grade designations and compositions correspond to the respective AISI designations and compositions.

    UNS DesignationA
    Grade
    Heat Chemical Ranges and Limits, %
    Carbon
    Manganese
    Phosphorus, max
    Sulfur, maxB
    Nonresulfurized Carbon SteelsC, D, E , F, G
    Low Manganese 1.00 % max or less
    G1008010080.10 max 0.300.500.0400.050
    G1010010100.080.130.300.600.0400.050
    G1012010120.100.150.300.600.0400.050
    G1015010150.130.180.300.600.0400.050
    G1016010160.130.180.600.900.0400.050
    G1017010170.150.200.300.600.0400.050
    G1018010180.150.200.600.900.0400.050
    G1019010190.150.200.701.000.0400.050
    G1020010200.180.230.300.600.0400.050
    G1021010210.180.230.600.900.0400.050
    G1022010220.180.230.701.000.0400.050
    G1023010230.200.250.300.600.0400.050
    G1025010250.220.280.300.600.0400.050
    G1026010260.220.280.600.900.0400.050
    G1029010290.250.310.600.900.0400.050
    G1030010300.280.340.600.900.0400.050
    G1035010350.320.380.600.900.0400.050
    G1037010370.320.380.701.000.0400.050
    G1038010380.350.420.600.900.0400.050
    G1039010390.370.440.701.000.0400.050
    G1040010400.370.440.600.900.0400.050
    G1042010420.400.470.600.900.0400.050
    G1043010430.400.470.701.000.0400.050
    G1044010440.430.500.300.600.0400.050
    G1045010450.430.500.600.900.0400.050
    G1046010460.430.500.701.000.0400.050
    G1049010490.460.530.600.900.0400.050
    G1050010500.480.550.600.900.0400.050
    G1053010530.480.550.701.000.0400.050
    G1055010550.500.600.600.900.0400.050
    G1060010600.550.650.600.900.0400.050
    G1070010700.650.750.600.900.0400.050
    G1078010780.720.850.300.600.0400.050
    G1080010800.750.880.600.900.0400.050
    G1084010840.800.930.600.900.0400.050
    G1090010900.850.980.600.900.0400.050
    G1095010950.901.030.300.500.0400.050
    G1513015130.100.161.101.400.0400.050
    G1518015180.150.211.101.400.0400.050
    G1522015220.180.241.101.400.0400.050
    G1524015240.190.251.351.650.0400.050
    G1525015250.230.290.801.100.0400.050
    G1526015260.220.291.101.400.0400.050
    G1527015270.220.291.201.500.0400.050
    G1536015360.300.371.201.500.0400.050
    G1541015410.360.441.351.650.0400.050
    G1547015470.430.511.351.650.0400.050
    G1548015480.440.521.101.400.0400.050
    G1551015510.450.560.851.150.0400.050
    G1552015520.470.551.201.500.0400.050
    G1561015610.550.650.751.050.0400.050
    G1566015660.600.710.851.150.0400.050
    G1572015720.650.761.001.300.0400.050
    Resulfurized Carbon SteelsC , E , G
    G1109011090.080.130.600.900.0400.080.13
    G1110011100.080.130.300.600.0400.080.13
    G1116011160.140.201.101.400.0400.160.23
    G1117011170.140.201.001.300.0400.080.13
    G1118011180.140.201.301.600.0400.080.13
    G1119011190.140.201.001.300.0400.240.33
    G1132011320.270.341.351.650.0400.080.13
    G1137011370.320.391.351.650.0400.080.13
    G1139011390.350.431.351.650.0400.130.20
    G1140011400.370.440.701.000.0400.080.13
    G1141011410.370.451.351.650.0400.080.13
    G1144011440.400.481.351.650.0400.240.33
    G1145011450.420.490.701.000.0400.040.07
    G1146011460.420.490.701.000.0400.080.13
    G1151011510.480.550.701.000.0400.080.13
    Rephosphorized and Resulfurized Carbon SteelE, G ,H
    Designation Grade CarbonManganesePhosphorusSulfurLead
    G1211012110.13 max0.600.900.070.12 0.100.15...
    G1212012120.13 max0.701.000.070.12 0.160.23...
    G1213012130.13 max0.701.000.070.12 0.240.33...
    G1215012150.09 max0.751.050.040.09 0.260.35...
    ... 12L140.15 max0.851.15 0.040.090.260.350.150.35

    A New designations established in accordance with Practice E527 and SAE J 1086.

    B Maximum unless otherwise indicated.

    C When silicon is required, the following ranges and limits are commonly specified: 0.10 %, max, 0.10 to 0.20 %, 0.15 to 0.35 %, or 0.20 to 0.40 %.

    D Copper can be specified when required as 0.20 % minimum.

    E When lead is required as an added element to a standard steel, a range of 0.15 to 0.35 % incl is specified. Such a steel is identified by inserting the letter L between the second and third numerals of the grade designation, for example, 10 L 45. A cast or heat analysis is not determinable when lead is added to the ladle stream.

    F When boron treatment is specified for killed steels, the steels can be expected to contain 0.0005 to 0.003 % boron.

    G The elements bismuth, calcium, selenium, or tellurium may be added as agreed between purchaser and supplier.

    H It is not common practice to produce these steels to specified limits for silicon because of its adverse effect on machinability.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

    A400 Practice for Steel Bars, Selection Guide, Composition, and Mechanical Properties

    A575 Specification for Steel Bars, Carbon, Merchant Quality, M-Grades

    E45 Test Methods for Determining the Inclusion Content of Steel

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    SAE Standard

    SAEJ1086 Recommended Practice for Numbering Metals and Alloys (UNS) Available from Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.


    ICS Code

    ICS Number Code 77.140.60 (Steel bars and rods)

    UNSPSC Code

    UNSPSC Code 30263600(Carbon steel bars)


    DOI: 10.1520/A0576-90BR12

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