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ASTM A576 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM A576 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.
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.
Merchant quality hot-wrought carbon steel bars are covered in Specification A575.
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.

Related Specifications of ASTM A576

ASTM A576 Chemical Composition

UNS DesignationA Grade Heat Chemical Ranges and Limits, %
C Mn P, max S, maxB Pb
Nonresulfurized Carbon SteelsC, D, E, F, G Low Manganese 1.00 % max or less
G10080 1008 0.10 max 0.30-0.50 0.040 0.050 ...
G10100 1010 0.08-0.13 0.30-0.60 0.040 0.050 ...
G10120 1012 0.10-0.15 0.30-0.60 0.040 0.050 ...
G10150 1015 0.13-0.18 0.30-0.60 0.040 0.050 ...
G10160 1016 0.13-0.18 0.60-0.90 0.040 0.050 ...
G10170 1017 0.15-0.20 0.30-0.60 0.040 0.050 ...
G10180 1018 0.15-0.20 0.60-0.90 0.040 0.050 ...
G10190 1019 0.15-0.20 0.70-1.00 0.040 0.050 ...
G10200 1020 0.18-0.23 0.30-0.60 0.040 0.050 ...
G10210 1021 0.18-0.23 0.60-0.90 0.040 0.050 ...
G10220 1022 0.18-0.23 0.70-1.00 0.040 0.050 ...
G10230 1023 0.20-0.25 0.30-0.60 0.040 0.050 ...
G10250 1025 0.22-0.28 0.30-0.60 0.040 0.050 ...
G10260 1026 0.22-0.28 0.60-0.90 0.040 0.050 ...
G10290 1029 0.25-0.31 0.60-0.90 0.040 0.050 ...
G10300 1030 0.28-0.34 0.60-0.90 0.040 0.050 ...
G10350 1035 0.32-0.38 0.60-0.90 0.040 0.050 ...
G10370 1037 0.32-0.38 0.70-1.00 0.040 0.050 ...
G10380 1038 0.35-0.42 0.60-0.90 0.040 0.050 ...
G10390 1039 0.37-0.44 0.70-1.00 0.040 0.050 ...
G10400 1040 0.37-0.44 0.60-0.90 0.040 0.050 ...
G10420 1042 0.40-0.47 0.60-0.90 0.040 0.050 ...
G10430 1043 0.40-0.47 0.70-1.00 0.040 0.050 ...
G10440 1044 0.43-0.50 0.30-0.60 0.040 0.050 ...
G10450 1045 0.43-0.50 0.60-0.90 0.040 0.050 ...
G10460 1046 0.43-0.50 0.70-1.00 0.040 0.050 ...
G10490 1049 0.46-0.53 0.60-0.90 0.040 0.050 ...
G10500 1050 0.48-0.55 0.60-0.90 0.040 0.050 ...
G10530 1053 0.48-0.55 0.70-1.00 0.040 0.050 ...
G10550 1055 0.50-0.60 0.60-0.90 0.040 0.050 ...
G10600 1060 0.55-0.65 0.60-0.90 0.040 0.050 ...
G10700 1070 0.65-0.75 0.60-0.90 0.040 0.050 ...
G10780 1078 0.72-0.85 0.30-0.60 0.040 0.050 ...
G10800 1080 0.75-0.88 0.60-0.90 0.040 0.050 ...
G10840 1084 0.80-0.93 0.60-0.90 0.040 0.050 ...
G10900 1090 0.85-0.98 0.60-0.90 0.040 0.050 ...
G10950 1095 0.90-1.03 0.30-0.50 0.040 0.050 ...
High Manganese 1.65 % max or less
G15130 1513 0.10-0.16 1.10-1.40 0.040 0.050 ...
G15180 1518 0.15-0.21 1.10-1.40 0.040 0.050 ...
G15220 1522 0.18-0.24 1.10-1.40 0.040 0.050 ...
G15240 1524 0.19-0.25 1.35-1.65 0.040 0.050 ...
G15250 1525 0.23-0.29 0.80-1.10 0.040 0.050 ...
G15260 1526 0.22-0.29 1.10-1.40 0.040 0.050 ...
G15270 1527 0.22-0.29 1.20-1.50 0.040 0.050 ...
G15360 1536 0.30-0.37 1.20-1.50 0.040 0.050 ...
G15410 1541 0.36-0.44 1.35-1.65 0.040 0.050 ...
G15470 1547 0.43-0.51 1.35-1.65 0.040 0.050 ...
G15480 1548 0.44-0.52 1.10-1.40 0.040 0.050 ...
G15510 1551 0.45-0.56 0.85-1.15 0.040 0.050 ...
G15520 1552 0.47-0.55 1.20-1.50 0.040 0.050 ...
G15610 1561 0.55-0.65 0.75-1.05 0.040 0.050 ...
G15660 1566 0.60-0.71 0.85-1.15 0.040 0.050 ...
G15720 1572         0.65-0.76  1.00-1.30 0.040 0.050 ...
Resulfurized Carbon SteelsC, E, G
G11090 1109 0.08-0.13 0.60-0.90 0.040 0.08-0.13 ...
G11100 1110 0.08-0.13 0.30-0.60 0.040 0.08-0.13 ...
G11160 1116 0.14-0.20 1.10-1.40 0.040 0.16-0.23 ...
G11170 1117 0.14-0.20 1.00-1.30 0.040 0.08-0.13 ...
G11180 1118 0.14-0.20 1.30-1.60 0.040 0.08-0.13 ...
G11190 1119 0.14-0.20 1.00-1.30 0.040 0.24-0.33 ...
G11320 1132 0.27-0.34 1.35-1.65 0.040 0.08-0.13 ...
G11370 1137 0.32-0.39 1.35-1.65 0.040 0.08-0.13 ...
G11390 1139 0.35-0.43 1.35-1.65 0.040 0.13-0.20 ...
G11400 1140 0.37-0.44 0.70-1.00 0.040 0.08-0.13 ...
G11410 1141 0.37-0.45 1.35-1.65 0.040 0.08-0.13 ...
G11440 1144 0.40-0.48 1.35-1.65 0.040 0.24-0.33 ...
G11450 1145 0.42-0.49 0.70-1.00 0.040 0.04-0.07 ...
G11460 1146 0.42-0.49 0.70-1.00 0.040 0.08-0.13 ...
G11510 1151 0.48-0.55 0.70-1.00 0.040 0.08-0.13 ...
Rephosphorized and Resulfurized Carbon SteelE, G, H
G12110 1211 0.13 max 0.60-0.90 0.07-0.12 0.10-0.15 ...
G12120 1212 0.13 max 0.70-1.00 0.07-0.12 0.16-0.23 ...
G12130 1213 0.13 max 0.70-1.00 0.07-0.12 0.24-0.33 ...
G12150 1215 0.09 max 0.75-1.05 0.04-0.09 0.26-0.35 ...
... 12L14 0.15 max 0.85-1.15 0.04-0.09 0.26-0.35 0.15-0.35
  • 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.

ASTM A576 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103

ASTM A576 Supplementary Requirements

S1 Cold-Working Quality
S2 Axle-Shaft Quality
S3 Scrapless Nut Quality
S4 Special Surface Quality
S5 Annealing
S6 Spheroidize Annealing
S7 Special Internal Soundness Requirement
S8 Nonmetallic Inclusion Requirement
S9 Special Hardenability Requirement
S10 Grain Size (Coarse)
S11 Grain Size (Fine)
S12 Restricted Incidental Elements
S13 Stress Relieving
S14 Special Straightness
S15 Pickling
S16 Blast Cleaning
S17 Coating
S18 Restricted Heat Chemical Ranges