ASTM A1040-04

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Designation:A1040–04
Standard Guide for
Specifying Harmonized Standard Grade Compositions for
Wrought Carbon, Low-Alloy, and Alloy Steels
This standard is issued under the fixed designation A 1040; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope A 941 Terminology Relating to Steel, Stainless Steel, Re-
lated Alloys, and Ferroalloys
1.1 ThisstandardprovidesaguidetoASTMSubcommittees
2.2 SAE Standards:
A01.02, A01.03, A01.06, A01.09, A01.11, A01.15, A01.19,
SAE J 403 Chemical Compositions of SAE Carbon Steels
A01.22, and A01.28 for specifying chemical composition
SAE J 404 Chemical Compositions of SAE Alloy Steels
limits of wrought carbon, low-alloy, and alloy steels. It is
SAE J 1249 Former SAE Standard and Former SAE EX-
intended that these recommended grade composition limits be
Steels
suitable for adoption by other standardization bodies that
prepare standards for carbon, low-alloy, and alloy steel prod-
3. Terminology
ucts, including discontinued steels.
3.1 Definitions of Terms Specific to This Standard:
1.2 Included in this guide are the recommendations for
3.1.1 long product, n—generic term describing wrought
determining the number of significant figures for specifying
bars, rod, wire, rail, tubing (welded and seamless), plate, and
chemical composition.
pipe.
1.3 The carbon and alloy steel grades in all standards
3.1.1.1 Discussion—Product forms such as “C” shapes,
overseen by the aforementioned ASTM subcommittees have
“HP” shapes, “L” shapes, “M” shapes, “MC” shapes, “S”
been included, except those grades applicable to restricted
shapes, “W” shapes, and sheet piling are considered long
special end uses.
products. Such product forms are produced to mechanical
1.4 Not addressed are minor composition modifications that
properties and are not normally produced to the chemical
a specific ASTM subcommittee may find necessary to accom-
compositions listed in this guide.
modate effects of normal processing or to enhance fabricability
3.1.2 flat product, n—generictermdescribingwroughtsheet
by the producer or user, or both.
and strip.
1.5 Also not generally addressed (except where established
3.2 Refer toTerminologyA 941 for additional definitions of
by ASTM subcommittees) is a complete rationalization of all
terms used in this guide.
limits,especiallywheresuchwouldconflictwithlong-standing
practices and is not justified by special technical effect.
4. Significance and Use
1.6 This guide does not address discontinued or formerly
4.1 It is anticipated that the ASTM Subcommittees A01.02,
standard steel grades. A listing of such steel grades can be
A01.03,A01.06,A01.09,A01.11,A01.15,A01.19,A01.22,and
found in SAE J 1249. Also excluded from this guide are cast
A01.28 will use the standard composition limits listed in this
materials and welding filler metals.
guide for the grades identified in their product specifications
2. Referenced Documents unless there is a specific technical justification for doing
2 otherwise.
2.1 ASTM Standards:
4.2 Thecompositionlimitsgiveninthisguidearetobeused
A 751 Test Methods, Practices, and Terminology for
as guides in determining limits for each of the elements
Chemical Analysis of Steel Products
included in the total composition of each grade. The compo-
sition limits have been established with the intent that each
This guide is under the jurisdiction of ASTM Committee A01 on Steel, ASTM subcommittee will find it necessary to require only a
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
minimum number of changes to reflect specific technical
A01.97 on Harmonization of Wrought Carbon and Alloy Steel Requirements.
effects. Section 5 lists the general guidelines followed for
Current edition approved Dec. 1, 2004. Published January 2005.
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
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A1040–04
TABLE 1 Expression of Chemical Composition Limits
6.2 Unless adopted by the appropriate product subcommit-
Chemical Element Chemical Composition Limit tee in an ASTM standard, the compositions described in this
guide shall not be used for specifying an ASTM product.
C, Cr, Cu, Mn, Mo, Ni, Pb, Si Two decimal places (0.xx % ) or (1.xx %)
Al, Ca, N, Nb (Cb), P, S, Sn, Ti, V Three decimal places (0.xxx %)
6.3 Criteria for the addition or deletion of grades from the
B Four decimal places (0.xxxx %)
grade lists in this guide is as follows: (1) New grades will be
considered based upon the grade meeting a standard grade
determining the limits for each element; the limits established
designation and chemistry; (2) New grades shall have an
in this guide are based upon these guidelines.
annual production or consumption of 250 tons (225 Mg); (3)
New grades shall have the sponsorship of at least two indi-
5. General Guidelines Used for Determining Composition
vidual users or producers.
Limits
5.1 Table 1 gives typical chemical composition limits for
7. Keywords
respective elements.
7.1 alloy steels; carbon steels; harmonized carbon, low-
6. Harmonized Standard Grade Wrought Carbon, Low-
alloy, and alloy steel compositions; low-alloy steels
Alloy, and Alloy Steel Compositions
6.1 The harmonized composition limits are given in Tables
2-17, grouped by metallurgical classification. Within all tables,
grades are listed in numerical order.
A1040–04
TABLE 2 Chemical Composition for Nonresulfurized Carbon Steels
A,B,C
Composition, %
Grade P max S max P max S max
CMn
Long Product Flat Product
1001 0.01 max 0.35 max 0.030 0.035
1002 0.02 max 0.35 max 0.030 0.035
1003 0.04 max 0.35 max 0.030 0.035
1004 0.02/0.06 0.35 max 0.030 0.035
1005 0.06 max 0.35 max 0.040 0.050 0.030 0.035
B
1006 0.02/0.08 0.45 max 0.030 0.035
D
1006 0.08 max 0.25-0.45 0.040 0.050
E
1006 0.08 max 0.45 max 0.030 0.035
1007 0.02/0.10 0.50 max 0.030 0.035
D
1008 0.10 max 0.30-0.50 0.040 0.050
E
1008 0.10 max 0.50 max 0.030 0.035
1009 0.15 max 0.60 max 0.030 0.035
1010 0.08-0.13 0.30-0.60 0.040 0.050 0.030 0.035
1011 0.08-0.13 0.60-0.90 0.040 0.050
1012 0.10-0.15 0.30-0.60 0.040 0.050 0.030 0.035
D,F
1013 0.11-0.16 0.50-0.80 0.040 0.050
E
1013 0.11-0.16 0.30-0.60 0.030 0.035
1015 0.13-0.18 0.30-0.60 0.040 0.050 0.030 0.035
1016 0.13-0.18 0.60-0.90 0.040 0.050 0.030 0.035
1017 0.15-0.20 0.30-0.60 0.040 0.050 0.030 0.035
1018 0.15-0.20 0.60-0.90 0.040 0.050 0.030 0.035
1019 0.15-0.20 0.70-1.00 0.040 0.050 0.030 0.035
1020 0.18-0.23 0.30-0.60 0.040 0.050 0.030 0.035
1021 0.18-0.23 0.60-0.90 0.040 0.050 0.030 0.035
1022 0.18-0.23 0.70-1.00 0.040 0.050 0.030 0.035
1023 0.20-0.25 0.30-0.60 0.040 0.050 0.030 0.035
1024 0.18-0.25 1.30-1.65 0.035 0.035
1025 0.22-0.28 0.30-0.60 0.040 0.050 0.030 0.035
1026 0.22-0.28 0.60-0.90 0.040 0.050 0.030 0.035
1027 0.22-0.29 1.20-1.55 0.035 0.035
1029 0.25-0.31 0.60-0.90 0.040 0.050
1030 0.28-0.34 0.60-0.90 0.040 0.050 0.030 0.035
1033 0.30-0.36 0.70-1.00 0.040 0.050 0.030 0.035
1034 0.32-0.38 0.50-0.80 0.040 0.050
1035 0.32-0.38 0.60-0.90 0.040 0.050 0.030 0.035
1037 0.32-0.38 0.70-1.00 0.040 0.050 0.030 0.035
1038 0.35-0.42 0.60-0.90 0.040 0.050 0.030 0.035
1039 0.37-0.44 0.70-1.00 0.040 0.050 0.030 0.035
1040 0.37-0.44 0.60-0.90 0.040 0.050 0.030 0.035
1042 0.40-0.47 0.60-0.90 0.040 0.050 0.030 0.035
1043 0.40-0.47 0.70-1.00 0.040 0.050 0.030 0.035
1044 0.43-0.50 0.30-0.60 0.040 0.050
1045 0.43-0.50 0.60-0.90 0.040 0.050 0.030 0.035
1046 0.43-0.50 0.70-1.00 0.040 0.050 0.030 0.035
1049 0.46-0.53 0.60-0.90 0.040 0.050 0.030 0.035
1050 0.48-0.55 0.60-0.90 0.040 0.050 0.030 0.035
1053 0.48-0.55 0.70-1.00 0.040 0.050
1055 0.50-0.60 0.60-0.90 0.040 0.050 0.030 0.035
1059 0.55-0.65 0.50-0.80 0.040 0.050
1060 0.55-0.65 0.60-0.90 0.040 0.050 0.030 0.035
1064 0.60-0.70 0.50-0.80 0.040 0.050 0.030 0.035
1065 0.60-0.70 0.60-0.90 0.040 0.050 0.030 0.035
1069 0.65-0.75 0.40-0.70 0.040 0.050
1070 0.65-0.75 0.60-0.90 0.040 0.050 0.030 0.035
G
1070m 0.65-0.75 0.80-1.10 0.025 0.025
1071 0.65-0.70 0.75-1.05 0.040 0.050
1074 0.70-0.80 0.50-0.80 0.040 0.050 0.030 0.035
1075 0.70-0.80 0.40-0.70 0.040 0.050
1078 0.72-0.85 0.30-0.60 0.040 0.030 0.030 0.035
1080 0.75-0.88 0.60-0.90 0.040 0.050 0.030 0.035
1084 0.80-0.93 0.60-0.90 0.040 0.050 0.030 0.035
1085 0.80-0.93 0.70-1.00 0.040 0.050 0.030 0.035
1086 0.80-0.93 0.30-0.50 0.040 0.050 0.030 0.035
1090 0.85-0.98 0.60-0.90 0.040 0.050 0.030 0.035
1095 0.90-1.03 0.30-0.50 0.040 0.050 0.030 0.035
A
Where silicon is required, the following ranges and limits are commonly specified: 0.10 % maximum, 0.10 % to 0.20 %, 0.15 % to 0.35 %, 0.20 % to 0.40 %, or 0.30%
to 0.60 %.
B
If required, copper can be specified as 0.20 % minimum.
C
Where boron treatment for killed steel is specified for enhanced hardenability, titanium is generally added to shield the boron from oxidation. Boron levels between
0.0005 % and 0.0030 % can be expected for this practice. If the usual titanium addition is not permitted, the steel may contain up to 0.0050 % boron for enhanced
hardenability.
A1040–04
D
Long product.
E
Flat product.
F
SAE 1013 has chemical limits for manganese of 0.30-0.60 %.
G
1070m has chemical limits for silicon, 0.15-0.35 %; chromium, 0.20 % maximum; nickel, 0.25 % maximum; and molybdenum, 0.10 % maximum.
TABLE 3 Chemical Composition for Resulfurized Steels
A,B
Composition, %
Grade
C Mn P max S max
1108 0.08-0.13 0.60-0.80 0.040 0.08-0.13
1109 0.08-0.13 0.60-0.90 0.040 0.08-0.13
1110 0.08-0.13 0.30-0.60 0.040 0.08-0.13
1115 0.13-0.20 0.60-0.90 0.040 0.08-0.13
1116 0.14-0.20 1.10-1.40 0.040 0.16-0.23
1117 0.14-0.20 1.00-1.30 0.040 0.08-0.13
1118 0.14-0.20 1.30-1.60 0.040 0.08-0.13
1119 0.14-0.20 1.00-1.30 0.040 0.24-0.33
1132 0.27-0.32 1.35-1.65 0.040 0.08-0.13
1137 0.32-0.39 1.35-1.65 0.040 0.08-0.13
1139 0.35-0.43 1.35-1.65 0.040 0.13-0.20
1140 0.37-0.44 0.70-1.00 0.040 0.08-0.13
1141 0.37-0.45 1.35-1.65 0.040 0.08-0.13
1144 0.40-0.48 1.35-1.65 0.040 0.24-0.33
1145 0.42-0.49 0.70-1.00 0.040 0.04-0.07
1146 0.42-0.49 0.70-1.00 0.040 0.08-0.13
1151 0.48-0.55 0.70-1.00 0.040 0.08-0.13
A
It is not common practice to produce these steels to specified limits for silicon because of its adverse effect on machinability.
B
Where silicon is required, the following ranges and limits are commonly specified: 0.10 % maximum, 0.10 % to 0.20 %, 0.15 % to 0.35 %, 0.20 % to 0.40 %, or 0.30%
to 0.60 %.
TABLE 4 Chemical Composition for Rephosphorized and Resulfurized Carbon Steels
A,B
Composition, %
Grade
CMn P S
1211 0.13 max 0.60-0.90 0.07-0.12 0.10-0.15
1212 0.13 max 0.70-1.00 0.07-0.12 0.16-0.23
1213 0.13 max 0.70-1.00 0.07-0.12 0.24-0.33
1215 0.09 max 0.75-1.05 0.04-0.09 0.26-0.35
A
It is not common practice to produce these steels to specified limits for silicon because of its adverse effect on machinability.
B
Where silicon is required, the following ranges and limits are commonly specified: 0.10 % maximum, 0.10 % to 0.20 %, 0.15 % to 0.35 %, 0.20 % to 0.40 %, or 0.30%
to 0.60 %.
A1040–04
TABLE 5 Chemical Composition for High-Manganese Carbon Steels
A,B,C
Composition, %
Grade P max S max P max S max
CMn
Long Product Flat Product
1513 0.10-0.16 1.10-1.40 0.040 0.050
1518 0.15-0.21 1.10-1.40 0.040 0.050
1522 0.18-0.24 1.10-1.40 0.040 0.050
1524 0.19-0.25 1.35-1.65 0.040 0.050 0.030 0.035
1525 0.23-0.29 0.80-1.10 0.040 0.050
1526 0.22-0.29 1.10-1.40 0.040 0.050
1527 0.22-0.29 1.20-1.50 0.040 0.050 0.030 0.035
1536 0.30-0.37 1.20-1.50 0.040 0.050 0.030 0.035
1541 0.36-0.44 1.35-1.65 0.040 0.050 0.030 0.035
1547 0.43-0.51 1.35-1.65 0.040 0.050
1548 0.44-0.52 1.10-1.40 0.040 0.050 0.030 0.035
1551 0.45-0.56 0.85-1.15 0.040 0.050
1552 0.47-0.55 1.20-1.50 0.040 0.050 0.030 0.035
1561 0.55-0.65 0.75-1.05 0.040 0.050
1566 0.60-0.71 0.85-1.15 0.040 0.050
1572 0.65-0.76 1.00-1.30 0.040 0.050
A
Where silicon is required, the following ranges and limits are commonly specified: 0.10 % maximum, 0.10 % to 0.20 %, 0.15 % to 0.35 %, 0.20 % to 0.40 %, or 0.30%
to 0.60 %.
B
If required, copper can be specified as 0.20 % minimum.
C
Ifleadisrequiredasanaddedelementtoastandardsteel,arangeof0.15 %to0.35 %inclusiveisspecified.Suchasteelisidentifiedbyinsertingtheletter“L”between
the second and third numerals of the grade designation, for example, 15L25. A heat analysis is not determinable where lead is added to the ladle stream.
TABLE 6 Chemical Composition for Carbon Steels with Hardenability Requirements
Composition, %
Grade
C Mn P max S max Si
1038H 0.34-0.43 0.50-1.00 0.040 0.050 0.15-0.30
1045H 0.42-0.51 0.50-1.00 0.040 0.050 0.15-0.30
1522H 0.17-0.25 1.00-1.50 0.040 0.050 0.15-0.30
1524H 0.18-0.26 1.25-1.75 0.040 0.050 0.15-0.30
1526H 0.21-0.30 1.00-1.50 0.040 0.050 0.15-0.30
1541H 0.35-0.45 1.25-1.75 0.040 0.050 0.15-0.30
1552H 0.47-0.55 1.00-1.50 0.040 0.050 0.15-0.30
TABLE 7 Chemical Composition for Standard High-Manganese Boron Carbon Steels with Hardenability Requirements
A
Composition, %
Grade
CMn P S Si
15B21H 0.17-0.24 0.70-1.20 0.040 0.050 0.15-0.30
15B35H 0.31-0.39 0.70-1.20 0.040 0.050 0.15-0.30
15B37H 0.30-0.39 1.00-1.50 0.040 0.050 0.15-0.30
15B41H 0.35-0.45 1.25-1.75 0.040 0.050 0.15-0.30
15B48H 0.43-0.53 1.00-1.50 0.040 0.050 0.15-0.30
15B62H 0.54-0.67 1.00-1.50 0.040 0.050 0.15-0.30
A
Where boron treatment for killed steel is specified for enhanced hardenability, titanium is generally added to shield the boron from oxidation. Boron levels between
0.0005 % and 0.0030 % can be expected for this practice. If the usual titanium addition is not permitted, the steel may contain up to 0.0050 % boron for enhanced
hardenability.
TABLE 8 Chemical Composition for Standard High-Manganese Boron Carbon Steels with Restricted Hardenability Requirements
A
Composition, %
Grade
CMn P S Si
15B21 RH 0.17-0.22 0.80-1.10 0.035 0.040 0.15-0.35
15B35 RH 0.33-0.38 0.80-1.10 0.035 0.040 0.15-0.35
A
Where boron treatment for killed steel is specified for enhanced hardenability, titanium is generally added to shield the boron from oxidation. Boron levels between
0.0005 % and 0.0030 % can be expected for this practice. If the usual titanium addition is not permitted, the steel
...