Designation:A1040–04
Standard Guide for
Specifying Harmonized Standard Grade Compositions for Wrought Carbon,Low-Alloy,and Alloy Steels1
This standard is issued under thefixed designation A1040;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
1.1This standard provides a guide to ASTM Subcommittees A01.02,A01.03,A01.06,A01.09,A01.11,A01.15,A01.19, A01.22,and A01.28for specifying chemical composition limits of wrought carbon,low-alloy,and alloy steels.It is intended that these recommended grade composition limits be suitable for adoption by other standardization bodies that prepare standards for carbon,low-alloy,and alloy steel prod-ucts,including discontinued steels.
1.2Included in this guide are the recommendations for determining the number of significantfigures for specifying chemical composition.
1.3The carbon and alloy steel grades in all standards overseen by the aforementioned ASTM subcommittees have been included,except those grades applicable to restricted special end uses.
1.4Not addressed are minor composition modifications that
a specific ASTM subcommittee mayfind necessary to accom-modate effects of normal processing or to enhance fabricability by the producer or user,or both.
1.5Also not generally addressed(except where established by ASTM subcommittees)is a complete rationalization of all limits,especially where such would conflict with long-standing practices and is not justified by special technical effect.
1.6This guide does not address discontinued or formerly standard steel grades.A listing of such steel grades can be found in SAE J1249.Also excluded from this guide are cast materials and weldingfiller metals.打造心灵的
韧度 2.Referenced Documents
2.1ASTM Standards:2
A751Test Methods,Practices,and Terminology for Chemical Analysis of Steel Products
氟化钙
A941Terminology Relating to Steel,Stainless Steel,Re-lated Alloys,and Ferroalloys
2.2SAE Standards:
SAE J403Chemical Compositions of SAE Carbon Steels3 SAE J404Chemical Compositions of SAE Alloy Steels3 SAE J1249Former SAE Standard and Former SAE EX-Steels3
3.Terminology
3.1Definitions of Terms Specific to This Standard:
3.1.1long product,n—generic term describing wrought bars,rod,wire,rail,tubing(welded and seamless),plate,and pipe.
3.1.1.1Discussion—Product forms such as“C”shapes,“HP”shapes,“L”shapes,“M”shapes,“MC”shapes,“S”shapes,“W”shapes,and sheet piling are considered long products.Such product forms are produced to mechanical properties and are not normally produced to the chemical compositions listed in this guide.
3.1.2flat product,n—generic term describing wrought sheet and strip.
3.2Refer to Terminology A941for additional definitions of terms used in this guide.
4.Significance and Use
4.1It is anticipated that the ASTM Subcommittees A01.02, A01.03,A01.06,A01.09,A01.11,A01.15,A01.19,A01.22,and A01.28will use the standard composition limits listed in this guide for the grades identified in their product specifications unless there is a specific technical justification for doing otherwise.
4.2The composition limits given in this guide are to be used as guides in determining limits for each
of the elements included in the total composition of each grade.The compo-sition limits have been established with the intent that each ASTM subcommittee willfind it necessary to require only a minimum number of changes to reflect specific technical effects.Section5lists the general guidelines followed for
1This guide is under the jurisdiction of ASTM Committee A01on Steel, Stainless Steel,and Related Alloys and is the direct responsibility of Subcommittee A01.97on Harmonization of Wrought Carbon and Alloy Steel Requirements.
Current edition approved Dec.1,2004.Published January2005.
2For referenced ASTM standards,visit the ASTM website,,or contact ASTM Customer Service at For Annual Book of ASTM
Standards volume information,refer to the standard’s Document Summary page on the ASTM website.
3Available from Society of Automotive Engineers(SAE),400Commonwealth Dr.,Warrendale,PA15096-0001.
Copyright©ASTM International,100Barr Harbor Drive,PO Box C700,West Conshohocken,PA19428-2959,United States.
determining the limits for each element;the limits established in this guide are based upon these guidelines.
5.General Guidelines Used for Determining Composition Limits
5.1Table 1gives typical chemical composition limits for respective elements.
碳纤维布6.Harmonized Standard Grade Wrought Carbon,Low-Alloy,and Alloy Steel Compositions
6.1The harmonized composition limits are given in Tables 2-17,grouped by metallurgical classification.Within all tables,grades are listed in numerical order.
6.2Unless adopted by the appropriate product subcommit-tee in an ASTM standard,the compositions described in this guide shall not be used for specifying an ASTM product.6.3Criteria for the addition or deletion of grades from the grade lists in this guide is as follows:(1)New grades will be considered based upon the grade meeting a standard grade designation and chemistry;(2)New grades shall have an annual production or consumption of 250tons (225Mg);(3)New grades shall have the spons
orship of at least two indi-vidual users or producers.
7.Keywords
7.1alloy steels;carbon steels;harmonized carbon,low-alloy,and alloy steel compositions;low-alloy steels
TABLE 1Expression of Chemical Composition Limits
Chemical Element
Chemical Composition Limit 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 %)B
Four decimal places (0.xxxx
TABLE 2Chemical Composition for Nonresulfurized Carbon Steels
Grade
Composition,A ,B ,C %
C Mn P max
S max
P max
S max
Long Product
Flat Product
10010.01max 0.35max 0.0300.03510020.02max 0.35max 0.0300.03510030.04max 0.35max 0.0300.03510040.02/0.060.35max 0.0300.03510050.06max 0.35max 0.0400.0500.0300.0351006B 0.02/0.080.45max 0.0300.0351006D 0.08max 0.25-0.450.040
0.050
1006E 0.08max 0.45max 0.0300.03510070.02/0.100.50max 0.030
0.0351008D 0.10max 0.30-0.500.040
0.050
1008E 0.10max 0.50max 0.0300.03510090.15max 0.60max 0.0300.03510100.08-0.130.30-0.600.0400.0500.0300.03510110.08-0.130.60-0.900.0400.05010120.10-0.150.30-0.600.0400.0500.0300.0351013D ,F 0.11-0.160.50-0.800.0400.0501013E 0.11-0.160.30-0.600.0300.03510150.13-0.180.30-0.600.0400.0500.0300.03510160.13-0.180.60-0.900.0400.0500.0300.03510170.15-0.200.30-0.600.0400.0500.0300.03510180.15-0.200.60-0.900.0400.0500.0300.03510190.15-0.200.70-1.000.0400.0500.0300.03510200.18-0.230.30-0.600.0400.0500.0300.03510210.18-0.230.60-0.900.0400.0500.0300.03510220.18-0.230.70-1.000.
0400.0500.0300.03510230.20-0.250.30-0.600.0400.0500.0300.03510240.18-0.25 1.30-1.650.0350.03510250.22-0.280.30-0.600.0400.0500.0300.03510260.22-0.280.60-0.900.0400.0500.030
0.035
10270.22-0.29 1.20-1.550.0350.03510290.25-0.310.60-0.900.0400.05010300.28-0.340.60-0.900.0400.0500.0300.03510330.30-0.360.70-1.000.0400.0500.0300.03510340.32-0.380.50-0.800.0400.05010350.32-0.380.60-0.900.0400.0500.0300.03510370.32-0.380.70-1.000.0400.0500.0300.03510380.35-0.420.60-0.900.0400.0500.0300.03510390.37-0.440.70-1.000.0400.0500.0300.03510400.37-0.440.60-0.900.0400.0500.0300.03510420.40-0.470.60-0.900.0400.0500.0300.03510430.40-0.470.70-1.000.0400.0500.0300.03510440.43-0.500.30-0.600.0400.05010450.43-0.500.60-0.900.0400.0500.0300.03510460.43-0.500.70-1.000.0400.0500.0300.03510490.46-0.530.60-0.900.0400.0500.0300.03510500.48-0.550.60-0.900.0400.0500.0300.03510530.48-0.550.70-1.000.0400.05010550.50-0.600.60-0.900.0400.0500.0300.03510590.55-0.650.50-0.800.0400.05010600.55-0.650.60-0.900.0400.0500.0300.03510640.60-0.700.50-0.800.0400.0500.0300.03510650.60-0.700.60-0.900.0400.0500.0300.03510690.65-0.750.40-0.700.0400.05010700.65-0.750.60-0.900.0400.0500.
030
0.035
1070m G 0.65-0.750.80-1.100.0250.02510710.65-0.700.75-1.050.0400.05010740.70-0.800.50-0.800.0400.0500.0300.03510750.70-0.800.40-0.700.0400.05010780.72-0.850.30-0.600.0400.0300.0300.03510800.75-0.880.60-0.900.0400.0500.0300.03510840.80-0.930.60-0.900.0400.0500.0300.03510850.80-0.930.70-1.000.0400.0500.0300.03510860.80-0.930.30-0.500.0400.0500.0300.03510900.85-0.980.60-0.900.0400.0500.0300.0351095
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.
D Long product.
E Flat product.
F SAE1013has chemical limits for manganese of0.30-0.60%.
G1070m has chemical limits for silicon,0.15-0.35%;chromium,0.20%maximum;nickel,0.25%maximum;and molybdenum,0.10%maximum.
TABLE3Chemical Composition for Resulfurized Steels
Grade
Composition,A,B%
C Mn P max S max
11080.08-0.130.60-0.800.0400.08-0.13
11090.08-0.130.60-0.900.0400.08-0.13
11100.08-0.130.30-0.600.0400.08-0.13外婆的厨房
11150.13-0.200.60-0.900.0400.08-0.13
11160.14-0.20 1.10-1.400.0400.16-0.23
11170.14-0.20 1.00-1.300.0400.08-0.13
11180.14-0.20 1.30-1.600.0400.08-0.13
11190.14-0.20 1.00-1.300.0400.24-0.33
11320.27-0.32 1.35-1.650.0400.08-0.13
11370.32-0.39 1.35-1.650.0400.08-0.13
11390.35-0.43 1.35-1.650.0400.13-0.20
11400.37-0.440.70-1.000.0400.08-0.13
11410.37-0.45 1.35-1.650.0400.08-0.13
11440.40-0.48 1.35-1.650.0400.24-0.33
11450.42-0.490.70-1.000.0400.04-0.07
11460.42-0.490.70-1.000.0400.08-0.13
11510.48-0.550.70-1.000.0400.08-0.13
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%to0.20%,0.15%to0.35%,0.20%to0.40%,or0.30% to0.60%.
TABLE4Chemical Composition for Rephosphorized and Resulfurized Carbon Steels
Grade
Composition,A,B%
C Mn P S
12110.13max0.60-0.900.07-0.120.10-0.15
12120.13max0.70-1.000.07-0.120.16-0.23
12130.13max0.70-1.000.07-0.120.24-0.33
12150.09max0.75-1.050.04-0.090.26-0.35
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%to0.20%,0.15%to0.35%,0.20%to0.40%,or0.30% to0.60%.
TABLE 5Chemical Composition for High-Manganese Carbon Steels
Grade
Composition,A ,B ,C %
C Mn P max
S max
P max
S max
Long Product
Flat Product
15130.10-0.16 1.10-1.400.0400.05015180.15-0.21 1.10-1.400.0400.05015220.18-0.24 1.10-1.400.0400.05015240.19-0.25 1.35-1.650.0400.0500.0300.035
15250.23-0.290.80-1.100.0400.05015260.22-0.29 1.10-1.400.0400.05015270.22-0.29 1.20-1.500.0400.0500.0300.03515360.30-0.37 1.20-1.500.0400.0500.0300.03515410.36-0.44 1.35-1.650.0400.0500.0300.03515470.43-0.51 1.35-1.650.0400.05015480.44-0.52 1.10-1.400.0400.0500.0300.03515510.45-0.560.85-1.150.0400.05015520.47-0.55 1.20-1.500.0400.0500.030
0.035
15610.55-0.650.75-1.050.0400.05015660.60-0.710.85-1.150.0400.0501572
0.65-0.76
1.00-1.30
0.040
0.050A
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
If lead is required as an added element to a standard steel,a range of 0.15%to 0.35%inclusive is specified.Such a steel is identified by inserting the letter “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 6Chemical Composition for Carbon Steels with Hardenability Requirements
Grade Composition,%
C Mn P max S max Si 1038H 0.34-0.430.50-1.000.0400.0500.15-0.301045H 0.42-0.510.50-1.000.0400.0500.15-0.301522H 0.17-0.25 1.00-1.500.0400.0500.15-0.301524H 0.18-0.26 1.25-1.750.0400.0500.15-0.301526H 0.21-0.30 1.00-1.500.0400.0500.15-0.301541H 0.35-0.45 1.25-1.750.0400.0500.15-0.301552H
0.47-0.55
1.00-1.50
0.040
0.050
0.15-0.30
TABLE 7Chemical Composition for Standard High-Manganese Boron Carbon Steels with Hardenability Requirements
Grade Composition,A %
C Mn P S Si 15B21H 0.17-0.240.70-1.200.0400.0500.15-0.3015B35H 0.31-0.390.70-1.200.0400.0500.15-0.3015B37H 0.30-0.39 1.00-1.500.0400.0500.15-0.3015B41H 0.35-0.45 1.25-1.750.0400.0500.15-0.3015B48H 0.43-0.53 1.00-1.500.0400.0500.15-0.3015B62H
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 8Chemical Composition for Standard High-Manganese Boron Carbon Steels with Restricted Hardenability Requirements
Grade Composition,A %
C Mn P S Si 15B21RH 0.17-0.220.80-1.100.0350.0400.15-0.3515B35RH
0.33-0.38
0.80-1.10
0.035
0.040
0.15-0.35
A国际海事组织
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 expect
ed for this practice.If the usual titanium addition is not permitted,the steel may contain up to 0.0050%boron for enhanced hardenability.
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