ASTM A871 A871M-2012 Standard Specification for High-Strength Low-Alloy Structural Steel Plate With Atmospheric Corrosion Resistance 《具备耐大气腐蚀性的高强度低合金钢板标准规格》.pdf

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1、Designation:A871/A871M03(Reapproved 2007) Designation: A871/A871M 12Standard Specification forHigh-Strength Low-Alloy Structural Steel Plate WithAtmospheric Corrosion Resistance1This standard is issued under the fixed designation A871/A871M; the number immediately following the designation indicates

2、 the yearof 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 () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers high-strength low-al

3、loy steel plate intended for use in tubular structures and poles or in othersuitable applications. Two grades, 60 and 65, may be provided as-rolled, normalized or quenched and tempered as required to meetthe specified mechanical requirements.1.2 The atmospheric corrosion resistance of this steel in

4、most environments is substantially better than that of carbon structuralsteels with or without copper addition (see Note 1). When properly exposed to the atmosphere, this steel can be used bare(unpainted) for many applications.NOTE 1For methods of estimating the atmospheric corrosion resistance of l

5、ow-alloy steels, see Guide G101.1.3 When the steel is to be welded, it is presupposed that welding procedures suitable for the grade of steel and intended useor service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.1.4 Supplementary requirements in accordan

6、ce with Specification A6/A6M are available, but shall apply only when specifiedby the purchaser at time of ordering.1.5 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shownin brackets. The values stated in each system are no

7、t exact equivalents; therefore, each system must be used independently of theother. Combining values from the two systems may result in nonconformance with the specification.2. Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Pla

8、tes, Shapes, and Sheet PilingA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA673/A673M Specification for Sampling Procedure for Impact Testing of Structural SteelG101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels3. General Requirements for D

9、elivery3.1 Material furnished under this specification shall conform to the requirements of the current edition of SpecificationA6/A6M,for the ordered material, unless a conflict exists in which case this specification shall prevail.4. Materials and Manufacture4.1 The steel shall be made to fine gra

10、in practice.5. Heat Treatment5.1 Grade 65 in thicknesses of316 to34 in. 5 to 20 mm and Grade 60 in thicknesses of316 to 138 in. 5 to 35 mm are normallyfurnished in the as-rolled condition. The manufacturer has the option to heat treat this material to meet the mechanical requirementsof Section 7. Qu

11、enched and tempered material shall be heat treated by heating to not less than 1650F 900C, holding a sufficienttime to attain uniform heat throughout the material, quenching in a suitable medium, and tempering at not less than 1100F595C. Heat treating temperatures shall be reported on the test certi

12、ficates.5.2 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical1This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.02on St

13、ructural Steel for Bridges, Buildings, Rolling Stock and Ships.Current edition approved Sept.May 1, 2007.2012. Published September 2007.May 2012. Originally approved in 1987. Last previous edition approved in 20032007 asA871/A871M 03 (2007). DOI: 10.1520/A0871_A0871M-03R07. 10.1520/A0871_A0871M-12.2

14、For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only

15、to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version

16、of the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.requirements. The individual manufacturer

17、 shall be contacted to determine the actual maximum thickness for each grade and heattreatment method.6. Chemical Requirements6.1 The heat analysis shall conform to the chemical requirements of Table 1.6.2 The steel shall conform on product analysis to the chemical requirements of Table 1, subject t

18、o the product analysistolerances in Specification A6/A6M.TABLE 1 Chemical Requirements (Heat Analysis)ElementComposition, %Type I Type II Type III Type IVCarbonA0.19 max 0.20 max 0.15 max 0.17 maxManganeseA0.801.35 0.751.35 0.801.35 0.501.20Phosphorus 0.04 max 0.04 max 0.04 max0.04maxPhosphorus 0.04

19、 max 0.04 max 0.04 maxSulfur 0.05 max 0.05 max 0.05 max0.05maxSulfur 0.05 max 0.05 max 0.05 maxSilicon 0.300.65 0.150.50 0.150.40 0.250.50Nickel 0.40 max 0.50 max 0.250.50 0.40 maxChromium 0.400.70 0.400.70 0.300.50 0.400.70Molybdenum . . . . . . . . . 0.10 maxCopper 0.250.40 0.200.40 0.200.50 0.300

20、.50Vanadium 0.020.10 0.010.10 0.010.10 .Columbium . . . . . . . . . 0.0050.05BAFor each reduction of 0.01 percentage point below the specified maximum forcarbon, an increase of 0.06 percentage point above the specified maximum formanganese is permitted, up to a maximum of 1.50 %.BFor plates under12

21、in. 13 mm in thickness, the minimum columbium iswaived.A871/A871M 1226.3 The atmospheric corrosion-resistance index, calculated on the basis of the heat analysis for the steel, as described in GuideG101Predictive Method Based on the Data of Larabee and Coburn, shall be 6.0 or higher.NOTE 2The user i

22、s cautioned that the Guide G101 (Predictive Method Based on the Data of Larabee and Coburn) for calculation of an atmosphericcorrosion-resistance index has only been verified for the composition limits stated in that guide.6.4 When required, the manufacturer shall supply evidence of corrosion resist

23、ance satisfactory to the purchaser.7. Mechanical Requirements7.1 Tension Tests:7.1.1 The steel as represented by the tension test specimens shall conform to the tensile requirements of Table 2.7.1.2 For adjustments in Table 2 percentage elongation requirements for material thickness under 0.312 in.

24、8 mm and over 3.5in. 90 mm, see Specification A6/A6M.TABLE 2 Tensile RequirementsAGradeYield StrengthBmin. ksi MPaTensile Strengthmin. ksi MPaMinimumElongation, %CIn8in.200 mmIn2in.50 mm606560 41565 45075 52080 55016151817AFor plates wider than 24 in. 600 mm, the test specimen is taken in thetransve

25、rse direction. See 11.2 Tension Tests section of Specification A6/A6M.BMeasured at 0.2 % offset or 0.5 % extension under load as described in SDectermination 13 of Ten ysield ste Propengrthies section of Test Methods A370.CFor plates wider than 24 in. 600 mm, the elongation requirement is reducedthr

26、ee percentage points.A871/A871M 1237.2 Charpy V-Notch Impact Tests:7.2.1 The steel, as represented by the Charpy V-Notch test, shall conform to the impact test requirements of Table 3.7.2.2 If more stringent impact requirements are required, they shall be negotiated between the purchaser and the man

27、ufacturer.8. Test Specimens and Number of Tests8.1 The purchaser shall indicate on the purchase order the frequency of Charpy V-Notch Impact Testing, as provided for inSpecification A673/A673M. If the purchase order does not specify the frequency, “H” testing frequency shall be supplied.9. Keywords9

28、.1 as-rolled; atmospheric corrosion resistance; high-strength; low-alloy; normalized; plate; poles; quenched; steel; structuralsteel; tempered; tubular structuresSUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase order or contract.Standardized suppl

29、ementary requirements for use at the option of the purchaser are listed inSpecification A6/A6M.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A871/A871M 03 (2007) that may impact the use of this standard. (Approved May 1, 2012.)(

30、1) Revised Table 1.(2) Editorially revised Table 2.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent righ

31、ts, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for

32、revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing

33、you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may

34、be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 3 Charpy V-Notch Impact Test RequirementsPlateThicknessin mmAbsorbedEnergyft-lb JTemperatureF CUp to12 12 inclOver12 1215 2015 200 18 20 29A871/A871M 124