1、Designation: A 786/A 786M 05Standard Specification forHot-Rolled Carbon, Low-Alloy, High-Strength Low-Alloy, andAlloy Steel Floor Plates1This standard is issued under the fixed designationA 786/A 786M; the number immediately following the designation indicates the yearof original adoption or, in the
2、 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This
3、 specification covers carbon, low-alloy, high-strength low-alloy, and alloy steel hot-rolled floor plates forflooring, stairways, transportation equipment, and generalstructural purposes. While it is generally provided in theas-rolled condition, floor plate also may be provided in theheat-treated co
4、ndition, depending on the material specification.Rolled floor plates have raised figures at regular intervals onone surface of the plate.1.2 Floor plate is available in dimensions that meet theclassification size limits for sheet, heavy thickness sheet coil,or plate. Maximum thickness for product de
5、livered under thisspecification is 1 in. 25 mm.1.3 When the steel is to be welded, it is presupposed that awelding procedure suitable for the grade of steel and intendeduse or service will be utilized. See Appendix X3 of Specifica-tion A 6/A 6M for information on weldability.1.4 The values stated in
6、 either inch-pound units or SI unitsare to be regarded separately as standard. The values stated ineach system are not exact equivalents; therefore, each system isto be used independently of the other, without combiningvalues.2. Referenced Documents2.1 ASTM Standards:2A 6/A 6M Specification for Gene
7、ral Requirements forRolled Structural Steel Bars, Plates, Shapes, and SheetPilingA 36/A 36M Specification for Carbon Structural SteelA 131/A 131M Specification for Structural Steel for ShipsA 242/A 242M Specification for High-Strength Low-AlloyStructural SteelA 514/A 514M Specification for High-Yiel
8、d-Strength,Quenched and Tempered Alloy Steel Plate, Suitable forWeldingA 568/A 568M Specification for Steel, Sheet, Carbon, andHigh-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA 570/A 570M Specification for Steel, Sheet and Strip,Carbon, Hot-Rolled, Structural QualityA 57
9、2/A 572M Specification for High-Strength Low-AlloyColumbium-Vanadium Structural SteelA 573/A 573M Specification for Structural Carbon SteelPlates of Improved ToughnessA 588/A 588M Specification for High-Strength Low-AlloyStructural Steel with 50 ksi 345 MPa Minimum YieldPoint to 4 in. 100 mm ThickA
10、606/A 606M Specification for Steel, Sheet and Strip,High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,with Improved Atmospheric Corrosion ResistanceA 635/A 635M Specification for Steel, Sheet and Strip,Heavy-Thickness Coils, Hot-Rolled, Carbon, Structural,High-Strength Low-Alloy, and High-Strengt
11、h Low-Alloywith Improved Formability, General Requirements forA 659/A 659M Specification for Commercial Steel (CS),Sheet and Strip, Carbon (0.16 Maximum to 0.25 Maxi-mum Percent), Hot-RolledA 709/A 709M Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, andBars and
12、 Quenched-and-Tempered Alloy Structural SteelPlates for BridgesA 829/A 829M Specification for Alloy Structural SteelPlatesA 830/A 830M Specification for Plates, Carbon Steel,Structural Quality, Furnished to Chemical CompositionRequirementsA 941 Terminology Relating to Steel, Stainless Steel, Re-late
13、d Alloys, and FerroalloysA 1011/A 1011M Specification for Steel, Sheet, and Strip,Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy,and High-Strength Low-Alloy with Improved FormabilityA 1018/A 1018M Specification for Steel, Sheet and Strip,Heavy-Thickness Coil, Hot-Rolled, Carbon, Commercial,
14、1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.Current edition approved Sept. 1, 2005. Published October 2005. O
15、riginallyapproved in 1981. Last previous edition approved in 2000 as A 786/A 786M 00b.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary
16、 page onthe ASTM website.1*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.Drawing, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formab
17、ility3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology A 941.4. Surface Pattern4.1 Individual floor plate patterns are unique to each manu-facturer and are not identical in dimension or appearance topatterns manufactured by other manufacturers, a
18、lthough theremay be a close resemblance. Typical patterns are shown in Fig.1. Manufacturers generally produce only one of the patternsshown.4.2 Pattern size, shape, and minimum pattern height are notaddressed in this specification due to the differences in indi-vidual manufacturers patterns and prod
19、uction methods. Wherea need for these attributes exists, purchasers should consult themanufacturer.5. Ordering Information5.1 Information items to be considered, if appropriate, forinclusion in purchase orders are as follows:5.1.1 Quantity (weight mass or number of pieces),5.1.2 ASTM designation and
20、 year of issue,FIG. 1 Floor Plate Patterns (Full Scale)A 786/A 786M 0525.1.3 Chemical composition limits or ASTM material des-ignation and grade (if applicable) and year of issue (if neitherFIG. 1 (continued)FIG. 2 Camber for Raised Figures for Floor Plates (see Table 4 or Table A1.3)A 786/A 786M 05
21、3is specified, the product will be supplied 0.33 % maximumcarbon, by heat analysis, and without specified mechanicalproperties).5.1.4 Dimensions (decimal thickness, width, and either cutlength of plate or coil size and weight mass requirements asapplicable),5.1.5 Condition, if other than as-rolled,5
22、.1.6 Product form (plate, sheet, or coil) and pattern fromFig. 1.As indicated in 4.2, if specific pattern attributes, or somealternative pattern, are desired, the purchaser will need toconsult with the manufacturer,5.1.7 Product analysis (See 9.3),5.1.8 Copper-bearing steel, if required (See 9.4)6.
23、General Requirements6.1 Except as otherwise specified, product furnished underthis specification as plate shall conform to the applicablerequirements of Specification A 6/A 6M.6.2 Except as otherwise specified, product furnished underthis specification as sheet shall conform to the applicablerequire
24、ments of Specification A 568/A 568M.6.3 Except as otherwise specified, product furnished underthis specification as coil shall conform to the applicablerequirements of Specification A 635/A 635M.6.4 In case of any conflict in requirements with this speci-fication and a referenced material specificat
25、ion, the require-ments of this specification shall prevail.7. Material7.1 ASTM specifications that are currently available forfloor plate production include, but are not limited to, thefollowing specifications: A 36/A 36M, A 131/A 131M, A 242/A 242M, A 514/A 514M, A 570/A 570M, A 572/A 572M,A 573/A
26、573M, A 588/A 588M, A 606, A 659/A 659M,A 709/A 709M, A 829/A 829M, A 830/A 830M, A 1011/A 1011M, and A 1018/A 1018M.8. Manufacture8.1 The steel shall be made by any process that conforms tothe requirements of the material specification specified in thepurchase order (see 5.1.3), if any.9. Chemical
27、Composition Limits9.1 Specified to Chemical Composition Limits OnlyTheheat analysis shall conform to the chemical limits specified inthe purchase order.9.2 Specified to an ASTM SpecificationThe heat analysisshall conform to the chemical requirements listed in theapplicable specification.FIG. 3 Cambe
28、r for Rectangular Sheared Floor Plates and Gas-Cut Floor Plates (see Table 5 or Table A1.4)A 786/A 786M 0549.3 Where specified in the purchase order, product analysesshall be performed at the frequency specified in the purchaseorder, and such analyses shall conform to the applicablespecified limits
29、for heat analysis, subject to the permittedvariations in product analysis in Specification A 6/A 6M.9.4 If copper-bearing is specified in the purchase order, thematerial shall contain at least 0.20 % copper, by heat analysis.10. Tensile Properties10.1 The material as represented by the test specimen
30、 shallconform to the requirements for yield point or yield strength,and tensile strength in the ordered specification. The tensiontest shall be conducted on specimens with the raised figurespresent. Thickness is measured at a position between the raisedfigures in an area unaffected by the pattern.10
31、.2 Percent elongation, and reduction of area where appli-cable, are not required for rolled floor plate.11. Permitted Variations11.1 For plates and sheets, the permitted variations indimensions shall be as given in Tables 1-3, Fig. 2, Table 4, Fig.3, Table 5, Fig. 4, and Table 6 Tables A1.1 to A1.6,
32、 inclusive.12. Certification12.1 Test ReportsTest reports shall be furnished as re-quired by SpecificationA 6/A 6M, and shall include theASTMdesignation and year of issue of this specification and theapplicable ASTM material designation.12.2 IdentificationIdentification markings shall indicatethe de
33、signation (year of issue not required) of this specificationand the applicable ASTM material designation.13. Keywords13.1 alloy; carbon; floor plate; flooring; high-strength low-alloy; pattern; raised figures; stairways; steel; structural steel;transportation equipmentTABLE 1 Permitted Variations in
34、 Thickness for Floor PlatesNOTE 1Thickness to be measured at38 to34 in. from the longitudinal edge.NOTE 2For thickness measured at any location other than that specified in Note 1, the permitted variations over specified thickness shall be 134 timesthe amounts in this table, rounded to the nearest 0
35、.010 in. for sheets, and to the nearest 0.01 in. for plates.NOTE 3Where “. . .” appears in this table, there is no requirement.Specified Thickness, in.Permitted Variation Overand Under SpecifiedThickness for Sheets,in.APermitted Variation OverSpecified Thickness forPlates, in.BTo 0.080, incl 0.012 .
36、 . .Over 0.080 to 0.125, incl 0.014 . . .Over 0.125 to 0.190, incl 0.015 0.03Over 0.190 to 0.250, incl 0.017 0.04Over 0.250 to 0.395, incl 0.018 0.05Over 0.395 to 1.000, incl 0.020 0.05AThe specified thickness range captions also apply when rolled floor plate is specified to a minimum thickness, in
37、which case the permitted variations are all over andequal to twice the tabular values.BPermitted variation under specified thickness, 0.01 in.A 786/A 786M 055TABLE 2 Permitted Variations in Width and Length for Floor PlatesPermitted Variations Over Specified Width and Length for Specified Thicknesse
38、s Given in Inches, in.ASpecified Dimension, in. Under 0.375 0.375 to 0.625, excl 0.625 to 1.000, inclWidth Length Width Length Width Length Width LengthTo 96, incl Under 12038127165812 1120 to 240, excl3834127858 1-18240 to 360, excl38 112 1-1858 1-12360 to 480, incl716 1-1412 1-3858 1-58Over 48012
39、1-12916 1-1234 1-34APermitted variations under specified width and length:14 in., for specified thicknesses of 0.188 in. and over; and18 in., for specified thicknesses under 0.188 in.TABLE 3 Permitted Variations from a Flat Surface for Rectangular, Circular, and Sketch Floor PlatesANOTE 1When the lo
40、nger dimension is under 36 in., the permitted variation from a flat surface shall not exceed14 in. When the longer dimensionis from 36 to 72 in., incl, the permitted variation from a flat surface shall not exceed 75 % of the tabular amount for the specified width, but in no caseless than14 in.NOTE 2
41、These permitted variations apply to plates that have a specified minimum tensile strength of not more than 60 ksi or comparable chemicalcomposition or hardness. The limits in this table are increased 50 % for floor plates that have a higher specified minimum tensile strength or comparablechemical co
42、mposition or hardness.NOTE 3This table and these notes cover the permitted variations from a flat surface for circular and sketch floor plates, based upon the maximumdimensions of such plates.NOTE 4Where an ellipsis (.) appears in the table, that product has not been defined.Permitted Variations fro
43、m a Flat Surface for Specified Widths Given in Inches, in.B,CSpecified Thickness, in. To 36, excl 36 to 48, excl 48 to 60, excl 60 to 72, excl 72 to 84, excl 84 to 96, excl 96To 0.100, excl3478 1-116 1-38 . . .0.100 to 0.250, excl916341516 1-14 1-38 1-12 1-580.250 to 0.375, excl1258341516 1-18 1-14
44、1-380.375 to 0.500, excl1291658583478 10.500 to 0.750, excl71612916585834 10.750 to 1.000, excl71612916585858341.0003812129169165858AFor coils, the requirements of either Specification A 568/A 568M or Specification A 635/A635M apply.BPermitted Variation from a Flat Surface Along the LengthThe longer
45、 dimension specified is considered the length, and the permitted variation from a flat surface alongthe length shall not exceed the tabular amount for the specified width for plates up to 4000 mm in length, or in any 4000 mm for longer plates.CPermitted Variation from a Flat Surface Across the Width
46、The permitted variation from a flat surface across the width shall not exceed the tabular amount for thespecified width.TABLE 4 Permitted Raised Figure Camber for Floor Plates(see Fig. 2)Permitted raised figure camberA,in.=38 3 (number of feet of length/5)ARaised figure camber is the curvature of th
47、e raised figures in the length direction, measured over the entire length of the plate.TABLE 5 Permitted Camber for Rectangular Sheared Plates and Gas-Cut Floor Plates (see Fig. 3)Specified Thickness,in.Specified Width,in.Permitted CamberA,in.To 1.000, incl To 96, incl18 3 (number of feet of length)
48、/5ACamber is the horizontal edge curvature in the length, measured over the entire length of the plate in the flat position.A 786/A 786M 056FIG. 4 Description of Pattern RunoutTABLE 6 Permitted Pattern Runout for Raised Figures for Floor Plates Carbon, Low-Alloy, High-Strength Low-Alloy, and Alloy S
49、teel(see Fig. 4)Permitted pattern runoutA= three (3) rows in 10 ftAPattern runout is the degree to which the pattern deviates from parallel to the longitudinal direction of the rolled plate.A 786/A 786M 057SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase order or contract.Standardized supplementary requirements for use at the option of the purchaser are listed inSpecification A 6/A 6M. Those that are considered suit
