1、Designation: B 370 09Standard Specification forCopper Sheet and Strip for Building Construction1This standard is issued under the fixed designation B 370; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 specification establishes the requirements for
3、rolledcopper sheet and strip in flat lengths or coils in ounce-weightthicknesses for roofing, flashing, gutters, downspouts, andgeneral sheet metal work in building construction.1.1.1 Products produced to this specification are not in-tended for electrical applications.1.2 UnitsThe values stated in
4、inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.NOTE 1Specification B 101 is an associated specification for lead-coated copper sheets and strip for building
5、construction.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.
6、 Referenced Documents2.1 ASTM Standards:2B 101 Specification for Lead-Coated Copper Sheet andStrip for Building ConstructionB 248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBarB 601 Classification for Temper Designations for Copperand Cop
7、per AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysE3 Guide for Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE112 Test Methods for Determining Average Grain SizeE 255 Practice for Sampling Copper and Copper Alloys forthe Determi
8、nation of Chemical CompositionE 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B 248 constitutea part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Spec
9、imen Preparation,3.1.5 Test Methods,3.1.6 Significance of Numerical Limits,3.1.7 Inspection,3.1.8 Certification,3.1.9 Mill Test Report,3.1.10 Packaging and Package Marking, and3.1.11 Supplementary Requirements.3.2 In addition, when a section with a title identical to thatreferenced in 3.1, above, ap
10、pears in this specification, itcontains additional requirements, which supplement thoseappearing in Specification B 248.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand CopperAlloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Curre
11、nt edition approved April 1, 2009. Published May 2009. Originallyapproved in 1961. Last previous edition approved in 2003 as B 370 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume info
12、rmation, refer to the standards Document Summary 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.4. Terminology4.1 DefinitionsFor definitions o
13、f terms related to copperand copper alloys, refer to Terminology B 846.4.1.1 coil, na length of the product wound into a series ofconnected turns.4.1.1.1 DiscussionThe unqualified term “coil” as appliedto “flat product” usually refers to a coil in which the product isspirally wound, with the success
14、ive layers on top of oneanother (sometimes called a “roll”).4.1.2 lengths, mill, nstraight lengths, including ends, thatare be manufactured conveniently in the mills.4.1.2.1 DiscussionFull length pieces usually are 8 or 10 ft(2.4 or 3.0 m) and subject to established length tolerances.4.1.3 length, s
15、tock, nstraight lengths that are mill cut andstored in advance of orders.4.1.3.1 DiscussionThey usually are 8 or 10 ft (2.4 or 3.0m) and subject to established length tolerances.4.1.4 sheet, for building construction, na rolled flat prod-uct over 24 in. (610 mm) in width and of ounce-weightthickness
16、 from 8 to 48 oz.4.1.5 strip, for building construction, na rolled flat prod-uct up to 24 in. (610 mm), inclusive, in width and ofounce-weight thickness from 8 to 48 oz.4.1.6 ounce-weight, nthe weight of copper sheet or stripexpressed in ounces per square foot.NOTE 2In 4.1.4 and 4.1.5, the 8 to 48 o
17、z refers to the namescommonly used in the building industry for the sizes used. The respectivesizes that correspond to these names are listed in Table 1.5. Ordering Information5.1 Include the following information when placing ordersfor product under this specification, as applicable:5.1.1 ASTM desi
18、gnation and year of issue (for example,B 370XX),5.1.2 Temper (Section 8),5.1.3 Dimensions: tolerances (Section 12),5.1.4 How furnished: flat lengths or coils (4.1.1-4.1.3),5.1.5 Quantity: total weight or number of pieces of eachform and size, and5.1.6 When product is purchased for agencies of the U.
19、S.Government (Section 11).5.2 The following are options available under this specifi-cation and should be specified in the contract or purchase orderwhen required:5.2.1 Heat identification or traceability details,5.2.2 Certification, and5.2.3 Mill test report.6. Materials and Manufacture6.1 Material
20、sThe material shall be any copper conform-ing with the chemical composition requirements (Section 7).6.2 Manufacture:6.2.1 SheetThe product shall be manufactured in flatsheets.6.2.2 StripThe product shall be manufactured in flatlengths or in coils (rolls) of one single continuous length notless than
21、 25 ft (7.5 m) wound into a cylindrical spiral.7. Chemical Composition7.1 The material shall be any copper with a minimumcopper content, including silver, of 99.5 %.7.1.1 Limits shall be established and analysis required forunnamed elements by agreement between the manufacturerand the purchaser.8. T
22、emper8.1 The standard tempers for products described in thisspecification are given in Table 2.8.2 Cold Rolled tempers as defined in Classification B 601:H00 (cold-rolled), H01 (cold-rolled, high yield), H02 (halfhard), H03 (three-quarter hard), and H04 (hard).8.3 Annealed temper as defined in Class
23、ification B 601:O60 (soft)NOTE 3The purchaser should confer with the manufacturer or sup-plier concerning the availability of a specific temper and form.NOTE 4H00 temper is commonly known in the building industry ascold-rolled temper.NOTE 5H01 temper is commonly known in the building industry ascold
24、-rolled, high yield temper.9. Physical Property Requirements9.1 Grain SizeAlthough no grain size has been estab-lished for temper O60, the product shall be recrystallized fullyas determined by Test Method E112.10. Mechanical Property Requirements10.1 Tensile and Yield Strength Requirements:10.1.1 Th
25、e product shall conform to the requirements speci-fied in Table 2 for the specific temper when subjected to test inaccordance with Test Methods E8.10.1.2 Acceptance or rejection for mechanical propertiesshall be based upon the results of the tensile and yield strengthtests.10.2 Rockwell Hardness Req
26、uirementThe approximateRockwell values given in Table 2 are for general informationand assistance in testing and shall not be a basis for productrejection.NOTE 6The Rockwell hardness test offers a quick and convenientmethod of checking for general conformity to the specification require-ments for te
27、mper and tensile strength.11. Purchases for U.S. Government Agencies11.1 When identified in the contract or purchase order,product purchased for agencies of the U.S. Government shallTABLE 1 Thickness Tolerances of Sheet and StripOunce-Weight/ft2TheoreticalThickness,Ain.(mm)Tolerances, Plusand Minusi
28、n. (mm)6 0.0081 (0.206) .001(.026)8 0.0108 (0.274) .0011(.028)10 0.0135 (0.343) .0011(.028)12 0.0162 (0.411) .0012(.030)16 0.0216 (0.549) .0012(.031)20 0.0270 (0.686) .0012(.031)24 0.0323 (0.820) .0015(.038)32 0.0431 (1.09) .002(.05)48 0.0646 (1.64) .0025(.06)ABased on a density of 0.322 lb/in.3(8.9
29、1 g/cm3).B370092conform to the special government requirements stipulated inthe Supplemental Requirements.12. Dimensions, Mass, and Permissible Variations12.1 The product shall conform to the following require-ments:12.1.1 Thickness:12.1.1.1 Tolerances of Sheet and StripThe standardmethod for specif
30、ying thickness shall be by ounce-weight. Thetheoretical thickness for standard ounce-weights and the mini-mum and maximum thickness, measured at any point, shall beas specified in Table 1.12.1.2 Weight:12.1.2.1 Weight tolerances shall be as specified in Table 1.12.1.3 Width:12.1.3.1 Tolerances for S
31、lit MetalTable 3.12.1.3.2 Tolerance for Square-Sheared MetalTable 4.12.1.4 Length.12.1.4.1 Tolerances for Specific and StockTable 5.12.1.4.2 Tolerances for Square-Sheared MetalTable 6.12.1.5 Straightness.12.1.5.1 Tolerances or Slit MetalTable 7.12.1.5.2 Tolerances for Square-Sheared MetalTable 8.13.
32、 Sampling13.1 SamplingThe lot size, portion size, and selection ofsample pieces shall be as follows.13.1.1 Lot SizeAn inspection lot shall be 10 000 lb (4540kg) or less of product of the same mill form, alloy, temper, andnominal dimensions, subject to inspection at one time, or shallbe the product o
33、f one cast bar from a single melt charge whoseweight shall not exceed 25 000 lb (11 340 kg) that has beenprocessed continuously and subject to inspection at one time.13.1.2 Portion SizeAportion shall be four or more piecesselected as to be representative of the lot. When the lot consistof less than
34、four pieces, representative samples shall be takenfrom each piece.13.2 Chemical Analysis:13.2.1 The sample for chemical analysis shall be taken fromthe pieces selected and combined into one composite sample inaccordance with Practice E 255 for product in its final form.The minimum weight of the comp
35、osite sample shall be 150 g.13.2.2 Instead of sampling in accordance with PracticeE 255, the manufacturer shall have the option of takingsamples at the time the castings are poured or by takingsamples from the semifinished product.13.2.2.1 When composition of the material has been deter-mined during
36、 the course of manufacture, sampling of thefinished product by the manufacturer is not required.TABLE 2 Mechanical PropertiesTemper Designation Tensile Strength, ksiA(MPa)Yield Strength, at0.5 % Extension UnderLoad, min ksiA(MPa)Approximate Rockwell HardnessB(ForInformation Only)ScaleStandard Former
37、 Min Max F Superficial 30 TO60 soft 30 (205) 38 (260) . . . up to 65 up to 31H00 cold-rolled 32 (220) 40 (275) 20 (135) 5482 1549H01 cold-rolled, high yield 34 (235) 42 (290) 28 (190) 6084 1851H02 half hard 37 (255) 46 (315) 30 (205) 7789 4357H03 three-quarter hard 41 (285) 50 (345) 32 (220) 8291 47
38、59H04 hard 43 (295) 52 (360) 35 (240) 8693 5462Aksi = 1000 psi.BRockwell hardness values apply as follows: The F scale applies to metal 0.020 in. (0.508 mm) and over in thickness; the superficial 30T scale applies to metal 0.012in. (0.305 mm) to 0.020 in. (0.508 mm) in thickness.TABLE 3 Width Tolera
39、nces for Slit MetalWidth, in. (mm)Width Tolerances, Plus andMinus, in. (mm)Up to 24 (610), incl164 (0.40)Over 24 to 48 (610 to 1219), incl364 (1.2)TABLE 4 Width Tolerances for Square-Sheared MetalWidth, in. (mm)Width Tolerances, Plus andMinus, in. (mm)Up to 24 (610), incl132 (0.79)Over 24 to 36 (610
40、 to 914), incl364 (1.2)Over 36 (914)116 (1.6)TABLE 5 Length Tolerances for Specific and Stock LengthsLength, in. (m)Length Tolerance (Applicable Only toFull-Length Pieces), in. (mm)Specific lengths 120 (3) and under14 (6.4) (all plus)TABLE 6 Length Tolerances for Square-Sheared MetalLength, in. (m)L
41、ength Tolerance Plus and Minus,in. (mm)Over 36 to 120 (0.9 to 3), incl116 (2)TABLE 7 Straightness Tolerances for Slit MetalNOTE 1Maximum edgewise curvature (depth of arc) in any 72-in.(1.83-m) portion of the total length.Width, in. (mm) Straightness Tolerance, in. (mm)Over 4 to 24 (102 to 610), incl
42、12 (13)TABLE 8 Straightness Tolerances for Square-Sheared MetalNOTE 1Maximum edgewise curvature (depth of arc) in any 72-in.(1.83-m) portion of the total length (not applicable to metal over 120 in.(3.05 m) in length.Straightness Tolerances, in. (mm)Up to 10 in. (254 mm.) Incl,in WidthOver 10 in. (2
43、54 mm)in WidthAll thicknesses116 (1.6)132 (0.79)B37009313.2.3 The number of samples to be taken for determinationof chemical composition shall be as follows.13.2.3.1 When sampled at the time the castings are poured,at least one sample shall be taken for each group of castingspoured from the same sou
44、rce of molten metal.13.2.3.2 When sampled from the semifinished product, atleast one sample shall be taken to represent each 10 000 lb, orfraction thereof, except that not more than one sample shall berequired per piece.13.2.3.3 Only one sample need be taken from the semifin-ished product of one cas
45、t bar from a single furnace melt chargecontinuously processed.13.3 Samples for All Other Tests:13.3.1 Samples for all other tests shall be taken from thesample portions of 13.1.2 and be of a convenient size toaccommodate the test and comply with the requirements of thisspecification.14. Number of Te
46、st and Retests14.1 Tests:14.1.1 Chemical AnalysisComposition shall be deter-mined as the mean of results from at least two replicateanalyses of the sample and the results of each replication shallmeet the requirements of this specification.14.1.2 Mechanical Properties TestsTensile strength fortemper
47、 O60 and tensile strength and yield strength for all othertempers shall be reported as the results obtained from speci-mens prepared from a sample piece and the results must meetthe requirements of this specification.14.2 Retests:14.2.1 When requested by the manufacturer or supplier, aretest shall b
48、e permitted when test results obtained by thepurchaser fail to conform with specification requirements.14.2.2 Retesting shall be as directed in this specification forthe initial test(s) except that the number of test specimens shallbe twice that required for the initial test.14.2.3 Test results for
49、all specimens shall conform to therequirements of this specification in retest and failure toconform shall be cause for lot rejection.15. Specimen Preparation15.1 Chemical Analysis15.1.1 Preparation of the analytical specimen shall be theresponsibility of the reporting laboratory.15.2 Grain RecrystalizationThe test specimen shall beprepared in accordance with Practice E3.15.3 Mechanical Properties Tests:15.3.1 The test specimen shall conform to the requirementsprescribed for the specific product described in the TestSpecimen
