1、Designation: B 370 03Standard 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 (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 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 Co
7、pper AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysE 3 Practice for Preparation of Metallographic SpecimensE 8 Test Methods for Tension Testing of Metallic MaterialsE 53 Test Methods for Determination of Copper in Unal-loyed Copper by GravimetryE 112 Test Methods for Determinin
8、g Average Grain SizeE 255 Practice for Sampling Copper and Copper Alloys forDetermination 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
9、.1.2 Materials and Manufacture,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Specimen 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
10、addition, when a section with a title identical to thatreferenced in 3.1, above, appears in this specification, itcontains additional requirements, which supplement thoseappearing in Specification B 248.4. Terminology4.1 DefinitionsFor definitions of terms related to copperand copper alloys, refer t
11、o 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 successive layers on top of oneanother (sometimes called a
12、 “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.1This specification is under the jurisdiction of ASTM Committee B0
13、5 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Current edition approved Oct. 1, 2003. Published November 2003. Originallyapproved in 1961. Last previous edition approved in 1998 as B 370 98.2For referenced ASTM standards, visit the ASTM
14、 website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, 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 H
15、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.3 length, stock, 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 constru
16、ction, na rolled flat prod-uct over 24 in. (610 mm) in width and of ounce-weightthickness 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
17、sheet or stripexpressed in ounces per square foot.NOTE 2In 4.1.4 and 4.1.5, the 8 to 48 oz 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 Contracts or purchase orders fo
18、r products suppliedunder this specification should include the following informa-tion:5.1.1 ASTM designation 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 weigh
19、t or number of pieces of eachform and size, and5.1.6 When product is purchased for agencies of the U.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 traceab
20、ility details,5.2.2 Certification, and5.2.3 Mill test report.6. Materials and Manufacture6.1 MaterialsThe 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
21、shall be manufactured in flatlengths or in coils (rolls) of one single continuous length notless than 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
22、and analysis required forunnamed elements by agreement between the manufacturerand the purchaser.8. Temper8.1 Copper sheet and strip produced to this specification isavailable in the following tempers as defined in ClassificationB 601: O60 (soft), H00 (cold-rolled), H01 (cold-rolled, highyield), H02
23、 (half hard), H03 (three-quarter hard), and H04(hard).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
24、the building industry ascold-rolled, high yield temper.9. Physical Properties9.1 Grain SizeAlthough no grain size has been estab-lished for temper O60, the product shall be recrystallized fullyas determined by Test Method E 112.10. Mechanical Property Requirements10.1 Tensile and Yield Strength Requ
25、irements:10.1.1 The product shall conform to the requirements speci-fied in Table 2 for the specific temper when subjected to test inaccordance with Test Methods E 8.10.1.2 Acceptance or rejection for mechanical propertiesshall be based upon the results of the tensile and yield strengthtests.10.2 Ro
26、ckwell HardnessThe approximate Rockwell val-ues are given in Table 2 for general information and assistancein testing and shall not be a basis for rejection.10.2.1NOTE 6The Rockwell hardness test offers a quick and convenientmethod of checking for general conformity to the specification require-ment
27、s for temper 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 shallconform to the special government requirements stipulated inthe Supplemental Requirements.12. Dimensions, Mass
28、, 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 specifying thickness shall be by ounce-weight. Thetheoretical thickness for standard ounce-weights and the mini-mum thickness, measu
29、red at any point, shall be as specified inTable 1.TABLE 1 Thickness and Weight Tolerances of Sheet and StripOunce-Weight/ft2TheoreticalThickness,Ain.(mm)Minimum Thicknessat Any Point, in.(mm)Lot-WeightTolerances, Plusand Minus %B6 0.0081 (0.206) 0.0071 (0.180) 108 0.0108 (0.274) 0.0097 (0.246) 810 0
30、.0135 (0.343) 0.0124 (0.315) 612 0.0162 (0.411) 0.0150 (0.381) 516 0.0216 (0.549) 0.0204 (0.518) 420 0.0270 (0.686) 0.0258 (0.655) 3.524 0.0323 (0.820) 0.0308 (0.782) 3.532 0.0431 (1.09) 0.0411 (1.04) 348 0.0646 (1.64) 0.0621 (1.58) 2ABased on a density of 0.322 lb/in.3(8.91 g/cm3).BLot-weight toler
31、ances are the permissible deviation from the theoretical weightof the number of sheets comprising a case or crate (normally approximately 1000lb or 450 kg).B37003212.1.2 Weight:12.1.2.1 Weight tolerances shall be as specified in Table 1.12.1.3 Width:12.1.3.1 Tolerances for Slit MetalTable 3.12.1.3.2
32、 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. Sampling13.1 SamplingThe
33、 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 of one cast bar from a sin
34、gle 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 Size A portion shall be four or more piecesselected as to be representative of the lot. When the lot consistof less than four pieces, representa
35、tive 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 composite sample shall be 1
36、50 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 the course of manufact
37、ure, sampling of thefinished product by the manufacturer is not required.13.2.3 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
38、 from the same source 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
39、product of one cast bar from a single furnace melt chargecontinuously processed.13.3 Samples for All Other Tests:TABLE 2 Mechanical PropertiesTemper Designation Tensile Strength, ksiA(MPa)Yield Strength, at0.5 % Extension UnderLoad, min ksiA(MPa)Approximate Rockwell HardnessB(ForInformation Only)Sca
40、leStandard Former 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)
41、 32 (220) 8291 4759H04 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.TAB
42、LE 3 Width Tolerances for Slit MetalWidth, in. (mm)Width Tolerances, Plus andMinus, in. (mm)Up to 24 (610), incl164 (0.40)Over 24 to 36 (610 to 914), 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)Ov
43、er 24 to 36 (610 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 Metal
44、Length, in. (m)Length 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 (1
45、02 to 610), incl12 (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 Wid
46、thOver 10 in. (254 mm)in WidthAll thicknesses116 (1.6)132 (0.79)B37003313.3.1 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 Test and Retests14.1 Tests
47、: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 O60 and tensile strengt
48、h 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 be permitted when test re
49、sults 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 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
