ImageVerifierCode 换一换
格式:PDF , 页数:11 ,大小:159.11KB ,
资源ID:460081      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-460081.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM A955 A955M-2010 Standard Specification for Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement《混凝土配筋用变形和普通不锈钢钢筋标准规范》.pdf)为本站会员(deputyduring120)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ASTM A955 A955M-2010 Standard Specification for Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement《混凝土配筋用变形和普通不锈钢钢筋标准规范》.pdf

1、Designation: A955/A955M 10Standard Specification forDeformed and Plain Stainless-Steel Bars for ConcreteReinforcement1This standard is issued under the fixed designation A955/A955M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, t

2、he 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 deformed and plain stainless-steel bars for concrete reinforcement in cut length

3、s and coilsused in applications requiring resistance to corrosion or con-trolled magnetic permeability. The standard sizes and dimen-sions of deformed bars and their numerical designation shall bethose listed in Table 1. The text of this specification referencesnotes and footnotes which provide expl

4、anatory material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.1.1 Supplementary requirement (S1) of an optional natureis provided. It shall apply only when specified by the purchaser.In order to obtain a controlled ma

5、gnetic permeability product,steel conforming to Supplementary Requirement S1 should beordered.1.2 The chemical composition of the stainless steel alloyshall be selected for suitability to the application involved byagreement between the manufacturer and the purchaser. This isan important considerati

6、on in achieving the desired corrosionresistance or controlled magnetic permeability, or both, be-cause these properties are not provided by all stainless steels.NOTE 1The alloys shown in Table 2 have found the most use in NorthAmerica. Other alloys may also provide desired properties; consult withth

7、e manufacturer for stainless steel alloy properties and availability.1.3 Bars are of three minimum yield strength levels, namely,40 000 280 MPa, 60 000 420 MPa, and 75 000 psi 520MPa, designated as Grade 40 280, Grade 60 420, andGrade 75 520, respectively.1.4 Plain rounds in sizes up to and includin

8、g 2 in. 50.8 mmin diameter in coils or cut lengths, when ordered, shall befurnished under this specification in Grade 40 280, Grade 60420, and Grade 75 520, respectively. Bending properties,when required, shall be by agreement between the manufac-turer and purchaser. Requirements providing for defor

9、mationsand marking shall not be applicable to plain bars.1.5 Weldability of most stainless steel compositions isgenerally good, however, pre-weld or post-weld procedures, orboth, are necessary. Where material is to be welded, a weldingprocedure suitable for the chemical composition and intendeduse o

10、r service shall be used. Retesting of physical propertiesshould be considered following welding procedures dependingupon the steel composition and welding operation involved.NOTE 2It is recommended that the user consult the manufacturer forinformation available from the Nickel Development Institute

11、(NIDI)(Toronto, Canada).1.6 This specification is applicable for orders in eitherinch-pound units (as Specification A955) or in SI units (asSpecification A955M).1.7 The values stated in either inch-pound or SI units are tobe regarded separately as standard. Within the text, the SI unitsare shown in

12、brackets. The values stated in each system are notexact equivalents; therefore, each system shall be used inde-pendently of the other. Combining values from the two systemsmay result in nonconformance with the standard.1.8 This standard does not purport to address all of thesafety concerns, if any,

13、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. Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for Rol

14、ledStructural Steel Bars, Plates, Shapes, and Sheet PilingA276 Specification for Stainless Steel Bars and ShapesA342/A342M Test Methods for Permeability of FeeblyMagnetic MaterialsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA484/A484M Specification for General Requiremen

15、ts forStainless Steel Bars, Billets, and ForgingsA510 Specification for General Requirements for Wire1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.05 on Steel Reinforcement.Current e

16、dition approved June 15, 2010. Published June 2010. Originallyapproved in 1996. Last previous edition approved in 2009 as A955/A955M 09b.DOI: 10.1520/A0955_A0955M-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual B

17、ook 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 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Rods and Coars

18、e Round Wire, Carbon SteelA510M Specification for General Requirements for WireRods and Coarse Round Wire, Carbon Steel (Metric)A700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for ShipmentA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel Pro

19、ductsC192/C192M Practice for Making and Curing ConcreteTest Specimens in the LaboratoryE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsG15 Terminology Relating to Corrosion and CorrosionTesting32.2 U.S. Military Standard:4MIL-STD-129 Marking for Ship

20、ment and Storage2.3 U.S. Federal Standard:4Fed. Std. No. 123 Marking for Shipment (Civil Agencies)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 deformations, ntransverse protrusions on a de-formed bar.3.1.2 deformed bar, nsteel bar with protrusions; a bar thatis intended for

21、 use as reinforcement in reinforced concreteconstruction.3.1.2.1 DiscussionThe surface of the bar is provided withlugs or protrusions that inhibit longitudinal movement of thebar relative to the concrete surrounding the bar in suchconstruction. The lugs or protrusions conform to the provisionsof thi

22、s specification.3.1.3 plain bar, nsteel bar without protrusions.3.1.4 rib, nlongitudinal protrusion on a deformed bar.3.1.5 stainless steel, na steel that contains 11 % or morechromium.4. Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requirements that are nece

23、ssary for material ordered to thisspecification. Such requirements shall include but are notlimited to the following:4.1.1 Quantity (weight) mass,4.1.2 Name of material (deformed and plain stainless steelbars for concrete reinforcement),4.1.3 Chemical composition (stainless steel alloy),4.1.4 Heat t

24、reatment condition,3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.TABLE 1 Deformed Bar Designation

25、 Numbers, Nominal Weights Masses, Nominal Dimensions, and Deformation RequirementsBarDesignationNo.Nominal Weight, lb/ft NominalMass, kg/mANominal DimensionsBDeformation Requirements, in. mm400 Series;Duplex Alloys300 SeriesDiameter, in.mmCross-SectionalArea, in.2mm2Perimeter, in.mmMaximumAverage Sp

26、acingMinimumAverage HeightMaximum Gap(Chord of 12.5 %of NominalPerimeter)3 10 0.374 0.556 0.378 0.562 0.375 9.5 0.11 71 1.178 29.9 0.262 6.7 0.015 0.38 0.143 3.64 13 0.679 1.011 0.686 1.021 0.500 12.7 0.20 129 1.571 39.9 0.350 8.9 0.020 0.51 0.191 4.95 16 1.048 1.559 1.058 1.575 0.625 15.9 0.31 199

27、1.963 49.9 0.437 11.1 0.028 0.71 0.239 6.16 19 1.495 2.225 1.511 2.248 0.750 19.1 0.44 284 2.356 59.8 0.525 13.3 0.038 0.97 0.286 7.37 22 2.038 3.032 2.059 3.064 0.875 22.2 0.60 367 2.749 69.8 0.612 15.5 0.044 1.12 0.334 8.58 25 2.685 3.995 2.713 4.037 1.000 25.4 0.79 510 3.142 79.8 0.700 17.8 0.050

28、 1.27 0.383 9.79 29 3.396 5.053 3.441 5.106 1.128 28.7 1.00 645 3.544 90.0 0.790 20.1 0.056 1.42 0.431 10.910 32 4.312 6.416 4.358 6.484 1.270 32.3 1.27 819 3.990 101.3 0.889 22.6 0.064 1.63 0.487 12.411 36 5.296 7.880 5.352 7.964 1.410 35.8 1.56 1006 4.430 112.5 0.987 25.1 0.071 1.80 0.540 13.714 4

29、3 7.64 11.37 7.72 11.49 1.693 43.0 2.25 1452 5.32 135.1 1.185 30.1 0.085 2.16 0.648 16.518 57 13.59 20.22 13.72 20.43 2.257 57.3 4.00 2581 7.09 180.1 1.58 40.1 0.102 2.59 0.864 21.9AThe 400 and Duplex-Alloy Series is based on a density of 489.59 lb/ft37833.4 kg/m3. The 300 Series is based on a densi

30、ty of 494.78 lb/ft37916.5 kg/m3. Densityvaries with alloy content which may result in a variation of several percent.BThe nominal dimensions of a deformed bar are equivalent to those of a round bar having the same weight mass per foot metre as the deformed bar.TABLE 2 Chemical Requirements of Typica

31、l AlloysAUNSDesignationComposition %Type Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum NitrogenS24000 XM-29 0.08 11.50-14.500.060 0.030 1.00 17.00-19.002.25-3.750.20-0.40S24100 XM-28 0.15 11.00-14.000.060 0.030 1.00 16.50-19.000.50-2.500.20-0.45S30400 304 0.08 2.00 0.045 0.03

32、0 1.00 18.00-20.008.00-10.500.10S31603 316L 0.03 2.00 0.045 0.030 1.00 16.00-18.0010.00-14.002.00-3.00 0.10S31653 316LN 0.03 max 2.00 0.045 0.030 1.00 16.00-18.0010.00-14.002.00-3.00 0.10-0.16S31803 0.03 2.00 0.030 0.020 1.00 21.00-23.004.50-6.502.50-3.50 0.08-0.20AMaximum, unless otherwise indicate

33、d.A955/A955M 1024.1.5 Size,4.1.6 Cut lengths or coils,4.1.7 Deformed or plain,4.1.8 Grade (strength level),4.1.9 Descaling method and finish,4.1.10 Packaging (see Section 24),4.1.11 Supplementary requirement (if desired), and4.1.12 ASTM designation and year of issue.5. Materials and Manufacture5.1 T

34、he bars shall be rolled from properly identified heats ofmold or strand cast steel.5.2 Bars shall be furnished in one of the following heattreatment conditions, as shown in Specification A276, and asneeded to meet the requirements of this specification.5.2.1 Annealed (A).5.2.2 Hot rolled (HR).5.2.3

35、Strain hardened (B).NOTE 3The mechanical properties of the material result from the heattreat condition of the material. Any further heat treatment of the materialmay alter those properties and affect their ability to meet the specifiedstrength level. No re-treatment should be imposed without retest

36、ing to therequirements of this specification.6. Chemical Composition6.1 The chemical analysis of each heat of steel shall bedetermined in accordance with Test Methods, Practices, andTerminology A751. The manufacturer shall make the analysison test samples taken preferably during the pouring of the h

37、eat.Such analysis shall meet the chemical composition require-ments specified in Table 2 by the purchaser.6.2 When specified by the purchaser, an analysis of theproduct shall be made by the manufacturer and shall conformto the analysis tolerances specified in Table 1 of SpecificationA484/A484M.6.3 A

38、n analysis made by the purchaser from the finishedproduct shall meet the specification tolerances of SpecificationA484/A484M.7. Requirements for Deformations7.1 Deformations shall be spaced along the bar at substan-tially uniform distances. The deformations on opposite sides ofthe bar shall be simil

39、ar in size, shape, and pattern.7.2 The deformations shall be placed with respect to the axisof the bar so that the included angle is not less than 45. Wherethe line of deformations forms an included angle with the axisof the bar of from 45 to 70 inclusive, the deformations shallalternately reverse i

40、n direction on each side or those on oneside shall be reversed in direction from those on the oppositeside. Where the line of deformation is over 70, a reversal indirection is not required.7.3 The average spacing or distance between deformationson each side of the bar shall not exceed seven tenths o

41、f thenominal diameter of the bar.7.4 The overall length of deformations shall be such that thegap (measured as a chord) between the ends of the deforma-tions shall not exceed 1212 % of the nominal perimeter of thebar. Where the ends terminate in a rib, the width of the rib shallbe considered as the

42、gap between these ends. The summationof the gaps shall not exceed 25 % of the nominal perimeter ofthe bar. Furthermore, the summation of gaps shall not exceed25 % of the nominal perimeter of the bar. The nominalperimeter of the bar shall be 3.1416 times the nominaldiameter.7.5 The spacing, height, a

43、nd gap of deformations shallconform to the requirements prescribed in Table 1.8. Measurement of Deformations8.1 The average spacing of deformations shall be deter-mined by measuring the length of a minimum of ten spaces anddividing that length by the number of spaces included in themeasurement. The

44、measurement shall begin from a point on adeformation at the beginning of the first space to a correspond-ing point on a deformation after the last included space.Spacing measurements shall not be made over a bar areacontaining bar marking symbols.8.2 The average height of deformations shall be deter

45、minedfrom measurements made on not less than two typical defor-mations. Determinations shall be based on three measurementsper deformation, one at the center of the overall length and theother two at the quarter points of the overall length.8.3 Insufficient height, insufficient circumferential cover

46、-age, or excessive spacing of deformations shall not constitutecause for rejection unless it has been clearly established bydeterminations on each lot (Note 4) tested that typical defor-mation height, gap, or spacing does not conform to theminimum requirements prescribed in Section 7. No rejectionsh

47、all be made on the basis of measurements if fewer than tenadjacent deformations on each side of the bar are measured.NOTE 4A lot, for this purpose, is defined as all the bars of one barnumber and pattern of deformation contained in an individual shippingrelease or shipping order.9. Tensile Requireme

48、nts9.1 The material, as represented by the test specimens, shallconform to the requirements for tensile properties prescribed inTable 3 or by agreement between the manufacturer and thepurchaser.9.2 The yield strength shall be determined by the offsetmethod (0.2 % offset), as described in Test Method

49、s andDefinitions A370. A second tensile test result shall also berequired. In addition, the stress corresponding to a tensile strainof 0.0035 shall be a minimum of 60 000 psi 420 MPa forGrade 60 420 and a minimum of 75 000 psi 520 MPa forTABLE 3 Tensile RequirementsNOTE 1Check with producer for availability of grades and size

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1