ImageVerifierCode 换一换
格式:PDF , 页数:2 ,大小:54.75KB ,
资源ID:462458      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-462458.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 B843-2007 Standard Specification for Magnesium Alloy Anodes for Cathodic Protection《阴极保护用镁合金阳极的标准规范》.pdf)为本站会员(花仙子)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 B843-2007 Standard Specification for Magnesium Alloy Anodes for Cathodic Protection《阴极保护用镁合金阳极的标准规范》.pdf

1、Designation: B 843 07Standard Specification forMagnesium Alloy Anodes for Cathodic Protection1This standard is issued under the fixed designation B 843; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n

2、umber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers magnesium alloy anodes in theform of cast and extruded shapes.2. Referenced Documents2.1 ASTM Standards:2B 95

3、1 Practice for Codification of Unalloyed Magnesiumand Magnesium-Alloys, Cast and WroughtE35 Test Methods for Chemical Analysis of Magnesiumand Magnesium AlloysE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical CompositionE88 Practice for Sampling Nonferrous M

4、etals and Alloysin Cast Form for Determination of Chemical CompositionG97 Test Method for Laboratory Evaluation of MagnesiumSacrificial Anode Test Specimens for Underground Appli-cationsE 527 Practice for Numbering Metals and Alloys (UNS)3. Significance and Use3.1 This specification is prescriptive

5、and not performance innature.4. Ordering Information4.1 Orders for anodes under this specification shall includethe following information:4.1.1 Grade (Section 5 and Table 1),4.1.2 Quantity (number of pieces), and4.1.3 Size, form, and shape as negotiated between purchaserand supplier.5. Chemical Comp

6、osition5.1 LimitsThe material shall conform to the chemicalcomposition requirements prescribed in Table 1.5.2 Sampling:5.2.1 Sufficient samples shall be taken by the manufacturerto ensure conformance to the chemical composition require-ments of the metal. Samples may be taken from the moltenmetal wh

7、en the cast anode or extrusion ingot is poured, or fromthe finished anode. Samples shall be representative of thematerial.5.2.2 In case of dispute, the sample for chemical analysisshall meet the requirements of Practice E55orE88.5.2.3 Method of AnalysisAny suitable method of chemi-cal analysis may b

8、e used. In case of dispute, the analysis shallbe made by methods given in Test Methods E35.6. Property Testing6.1 Sufficient samples may be taken for property testing asnegotiated between purchaser and supplier. Testing will bedone in compliance with Test Method G97.7. General Quality7.1 Magnesium c

9、ast and extruded anodes shall have a cleansurface and be commercially free of dirt, slag, or other foreignmaterial.8. Rejection8.1 Material that does not conform to the requirements ofthis specification may be rejected, and if rejected, the condi-tions of replacement shall be as agreed upon between

10、thepurchaser and the supplier.9. Packaging and Package Marking9.1 The material shall be packaged in such a manner as toprevent damage in ordinary handling and transportation. Thetype of packing and gross weight of the individual containershall be left to the discretion of the supplier, unless otherw

11、iseagreed upon between the purchaser and the supplier. Packingmethods and containers shall be so selected as to permitmaximum utility of mechanical equipment in unloading andsubsequent handling.9.2 Packages or containers shall be such as to ensureacceptance by common or other carriers for safe trans

12、portationat the lowest rate to the point of delivery.1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.04 onMagnesium Alloy Cast and Wrought Products.Current edition approved June 1, 2007. Published July

13、 2007. Originally approvedin 1993. Last previous edition approved in 2003 as B 843 93(2003).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 S

14、ummary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.9.3 Each shipment shall be marked with the purchasersorder number, form, quantity, specification number, gross andnet weights, and the name of the manufac

15、turer.10. Keywords10.1 cathodic protection; magnesium anodesASTM 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 pa

16、tent rights, 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 ei

17、ther for 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

18、 hearing 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 stan

19、dard may 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).TABLE 1 Chemical RequirementsANOTEASTM alloy designations were established in accordance with Practice B 951. UNS designa

20、tions were established in accordance with PracticeE 527.ElementGradeAZ63BBAZ63CBAZ63DBM1C AZ31B AZ31DUNSM11632 M11634 M11636 M15102 M11311 M11313Aluminum 5.36.7 5.36.7 5.07.0 0.01 2.53.5 2.53.5Zinc 2.53.5 2.53.5 2.04.0 . 0.61.4 0.61.4Manganese 0.150.7 0.150.7 0.150.7 0.501.3 0.201.0 0.201.0Silicon 0

21、.10 0.30 0.30 0.05 0.10 0.05Copper 0.02 0.05 0.10 0.02 0.05 0.04Nickel 0.002 0.003 0.003 0.001 0.005 0.0010Iron 0.003 0.003 0.003 0.03 0.005 0.002Calcium . . . . 0.04 0.04Other metallic impurities,each0.05 . 0.01Others, total 0.30 0.30 0.30 0.30 0.30 0.30Magnesium remainder remainder remainder remainder remainder remainderALimits are given as maximum weight percent unless shown as a range.BAlloys AZ63B, AZ63C, and AZ63D are commonly known as H1A, H1B, and H1C, respectively.B843072

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