欢迎来到标准图书馆! | 帮助中心 Day Day UP!
标准图书馆
首页 标准图书馆 > 资源分类 > PDF文档下载

ASTM A144 - 04 (2014).pdf

  • 资源大小:57.94KB        全文页数:2页
  • 资源格式: PDF        下载权限:游客/注册会员/VIP会员    下载费用:20Gold 【人民币20元】
游客快捷下载 游客一键下载
会员登录下载
下载资源需要20Gold 【人民币20元】Paypal charge shall be login

邮箱/手机号:
您支付成功后,系统会自动为您创建此邮箱/手机号的账号,密码跟您输入的邮箱/手机号一致,以方便您下次登录下载和查看订单。注:支付完成后需要自己下载文件,并不会自动发送文件哦!

支付方式: 微信支付    支付宝   
验证码:   换一换

友情提示
2、本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

ASTM A144 - 04 (2014).pdf

Designation A144 − 04 Reapproved 2014Standard Specification forFerrotungsten1This standard is issued under the fixed designation A144; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers four grades of ferrotungsten.2. Referenced Documents2.1 ASTM Standards2A1025 Specification for Ferroalloys and Other AlloyingMaterials, General Requirements3. General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of Specification A1025, including any supple-mentary requirements that are indicated in the purchase order.Failure to comply with the general requirements of Specifica-tion A1025 constitutes nonconformance with this specification.In case of conflict between the requirements of this specifica-tion and Specification A1025, this specification shall prevail.4. Chemical Composition4.1 The material shall conform to the requirements as tochemical composition specified in Tables 1 and 2.4.2 The manufacturer shall furnish an analysis of eachshipment showing the percentage of each element specified inTable 1. The manufacturer shall supply on request the results ofan analysis for the elements in Table 2, on a cumulative basisover a period mutually agreed upon between the manufacturerand the purchaser.5. Size5.1 The various grades are available in the sizes listed inTable 3.6. Keywords6.1 ferroalloy; ferrotungsten1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved Oct. 1, 2014. Published October 2014. Originallyapproved in 1932. Discontinued in 2000 and reinstated in 2002 as A144 - 02. Lastprevious edition approved in 2009 as A144 - 042009. DOI 10.1520/A0144-04R14.2For 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 standard’s Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1ASTM 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 patent 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 either 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 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 standard 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 websitewww.astm.org. Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel 978 646-2600; http//www.copyright.com/TABLE 1 Chemical RequirementsAGradeComposition, max, , Unless Otherwise ShownTungsten Carbon Phosphorus Sulfur Silicon Molybdenum AluminumA 85.0–95.0 0.050 0.010 0.020 0.10 0.20 0.10B 75.0–85.0 0.10 0.020 0.020 0.50 0.35 0.10C 75.0–85.0 0.60 0.060 0.050 1.0 1.0 ...D 75.0–85.0 0.60 0.060 0.050 1.0 3.0 ...AFor purposes of determining the tungsten content of any shipment, tungsten shall be reported to the nearest 0.1 .TABLE 2 Supplementary Chemical RequirementsAManganese Copper Nickel Arsenic Antimony Tin Bismuth Total Arsenic,Antimony, TinTotal ArsenicAntimony, Tin,BismuthA 0.10 0.50 0.05 0.010 0.010 0.010 0.010 ... 0.040B 0.30 0.07 0.05 0.020 0.020 0.020 0.030 ... 0.090C 0.75 0.10 ... 0.10 0.080 0.10 ... 0.20 ...D 0.75 0.10 ... 0.10 0.080 0.10 ... 0.20 ...AAn analysis of each lot is not required.TABLE 3 Size ToleranceSize Tolerance1⁄4 in. 6.3 mm by down 5 max retained on 6.3 mm 1⁄4 in. sieve, 20 max under 70 mesh3⁄8 in. 9.5 mm by down 5 max over 9.5 mm 3⁄8 in. sieve, 20 maxunder 70 meshA144 − 04 20142

注意事项

本文(ASTM A144 - 04 (2014).pdf)为本站会员(admin)主动上传,标准图书馆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,请立即通知标准图书馆(发送邮件至[email protected]或直接QQ联系客服),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服客服 - 联系我们

@copyright 2017-Stdlibrary All Rights Reserved.


收起
展开