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 A209 - A 209M - 03 (2012).pdf

  • 资源大小:64.63KB        全文页数:4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 A209 - A 209M - 03 (2012).pdf

Designation A209/A209M − 03 Reapproved 2012Standard Specification forSeamless Carbon-Molybdenum Alloy-Steel Boiler andSuperheater Tubes1This standard is issued under the fixed designation A209/A209M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the 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. Scope1.1 This specification2covers several grades of minimum-wall-thickness, seamless, carbon-molybdenum alloy-steel,boiler and superheater tubes.1.2 This specification covers tubes1⁄2 to 5 in. [12.7 to 127mm] inclusive, in outside diameter and 0.035 to 0.500 in. [0.9to 12.7 mm], inclusive, in minimum wall thickness.1.3 An optional supplementary requirement is provided and,when desired, shall be so stated in the order.1.4 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system mustbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the specifi-cation. The inch-pound units shall apply unless the “M”designation of this specification is specified in the order.2. Referenced Documents2.1 ASTM Standards3A1016/A1016M Specification for General Requirements forFerritic Alloy Steel, Austenitic Alloy Steel, and StainlessSteel Tubes3. General Requirements3.1 Product furnished under this specification shall conformto the requirements of Specification A1016/A1016M, includ-ing any supplementary requirements that are indicated in thepurchase order. Failure to comply with the general require-ments of Specification A1016/A1016M constitutes nonconfor-mance with this specification. In case of conflict with therequirements of this specification and Specification A1016/A1016M, this specification shall prevail.4. Materials and Manufacture4.1 Steelmaking PracticeThe steel shall be killed.4.2 The tubes shall be made by the seamless process andshall be either hot-finished or cold-finished, as specified.4.3 Heat TreatmentHot-finished tubes shall be heat treatedat a temperature of 1200 F [650 C] or higher. Cold-finishedtubes shall, after the final cold finishing, be heat treated at atemperature of 1200 F [650 C] or higher, or tubing may befurnished in the full-annealed, isothermal annealed, or normal-ized and tempered condition. If furnished in the normalizedand tempered condition, the minimum tempering temperatureshall be 1200 F [650 C].5. Chemical Composition5.1 The steel shall conform to the requirements given inTable 1.5.2 Product Analysis5.2.1 An analysis shall be made by the manufacturer of onebillet or one tube from each heat. The chemical compositionthus determined, shall conform to the requirements given inTable 1.5.2.2 If the original test for product analysis fails, retests oftwo additional billets or tubes shall be made. Both retests forthe elements in question shall meet the requirements of thespecification; otherwise all remaining material in the heat or lotSee 7.1 shall be rejected or, at the option of the producer, eachbillet or tube may be individually tested for acceptance. Billetsor tubes that do not meet the requirements of the specificationshall be rejected.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved March 1, 2012. Published November 2012. Originallyapproved in 1938. Last previous edition approved in 2007 as A209/A209M – 032007. DOI 10.1520/A0209_A0209M-03R12.2For ASME Boiler and Pressure Vessel Code application see related Specifica-tion SA-209 in Section II of that Code.3For 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 States1Copyright by ASTM Intl all rights reserved;6. Mechanical Properties6.1 Tensile Requirements6.1.1 The material shall conform to the requirements givenin Table 2.6.1.2 Table 3 gives the computed minimum elongationvalues for each1⁄32-in. [0.8-mm] decrease in wall thickness.Where the wall thickness lies between two values shownabove, the minimum elongation value shall be determined bythe following equationE 5 48t115.00 E 5 1.87t115.00 1whereE elongation in 2 in. [50 mm], , and,t actual thickness of specimen, in. [mm].6.2 Hardness RequirementsThe tubes shall have a hard-ness not exceeding the values given in Table 4.6.3 Number of Tests6.3.1 Tension TestOne tension test shall be made on aspecimen for lots of not more than 50 tubes. Tension tests shallbe made on specimens from two tubes for lots of more than 50tubes See 7.26.3.2 Flattening TestOne flattening test shall be made onspecimens from each end of one finished tube, not the one usedfor the flaring test, from each lot See 7.16.3.3 Flaring TestOne flaring test shall be made onspecimens from each end of one finished tube, not the one usedfor the flattening test, from each lot See 7.16.3.4 Hardness TestBrinell or Rockwell hardness testsshall be made on specimens from two tubes from each lot See7.27. Sampling7.1 Flattening, Flaring, and Product AnalysisForflattening, flaring, and product analysis requirements, the termlot applies to all tubes prior to cutting of the same nominal sizeand wall thickness that are produced from the same heat ofsteel. When final heat treatment is in a batch-type furnace, a lotshall include only those tubes of the same size and from thesame heat that are heat treated in the same furnace charge.When the final heat treatment is in a continuous furnace, thenumber of tubes of the same size and from the same heat in alot shall be determined from the size of the tubes given in Table5.7.2 Tension and Hardness TestsFor tension and hardnesstests, the term lot applies to all tubes prior to cutting, of thesame nominal diameter and wall thickness that are producedfrom the same heat of steel. When final heat treatment is in abatch-type furnace, a lot shall include only those tubes of thesame size and the same heat that are heat treated in the samefurnace charge. When the final heat treatment is in a continuousfurnace, a lot shall include all tubes of the same size and heat,heat treated in the same furnace at the same temperature, timeat heat, and furnace speed.TABLE 1 Chemical Composition RequirementsElement Composition, Grade T1 Grade T1a Grade T1bCarbon 0.10–0.20 0.15–0.25 0.14 maxManganese 0.30–0.80 0.30–0.80 0.30–0.80Phosphorus, max 0.025 0.025 0.025Sulfur, max 0.025 0.025 0.025Silicon 0.10–0.50 0.10–0.50 0.10–0.50Molybdenum 0.44–0.65 0.44–0.65 0.44–0.65TABLE 2 Tensile RequirementsGradeT1GradeT1bGradeT1aTensile strength, min, ksi [MPa] 55 [380] 53 [365] 60 [415]Yield strength, min, ksi [MPa] 30 [205] 28 [195] 32 [220]Elongation in 2 in. or 50 mm, min, 30 30 30For longitudinal strip tests a deductionshall be made for each1⁄32-in.[0.8- mm] decrease in wall thicknessbelow5⁄16 in. [8 mm] from thebasic minimum elongation of thefollowing percentage1.50A1.50A1.50AWhen standard round 2-in. or 50-mmgage length or smaller proportion-ally sized specimen with the gagelength equal to 4D four times thediameter is used22 22 22ATable 3 gives the computed minimum values.TABLE 3 Computed Minimum ValuesWall Thickness Elongation in 2 in. or 50mm, min, Ain. mm5⁄16 0.312 8 309⁄32 0.281 7.2 291⁄4 0.250 6.4 277⁄32 0.219 5.6 263⁄16 0.188 4.8 245⁄32 0.156 4 221⁄8 0.125 3.2 213⁄32 0.094 2.4 201⁄16 0.062 1.6 18ACalculated elongation requirements shall be rounded to the nearest wholenumber.TABLE 4 Hardness RequirementsBrinell HardnessNumber Tubes 0.200in. [5.1 mm] and over inWall Thickness, HBWRockwell HardnessNumber Tubes less than0.200 in. [5.1 mm] inWall Thickness, HRBGrade T 1 146 80Grade T 1a 153 81Grade T 1b 137 77TABLE 5 Number of Tubes in a Lot Heat Treated by theContinuous ProcessSize of Tube Size of Lot2 in. [50.8 mm] and over in outside diameter and0.200 in. [5.1 mm] and over in wall thicknessnot more than 50 tubes2 in. [50.8 mm] and over in outside diameter andunder 0.200 in. [5.1 mm] in wall thicknessnot more than 75 tubesLess than 2 in. [50.8 mm] but over 1 in. [25.4 mm]in outside diameternot more than 75 tubes1 in. [25.4 mm] or less in outside diameter not more than 125 tubesA209/A209M − 03 20122Copyright by ASTM Intl all rights reserved;8. Forming Operations8.1 Tubes when inserted in the boiler shall stand expandingand beading without showing cracks or flaws. Superheatertubes when properly manipulated shall stand all forging,welding, and bending operations necessary for applicationwithout developing defects.9. Product Marking9.1 In addition to the marking prescribed in SpecificationA1016/A1016M, the marking shall include whether the tube ishot-finished or cold-finished.10. Keywords10.1 boiler tubes; carbon-molybdenum; seamless steeltube; steel tube; superheater tubesSUPPLEMENTARY REQUIREMENTSThe following supplementary requirement shall apply only when specified by the purchaser in theinquiry, contract, or order.S1. Surface ConditionS1.1 If pickling or shot blasting, or both, are required, thisshall be specifically stated in the order. Details of this supple-mental requirement shall be agreed upon between the manu-facturer and the purchaser.ASTM 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 ASTM website www.astm.org/COPYRIGHT/.A209/A209M − 03 20123Copyright by ASTM Intl all rights reserved;

注意事项

本文(ASTM A209 - A 209M - 03 (2012).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