ISO5832-1第一部分 Wrought stainless steel 鍛造不銹鋼

ISO5832-1第一部分Wroughtstainlesssteel鍛造不銹鋼1、范圍ScopeISO5832這部分對用鍛造不銹鋼制造的外科植入物指定了相對應(yīng)的特定的測試方法。thispartofiso5832specifiesthecharacteristicsof,andcorrespondingtestmethodsfor,wroughtstainlesssteelforuseinthemanufactureofsurgicalimplants.提供最適宜的兩種類型的不銹鋼化學(xué)基礎(chǔ)成分（見表1）Provisionismadefortwotypesofstainlesssteelbasedonchemicalcomposition（seetable1）NOTE1用使用本標準材料加工的最終產(chǎn)品的試樣的力學(xué)性能不必完全與本標準規(guī)定的指標相同。NOTE22、規(guī)范性引用文件normativereferences下列文件中的條款通過本標準的引用而成為本標準的條款。凡是注日提的引用文件，其隨后的所有的修改修訂版本均不適于本標準，但是，為了鼓勵根據(jù)本標準達成協(xié)議的各方的研究，凡是沒有注明日期的引用文件，其最新版本均適用于本標準。ISO377Steelandsteelproducts-Locationandpreparationofsamplesandtestpiecesformechanicaltesting.ISO4043、化學(xué)成分chemicalcomposition試驗樣本testsamples用于分析的樣品應(yīng)符合ISO377規(guī)定。TheselectionofsamplesforanalysisshallbecarriedoutinaccordancewithISO377.鑄造分析Castanalysis剛的化學(xué)成分應(yīng)符合表1的規(guī)定。Cr含量和Mo含量按照下列公式計算所得（C值）應(yīng)該不小于26。Thecastanalysisofthesteelwhendeterminedinaccordancewithclause6shallcomplywiththechemicalcompositionspecifiedintable1.ThemolybdenumandchromiumcontentsshallbesuchthattheCvalueobtainedfromtheformulagivenbelowisnotlessthan26.C=3.3WMo+WCr其中：WMo鉬的含量，用質(zhì)量百分比表示；WCr鉻的含量，用質(zhì)量百分比表示。表1—化學(xué)成分元糸質(zhì)量百分比%碳0.03三硅1.0W錳2.0w磷0.025w硫0.01w氮0.1w鉻17.0?19.0鉬2.25?3.50鎳13.0?15.0銅0.50w鐵余量4、微觀條件下的完全退火microstructureinthefullyannealedcondition晶粒度grainsize奧氏體的晶粒度按照第六條規(guī)定不得大于5級。theausteniticgrainsize,determinedinaccordancewithclause6,shallnotbecoarserthangrainsizeNo.5.微觀結(jié)構(gòu)microstructure根據(jù)條款6進行檢測時，此不銹鋼應(yīng)不含6鐵素體、X相或者Z相。thesteelshallhaveastructurefreefromdeltaferrite,chiorsigmaphase,whenexaminedinaccordancewithClause6.非金屬夾雜物含量inclusioncontent鋼鐵應(yīng)該檢驗非金屬夾雜物的含量，在熱軋階段完成尺寸定型以后應(yīng)該與第六條的規(guī)定相一致，不得超過表2的規(guī)定。thenon-metallicinclusioncontentofthesteel,determinedatfinishedsizeafterahot-rollingprocessstage,andinaccordancewithClause6,shallnotexceedthelimitsgiveninTable2.注意：有必要符合真空或者電渣冶煉法清潔條件規(guī)定。Note：itcanbenecessarytousevacuumorelectroslagmeltingtoproduceasteelcomplyingwiththesecleanlinessrequirements.表2—夾雜物規(guī)定Table2—inclusioncontentlimitsTypeofinclusion夾雜物類型Inclusioncontentreferencenumber夾雜物級別Thin細系列Thick粗系列A1.51B1.51C1.51D1.515力學(xué)性能Mechanicalproperties試樣testpieces選擇的樣品和拉伸試件應(yīng)該符合ISO377的規(guī)定。theselectionandpreparationofsamplesandtestpiecesfortensileshallbeinaccordancewithISO377.拉伸試驗Tensiletest鋼在棒材、絲材、板材、帶材形式下的拉伸性能實驗應(yīng)該與條款六相一致，必須分別符合表3、5、6的規(guī)定。thetensilepropertiesofthesteelintheformofbars,wires,andsheetandstrip,whentestedinaccordancewithClause6,shallcomplywiththevaluesspecifiedinTables3,5and6respectively.標記長度gaugelengthS0指的是試樣的原始橫截面積單位mm。試樣的直徑d1或者橫截面S0,分別應(yīng)符合，標記長度應(yīng)該為5.65SOor50mm(見表4或表7)。S0isdefinedastheoriginalcross-sectionalareainsquaremillimetres.inaccordancewithtestpiecediameter,D1orsectionprofile,S0,respectively,thegaugelengthshallbeeither5.65Xa/S0or50mm(seetable4andtable7).6實驗方法Testmethods用于確定ISO5832本部分的規(guī)定的測試方法應(yīng)該符合表8所列的要求。thetestmethodstobeusedindeterminingcompliancewiththerequirementsofthispartofISO5832shallbethosegivenintable8.表3—鋼棒的力學(xué)性能Condition狀態(tài)Diameterorthickness直徑或者厚度dmmTensilestrength拉伸強度RmMPa0.2%proofstressofnon-proportionalelongarion0.2%的非比例伸長應(yīng)力Rp0.2minMPaElongarionafterfracture/Gaugelength折斷后的伸長率/標記長度Amin%退火的全部490WRW69019040冷加工W22860W110039012超硬三8W1400表4—標記長度和產(chǎn)品之間的對應(yīng)Table4—CorrespondencebetweengaugelengthandproductProduct產(chǎn)口口Gaugelength標記長度50mm5.65XJS0Roundbar,wires圓鋼，鋼絲d>5mmdW5mmSections,profilesS0>40mm2S0W40mm2截面，輪廓面

Table5—Mechanicalpropertiesofwires表5—鋼絲的力學(xué)性能狀態(tài)直徑dmm抗拉強度RMPam折斷后的伸長率/標記長度Amin%退火0.025WdW0.13W1000300.13<dW0.23W930300.23<dW0.38W890350.38<dW0.5W860400.5<dW0.65W82040d>0.65W80040冷拔0.2WdW0.71600WR一w18500.7<dW1.01500WR一w17501.0<d^1.51400WR一w16501.5<dW2.01350WRW1600冷拉狀態(tài)下訂貨的鋼絲，可按照需方的更高強度等級供貨，力學(xué)性能指標有供需雙方協(xié)商確定。Table6—Mechanicalpropertiesofstripandsheet表6—帶材和板材的力學(xué)性能Condition狀態(tài)Tensilestrength拉伸強度RmMPa0.2%proofstressofnon-proportionalelongarion0.2%的非比例伸長應(yīng)力Rp0.2minMPaElongarionafterfracture/Gaugelength折斷后的伸長率/標記長度Amin%退火的490wrW690m19040冷加工860wrW1100-ffi69010Table7—Correspondencebetweengaugelengthandthicknessoftheproduct表7—標記長度和厚度和產(chǎn)品之間的對應(yīng)Product產(chǎn)口口Gaugelength標記長度50mm5.65XJS0Roundbar,wires/