固定式壓力容器安全防護(hù)規(guī)則技術(shù)監(jiān)察流程相關(guān)方案

固定式壓力容器安全防范規(guī)則的技術(shù)監(jiān)察流程相關(guān)方案固定式壓力容器安全防范規(guī)則的技術(shù)監(jiān)察流程相關(guān)方案PAGE2精選文檔固定式壓力容器安全防范規(guī)則的技術(shù)監(jiān)察流程相關(guān)方案附件1相關(guān)技術(shù)舉措1鋼板1.1碳素鋼和低合金鋼鋼板1.1.1鋼板的標(biāo)準(zhǔn)、使用狀態(tài)及許用應(yīng)力按表1的規(guī)定。1.1.2殼體用鋼板(不包含多層容器的層板)應(yīng)按表2的規(guī)定逐張進(jìn)行超聲檢測,鋼板超聲檢測方法和質(zhì)量等級按JB/T4730.3的規(guī)定。1.1.3受壓元件用鋼板，其使用溫度下限按表3的規(guī)定，表3中Q245R和Q345R鋼板在下述使用條件下應(yīng)在正火狀態(tài)下使用。a)用于多層容器內(nèi)筒的Q245R和Q345R；b)用于殼體的厚度大于36mm的Q245R和Q345R；c)用于其余受壓元件(法蘭、管板、平蓋等)的厚度大于50mm的Q245R和Q345R。1.2高合金鋼鋼板鋼板的標(biāo)準(zhǔn)、厚度范圍及許用應(yīng)力按表4的規(guī)定。2鋼管2.1碳素鋼和低合金鋼鋼管2.1.1鋼管的標(biāo)準(zhǔn)、使用狀態(tài)及許用應(yīng)力按表5的規(guī)定。對壁厚大于30mm的鋼管和使用溫度低于-20℃的鋼管，表中的正火不同樣意用終軋溫度符合正火溫度的熱軋來取代。2.1.2GB9948中各鋼號鋼管的使用規(guī)定以下：a）換熱管應(yīng)采納冷拔或冷軋鋼管，鋼管的尺寸精度應(yīng)采納高級精度；b）外徑不小于70mm，且壁厚不小于6.5mm的10和20鋼管，應(yīng)分別進(jìn)行-20℃和0℃的沖擊試驗，3個縱向標(biāo)準(zhǔn)試樣的沖擊功均勻值應(yīng)不小于31J。10和20鋼管的使用溫度下限分別為-20℃和0℃。2.1.3GB6479中各鋼號鋼管的使用規(guī)定以下：a)鋼中含硫量應(yīng)不大于0.020%；b)換熱管應(yīng)采納冷拔或冷軋鋼管，鋼管尺寸精度應(yīng)采納高級精度；c)外徑不小于70mm，且壁厚不小于6.5mm的20和16Mn鋼管，應(yīng)分別進(jìn)行0℃和-20℃的沖擊試驗，3個縱向標(biāo)準(zhǔn)試樣的沖擊功均勻值應(yīng)分別不小于31J和34J。20和16Mn鋼管的使用溫度下限分別為0℃和-20℃。2.1.4使用溫度低于-20℃的鋼管，其鋼號、使用狀態(tài)和沖擊試驗溫度（即鋼管的使用溫度下限）按表6的規(guī)定。表中16Mn鋼的化學(xué)成分應(yīng)符合P≤0.025%、S≤0.012%的規(guī)定，外徑不小于70mm，且壁厚不小于6.5mm的鋼管進(jìn)行-40℃的沖擊試驗，3個縱向標(biāo)準(zhǔn)試樣的沖擊功均勻值應(yīng)不小于34J。09MnD和09MnNiD鋼管的相關(guān)規(guī)定見4.2.2和4.2.3。2.2高合金鋼鋼管鋼管的標(biāo)準(zhǔn)、壁厚范圍及許用應(yīng)力按表7的規(guī)定。鋼管的交貨狀態(tài)應(yīng)按表7中相應(yīng)鋼管標(biāo)準(zhǔn)的規(guī)定。表7中GB13296和GB/T14976鋼號中的一致數(shù)字代號系按GB/T20878的規(guī)定。表1碳素鋼和低合金鋼鋼板許用應(yīng)力鋼號鋼板標(biāo)準(zhǔn)使用狀態(tài)厚度mm室溫強(qiáng)度指標(biāo)在以下溫度（℃）下的許用應(yīng)力，MPa注RmMPaReLMPa≤20100150200250300350400425450475500525550575600Q245RGB713熱軋，控軋，正火3～164002451481471401311171089891856141＞16～364002351481401331241111029386846141＞36～60400225148133127119107988982806141＞60～10039020513712311710998908275736141＞100～15038018512311210710090807370676141Q345RGB713熱軋，控軋，正火3～16510345189189189183167153143125936643＞16～36500325185185183170157143133125936643＞36～60490315181181173160147133123117936643＞60～100490305181181167150137123117110936643＞100～150480285178173160147133120113107936643＞150～200470265174163153143130117110103936643Q370RGB713正火10～16530370196196196196190180170＞16～36530360196196196193183173163＞36～6052034019319319318017016015018MnMoNbRGB713正火加回火30～60570400211211211211211211211207195177117＞60～10057039021121121121121121121120319217711713MnNiMoRGB713正火加回火30～100570390211211211211211211211203＞100～150570380211211211211211211211200表1（續(xù)）鋼號鋼板標(biāo)準(zhǔn)使用狀態(tài)厚度mm室溫強(qiáng)度指標(biāo)在以下溫度（℃）下的許用應(yīng)力，MPa注RmMPaReLMPa≤2010015020025030035040042545047550052555057560015CrMoRGB713正火加回火6～60450295167167167160150140133126122119117885837＞60～100450275167167157147140131124117114111109885837＞100～15044025516315714714013312311711010710410288583714Cr1MoRGB713正火加回火6~100520310193187180170163153147140135130123805433＞100～15051030018918017316315714714013313012712180543312Cr2Mo1RGB713正火加回火6~1505203101931871801731701671631601571471198961463712Cr1MoVRGB713正火加回火6~604402451631501401331271171111051031009895825941＞60～100430235157147140133127117111105103100989582594112Cr2MolVR——正火加回火30～12059041521921921921921921921921921919316313410472116MnDRGB3531正火，正火加回火6～16490315181181180167153140130＞16～36470295174174167157143130120＞36～60460285170170160150137123117＞60～100450275167167157147133120113＞100～12044026516316315314313011711015MnNiDRGB3531正火，正火加回火6～16490325181181181173＞16～36480315178178178167＞36～60470305174174173160表1（續(xù)）15MnNiNbDR正火，正火加回火09MnNiDR正火，正火加回火08Ni3DR06Ni9DR07MnMoVR07MnNiVDR07MnNiMoDR12MnNiVR注1：該鋼板的技術(shù)要求見（4資料的增補(bǔ)規(guī)定）。表2殼體用鋼板超聲檢測要求鋼號鋼板厚度mm容器使用條件質(zhì)量等級Q245RQ345R＞30~36不低于Ⅲ級＞36不低于Ⅱ級Q370RMn-Mo系Cr-Mo系Cr-Mo-V系＞25不低于Ⅱ級16MnDRNi系低溫鋼（調(diào)質(zhì)狀態(tài)除外）＞20不低于Ⅱ級調(diào)質(zhì)狀態(tài)使用的鋼號＞16Ⅰ級多層容器內(nèi)筒鋼板≥12Ⅰ級≥12介質(zhì)毒性程度為極度或高度危害；在濕H2S環(huán)境中使用；設(shè)計壓力大于或等于10MPa。不低于Ⅱ級表3鋼板的使用溫度下限鋼號鋼板厚度mm使用狀態(tài)沖擊試驗要求使用溫度下限℃中常溫用鋼板Q245R＜6熱軋、控軋、正火免做沖擊-206~120℃沖擊-20＞12~16-10＞16~1500＞12~20熱軋、控軋-20℃沖擊（協(xié)議）-20＞12~150正火-20Q345R＜6熱軋、控軋、正火免做沖擊-206~200℃沖擊-20＞20~25-10＞25~2000＞20~30熱軋、控軋-20℃沖擊（協(xié)議）-20＞20~200正火-20Q370R10~60正火-20℃沖擊-2018MnMoNbR30~100正火加回火0℃沖擊0-10℃沖擊（協(xié)議）-1013MnNiMoR30~150正火加回火0℃沖擊0-20℃沖擊（協(xié)議）-2007MnMoVR10~60調(diào)質(zhì)-20℃沖擊-2012MnNiVR10~60調(diào)質(zhì)-20℃沖擊-20低溫用鋼板16MnDR6~60正火,正火加回火-40℃沖擊-40＞60~120-30℃沖擊-3015MnNiDR6~60正火,正火加回火-45℃沖擊-4515MnNiNbDR10~60正火,正火加回火-50℃沖擊-5009MnNiDR6~120正火,正火加回火-70℃沖擊-7008Ni3DR6~100正火,正火加回火,調(diào)質(zhì)-100℃沖擊-10006Ni9DR6~40(6~12)調(diào)質(zhì)（或兩次正火加回火）-196℃沖擊-19607MnNiVDR10~60調(diào)質(zhì)-40℃沖擊-4007MnNiMoDR10~50調(diào)質(zhì)-50℃沖擊-50表4高合金鋼鋼板許用應(yīng)力鋼號鋼板標(biāo)準(zhǔn)厚度mm在以下溫度(℃)下的許用應(yīng)力，MPa注≤20100150200250300350400450500525550575600625650675700725750775800S11306GB245111.5～25137126123120119117112109S11348GB245111.5～2511310410110099979590S11972GB245111.5～8154154149142136131125S21953GB245111.5～80233233223217210203S22253GB245111.5～80230230230230223217S22053GB245111.5～80230230230230223217S30408GB245111.5～8013713713713012211411110710310098917964524232271137114103969085827976747371676252423227S30403GB245111.5～801201201181101039894918811209887817673696765S30409GB245111.5～8013713713713012211411110710310098917964524232271137114103969085827976747371676252423227S31008GB245111.5～801371371371371341301251221191151131058461433123191512108113712111110599969390888584838161433123191512108S31608GB245111.5～801371371371341251181131111091071061059681655038301137117107999387848281797878767365503830表4(續(xù))鋼號鋼板標(biāo)準(zhǔn)厚度mm在以下溫度(℃)下的許用應(yīng)力，MPa注≤20100150200250300350400450500525550575600625650675700725750775800S31603GB245111.5～801201201171081009590868411209887807470676462S31668GB245111.5～80137137137134125118113111109107113711710799938784828179S31708GB245111.5～801371371371341251181131111091071061059681655038301137117107999387848281797878767365503830S31703GB245111.5～801371371371341251181131111091137117107999387848281S32168GB245111.5～80137137137130122114111108105103101835844332518131137114103969085828078767574584433251813S39042GB245111.5～8014714714714714413112211471371271171079790注1：該行許用應(yīng)力僅合用于贊成產(chǎn)生微量永遠(yuǎn)變形之元件，關(guān)于法蘭或其余有微量永遠(yuǎn)變形就惹起泄露或故障的場合不可以采納。表5碳素鋼和低合金鋼鋼管許用應(yīng)力鋼號鋼管標(biāo)準(zhǔn)使用狀態(tài)壁厚mm室溫強(qiáng)度指標(biāo)在以下溫度（℃）下的許用應(yīng)力，MPa注RmMPaReLMPa≤2010015020025030035040042545047550052555057560010GB/T8163熱軋≤103352051241211151089889827570614120GB/T8163熱軋≤104102451521471401311171089888836141Q345DGB/T8163正火≤1047034517417417417416715314312593664310GB9948正火≤1633520512412111510898898275706141＞16～303351951241171111059585797367614120GB9948正火≤164102451521471401311171089888836141＞16～30410235152140133124111102938378614120GB6479正火≤164102451521471401311171089888836141＞16～40410235152140133124111102938378614116MnGB6479正火≤16490320181181180167153140130123936643＞16～4049031018118117316014713312311793664312CrMoGB9948正火加回火≤164102051371211151081019588828079777450＞16～3041019513011711110598918579777574725015CrMoGB9948正火加回火≤1644023515714013112411710810195939190885837＞16～304402251501331241171111039791898786855837＞30～5044021514312711711110597928785848381583712Cr2Mol——正火加回火≤30450280167167163157153150147143140137119896146371lCr5MoGB9948退火≤1639019513011711110810510198959391836246352618＞16～3039018512311110510198959188868582624635261812CrlMoVGGB5310正火加回火≤304702551701531431331271171111051031009895825941表5（續(xù)）鋼號鋼管標(biāo)準(zhǔn)使用狀態(tài)壁厚mm室溫強(qiáng)度指標(biāo)在以下溫度（℃）下的許用應(yīng)力，MPa注RmMPaReLMPa≤2010015020025030035040042545047550052555057560009MnD——正火≤8420270156156150143130120110109MnNiD——正火≤8440280163163157150143137127108Cr2AlMo——正火加回火≤8400250148148140130123117109CrCuSb——正火≤83902451441441371271注1：該鋼管的技術(shù)要求見（4資料的增補(bǔ)規(guī)定）。表6低溫用鋼管的使用溫度下限鋼號鋼管標(biāo)準(zhǔn)使用狀態(tài)壁厚，mm沖擊試驗溫度，℃16MnGB6479正火≤40-4009MnD——正火≤8-5009MnNiD——正火≤8-70表7高合金鋼鋼管許用應(yīng)力Cr18Ni9（S30408）00Cr17Ni14Mo2GB/T13296≤1411711711710810095908684117978780747067646200Cr17Ni14Mo2GB/T14976≤281171171171081009590868411179787807470676462GB13296≤14137137137134125118113111109107113711710799938784828179表7（續(xù)）鋼號鋼管標(biāo)準(zhǔn)壁厚mm在以下溫度（℃）下的許用應(yīng)力，MPa注≤201001502002503003504004505005255505756006256506757007257507758000Cr18Ni12Mo2Ti（S31668）GB/T14976≤281371371371341251181131111091071137117107999387848281790Cr19Ni13Mo3（S31708）GB13296≤1413713713713412511811311110910710610596816550383011371171079993878482817978787673655038300Cr19Ni13Mo3（S31708）GB/T14976≤28137137137134125118113111109107106105968165503830113711710799938784828179787876736550383000Cr19Ni13Mo3（S31703）GB13296≤14117117117117117117113111109111711710799938784828100Cr19Ni13Mo3（S31703）GB/T14976≤2811711711711711711711311110911171171079993878482810Cr25Ni20（S31008）GB13296≤1413713713713713413012512211911511310584614331231915121081137121111105999693908885848381614331231915121080Cr25Ni20（S31008）GB/T14976≤2813713713713713413012512211911511310584614331231915121081137121111105999693908885848381614331231915121081Cr19Ni9（S30409）GB13296≤1413713713713012211411110710310098917964524232271137114103969085827976747371676252423227S21953GB/T21833≤12233233223217210203表7（續(xù)）鋼號鋼管標(biāo)準(zhǔn)壁厚mm在以下溫度（℃）下的許用應(yīng)力，MPa注≤20100150200250300350400450500525550575600625650675700725750775800S22253GB/T21833≤12230230230230223217S22053GB/T21833≤12243243243243240233S25073GB/T21833≤12296296296280267257S30408GB/T12771≤28116116116111104979491888583776754443627231，211697888277727067656362605753443627232S30403GB/T12771≤289999999488838077751，29982746965625957552S31608GB/T12771≤281161161161141061009694939190898269554332261，211699918479747170696766666562554332262S31603GB/T12771≤289999999285817773711，29982746863605754532S32168GB/T12771≤28116116116111104979492898886714937282115111，211697888277727068666564634937282115112S30408GB/T24593≤4116116116111104979491888583776754443627231，211697888277727067656362605753443627232S30403GB/T24593≤49999999488838077751，29982746965625957552S31608GB/T24593≤41161161161141061009694939190898269554332261，211699918479747170696766666562554332262表7（續(xù)）鋼號鋼管標(biāo)準(zhǔn)壁厚mm在以下溫度（℃）下的許用應(yīng)力，MPa注≤20100150200250300350400450500525550575600625650675700725750775800S31603GB/T24593≤49999999285817773711，29982746863605754532S32168GB/T24593≤4116116116111104979492898886714937282115111，211697888277727068666564634937282115112S21953GB/T21832≤201981981901851791732S22253GB/T21832≤201961961961961901852S22053GB/T21832≤202072072072072041982注1：該行許用應(yīng)力僅合用于贊成產(chǎn)生微量永遠(yuǎn)變形之元件，關(guān)于法蘭或其余有微量永遠(yuǎn)變形就惹起泄露或故障的場合不可以采納。注2：該行許用應(yīng)力已乘焊接接頭系數(shù)0.85。3鋼鍛件3.1碳素鋼和低合金鋼鋼鍛件3.1.1鋼鍛件的使用溫度下限按表8的規(guī)定。3.1.2鋼鍛件的標(biāo)準(zhǔn)、使用狀態(tài)及許用應(yīng)力按表9的規(guī)定。3.2高合金鋼鋼鍛件鋼鍛件的標(biāo)準(zhǔn)、公稱厚度范圍及許用應(yīng)力按表10的規(guī)定。鋼鍛件的交貨狀態(tài)應(yīng)按NB/T47010的規(guī)定。表8鋼鍛件的使用溫度下限鋼號公稱厚度mm沖擊試驗要求使用溫度下限℃中常溫用鋼鍛件20≤3000℃沖擊0-20℃沖擊-2035≤10020℃沖擊0＞100~3002016Mn≤3000℃沖擊0-20℃沖擊-2020MnMo≤7000℃沖擊0-20℃沖擊-2020MnMoNb≤5000℃沖擊020MnNiMo≤500-20℃沖擊-2035CrMo≤5000℃沖擊-20低溫用鋼鍛件16MnD≤100-45℃沖擊-45＞100~300-40℃沖擊-4020MnMoD≤300-40℃沖擊-40＞300~700-30℃沖擊-3008MnNiMoVD≤300-40℃沖擊-4010Ni3MoVD≤300-50℃沖擊-5009MnNiD≤300-70℃沖擊-7008Ni3D≤300-100℃沖擊-100注：20、16Mn和20MnMo鋼鍛件如進(jìn)行-20℃沖擊試驗，應(yīng)在設(shè)計文件中注明。表9碳素鋼和低合金鋼鋼鍛件許用應(yīng)力鋼號鋼鍛件標(biāo)準(zhǔn)使用狀態(tài)公稱厚度mm室溫強(qiáng)度指標(biāo)在以下溫度(℃)下的許用應(yīng)力，MPa注RmMPaReLMPa≤2010015020025030035040042545047550052555057560020NB/T47008正火、正火加回火≤1004102351521401331241111029386846141＞100～200400225148133127119107988982806141＞200～3003802051371231171099890827573614135NB/T47008正火、正火加回火≤100510265177157150137124115105988561411＞100～3004902451631501431331211111019585614116MnNB/T47008正火、正火加回火，調(diào)質(zhì)≤100480305178178167150137123117110936643＞100～200470295174174163147133120113107936643＞200～30045027516716715714313011711010393664320MnMoNB/T47008調(diào)質(zhì)≤3005303701961961961961961901831731671318449＞300～5005103501891891891891871801731631571318449＞500～700490330181181181181180173167157150131844920MnMoNbNB/T47008調(diào)質(zhì)≤300620470230230230230230230230230230177117＞300～50061046022622622622622622622622622617711720MnNiMoNB/T47008調(diào)質(zhì)≤50062045023023023023023023023023035CrMoNB/T47008調(diào)質(zhì)≤30062044023023023023023023022321319715011179501＞300～500610430226226226226226226223213197150111795015CrMoNB/T47008正火加回火，調(diào)質(zhì)≤300480280178170160150143133127120117113110885837＞300～50047027017416315314313712712011311010710388583714CrlMoNB/T47008正火加回火，調(diào)質(zhì)≤300490290181180170160153147140133130127122805433＞300～500480280178173163153147140133127123120117805433表9(續(xù))鋼號鋼鍛件標(biāo)準(zhǔn)使用狀態(tài)公稱厚度mm室溫強(qiáng)度指標(biāo)在以下溫度(℃)下的許用應(yīng)力，MPa注RmMPaReLMPa≤2010015020025030035040042545047550052555057560012Cr2MolNB/T47008正火加回火，調(diào)質(zhì)≤30051031018918718017317016716316015714711989614637＞300～5005003001851831771701671631601571531471198961463712CrlMoVNB/T47008正火加回火，調(diào)質(zhì)≤300470280174170160153147140133127123120117113825941＞300～50046027017016315314714013312712011711311010782594112Cr2MolVNB/T47008正火加回火，調(diào)質(zhì)≤30059042021921921921921921921921921919316313410472＞300～5005804102152152152152152152152152151931631341047212Cr3MolVNB/T47008正火加回火，調(diào)質(zhì)≤300590420219219219219219219219219219193＞300～5005804102152152152152152152152152151931Cr5MoNB/T47008正火加回火，調(diào)質(zhì)≤50059039021921921921921721321019013610783624635261816MnDNB/T47009調(diào)質(zhì)≤100480305178178167150137123117＞100～200470295174174163147133120113＞200～30045027516716715714313011711020MnMoDNB/T47009調(diào)質(zhì)≤300530370196196196196196190183＞300～500510350189189189189187180173＞500～70049033018118118118118017316708MnNiMoVDNB/T47009調(diào)質(zhì)≤30060048022222222222210Ni3MoVDNB/T47009調(diào)質(zhì)≤30060048022222222222209MnNiDNB/T47009調(diào)質(zhì)≤200440280163163157150143137127＞200～30043027015915915014313713012008Ni3DNB/T47009調(diào)質(zhì)≤300460260170注1：該鋼鍛件不得用于焊接構(gòu)造。表10高合金鋼鋼鍛件許用應(yīng)力鋼號鋼鍛件標(biāo)準(zhǔn)公稱厚度mm在以下溫度（℃）下的許用應(yīng)力，MPa注≤20100150200250300350400450500525550575600625650675700725750775800S11306NB/T47010≤150137126123120119117112109S30408NB/T47010≤30013713713713012211411110710310098917964524232271137114103969085827976747371676252423227S30403NB/T47010≤3001171171171101039894918811179887817673696765S30409NB/T47010≤30013713713713012211411110710310098917964524232271137114103969085827976747371676252423227S31008NB/T47010≤3001371371371371341301251221191151131058461433123191512108113712111110599969390888584838161433123191512108S31608NB/T47010≤3001371371371341251181131111091071061059681655038301137117107999387848281797878767365503830S31603NB/T47010≤3001171171171081009590868411179887807470676462S31668NB/T47010≤300137137137134125118113111109107113711710799938784828179S31703NB/T47010≤3001301301301301251181131111091130117107999387848281S32168NB/T47010≤300137137137130122114111108105103101835844332518131137114103969085828078767574584433251813S39042NB/T47010≤30014714714714714413112211471371271171079790S21953NB/T47010≤150219210200193187180S22253NB/T47010≤150230230230230223217S22053NB/T47010≤150230230230230223217注：該行許用應(yīng)力僅合用于贊成產(chǎn)生微量永遠(yuǎn)變形之元件，關(guān)于法蘭或其余有微量永遠(yuǎn)變形就惹起泄露或故障的場合不可以采納。4資料的增補(bǔ)規(guī)定4.1低合金鋼鋼板4.1.112Cr2Mo1VR鋼板的技術(shù)要求以下：a)鋼的化學(xué)成分（熔煉分析）按表11的規(guī)定；表11化學(xué)成分，%CSiMnPSCrMo0.11~0.15≤0.100.30~0.60≤0.010≤0.0052.00~2.500.90~1.10VCuNiNbTiBCa0.25~0.35≤0.20≤0.25≤0.07≤0.030≤0.0020≤0.015b)鋼板的成品化學(xué)分析贊成誤差：P+0.003%，S+0.002%，其余元素按GB/T222中表2的規(guī)定或按供需兩方協(xié)議；c)鋼板以正火（贊成水冷加快冷卻）加回火熱辦理狀態(tài)交貨，回火溫度不低于675℃；d)鋼板應(yīng)逐熱辦理張進(jìn)行力學(xué)性能試驗，其結(jié)果按表12的規(guī)定。表12公稱厚度mm拉伸試驗（橫向）沖擊試驗（橫向）RmMPaReLMPaA%試驗溫度℃KV2J30~120590~760≥415≥17-20≥60e)依據(jù)需方要求，鋼板可進(jìn)行曲折試驗，彎心直徑為3倍試樣厚度，曲折角度為180°。曲折試驗后，試樣曲折表面面無肉眼可見裂紋；f)鋼板在化學(xué)成分和力學(xué)性能等方面的特別要求由供需兩方協(xié)議；g)本條未規(guī)定事項均按GB713的相關(guān)規(guī)定。4.1.215MnNiNbDR鋼板的技術(shù)要求以下：a)鋼的化學(xué)成分（熔煉分析）按表13的規(guī)定；表13化學(xué)成分，%CSiMnPSNiNb≤0.180.15~0.501.20~1.60≤0.020≤0.0100.30~0.700.015~0.040b)鋼板以正火或正火加回火熱辦理狀態(tài)交貨；c)鋼板的力學(xué)性能試驗結(jié)果按表14的規(guī)定；d)依據(jù)需方要求，鋼板可進(jìn)行曲折試驗，彎心直徑為3倍試樣厚度，曲折角度為180°。曲折試驗后，試樣曲折表面面無肉眼可見裂紋；e)本條未規(guī)定事項均按GB3531的相關(guān)規(guī)定。表14公稱厚度mm拉伸試驗（橫向）沖擊試驗（橫向）RmMPaReLMPaA%試驗溫度℃KV2J10~16530~630≥370≥20-50≥60>16~36530~630≥360>36~60520~620≥3504.1.308Ni3DR鋼板的技術(shù)要求以下：a)鋼的化學(xué)成分（熔煉分析）按表15的規(guī)定；表15化學(xué)成分，%CSiMnPSNiMoV≤0.100.15~0.350.30~0.80≤0.015≤0.0103.25~3.70≤0.12≤0.05b)鋼板以正火、正火（贊成水冷加快冷卻）加回火、離線淬火加回火熱辦理狀態(tài)交貨，回火溫度不低于600℃；c)鋼板的力學(xué)性能試驗結(jié)果按表16的規(guī)定。以正火（水冷加快冷卻）加回火和離線淬火加回火狀態(tài)交貨的鋼板，應(yīng)逐熱辦理張進(jìn)行力學(xué)性能試驗；表16公稱厚度mm拉伸試驗（橫向）沖擊試驗（橫向）RmMPaReLMPaA%試驗溫度℃KV2J6~60490~620≥320≥21-100≥47>60~100480~610≥300d）依據(jù)需方要求，鋼板可進(jìn)行曲折試驗，彎心直徑為3倍試樣厚度，曲折角度為180°。曲折試驗后，試樣曲折表面面無肉眼可見裂紋；e）本條未規(guī)定事項均按GB3531的相關(guān)規(guī)定。4.1.406Ni9DR鋼板的技術(shù)要求以下：a)鋼的化學(xué)成分（熔煉分析）按表17的規(guī)定；表17化學(xué)成分，%CSiMnPSNiMoV≤0.08≤0.350.30~0.80≤0.008≤0.0048.50~10.00≤0.10≤0.01注：Cr+Cu+Mo≤0.50%b)鋼板的成品化學(xué)成分贊成誤差：P+0.003%，S+0.002%，其余元素按GB/T222中表2的