標(biāo)準(zhǔn)解讀

《GB/T 713-2014 鍋爐和壓力容器用鋼板》與《GB 713-2008 鍋爐和壓力容器用鋼板》相比,在內(nèi)容上有若干重要調(diào)整。首先,標(biāo)準(zhǔn)編號(hào)從GB變更為GB/T,這意味著該標(biāo)準(zhǔn)由強(qiáng)制性國(guó)家標(biāo)準(zhǔn)轉(zhuǎn)變?yōu)橥扑]性國(guó)家標(biāo)準(zhǔn)。其次,對(duì)于材料牌號(hào)進(jìn)行了部分更新或刪除,例如新增了一些適應(yīng)更高要求的鋼材牌號(hào),同時(shí)也取消了某些不再適用的老牌號(hào)。再者,針對(duì)化學(xué)成分的要求有所調(diào)整,包括但不限于對(duì)碳、錳等元素含量范圍做出更嚴(yán)格規(guī)定。此外,力學(xué)性能指標(biāo)方面也做了相應(yīng)修改,比如提高了某些牌號(hào)鋼板的屈服強(qiáng)度下限值。同時(shí),增加了對(duì)鋼板表面質(zhì)量及尺寸公差的新要求,以滿(mǎn)足現(xiàn)代工業(yè)對(duì)產(chǎn)品質(zhì)量日益增長(zhǎng)的需求。在試驗(yàn)方法上,《GB/T 713-2014》引用了最新的相關(guān)國(guó)家標(biāo)準(zhǔn),并細(xì)化了部分檢測(cè)項(xiàng)目的具體操作流程。最后,關(guān)于標(biāo)志、包裝等方面也有細(xì)微變動(dòng),更加注重信息標(biāo)識(shí)清晰度以及運(yùn)輸過(guò)程中產(chǎn)品保護(hù)措施的有效性。


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ICS7714050

H46..

NationalStandardofthePeolesReublicofChina

p’p

GB/T713—2014

ReplaceGB713—2008

Steelflatforboilersandpressurevessels

鍋爐和壓力容器用鋼板

ISO9328-22011Steelflatroductsforressureuroses—

(:,pppp

Technicaldeliverconditions—Part2Non-alloandallosteels

y:yy

withsecifiedelevatedtemeratureroertiesNEQ

pppp,)

EnlishTranslation

(g)

Issuedate2014-06-24Imlementationdate2015-04-01

:p:

IssuedbyGeneralAdministrationofQualitySupervisionInspectionand

,

QuarantineofthePeoplesRepublicofChina

StandardizationAdministrationofthePeoplesRepublicofChina

GB/T713—2014

Foreword

SAC/TC183isinchargeofthisEnglishtranslationIncaseofanydoubtaboutthecontentsofEnglish

.

translationtheChineseoriginalshallbeconsideredauthoritative

,.

ThisstandardisdraftedinaccordancewiththerulesgivenintheGB/T11—2009Directivesfor

.

standardization—Part1Structureanddraftingofstandards

:.

ThisstandardreplacestheGB713—2008Steelplatesforboilersandpressurevesselsinwhole

().

Inadditiontoanumberofeditorialchangesthefollowingtechnicaldeviationshavebeenmadewith

,

respecttotheGB713—2008thepreviousedition

().

—Expandthethicknessrangeofsteelplates

;

—AddgradeQ420R07Cr2AlMoR12Cr2Mo1VR

,,;

—LowertheupperlimitofSandPcontentofeachgrade

;

—IncreasetheCharpyV-notchimpactenergyvaluesofeachgrade

;

—Specifythereductionratioofingotandslabsmadebyelectroslagremeltingprocess

;

—Specifytheprinciplefortestunitoflargesingleheavyplates

.

ThisstandardhasbeenredraftedbyreferringtoISO9328-22011Steelflatproductsforpressure

:

purposes—Technicaldeliveryconditions—Part2Non-alloyandalloysteelswithspecifiedelevated

:

temperaturepropertiesHoweverthisstandardisnotequivalenttoISO9328-22011

.:.

ThestandardwasproposedbyChinaIronandSteelAssociation

.

ThisstandardwaspreparedbySAC/TC183TechnicalCommitteeonSteelofStandardizationCom-

mitteeofChina

.

Thepreviouseditionsofthisstandardareasfollows

:

—GB713—1963GB713—1972GB713—1986GB713—1997GB713—2008

,,,,;

—GB6654—1996

.

GB/T713—2014

Steelflatforboilersandpressurevessels

1Scope

Thisstandardspecifiestheorderinginformationgradesdesignationdimensionshapemassand

,’,,,

permissibletolerancetechnicalrequirementstestmethodsinspectionrulespackingmarking

,,,,,,

andqualitycertificateofsteelplatesandsheetsforboilersandpressurevessels

.

Thisstandardisapplicabletosteelplatesandsheetsinthicknessesfrom3mmto250mminclusive

forpressurizedpartsofboilerandmedium-to-ambient-temperaturepressurevessels

.

2Normativereferences

ThefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocumentFor

.

datedreferencesonlytheeditioncitedappliesForundatedreferencesthelatesteditionoftheref-

,.,

erenceddocumentincludinganyamendmentsapplies

().

GB/T222Permissibletolerancesforchemicalcompositionofsteelproducts

,

GB/T2233Methodsforchemicalanalysisofironsteelandalloy—Thediantipyrylmethanephos-

.,,

phomolybdategravimetricmethodforthedeterminationofphosphoruscontent

GB/T2239Ironsteelandalloy—Determinationofaluminiumcontent—ChromeazurolSphoto-

.,,

metricmethod

GB/T22311Ironsteelandalloy—Determinationofchromiumcontent—Visualtitrationorpoten-

.,,

tiometrictitrationmethodGB/T22311—2008ISO49371986MOD

(.,:,)

GB/T22314Methodsforchemicalanalysisofironsteelandalloy—TheN-benzoy-N-phenylhydrox-

.,,

ylam

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