CAJ | 학술논문

压力容器用不锈钢几乎全为奥氏体不锈钢和奥氏体/铁素体双相不锈钢。在ASME -2011a， EN 13445：2009及GB 150-2011压力容器标准中所采用的奥氏体与双相不锈钢的所有牌号中，含氮钢牌号所占百分比分别为63．4％，76．4％和60％。在不锈钢材料标准中所有的双相不锈钢（指1971年后研制的牌号）、超级奥氏体不锈钢以及超级或特超级双相不锈钢中的氮含量基本均为0．1％～0．6％（称其为中氮型不锈钢）。EN 13445：2009规定可用于-273℃的奥氏体不锈钢10个牌号均为含氮钢。本文讨论了氮在不锈钢中的溶解度与含量、含氮不锈钢的类型、氮对不锈钢性能与组织的影响以及含氮不锈钢在压力容器中的应用。国外压力容器标准中N＝0．1％～0．6％的中氮型奥氏体不锈钢已成为最重要的高性能不锈钢。这些钢在中国压力容器标准中尚未采用。而ASME-2011a中已用12个牌号，EN 13445：2009中已用14个牌号。中国仅在GB/T 20878-2007中已有23个牌号，GB/T 4237-2007（或GB/T 3280-2007）中已有13个牌号。本文建议在此基础上可进行更多的压力容器的应用工作。
압력용기용불수강궤호전위오씨체불수강화오씨체/철소체쌍상불수강。재ASME -2011a， EN 13445：2009급GB 150-2011압력용기표준중소채용적오씨체여쌍상불수강적소유패호중，함담강패호소점백분비분별위63．4％，76．4％화60％。재불수강재료표준중소유적쌍상불수강（지1971년후연제적패호）、초급오씨체불수강이급초급혹특초급쌍상불수강중적담함량기본균위0．1％～0．6％（칭기위중담형불수강）。EN 13445：2009규정가용우-273℃적오씨체불수강10개패호균위함담강。본문토론료담재불수강중적용해도여함량、함담불수강적류형、담대불수강성능여조직적영향이급함담불수강재압력용기중적응용。국외압력용기표준중N＝0．1％～0．6％적중담형오씨체불수강이성위최중요적고성능불수강。저사강재중국압력용기표준중상미채용。이ASME-2011a중이용12개패호，EN 13445：2009중이용14개패호。중국부재GB/T 20878-2007중이유23개패호，GB/T 4237-2007（혹GB/T 3280-2007）중이유13개패호。본문건의재차기출상가진행경다적압력용기적응용공작。
Types of stainless steel for pressure vessel almost are all austenitic stainless steel and duplex austenitic/ferritic stainless steel.The percentages of designations of nitrogen-bearing steel grade individ-ually are 63 .4%,76 .4% and 60% among all designations of austenitic and duplex stainless steel types used in ASME-2011a,EN 13445:2009 and GB 150-2011 pressure vessel standards.Nitrogen contents of all duplex stainless steels(research after 1971),all super austenitic stainless steels and all super or hy-per duplex stainless steels in stainless steel standards basically are 0.1%~0.6%(call them middle ni-trogen-bearing stainless steel).10 designations of austenitic stainless steel can used for -273 ℃speci-fied in EN 13445:2009 are all nitrogen-bearing steel grade.Nitrogen solubility and content in stainless steel,types of nitrogen-bearing stainless steel,nitrogen effect for performance and structure of stainless steel and use of nitrogen-bearing stainless steel for pressure vessel are discussed.Middle nitrogen-bear-ing(N=0.1%~0.6%)austenitic stainless steels have becomed the most important high performance Types of stainless steel for pressure vessel almost are all austenitic stainless steel and duplex austenitic/ferritic stainless steel.The percentages of designations of nitrogen-bearing steel grade individ-ually are 63 .4%,76 .4% and 60% among all designations of austenitic and duplex stainless steel types used in ASME-2011a,EN 13445:2009 and GB 150-2011 pressure vessel standards.Nitrogen contents of all duplex stainless steels(research after 1971),all super austenitic stainless steels and all super or hy-per duplex stainless steels in stainless steel standards basically are 0.1%~0.6%(call them middle ni-trogen-bearing stainless steel).10 designations of austenitic stainless steel can used for -273 ℃speci-fied in EN 13445:2009 are all nitrogen-bearing steel grade.Nitrogen solubility and content in stainless steel,types of nitrogen-bearing stainless steel,nitrogen effect for performance and structure of stainless steel and use of nitrogen-bearing stainless steel for pressure vessel are discussed.Middle nitrogen-bear-ing(N=0.1%~0.6%)austenitic stainless steels have becomed the most important high performance stainless steels in foreign pressure vessel standards.12 and 14 designations have individually are used in ASME-2011a and EN 13445:2009.But these steels are not used in China pressure vessel standard. There are 23 and 13 designations in GB/T 20878-2007 and GB/T 4237-2007(or GB/T 3280-2007) only.This paper proposes to do more works used for pressure vessels on this basis.