sh3520-04 石油化工铬钼耐热钢焊接规程

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1、ICS25.160P72备奏号J399一2004中华人民共和国石油科上L行现'1"r1准SH/T3520-2004代替SH3520一1991石油化工铬相耐热钢焊接规程Weldingspecificationofchromemolybdenumsteelforpetrochemicalengineering2004-10-20发布2005-04-01实施国家发展和改革委员会发布SH/T3520-2004目次前言·····································。·················

2、···。·················。·········································。一川1范Itl........................................................................................................................I2规范性引用文件·............................................................

3、............................................I3术语和定义·..............................................................................................................I4总则·..............................................................................................

4、.........................24】材料·....................................................................................................................24.2焊接材料..........................................................................................................

5、.....24.3焊接「艺评定·........................................................................................................34.4灶「···································。·································································。·········⋯⋯35k'前滩备···············

6、··············································。················································。⋯35.1坡}1制务·······························，·························。····................................................35.2组对与定位·...................................

7、........................................................................56灶接}_艺..................................................................................................................66.1般规定.............................................................

8、..................................................66.2予灾热·...................................................................................................................