GB3087-99（低中压锅炉用无缝钢管）.pdfVIP

ICS 77.140.30 H 48 ÷–a??à√ò1≤∫?1˙1˙o“±í?o GB/T 3087-1999 neq ISO 9329-1:1989 μ?÷–—11???”√?fi∑?∏÷1? Seamless Steel tubes for low and medium pressure 1˙o“÷ ??oo ?o????÷ 1999-11-01 ≈˙?o ￥˙?ê￡∫ GB/T 3087-1982 1999 °? 11 °? 01 ∑￠≤o 2000 °? 08 °? 01 μ ? 1˙o“÷ ??oo ?o????÷∑￠≤o 2?∞ —‘ ±?±í?o∑?μ?–?≤é”√ ISO 9329-1 ￡∫ 1989 °?—1??”√?fi∑?∏÷1??aa?oo ???o?-μ? 1 ≤?∑÷￡∫ 1ê?? “??μ?∑?∫??e∏÷1?°∑￡¨?á∫??“1˙?è???‘ GB 3087 °? 1982 ??–––fi??°￡ ±?±í?oμ?????∫?±?∫ò‘ –ì?′≤ó—?”?1˙o ±í?o￡ ??aa??￥?¨∫??1?≠????μ?–?≤é”√1˙o ±í ?o￡¨?‰à?÷∏±í”?1˙o ±í?o??μ±°￡ ”??∞∞ê±í?o??±?￡¨?‘“‘????????––?à–fi∏?￡∫ 1 –fi∏??à≥fl￥á‘ –ì?′≤ó÷∏±í°￡?°???à‘≠±ì 1 ∫?±ì 2 ￡¨≥fl￥á1ê∏ò∏???“?”√ GB/T 17395-1998 μ?±ì l °￡ 2 ‘?o”?à”√?¨÷?≈?∫?∏÷??‘?1?μ????ó°￡ 3 ?μμ??à?1?≠????é??fi￡¨?á∏fl?à 20 ∫≈∏÷μ??1?≠???????fi￡¨à?–°?à?1?≠????∑???°￡ ?‘∏fl??–‘???á≥??à“???°￡ 4 ‘?o”?à??￥≈??éà￥˙?ê“∫—1 μ—èμ???a?–≠é????ó￡¨?′≥¨é?≤???éà￥˙?ê“∫—1 ‘—è?é ???à??a?–≠é????ó°￡ 5 ?°???à 400mm “‘é?∏÷1?μ?—1±? ‘—è°￡ ±?±í?o?‘ μ ?÷??’?e￡¨￥˙?ê GB 3087-1982 °?μ?÷–—11???”√?fi∑?∏÷1?°∑°￡ ±?±í?o”é1˙o““±?e1§“μ?÷?á≥?°￡ ±?±í?o”é?′1˙∏÷±í?oa?oo ???‘±aá1è??°￡ ±?±í?o?e≤?μ??a￡∫∞∞é?∏÷?˙o??≈1′à?°￠≥é?o?fi∑?∏÷1?”–?fi‘e??1′à?°￡ ±?±í?o÷?“??e≤??à￡∫?”÷?√ò°￠≥? ”?°￠???à??°￠∑???a?°￡ ±?±í?o 1982 ?í 5 ‘? ?￥?∑￠≤o°￡ 1 ∑? ?? ±?±í?o1ê???àμ?—1∫?÷–—11???”√?fi∑?∏÷1?μ?≥fl￥á°￠??–?°￠÷???°￠oo ?“???°￠ ‘—è∑? ∑?°￠o?—è1ê‘ú°￠∞??∞°￠±í÷?∫?÷ ??÷§√? è°￡ ±?±í?o ”√”?÷?‘?∏?÷÷?á11μ?—1∫?÷–—11???o∞a˙≥μ1???”√μ?”≈÷ ?oà??á11∏÷??‘? ￡?o∑°￠??￡?∫??‰∞?(‘?)?fi∑?∏÷1?°￡ 2 “?”√±í?o ???–±í?oà?∞?∫¨μ?????￡ ???1?‘?±?±í?o÷–“?”√??11≥é??±?±í?oμ?????°￡±?±í?o≥?∞ê ±￡¨à? ?∞ê±?????”––?°￡à?”–±í?o?oaá±a–fi??￡ ?1”√±?±í?oμ?∏?∑?”????÷ 1”√???–±í?o ?ó–?∞ê±?μ??é??–‘°￡ GB/T 222-1984 ∏÷μ?a?—?∑÷??”√ ‘—??°—?∑?o∞≥é?∑a?—?≥é∑÷‘ –ì?′≤ó GB/T 223.5-1997 ∏÷?˙o∞∫??ea?—?∑÷??∑?∑? a1‘≠–?1?ó?àá—?1???∑?≤???àá??1?∫¨ ?? GB/T 223.12-1991 ∏÷?˙o∞∫??ea?—?∑÷??∑?∑? ?oàá??∑÷??-??±?àá?￡????1???∑?≤? ??∏??? GB/T 223