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本文詳細(xì)闡述了根據(jù)工作溫度范圍劃分的十級(jí)閥門(mén)材料挑選與設(shè)計(jì)標(biāo)準(zhǔn)，從超低溫閥門(mén)至高溫閥門(mén)（PV級(jí)），每一級(jí)均對(duì)應(yīng)特定的材質(zhì)與工藝要求，為閥門(mén)的科學(xué)設(shè)計(jì)與制造提供了可靠依據(jù)。

1. -254???? -101??,?a?°3?μí??·§???±

êêó?óú?°3?μí??·§???±￡¨-254???2òo?a?3?? -101???2òò???3￡??÷ì?2?á?±?D???ó???D?á￠·??§??μ?°?ê?ì?2?Da???￠í-o??e?ò?áo??e￡???èè′|àíoóμ?μí??á|?§D??ü,ì?±eê?μí??3??÷èíD?±?D?′?μ?±ê×?μ?òa?ó?￡??áD°?ê?ì?2?Da???éó?óú×÷3?μí??·§???￡ASTM A351 CF8M?￠ CF3M?￠ CF8?￠ CF3￡?ASTM A182 F316 ?￠F316L?￠F304 ?￠F304L￡?ASTM A433 316?￠ 316L ?￠304 ?￠304L￡?3?μí??·§??μ?·§ì??￠·§???￠?￠°??ò·§°êμè?ú???ó1¤?°￡?±?D??úòoμa￡¨-196??￡??D??DDé?à?′|àí?￡

2. -100???? -30??,?a?°μí??·§???±

êêó?óúμí??·§??￡¨-100??~-30??￡?μ??÷ì?2?á?óDμí??°?ê?ì?2?Da??oíμí??3D?1?tó?ìú??ì?oí?íê?ì????￡μí??ó?°?ê?ì?2?Da??óDASTM A351 CF8M ?￠CF3M?￠CF8 ?￠CF3￡?ASTM A182 F316 ?￠ F316L?￠ F304 ?￠ F304L￡?ASTM A433 316?￠316L?￠304?￠304L?￡ò?é?°?ê?ì?2?Da??ò2êêò?1¤×÷???è?a-100??~-30???￡μí??3D?1?tó?ìú??ì?oí?íê?ì???óDASTM A352 LCA￡¨-32??￡?￡?LCB ?￠L(zhǎng)CC ￡¨-46??￡?￡? LC1 ￡¨-59??￡?￡?LC2?￠ LC2.1 ￡¨-73??￡?￡? LC3 ￡¨-100??￡??￡ASTM A352±ê×??Dμ?2?á?￡???è?2?á?μ?3?????????μí￡?μ?ê???ò±á?ê±?ˉ?§3é·?±?D?óD?é???òòa?óê?·?????μ?1¤3§?ú??±ê×??￡??èè′|àí1¤ò??′?ó￡?Dèòa?à′?×÷μ÷?ê′|?￡μí??3??÷èíD?′?2?μ?±ê×?òa?óê±￡?2??êDíí?á?×÷μí????ê1ó??￡

3. -29????200??,?a?°3￡??·§???±

°??ú¨C29????200??μ??aò????è??óò1¤×÷μ?·§??￡??ò??3????a?°3￡??·§???±?￡???÷òaàíóéê?￡o?aò????è??óòê????ì·§??μ??÷òa2?á??ù±?é???êêò?μ????è￡????ò?üê??í?ˉê′2?Da???ú?áòo?é?ê?Dμ??í?ˉê′1¤×÷???èμ?é??T￡?àyè?￡oCF8￡?CF3￡?304￡?304￡ì?ú???áàà?é?ê?D1¤×÷???è?ü200??￡?CF8M￡?CF3M￡?316￡?316￡ì?ú′×?áàà?é?ê?D1¤×÷???è?ü200??￡?200??ê?ó?????·úòò??×÷·§??μ??ü·a?a?t￡¨è?￡o?ü·a·§×ù￡??ü·aμ???￡?ì?á?μè￡?μ?×??????è?μ￡?200??ê?1è?e?o￡¨￡óI￡?￡?·ú?e?o￡¨FKM￡?μ?×???1¤×÷???è￡??1óD?ú?°áù?a?±1¤???D1¤×÷μ?·§??￡??ú200??ò????a·?×óà??a?a?a?-×óμ?á??éò?o???2???μèμè?￡

4. ￡?200????325??,?a?°?D??·§???±

°??ú￡?200????325??μ??aò????è??óò1¤×÷μ?·§??￡??ò??3????a?°?D??·§???±?￡???÷òaàíóéê?￡o?aò????è??óòê?????·úòò??2?êêò???￡??′2??üó?????·úòò??×÷·§??μ??ü·a?a?t￡?μ??üê???????±?￡¨PPL￡?μ?êêò???￡?ó???????±?×÷?ü·a?a?t￡??éò?ó?óú1¤×÷???è?ü325??￡??aò????è??óòò2ê??yìúμè2??ê·§??μ?×???1¤×÷???èé??T?￡

5. ￡?325????425??,?a?°??????·§???±

°??ú￡?325????425??μ??aò????è??óò1¤×÷μ?·§??￡??ò??3????a?°??????·§???±?￡?÷òaàíóéê?￡o?ú?aò????è??óò1¤×÷μ?·§??￡??ü·a?a?tμ?2?á??ù2??üó?·??eê?μ???o???￡?±?D?ê??í????oí?í?￥?eμ??eê?oío??e￡?ò2?íê??μ?ú?aò????è??óò1¤×÷μ?·§??￡?ê?íêè?òaò?é?μ??°ó2?ü·a?±?￡?aò????è??óòò2ê?ì?????×???1¤×÷???èμ?é??T?￡′?ía￡??ò??°??ú?aò????è??óò1¤×÷μ?·§??3??a?°??????·§???±￡?ê?òò?a?a????óò??è?ê???????óò￡?μ?ó?óú?aò????è??óò?Dμ?ò?°?3￡??μ??é?ê￡¨è?￡o???￠?????￠?????￠óí?·μè￡?ê±￡?·§??μ??÷ì?2?á?ó?ì??????í?éò??ú×?òa?ó￡???2?Dèòaó?±èì??????ü????μ??íèèo??e???ò?íèè2?Da???￡?ùò?￡??aò????è??óò?éò??μ￡??ü?12?ê????yòaò?é?μ???????￡?òò′?￡?3??ú?aò?1¤×÷???è??óòμ?·§???a?°??????·§???±???a??μ±?￡

6. ￡?425????550??,?a?°????￠???·§???±,?ò3?P￠???

·§??μ?1¤×÷???è?a425~550??￡??¨?a????￠???￡¨?ò3?PI??￡??￡P(guān)I??·§??μ??÷ì?2?á??aASTM A351±ê×??Dμ?CF8?a?ùD?μ??°????￠????Dì???????íá??ó??ê?íèè???±?￡òòPI??ê?ì??¨μ?3?o?￡??ú?aà?°üo?á?ó?????2?Da??(P)μ??????￡òò′?,è?1?1¤×÷?é?ê?a???ò????ê±,??è?ò2?éó???????WC6￡¨t?ü540??￡??òWC9(t?ü570??)￡??úo?áòóí?·ê±??è?ò2?éó???????C5(ZG1Cr5Mo)￡?μ??ú?aà?2??ü?D?ü???aPI???￡

7. ￡?550????650??,?a?°????￠ò??·§???±,?ò3?P￠ò??

·§??μ?1¤×÷???è?a550~650??￡??¨?a????￠ò??￡¨?ò3??aPII??￡??￡P(guān)II??????·§???÷òaó?óúá?óí3§μ???óí′??ˉá??ˉ×°??￡??ü°üo?ó??úèyDy??×ìμè2???μ?????3?à??í?￥?￠·§?￡P(guān)II??·§??μ??÷ì?2?á??aASTM A351±ê×??Dμ?CF8?a?ùD?μ??°????￠ò???Dì???????íá???????ˉDí?íèè???±?￡

8. ￡?650????730??,?a?°????￠ó??·§???±,?ò3?P￠ó??

·§??μ?1¤×÷???è?a650~730??￡??¨?a????￠ó??￡¨?ò3??aPIII??￡??￡P(guān)III??????·§???÷òaê?ó??úá?óí3§μ?′óDí??óí′??ˉá??ˉ×°??é??￡ PIII??????·§???÷ì?2?á??aASTM A351±ê×??Dμ?CF8M?a?ùD?μ??°????￠ó???Dì??????a??íá???????ˉDí?íèè???±?￡

9. ￡?730????816??,?a?°????￠???·§???±,?ò3?P￠???

·§??μ?1¤×÷???è?a730~816??￡??¨?a????￠???￡¨?ò3??aPIV??￡??￡??PIV??·§??μ?1¤×÷???èé??T?¨?a816??ê?òò?a·§??éè????ó?μ?1ú?êè¨ít±ê×?ASME B16.34?1á|-???èμè???Dìá1?μ?×??????è?a816??￡?áíía,1¤×÷???è3?1y816??ò?oó￡????í?ó?ü??è?á??í?ì???è??óò￡?′?ê±?eê?′|óú?üD?±?D?????,?eê?μ??é?üD?o?,??ò?3Dêü??μ?1¤×÷?1á|oí3??÷á|??±￡3?2?±?D??￡P(guān)IV??·§??μ??÷ì?2?á??aASTM A351±ê×??Dμ?CF8M?a?ùD??°????￠????Dì??????a??íá???????ˉDí?íèè???±￡?CK-20?°ASTM A182±ê×??DF310(×￠￡o???DCo?á??Y0.050%)?°F310Hμè?íèè2?Da???￡

10. ￡?816???a?°????￠???·§???±,?ò3?P￠???

·§??μ?1¤×÷???è?ú￡?816??ò?é?￡?3??a????￠???￡¨?ò3??aPV??￡??￡P(guān)V??????·§??￡¨×÷?D??ó?·§??,??·?μ÷?úDíμ?·§ààμ?·§??￡?±?D?2éó?ì?êaμ?éè??ê???￡?è?￡o3???èè3?à??òí¨???ò??à?è′μè￡?·??ü±￡?¤·§??μ??y3￡1¤×÷?￡?ùò?￡???PV??????·§??μ?1¤×÷???èé??T2?×÷1??¨￡??aê?òò?a????·§??μ?1¤×÷???è2?ê?????2?á?￡???ê?ó?ì?êaμ?éè??ê???à′?a??μ?￡???éè??ê???μ??ù±??-àíê?ò??ùμ??￡ PV??????·§???é?ù?Y??1¤×÷?é?êoí1¤×÷?1á|?°2éó?μ?ì?êaéè??·?·¨μè￡???ó?o?àíμ??￠?ü?ú×???·§??μ?2?á??￡?úPV??????·§???D￡?í¨3￡?ìμà?¤°?·§?òμ?·§μ??¤°??òμ?°?3￡??ó?ASTM A297±ê×??Dμ?HK-30￡?HK-40????o??e￡??ü???ü?ú1150??ò????1???ˉoí?1?-D???ì??D?íê′￡?μ?2??ü3Dêü3??÷oí???1??oé?￡

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