### ** {{1. Dab tsi yog A671 yeeb nkab ua los ntawm? **
** AVTM A671 YEEB ** Yog Siv Los Ntawm ** Daim Phiaj Hlau Siab Hlau ** Siv ** Hluav Taws Xob Hluav Taws Xob Siv Nrog Ua Si ({{} tus cim tseem ceeb muaj:
- ** Cov qhab nia cov qib **: Tsim los ntawm cov lis dej num zoo li "CC60", qhov twg "CC" qhia txog qhov muaj zog ntawm chav kawm (60 ksi lossis ~ 415 mpa).
- ** Cov tshuaj chemistry **: Cov roj av tsis tshua muaj roj (E {{}}}}}}}}}
- ** Kev tsim khoom **: Cov kav dej yog ** ib ob-tog, tag nrho cov kev txhim kho (CL32) ** ** Kev nyuaj siab (CL32) **
- ** Cov ntawv thov **: Tsim rau ** Tsawg-kub / e {}}}}}
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### ** {{2. Dab tsi yog qhov sib txawv ntawm ASTM thiab ASME YEES? **
** ASTM ** THIAB ** ** ASME ** Cov Qauv Sib Txawv Sib Txawv thiab Daim Ntawv Thov:
- ** ASTTM (American Society for Soj Ntsuam thiab Cov Khoom Siv) **: Cov Qauv Siv Tenserm (}}}}} {.
- ** ASME (American Society of Neeg Kho Tshuab engine) ** (e {{. g ., txhim kho NDE) rau kev nyab xeeb cov ntawv thov.
- ** ETTM cov khoom siv "Cov khoom xyaw," thaum cov ntaub ntawv ASME, thiab tshawb xyuas ** rau cov khoom siv boilers (sa6)}
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### ** {{3. Dab tsi yog qhov sib txawv ntawm WCC thiab LCC Carbon Steel? **
** WCC ** thiab ** LCC ** yog ob qho tib si ntawm cov hlau kis tab sis sib txawv hauv qhov kub kom haum:
- ** WCC (qib qib) **: Siv rau ** AGNIENT ua kom muaj zog tshaj plaws (ntau dua los yog sib npaug
- ** LCC (Qib tsawg-qib qis) **: Kev muab kev cuam tshuam rau **}}}}}}} Kev cuam tshuam los ntawm kev ua tiav micrtructure los ntawm kev coj ua thiab tswj mn / ni cov ntsiab lus .
- ** COV APPALLAYS **: WCC Suecting Li Qub / Twj Rau Dej / Chav; LCC yog qhov tseem ceeb rau LNG, Cryogenic cia, lossis cov txheej txheem txias piping .
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### ** {{4. Dab tsi yog qhov sib txawv ntawm EFW thiab HFW YEEB? **
Ob qho tib si yog hluav taws xob-welded cov txheej txheem tab sis muaj kev kub siab rau cov ntsiab cai sib txawv:
- ** EFW (hluav taws xob fusion vuam) **: Ib qeb hluav taws xob dav dav uas muaj rhaub dej) {}}}}} {}
- ** HFW (High-zaus Vuam) **: Ib tug subtype ntawm ERW (hluav taws xob tiv thaiv vuam) {}}} zaus tam sim no ** Tshaj tawm:
- ** Cov nyhuv tawv **: Tam sim no pom ntawm cov hlau saum npoo .
- ** Cov nyhuv sib thooj **: Tam sim no ntws los ntawm ntug kev sib koom ua ke .
Qhov no tso cai rau ntawm no pub dawb **, ceev ceev fusion ntawm cov npoo ntawm cov thoob si diameters (e}} cov roj tov) {}
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### ** {{5. Dab tsi yog A671 CC60 22 cov khoom? **
Qhov no tsim qauv no ** Cov Qib Kawm Tshwj Xeeb / Chav Kawm Nyob Hauv Astm A671 **:
- ** CC60 **: Qhia cov hauv paus steel phaj yog ** t}}}}, (cog tseg rau 220 mpa, MPa) {{7} {}
- ** CL22 **: Qhia meej ** Kev ntxhov siab-relieved cua sov ** (post-weld cua sov kom txo cov microstructure) .
- ** COV APPLAYS **: SIV RAU ** QHOV CHAW TSIS TAU, PETRO LUB CEV KHIB ** (E {}} {}} ni1 / W506NN Electrodes) Tiv Thaiv tawg thiab tswj {{{{}}℃todness.
Rau kev tshawb fawb tob, sab laj om671 / A671m-16} lossis semme ntu VIII rau kev cai fabrication {}}
