1. ASTM A671 CJB115 Class 12 steel yeeb nkab yog dab tsi?
Teb:
ASTM A671 CJB115 Chav Kawm 12 yog ib qhohluav taws xob-fusion-welded (EFW) carbon steel yeeb nkabtsim raunruab nrab-siab kev siv tshuab(feem ntau ua haujlwm siab tshaj -20℃F / -29 degree). Lub npe "Class 12" qhia tias aYam tsawg kawg nkaus lub zog ntawm 12 ksi (83 MPa), nyob nruab nrab ntawm qhov kev ntsuas siab nruab nrab thiab nruab nrab hauv CJB115 series.
2. Cov ntsiab lus tseem ceeb thiab cov khoom siv?
Teb:
Khoom Qib:CJB115 carbon steel (cov ntsiab lus carbon ntau dua li qib CJA)
Yield zog:Ntau dua lossis sib npaug rau 12 ksi (83 MPa)
Tensile zog:55-75 ksi (379-517 MPa)
Impact Test:Tsis tas yuav tsum yog tshwj xeeb rau cov ntawv thov tshwj xeeb
Tshuaj muaj pes tsawg leeg:
Carbon (C): Tsawg dua lossis sib npaug li 0.35%
Manganese (Mn): Tsawg dua lossis sib npaug li 1.35%
Phosphorus / Sulfur (P / S): Tsawg dua lossis sib npaug li 0.035%
3. Cov ntawv thov kev lag luam zoo li cas?
Teb:
Tsawg- mus rau - nruab nrab siab siab thauj kua(dej, roj, ncu)
Cov txheej txheem piping systemsnyob rau hauv fais fab nroj tsuag thiab factories
Cov txheej txheem kev lag luamqhov twg yuav tsum muaj zog me ntsis
4. Nws zoo li cas rau cov chav kawm uas nyob ib sab?
Teb:
| Chav kawm | Yield zog | Hom Siv Case |
|---|---|---|
| 10 | 10 ksg | Basic low -siab tshuab |
| 12 | 12 ksg | Nruab nrab -siab industrial |
| 15 | 15 ksg | Siab dua - cov ntawv thov siab |
5. Fabrication thiab kev tswj kom zoo?
Teb:
Vuam: Standard procedures with optional preheat for thickness >1" (25.4 hli)
Kev sim:Hydrostatic xeem ntawm 1.5x tsim siab (yuav tsum tau)
Kev tsim:Txias dabtsi yog khoov pub nrog txoj kab uas hla
Kev tshuaj xyuas:Kev kuaj pom thiab qhov ntev ntawm ASTM A671
