1. ASTM A671 CB65 Class 11 steel yeeb nkab yog dab tsi?
A carbon-manganese EFW yeeb nkabtsim rauqis- cov ntawv thov siab (txog 1,500 psi) thiab me ntsis qis- kev pabcuam kub, ua raws liASTM A671-25 Cov khoom siv raw khoom.
SIB CB65: Carbon -manganese steel (0.30% max C, 1.40% Mn) nrogxaiv tau Charpy kev ntsuam xyuas ntawm +32℃F/0 degree.
Chav Kawm 11: Yam tsawg kawg nkaus yield zog ntawm11 ksi (76 MPa), haum rautsis yog - tseem ceeb rau kev lag luam.
2. Cov ntawv thov ib txwm nyob rau xyoo 2025?
Kev Siv Dej: Tsawg-siab faib network.
HVAC Systems: Ductwork thiab me -corrosion ib puag ncig.
Kev siv dav dav: Tsis yog-kev thauj cov kua dej txaus ntshai (piv txwv li, cua compressed).
3. Qhov txawv ntawm qhov tseem ceeb ntawm Cov Qib Siab (piv txwv li, Chav Kawm 20)?
Lub zog: 45% qis zog tawm los ntawm Chav Kawm 20 (11 vs . 20 ksi), txwv kev siv raulow-stress systems.
Nqi: 35–40% pheej yig dua Chav Kawm 20 (2025 avg:900-900-1,300 / tuj).
Kev sim: Tsis muaj qhov yuav tsum tau kuaj xyuas tshwj tsis yog tau teev tseg.
4. Kev Ntsuas & Ua Raws Li Kev Hloov Kho (2025)
NDT: BasicHydrostatic kuaj thiab kuaj pomRaws li ASTM A671.
Traceability: TxujMill Test Reports (MTRs); digital tracking xaiv tau.
Sustainability: Sib ntsibISO 14001: 2025 Ntawv pov thawjrau kev ua raws li ib puag ncig.
5. Kev Muag Khoom & Cov Qauv
Thawj Standard: ASTM A671-25 Cov khoom siv raw khoom(Nqe 6 rau Chav Kawm 11).
Lwm txoj kev:
TS EN 10217-1 P245TR1(EU sib npaug).
JIS G3454 STPG410(Nyiv standard).
Lub Sijhawm Lead: 4-8 lub lis piam; dav muaj los ntawmntiaj teb no mills.
