1. ASTM A671 CA55 Chav Kawm 73 yog dab tsi?
Txhais: Qhov tseeb siab -tierhluav taws xob-fusion-welded (EFW) yeeb nkabRaws li ASTM A671-25, tsim rauultra-siab-siab (UHP) thiab kev pabcuam cryogenic(hauv qab-75 ° F / -59 ° C).
Txhim kho qhov tseem ceeb: Ua ntej kom ua tiav73 ksi (503 MPa) yield zogthaum tuav CA55's weldability (max 0.23% carbon).
2025 Innovation: suav nrogmicro-alloyed Nb-V-Tirau grain refinement, ua raws li tshiabASTM A20 / A20M-25kev hloov kho.
2. Vim Li Cas Xaiv Chav Kawm 73 hauv 2025?
Kev hloov hluav taws xob: Certified rau100% hydrogen thauj(ibASME B31.12-2025).
Nqi Efficiency: 12-15% poob phausvs. Chav Kawm 72, txo cov nqi logistics.
Ntiaj teb no tej yaam num: Nyiam rauArctic LNG terminalsthiabModular CCS (Carbon Capture & Cia) cov kav dej.
3. Tseem ceeb Technical Specifications
Fabrication:
Laser -arc hybrid vuam(tshiabISO 15614-15: 2025kev tsim nyog).
Yuav tsum tauob PWHTtxhawm rau txo kev ntxhov siab hauv kev siv UHP.
Kev sim:
CTOD + Charpy V-ntuntawm -60 ° F / -51 ° C.
AI-tsav theem-array UTrau lub sijhawm tiag tiag - weld saib xyuas.
4. 2025 Cov Qauv & Ua Raws Cai
Txhim kho Codes:
API 5L-2025 Annex Hrau kev pabcuam qaub (H₂S tsis kam).
ISO 45001: 2025 Daim Ntawv Pov Thawjrau zeb kev ruaj ntseg raws tu qauv.
Traceability: Digital MTRs nrogNFT-raws li authentication(patent-tseem tos).
5. Kev Muag Khoom & Kev Lag Luam Trends (Q4 2025)
Lub Sijhawm Lead: 20-24 lub lis piamvim qhov kev sim nruj.
Nqe Benchmark: 4,200–4,200–4,600/ton(FOB Rotterdam, suav nrog cov se carbon).
Lwm txoj kev: TS EN 10217-6 P500NH(EU) lubJIS G3460 STPA27(Asia), tab sis xav tau kev pom zoo ntxiv.
