A335 e tloaelehileng (ASTM A335/ASME S-A335) ke tlhaloso ea machaba bakeng sa liphaephe tsa tšepe tsa ferritic alloy seamless tse sebelisoang mocheso o phahameng le maemo a khatello e phahameng. E sebelisoa haholo ho petrochemical, matla (matla a mocheso / nyutlelie), liindasteri tsa boiler le tsa ho hloekisa. Liphaephe tsa tšepe tlas'a maemo ana li na le matla a phahameng a mocheso o phahameng, khanyetso ea creep le corrosion resistance, 'me li loketse maemo a feteletseng a ho sebetsa.
Lisebelisoa tse tloaelehileng le sebopeho sa lik'hemik'hale tsa A335 standard
Lisebelisoa tsa A335 li khetholloa ka linomoro tsa "P", 'me limaraka tse fapaneng li loketse mocheso o fapaneng le libaka tse senyang:
| Kereiti | Likarolo tse ka sehloohong tsa lik'hemik'hale | Litšobotsi | Mocheso o sebetsang |
| A335 P5 | Cr 4-6%, Mo 0.45-0.65% | E hanana le kutu ea sebabole 'me e hahaba ka mocheso o mahareng | ≤650°C |
| A335 P9 | Cr 8-10%, Mo 0.9-1.1% | E na le khanyetso ea oxidation ea mocheso o phahameng le matla a batlang a le holimo | ≤650°C |
| A335 P11 | Cr 1.0-1.5%, Mo 0.44-0.65% | Weldability e ntle le matla a mocheso o mahareng | ≤550°C |
| A335 P12 | Cr 0.8-1.25%, Mo 0.44-0.65% | E ts'oanang le P11, khetho ea moruo | ≤550°C |
| A335 P22 | Cr 2.0-2.5%, Mo 0.9-1.1% | Anti-hydrogen corrosion, e sebelisoang hangata ho liboilers tsa seteishene sa matla | ≤600°C |
| A335 P91 | Cr 8-9.5%, Mo 0.85-1.05% | Matla a phahameng haholo, a ratoang bakeng sa li-unit tsa supercritical | ≤650°C |
| A335 P92 | P91 + W | Ho hanyetsa mocheso o phahameng, o loketseng li-unit tsa ultra-supercritical | ≤700°C |
Maemo a kopo ea liphaephe tsa tšepe tsa A335
1. Indasteri ea peterole
A335 P5/P9: liphaephe tse thusang ho hloekisoa, liphaephe tse nang le sebabole tse nang le mocheso o phahameng.
A335 P11/P12: liphaepha tsa mocheso, liphaephe tsa phetisetso ea mouoane oa mocheso o mahareng.
2. Indasteri ea matla (matla a mocheso / matla a nyutlelie)
A335 P22: Liphaephe tse kholo tsa mouoane le lihlooho tsa lifeme tsa setso tse fehlang matla a mocheso.
A335 P91/P92: Li-unit tsa Supercritical/ultra-supercritical, liphaephe tsa matla a nyutlelie tse nang le khatello e phahameng.
3. Li-boilers le lijana tsa khatello
A335 P91: Likarolo tsa mocheso o phahameng oa liboiler tsa sejoale-joale tse sebetsang hantle haholo.
A335 P92: Liphaephe tse hanyetsanang le mocheso o phahameng bakeng sa li-boilers tse phahameng.
U ka khetha thepa e nepahetseng ea A335 joang? Litlhoko tsa mocheso:
Litlhoko tsa mocheso:
≤550°C: P11/P12
≤650°C: P5/P9/P22/P91
≤700°C: P92
Tikoloho e senyang:
Sebaka se nang le sebabole → P5/P9
Tikoloho e senyang ea haedrojene → P22/P91
Litšenyehelo le matla:
Khetho ea moruo → P11/P12
Litlhoko tse phahameng tsa matla → P91/P92
Litekanyetso tse lekanang tsa machaba tsa liphaephe tsa tšepe tsa A335
| A335 | (EN) | (JIS) |
| P11 | 13CrMo4-5 | STPA23 |
| P22 | 10CrMo9-10 | STPA24 |
| P91 | X10CrMoVNb9-1 | STPA26 |
LBH
Q1: Phapang ke efe pakeng tsa A335 P91 le P22?
P91: Likahare tse phahameng tsa chromium le molybdenum, khanyetso e matla ea creep, e loketseng likarolo tsa supercritical.
P22: Theko e tlase, e loketseng liboilers tsa setso tsa motlakase.
Q2: Na pipe ea tšepe ea A335 e hloka phekolo ea mocheso?
Ho tloaeleha + kalafo ea ho futhumatsa hoa hlokahala, 'me P91/P92 e boetse e hloka taolo e tiileng ea sekhahla sa ho pholisa.
Q3: Na A335 P92 molemo ho feta P91?
P92 e na le khanyetso e phahameng ea mocheso (≤700 ° C) ka lebaka la ho ba teng ha tungsten (W), empa theko e boetse e phahame.
A335 standard alloy seamless tšepe pipe ke thepa ea bohlokoa tlas'a mocheso o phahameng le maemo a phahameng a khatello. Lisebelisoa tse fapaneng (tse kang P5, P9, P11, P22, P91, P92) li loketse maemo a fapaneng. Ha u khetha, ho hlokahala hore u nahane ka botlalo mocheso, ho bola, matla le lintlha tsa litšenyehelo, 'me u bue ka litekanyetso tse lekanang tsa machaba (joaloka EN, JIS).
Nako ea poso: Jun-06-2025
