Fɛɛn ɲɛfɔli
ASTM A213 Grade T11 ye feriti kromu-molibdɛn (Cr-Mo) nɛgɛ ye min tɛ nɛgɛ bɔ, a be baara kɛ ni funteni kalamanw ni gazi -yɔrɔw ye. O grade labɛnna pressure-bearing fɛnw kama barikabɔlanw na, HRSGw, petrosimiki yɛlɛmalanw ani funteni yɛlɛmayɔrɔw la minw ka karbɔni nɛgɛ tɛ se ka oksidi fanga minɛ walima ka yɛlɛma fanga minɛ.
Octal Pipe be T11 di cogoya ɲuman na, ani a be se ka sɛgɛsɛgɛri kɛ ka kɛɲɛ ni ASTM A213/A1016 ye ani ka mansin sɛbɛw dilan, o la a be se ka taga yɔrɔnin kelen ka don boon kɔnɔ ani ka baara kɛ ni dilanfɛnw ye.

Simi kɔnɔfɛnw
| Fɛn | Kɔnɔnata (%) | Ciya |
|---|---|---|
| C | 0.05 – 0.15 | A be fanga di ani ka yɛlɛmayɛlɛma, a be to ka se ka sodi |
| Mn | 0.30 – 0.60 | Ductilité, baarakɛcogo gwansan |
| Si | 0.50 – 1.00 | A be oksidi kɛlɛli dɛmɛ |
| P | A ka dɔgɔ ni 0,025 ye wala a ka kan n’o ye. | A be dan sigi nɔgɔya la |
| S | A ka dɔgɔ ni 0,025 ye wala a ka kan n’o ye. | A be kɔlɔsi ka gwɛlɛya |
| Cr | 1.00 – 1.50 | Scaling rezistansi funteni / gazi min be bɔ |
| Mo | 0.44 – 0.65 | Creep ani farali fanga |
O kɔrɔmu–molibdɛni hakɛ ka dɔgɔ ni T22 ye walima ka tɛmɛ -Cr hakɛ wɛrɛw kan, o lo kama T11 be yɛlɛma ani ka sɔgɔ nɔgɔman na, nka a bele be balo degere 500–600 baara la.
Masini kɛcogo
| Marafɛn | Wajibiya | Bilakun |
|---|---|---|
| Fanga min be se ka yɛlɛma | A ka bon ni 415 MPa (60 ksi) ye wala a ka kan n’o ye. | Doni bɛɛ hakɛ |
| Sɛnɛfɛnw sɔrɔli fanga (0,2%) | A ka bon ni 205 MPa (30 ksi) ye wala a ka kan n’o ye. | A be yɛlɛmani banbali bali |
| Janyali | A ka ca ni 30% ye wala a ka kan n’o ye | A mako be yen ka kuru, ka yɛlɛma, ka soudure kɛ |
| Janya | A ka dɔgɔ ni 163 HBW ye wala a ka kan n’o ye . | A be fanga mara nɛgɛso funteni kama |
O sɔngɔw be bɛn ni normalisé-ani-tempered delivery condition ye min be to ka fanga ani sɛnɛfɛnw porozew yira.
Dilanni ani funteni furakɛli
Ka ɲɛsin boili baara ma, sira kɔrɔtanin lo i n’a fɔ kemikɛli. Octal tiyo be baara kɛ ni sira ye min tɛ se ka tiɲɛ ASTM A213/A1016 kɔnɔ:
- alloy billet be kalaya-sɔgɔ walima ka bɔ ka kɛ mankan dingɛ ye
- nɛgɛdaga be kalaya-a yɛlɛma walima a be suma -a be sama ka taga OD, kogo ani yɔrɔ min labɛnna (o nafa ka bon nɛgɛdaga yɛlɛmalanw ma)
- 940–980 degere ɲɔgɔn na walisa ka feriti matirikisi saniya, ka bandi bɔ ani ka mekaniki sifaw kɛ kelen ye a janya bɛɛ la .
- 675–755 degere ɲɔgɔn na walisa ka ductility lasegin ani ka carbides jɛnsɛnnin ɲuman dɔ datugu a nɔɔ na .
O N+T yɛlɛmani lo be T11 ka mikrostrukturu basiginin di: kɔrɔmu be se ka filimu oksidi sɛgɛsɛgɛnin dɔ dilan, molibdɛn be se k’a ka baara kɛ ka yɛlɛmayɛlɛma fanga bonya, ani nɛgɛjuru tɛ gɛlɛya kojugu ka sɔgɔ. Funteni furakɛli kɔ, u be tɔrɔsiw tilen, k’u sɛgɛsɛgɛ jii la ani k’u sɛgɛsɛgɛ ni NDE fɛɛrɛ ye min komandira (eddy-current wala ultrasonic) sanni k’u tagamasiɲɛw kɛ ani k’u ladon. O tagamacogo kelen kelen bɛɛ sɛbɛra walisa ka se ka tubo sɔrɔ ka kɔsegi funteni ma.
Janya hakɛ
| Paramɛtiri | A yɔrɔ / kunnafoni |
|---|---|
| Kɛnɛma diamɛtiri | 12,7 - 127 milimɛtiri (0,5 - 5 in) |
| Kogo bonya | 1,2 – milimɛtiri 12 |
| Janya | Ka se m 12 ma; SRL / DRL / tigɛ-ka-janya |
| Ban laban | A gwɛnin lo, a yɛlɛmana, walima a labɛnnin lo ka U-kuru / yɛlɛma |
| OD muɲuli | a ka ca a la ± 1% (ASTM A1016 kelen kelen bɛɛ la) |
| Kogo muɲuli | a ka ca a la ± 10% |
| Tilenninya | a ka ca a la, a ka dɔgɔ ni 0,8 mm/m ye wala a ka kan n’o ye |
O be kuma boonw ka boonw kɔnɔ, superheater/reheater boonw ani boonw minw be boonw yɛlɛma.
Baarakɛcogo
Operasiyɔn na T11 be oksidi kelen dilan min be ni kɔrɔmu ye, o la, nɛgɛ tununi ani nɛgɛ min be yɛlɛma, o be sumaya ka tɛmɛ nɛgɛ karbɔni kan. Molibdɛni be yɛlɛmayɛlɛma ani ka cili sumaya, o min kɔrɔtanin lo boonw fɛ minw be sigi funteni ni degun kɔrɔ lɛrɛ waa caaman kɔnɔ. Komi a lɔcogo ye feriti ye min be yɛlɛmayɛlɛma, o tubo be se ka muɲu daminɛ–lalɔ yɛlɛmaniw na HRSGw ni kogenerasiyɔn iziniw kɔnɔ k’a sɔrɔ a ma tilenninya bɔnɛ joona joona. Soudure be tilenninya mara PWHT kɔ n’u be baara kɛ ni nɛgɛw ye minw be se ka mɔgɔw fa.
Aplikasiyɔnw
- jii kogo, kalayalanba, kalayalan ani wariko nɛgɛjuruw funtenibɔyɔrɔw la
- HRSG / faranin-sikili funtenibɔlanw
- petɔrɔli ani fɛnɲɛnamafagalanw
- yɔrɔ min ka funteni be yɛlɛma -
- yɔrɔ gwansanw ani baarakɛcogo sira minw be fanga ni kemikalifɛnw kɔnɔ
Sɛgɛsɛgɛri ani sɛbɛnw
Kɔrɔbɔli be kɛ ka kɛɲɛ ni ASTM A213 ani A1016 ka sariyaw ye. O la, hydrostatique walima eddy{3}}current sɛgɛsɛgɛli be kɛ kogow ka mankan kama, sɛgɛsɛgɛli minw be kɛ ka yɛlɛma ani u ka gɛlɛya be se ka sɛgɛsɛgɛ funteni-furakɛli yɔrɔ kelen kelen bɛɛ la, ka pɛtɛ/pɛrɛn walisa ka ductilité yira, ka fara o kan, sɛgɛsɛgɛri min be kɛ ni ɲɛɛ ani janya ye. Poroze minw ka QA/QC ka bon, Octal Pipe be se ka sɛgɛsɛgɛri kɛ ni ultrason wala radiyo ye. Tubabuw bɛɛ be di ni EN 10204 3.1 walima 3.2 MTCs ye walisa a tigi ka se ka kemikali, mekaniki ani NDE jaabiw sɛbɛ ka kɛɲɛ ni funteni hakɛ ye.
Mun na ASTM A213 T11 bɔra yɔrɔ min na?
- Cr-Mo nɛgɛdaga yɛrɛ yɛrɛ la min be cogoya ɲuman na -ani -a ka ɲi, a ma kɛ karbɔni dɔrɔn ye -nɛgɛ tubo la
- janya, kɔrɔbɔliw ani tagamasiɲɛ minw be bɛn ni fanga, nɛgɛdaga, HRSG ani nɛgɛdaga dantigɛli ye
- fɛnw labɔli -labɛnnin ni lakanali laban ye ka taga yɔrɔjan- ci
- lɔnniya dɛmɛ ka T11 ni Cr-Mo ɲɔgɔnna (T22, A335 P11/P22) bɛn n’o yɔrɔ kelen be baara kɛ ni nɛgɛ caman ye .
- ɲɛɛ labɛnnin sɛbɛninfɛn-fɔlɔ ani fɛɛrɛko kɛrɛnkɛrɛnnin, k’i ka site web kura dɛmɛ ka kɛ indekisi ye i n’a fɔ feerekɛla ɲɛɛ, i n’a fɔ sɛbɛnin kɔnɔkow tɛ
ɲiningaliw

Ɲiningali fɔlɔ: ASTM A213 T11 ka boonw be baara kɛ ni mun lo ye?
Ɲiningali 2nan: "1,25Cr-0,5Mo" kɔrɔ ye mun ye T11 ka tubo la?
Ɲiningali 3nan: Yala ASME SA213 T11 ni ASTM T11 ye kelen ye wa?
Q4: Tuma juman lo n’ ka ɲi ka T11 sugandi T22 tubo nɔɔ na?
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