ASTM A213 T11 Tubabukan ɲɛfɔli - BLOG

Fɛn dilannenw ɲɛfɔli

ASTM A213 Grade T11 ye feriti chrome-molibdɛni (Cr-Mo) tubabukan ye min tɛ sɔgɔsɔgɔ, a bɛ kɛ ni waji funteni ni gazi-gazi laminiw ye. O grade in dabɔra degun-fɛnw kama minnu bɛ se ka kɛ fanga-bɔlanw na, HRSGw, petoroli-sɛnɛfɛnw na ani funteni-falen-falen-yɔrɔw la minnu ka funteni ka bon, yɔrɔ minnu na, karɔbɔli nɛgɛ tɛ se ka oksidan kɛlɛli walima ka sɛgɛn fanga minɛ.
Octal Pipe bɛ T11 di cogo la min bɛ kɛ normalisé-ani-tempered cogo la, ni dimensionnel control ye, ni testing dafalen ye ASTM A213/A1016 ani mill certificates la, walasa a ka se ka taa ɲɛfɛ ka don boiler ni process fabrication kɔnɔ.

astm a213 t11 tubing bundles for boiler and superheater service - octal pipe

Kimikisɛw ka danfara

Fɛn	Kɔnɔnafɛn (%)	Baarakunda
C	0.05 – 0.15	A bɛ fanga ni creep resistance di, a bɛ to weldable
Mn	0.30 – 0.60	Ductility, baarakɛcogo funteni
Si	0.50 – 1.00	A bɛ oksidan kɛlɛli dɛmɛ
P	A ka dɔgɔn walima a bɛ bɛn 0,025 ma	A bɛ dan sigi bɔgɔbɔgɔli la
S	A ka dɔgɔn walima a bɛ bɛn 0,025 ma	A bɛ kɔrɔsi walasa ka gɛlɛya sɔrɔ
Cr	1.00 – 1.50	Scaling resistance bɛ sɔrɔ watara / gazi bɔlen na
Mo	0.44 – 0.65	Creep ni rupture fanga

Nin chrome–molibdène balansi in ka dɔgɔn ni T22 ye walima Cr hakɛ wɛrɛw ye minnu ka bon-, o de y’a to T11 bɛ biri ani ka welda nɔgɔya la, nka hali bi a bɛ kisi degere 500–600 baara ma.

Masinaw ka baarakɛcogo

Ta	Wajibiya	Kun
Tensile fanga	A ka bon walima a bɛ bɛn 415 MPa (60 ksi) ma .	Doni seko bɛɛ lajɛlen
Sɛnɛfɛnw sɔrɔli fanga (0,2%) .	A ka bon walima a bɛ bɛn 205 MPa (30 ksi) ma .	A bɛ bɔgɔbɔgɔli banbali bali
Janya janya	A ka bon walima a bɛ bɛn 30% ma .	A mago bɛ bending, coiling, welding na
Gɛlɛya	A ka dɔgɔn walima a bɛ bɛn 163 HBW ma	A bɛ toughness mara ka ɲɛsin thermal cycling ma

O nafaw bɛ bɛn normalisé-ani-tempered delivery condition ma, fanga ni refinɛri porozɛw bɛ min ɲɛfɔ tuma caman na.

Fɛn dilanni ni funteni furakɛli

Ni boiler tube service ye sira nafa ka bon i n’a fɔ chimie. Octal Pipe bɛ baara kɛ ni sira ye min tɛ fɛn tiɲɛ ASTM A213/A1016 kɔnɔ:

alloy billet bɛ funteni- sɔgɔ walima ka bɔ kɛnɛma walasa ka mankan dingɛ kɛ
tubabufura bɛ funteni-kurun walima nɛnɛ-a sama ka taa OD yamaruyalen na, kogo ni sanfɛla fini (a nafa ka bon funteni-falenfalen tubabukan na)
tubabukan bɛ normalize degɛrɛ 940–980 ɲɔgɔn na walasa ka feriti matiriyali nɔgɔya, ka bandi bɔ ani ka masin cogoyaw kɛ kelen ye a janya la
tubabufura bɛ sumaya degere 675–755 ɲɔgɔn na walasa ka ductility segin a cogo kɔrɔ la ani ka carbides jɛnsɛnni finman dɔ datugu a nɔ na

Nin N+T cycle in de bɛ T11 di a ka microstructure sabatilen ma: chrome bɛ se ka oxide film sirilen dɔ dilan, molibdène bɛ se k’a ka baara kɛ creep strengthening la, ani tube tɛ gɛlɛya kojugu ka weld. Funteni furakɛli kɔfɛ, tubabufura bɛ tilennen, ka sɛgɛsɛgɛli kɛ ji la, ka sɛgɛsɛgɛli kɛ ni NDE fɛɛrɛ ye min yamaruyara (eddy-current walima ultrasonic) sani u ka taamasiyɛn kɛ ani ka u pake. Senna-tɛgɛrɛ bɛɛ bɛ sɛbɛn walasa tubabukan ka se ka tugu funteni na.

Dimensions (yɔrɔ) hakɛ

Paramɛtiri	Range / kunnafoni wɛrɛw
Kɛnɛma cɛmancɛ	12,7 – 127 mm (0,5 – 5 in) .
Kogow janya	1,2 – 12 mm
Janya	Fo ka se m 12 ma; SRL / DRL / tigɛ-ka-janya
A laban fini	Plain, beveled, walima labɛnnen U-bending / finning kama
OD muɲuni	a ka ca a la ± 1% (ASTM A1016 kelen-kelen bɛɛ la) .
Kogo muɲuni	a ka ca a la ± 10% .
Tilenbaliya	a ka ca a la A ka dɔgɔn walima a bɛ bɛn milimɛtɛrɛ 0,8 ma/m

O bɛ tali kɛ bobine panneau tubes communes, superheater/reheater coils, ani refinery heater coils.

Baara kɛcogo ɲuman

Baara la T11 bɛ oksizɛni nafama kɛ ni kuromi-fɛn kelen ye, o la, tubabukan nɛgɛ bɔnɛni ni sɛgɛsɛgɛlikɛlanw jɔli-ka surunya ka tɛmɛ ni karɔbɔli nɛgɛ ye. Molibdɛni bɛ sɛgɛn ni kari sumaya, o nafa ka bon tubabukan na minnu sigilen bɛ funteni ni degun kɔrɔ lɛri ba caman kɔnɔ. Ikomi a jɔcogo ye feriti tempered ye, tubabukan bɛ daminɛ–dabila cycles muɲu HRSGw ni cogeneration iziniw kɔnɔ k’a sɔrɔ a ma bɔnɛ a tilennenya la joona kojugu. Weldaw bɛ u dafalen mara PWHT kɔfɛ ni nɛgɛ minnu bɛ se ka kɛ, olu bɛ baara kɛ ni nɛgɛw ye minnu bɛ se ka kɛ.

Aplikasi minnu bɛ kɛ

boiler jikogo, superheater, reheater ani economizer tubes minnu bɛ funteni-sɛnɛyɔrɔw la
HRSG / faralen-sikili wajibɔlanw
petoroli ni sɛnɛfɛnw falen-falen-falen-falen-minɛnw
funteni caman-funteni bɔgɔdaga-ani-tubabu funteni ɲɔgɔn falen-falen
nafamafɛnw ni baarakɛcogo siraw funtenimanw kuran ni kemikɛli yɔrɔw kɔnɔ

Sɛgɛsɛgɛli ni sɛbɛnni

Kɔrɔbɔli bɛ kɛ ka kɛɲɛ ni ASTM A213 ye ani A1016 ka sariyaw bɛɛ lajɛlen ye. O ye jiko walima eddy-sɛgɛsɛgɛli ye sisan kogo mankan, sɔgɔsɔgɔli ani gɛlɛya sɛgɛsɛgɛliw la funteni-furakɛli yɔrɔ kelen-kelen bɛɛ la, flakɛli/flaring walasa ka ductility jira, ka fara ɲɛnayeli ni hakɛ sɛgɛsɛgɛli kan. Porozɛ minnu ka QA/QC ka bon, Octal Pipe bɛ se ka ultrasonic walima radiographie sɛgɛsɛgɛliw fara u kan. Tubabukan bɛɛ bɛ dilan ni EN 10204 3.1 walima 3.2 MTC ye walasa a tigi ka se ka kemikɛli, masinw ani NDE jaabiw di ka kɛɲɛ ni funteni nimɔrɔ ye.

Mun na ASTM A213 T11 bɛ bɔ Octal Pipe la

Cr-Mo tubabukan lakika min tɛ sɔgɔsɔgɔ, o bɛ normalisé-ani-tempered cogo la, a tɛ kɛ dɔrɔn karɔbɔni jenɛriki-nɛgɛ tubabukan na
hakɛw, sɛgɛsɛgɛliw ani taamasiyɛnw bɛ bɛn fanga, pɔnpe, HRSG ani nakɔsɛnɛyɔrɔ ɲɛfɔliw ma
export-bundles labɛnnenw ni laban lakanani ye ka ɲɛsin yɔrɔjan cikanw ma
ɛntɛrinɛti dɛmɛni walasa ka T11 ni Cr-Mo hakɛw bɛn ɲɔgɔn ma (T22, A335 P11/P22) ni o yɔrɔ kelen bɛ baara kɛ ni fɛnɲɛnɛma caman ye
ɲɛ jɔcogo sɛbɛnnen fɛn-fɔlɔ ani fɛɛrɛ kɛrɛnkɛrɛnnen, walasa k’i ka siti kura dɛmɛ a ka index sɔrɔ i n’a fɔ feerekɛla ɲɛ, a tɛ kɛ jatebɔ kɔnɔkow ye

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