ASTM A335 P5 n-gang n-gang n-gang n-gang pipe

ASTM A335 Grade P5 gaw, n-gun ja ai-hpyen n-gun hte n-gun n-gun hpe hkam sharang lu na matu yaw shada ai ferritic chromium–molybdenum n-gun n-gun rawng ai n-gang pipe re. Chromium gaw 4–6% lapran hta rai nna, molybdenum gaw 0.45–0.65% grup yin hta rai nna, P5 gaw oxidation hpe ninghkap lu ai atsam, n-gun n-gun, hte weldable ni hpe akyu rawng ai hku hpawng de ya lu ai. Ndai lam gaw, carbon steel grai lawan ai hku n-gun yawm mat ai (sh) n-gun yawm mat ai boiler hte steam line ni, wan sau htu ai hka htung ni a matu, reformer hte hot process line ni a matu tatut galaw mai ai lata la ai lam langai byin shangun ai. Dai majaw, n-gun n rawng ai hte n-gun rawng ai masa hta jaw ai shaloi, P5 gaw aten galu bungli galaw ai aten laman, dimensional stability hte mechanical kam hpa mai ai lam hpe makawp maga ya ai.

Ndai alloy balance gaw P22/P91 hta npu ai majaw, weld galaw na matu hte PWHT de loi ai, raitim, npu-Cr grade ni hta grau kaja ai oxidation hpe naw hkang lu ai.

Ndai manu ni gaw ASTM A335 hta ra ai normalized-and-tempered htaw sa ai masa hte maren rai nga ai.

P5 hpe galaw shapraw nna, katsi ai shara hta aten galu-bungli galaw lu na matu, katsi ai-atsawm sha galaw ra ai. Octal Pipe gaw san seng ai Cr-Mo billets kaw nna hpang nna, n-gun n rawng ai lam hpe lang ai. Billets ni hpe katsi shangun nna, hka htung ni byin hkra htu nna, katsi ai-htu ai (sh) katsi ai-htu nna, masat da ai shinggan diameter hte bunghku n-gun hpe htu ai. Hpang jahtum, pipe ni hpe 900–950℃daram hta normalize galaw nna, ferritic matrix hpe jasan jaseng ya ai, n bung ai carbides ni hpe hka ja kau ya ai hte n-gun ni hpe yeng seng kau ya ai. Hpang na 675-750℃daram hta n-gun jat ai lahkam gaw ductility hpe bai gram lajang ya nna, ngang grin ai n-gun jat ai ferrite–carbide hkrang hpe gram lajang ya ai. Ndai lahkawng-stage thermal cycle gaw P5 hpe shi a creep hpe ninghkap lu ai atsam hte oxidation hpe n-gun jaw ya ai.

Hka lum ai hku galaw ngut ai hpang, pipe langai hpra hpe hydrostatic chyam dinglik ai lam, shadawn shadang jep joi ai lam hte -hten run ai lam n nga ai jep joi ai lam (ultrasonic or eddy current hpe matsun da ai hte maren) galaw ai. Pipe ni hpe normalized hte tempered masa hta, nbung hpe tup hkrak hkan tam lu ai (EN 10204 3.1 or 3.2) hte jaw ya ai, dai gaw wan hte wan sau htu shapraw ai bungli masing ni a matu ahkyak ai.

Ndai ginra gaw, lapran tsang-bore steam line ni hte kaba ai hka htung/hpaji masa baw ni hpe shinggrup da ai.

565℃(1050℃F) daram du hkra galaw ai nbung katsi ai shara hta, P5 gaw n-gun ja ai chromium-law ai oxide hpe shabyin ya nna, n-gun ja ai n-gun hpe shayawm ya nna, n-gun hpe shayawm ya ai. Molybdenum gaw ferritic matrix hpe n-gun shaja ya ai majaw, n-gun n rawng ai carbon n-gang hta grau nna n-gun n rawng ai hku byin wa ai. Tempered microstructure gaw thermal cycling hte ntsa lam hten za ai lam hpe mung ninghkap lu ai majaw, nbung laru htawt sit ai ntsa lam hte bunghku n-gun hpe jep joi ai lam lapran aten laman hta grau nna tau hkrau chye lu ai hku naw nga nga ai. N-gun grau ja ai (sh) grau n-gun ja ai n-gun ra ai application ni a matu, engineer ni gaw P11 (sh) P22 de htawt mai ai, raitim, oxidation-grai ahkyak ai, n-gun n-gun n-rawng ai -n-gun n-rawng ai service a matu, P5 gaw manu jahpu-htuk manu ai lata la ai lam law law nga ai.

N-gun hte wan wut ai ladat: wan n-gun line ni, wan wut ai baw ni, nbung n-gun kaba ai hte wan wut ai coil ni gaw lapran tsang nbung katsi ai band hta

Hka ja ai lam hte sau jak rung ni: wan wut ai hte gram lajang ai hka htung ni, katsi ai htawt sit ai lam ni, wan hkru ai hte karum shingtau ai baw ni

Tsi mawan hte nhprang dat htu ai jak ni: n-gun ja ai n-gun galai shai ai jak ni, reactor hte process manifolds ni

Sau hte wan sau galaw ai shara ni: Cr-Mo pipe hpe masat da ai nbung n-gun bang ai hte katsi ai galaw ai ladat ni

Cr-Mo masat masa ni hte shingdaw yu ai

Ndai lam gaw ASTM A335 grade law law hpe ahkang jaw ai shaloi, project engineer ni hpe jaw ai alloy hpe lata la na matu karum ya ai.

Octal Pipe gaw ASTM A335 hte ASTM A999 ra sharawng ai lam ni hte maren chyam dinglik ai lam galaw ai. Ndai hta hydrostatic chyam dinglik ai lam, pipe hkum hkrang hte jahtum ni a NDT, n-gun hte ngang kang ai lam hpe jep chyoi ai lam, ductility hpe kam na matu flattening/flaring chyam dinglik ai lam ni lawm ai. Project masat masa hta grau tsaw ai jep joi ai lam hpe tsun ai shaloi, Impact (sh) radiographic chyam dinglik ai lam hpe jat bang mai ai. Chyam dinglik ai mahtai yawng hpe mill chyam dinglik ai laika ni hta shingdaw nna, pipe ni hpe hkum tsup ai hku chye na matu masat da ai.

ASTM/ASME A335 P5 n-gun n rawng ai pipe hpe n-gun rawng ai hte n-gun rawng ai masa hta jaw ya ai

Hkum tsup ai shadawn shadang, jak rung hte NDT jahpan ni gaw n-gun, wan sau htu shapraw ai hte tsi mawan bungli masing ni a matu htuk manu ai

Export-jin jin rai sai, jahtum makawp maga ai hte masat da ai

N bung ai nbung laru ginra ni nga ai pipeline hte boiler system ni a matu makau grup yin na grade (P11, P22) ni hpe jaw ya lu ai atsam

Web shapraw ai hte tam ai indexing galaw na matu htap htuk ai hpaji masa hku nna, arung arai langai hta ka da ai lam ni hte masat da ai lam ni-shawng nnan

Ya matut mahkai mai ai

FAQ

 

 

Q1: ASTM A335 P5 pipe hpe hpa a matu lang ai kun?

A1:N-gun ja ai ferritic alloy steel pipe gaw, n-gun ja ai -n-gun ja ai, n-gun ja ai -hpyen n-gun ja ai shara ni, wan jak ni, hte galaw ai shara ni hta galaw na matu re.

Q2: P5 chrome moly pipe a matu "5Cr-0.5Mo" ngu ai lachyum gaw hpa rai ta?

A2:Dai gaw, oxidation hpe ninghkap lu ai atsam hte n-gun ja ai-n-gun hpe jat ya ai alloy design re.

Q3: ASTM A335 P5 hte maren sha re ai welded-pipe gaw hpa rai ta?

A3:ASTM A691 5CR gaw, htuk manu ai plate kaw na galaw ai chrome-moly pipe hpe shinggrup da ai.

Q4: P5 vs P9 vs P11 vs P22 hpe gara hku lata na kun?

A4:Hpa majaw nga yang, n-gun ja ai n-gun, oxidation/scaling n-gun, hte project spec-P5 hpe grau katsi ai magam bungli a matu Cr grau law ai shaloi law law lang lata ai.

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