Ohun elo Akopọ
ASTM A335 ite P11 je ti awọnCr alloy kekere - Idile irin Mo (1–1.5% Cr, 0.5% Mo)atunse pataki fun lilo ninuga -iwọn otutu ati giga{1}} awọn ọna ṣiṣe gbigbona titẹ.O ṣe aṣoju iwọntunwọnsi laarin agbara ẹrọ, resistance ifoyina, ati irọrun iṣelọpọ -apẹrẹ fun awọn paati gẹgẹbi awọn coils superheater, awọn akọle titẹ, ati awọn laini gbigbe ọkọ. Lati kan metallurgical standpoint, awọnferritic-tempered microstructureti P11 ṣe ẹya pipinka itanran ti awọn carbides (eyiti o jẹ pataki M₂₃C₆ ati M₆C), eyiti o mu ilọsiwaju rẹ pọ si ni pataki.nrakò-igbesi aye ru ati iduroṣinṣin iwọn.
Chromium nse igbega aIwọn ohun elo afẹfẹ ipon (Cr₂O₃)didasilẹ, idabobo lodi si igbelosoke ati ifoyina soke si iwọn 600 (1110 iwọn F), lakoko ti molybdenum ṣe okunkun lattice ferrite ati fa fifalẹ yiyọ kuro.
Papọ, awọn eroja alloying wọnyi pese:
- Gun -irako resistancelabẹ fifuye idaduro ati iwọn otutu.
- Ipilẹṣẹ ohun elo afẹfẹ iduroṣinṣin ti n ṣe aabo aabo dada ati ihuwasi ipata asọtẹlẹ.
- O tayọweldabilityati ifaragba kekere si embrittlement lẹhin gigun kẹkẹ gbona.
- Awọn ipele erogba iṣakoso ti o ṣetọju toughness ati idilọwọ sisọ ọkà.
Nitori iduroṣinṣin irin-irin yii, ASTM A335 P11 jẹ ọkan ninu awọn ohun elo ti o wọpọ julọ fun.igbomikana Falopiani, superheaters, ati ilana fifi ọpani agbara iran ati refinery iṣẹ.
Kemikali ati Mechanical Properties
| Eroja | % Ibiti | Iṣe akọkọ |
|---|---|---|
| Erogba (C) | 0.05 – 0.15 | Ṣe alekun agbara ati resistance ti nrakò |
| Manganese (Mn) | 0.30 – 0.60 | Mu gbona workability ati ductility |
| Silikoni (Si) | 0.50 – 1.00 | Mu ifoyina resistance |
| Fọsifọru (P) | Kere ju tabi dọgba si 0.025 | Awọn iṣakoso brittleness |
| Efin (S) | Kere ju tabi dọgba si 0.025 | Eedi ẹrọ |
| Chromium (Kr) | 1.00 – 1.50 | Fọọmu aabo afẹfẹ fiimu |
| Molybdenum (Mo) | 0.44 – 0.65 | Ṣe ilọsiwaju agbara iwọn otutu giga{{0} |
Darí awọn ibeere
Fifẹ Ti o tobi ju tabi dọgba si 415 MPa • Imujade Ti o tobi ju tabi dọgba si 205 MPa • Ilọsiwaju Ti o tobi ju tabi dọgba si 30 % • Lile Kere tabi dọgba si 163 HBW
Ṣiṣejade & Itọju Ooru
Awọn paipu ASTM A335 P11 jẹ iṣelọpọ nipasẹiran gbona extrusion tabi tutu iyaworan, aridaju isokan microstructure ati kongẹ onisẹpo Iṣakoso.
Igbesẹ kọọkan ti ilana iṣelọpọ jẹ abojuto ni pẹkipẹki lati ṣetọju aitasera irin ati dinku awọn abawọn inu.
Ṣiṣejade & Ilana Ilana
Billet Alapapo & Lilu– Alloy Billlets ti wa ni kikan si 1100-1150 iwọn ati ki o gun lilo awọn ọna Rotari lati dagba kan ṣofo ikarahun pẹlu aṣọ ọkà sisan.
Gbona tabi Tutu Ipari- Awọn paipu ti yiyi tabi fa si sisanra ogiri ikẹhin, atẹle nipasẹ itutu afẹfẹ tabi isọdọtun agbedemeji.
Iṣe deede (diẹdi 940-980)- Ṣe atunṣe awọn irugbin ferritic, tu awọn carbides ti o ya sọtọ, ati imudara iṣọkan agbara.
Iwọn otutu (675-755 iwọn)- Ṣe igbasilẹ awọn aapọn inu, ṣe atunṣe ductility, ati ṣeduro mofoloji carbide fun resistance ti nrakò.
Ayewo & Igbeyewo– Pẹlu ultrasonic tabi eddy - NDT lọwọlọwọ, awọn idanwo titẹ hydrostatic, ijẹrisi lile, ati wiwọn iwọn.
Ilọpo meji {{0} itọju igbona ipele n ṣe agbejade aitanran{0}}ferrite ọkà{1}}matrix carbideti o koju ijakadi ati ṣetọju agbara ẹrọ lakoko iṣẹ pipẹ-.
Fun awọn ọna ṣiṣe weld, firanṣẹ - itọju igbona weld (PWHT) ni idanilojumicrostructural atunse ati hydrogen wahala iderun, pataki fun ailewu giga -iwọn otutu isẹ.
Onisẹpo Ibiti
| Paramita | Aṣoju Ibiti |
|---|---|
| Ita Opin | 12.7 – 610 mm (½ – 24 in) |
| Sisanra Odi | 1.2 - 100 mm |
| Gigun | Titi di 12 m (SRL / DRL / ipari gige) |
| Ifarada OD | ± 1 % |
| Ifarada WT | ± 10 % |
| Titọ | Kere ju tabi dogba si 0.8 mm / m |
Wa ninuitele, beveled, tabi asapo parigẹgẹ bi fifi sori awọn ibeere.
Ga-Iṣe iwọn otutu & Awọn ohun elo
Ni awọn iwọn otutu ti n ṣiṣẹ600 iwọn, ASTM A335 P11 ṣe afihan iwọntunwọnsi alailẹgbẹ laarinresistance ifoyina, imuduro gbona, ati idaduro ẹrọ.
Ipilẹṣẹ chromium ti nlọsiwaju{0} Layer oxide ọlọrọ dinku idinku ati ipadanu irin lakoko ifihan gigun, nigbati molybdenum ṣe alabapin siirako agbara idaduro ati resistance to microvoid coalescence.
Yi alloy ṣe Iyatọ daradara ni awọn agbegbe koko ọrọ siGigun kẹkẹ gbigbona, ifoyina nya si, ati awọn iyipada titẹ, mimu mejeeji toughness ati weld iyege.
Awọn anfani iṣẹ
- Idaduro Agbara ti nrakò:Igbẹkẹle ti o gbẹkẹle ati resistance rupture lori ẹgbẹẹgbẹrun awọn wakati iṣẹ.
- Atako Irẹwẹsi Gbona:Ti o dara -Mikirostructure ti ọkà n dinku yiya lati imugboroja - awọn iyipo ikọlu.
- Imugboroosi Gbona Kekere:Iduroṣinṣin onisẹpo ṣe itọju titete weld ni awọn eto fifin eekanna.
- Idabobo Oju-aye:Fiimu ohun elo afẹfẹ iduroṣinṣin ṣe idaniloju ipata kekere ati awọn aaye arin ayewo ti o gbooro.
Awọn ohun elo
- Ipilẹ agbara:Awọn tubes igbomikana, awọn coils superheater, awọn akọle atungbona.
- Awọn atunmọ & Awọn ohun ọgbin Kemikali:Ilana ati gbigbe paipu, awọn tubes reformer.
- Awọn Laini Ilana Iṣẹ:Ọ̀pọ̀lọpọ̀ àtẹ̀jáde àti àwọn ọ̀nà omi ìfúnnisí gíga-.
- Awọn ohun elo titẹ:Fun iṣẹ pipẹ - labẹ iwọn otutu ati gigun kẹkẹ wahala.
Ayewo, Ijẹrisi & Ipese
Gbogbo awọn paipu P11 ni idanwo ati ifọwọsi ni ibamu siASTM A335 / A999atiASME SA335 awọn ajohunše.
Ifijiṣẹ kọọkan wa pẹluAwọn iwe-ẹri Idanwo Mill (EN 10204 3.1 / 3.2), aridaju pipe kakiri ati ibamu.
Awọn ilana idanwo pẹlu:
- Ultrasonic tabi hydrostatic ayewo fun ohun odi.
- Fifẹ, lile, fifẹ, ati ijẹrisi atunse.
- Iyan redio tabi idanwo ipa bi fun sipesifikesonu akanṣe.
Octal Pipe peseokeerẹ QA / QC support, iwe funafijẹẹri ilana alurinmorin (WPS/PQR), ati awọn eekaderi agbaye lati rii daju ifijiṣẹ igbẹkẹle fun EPC ati awọn iṣẹ agbara ni kariaye.
FAQ
Q1: Kini ASTM A335 P22 (ASME SA335 P22) paipu ti a lo fun?
Q2: Kini "2.25Cr-1Mo" tumo si fun P22 chrome moly pipe?
Q3: Iru itọju ooru wo ni a nilo fun ASTM A335 P22 paipu ailopin?
Q4: Nigbawo ni MO yẹ ki Emi yan P22 dipo P11 tabi P91?
Q5: Kini MO le beere lati rii daju didara pipe P22 ṣaaju rira?
A5:EN 10204 3.1/3.2 MTC pẹlu itọpa igbona, awọn abajade ẹrọ / kemistri, lile, ati idanwo hydrostatic tabi UT gẹgẹbi pato.
Awọn iwe-ẹri
Iwe-ẹri CE
ISO 9001 Iwe-ẹri
API Q1 Iwe-ẹri
Iwe-ẹri ABS
Iwe-ẹri AP-5L
API-5CT Iwe-ẹri
