ASTM A335 P22 tuyo (tuyo chrome moly)

Background Ingénieur

Ci biir asiye yuñ defaree Cr-Mo,ASTM A335 Njàngat P22nekk na benn ci pexe yi gëna am solo ngirtuyo yu am presioŋ bu kawe ak tàngoor bu kawe.
Dafay boole2.25% kromak1% molibdèn, defar benn matrix alloy bu mëna xeex creep, oxidation, ak carburisation ci diiru exposition bu yàgg ci tàngoor yu yegg ba620 degre (1150 degre F).

Mbir mi yàgg naa nekkfasu liggéey ci defar kuuraŋ, raffinerie, ak sistemu tuyo petrochimique, di dindi bërëb bi am ci digganté grade yu gëna suufe yu melni P11 ak aleage ferritique -martensitic yu xarañ yu melni P91.
Balance bimu am ci wóor mekanik, defar, ak stabilite bu yàgg moo tax mu baax ciboppu vapër, tub rechauffage, ak liiñ yuy joxe tàngoor wu kawe.

Design alloy ak fundamental ci metallurgie

Grade P22 bokk na cixeetu ferritikde acier. Li muy def mingi aju ci microstructure buñ defaree ci anam wu jaar yoon, boole ciferrite tempré et carbures de chrome-molibdène (M23C6, M6C).

Ëlëmu aleage	Mbinde (%)	Rol ci performance
Cr (Krom)	1.90 – 2.60	Dafay defar ab couche oxide buy muur ba noppi gëna baaxal bañaale
Mo (Molibdèn)	0.87 – 1.13	Dafay joxe doole -solution bu dëgër ak baña dem
C (Karbon)	0.05 – 0.15	Dafay saytu dëgëraay bi ak dëgëraay bi
Mn (Mangan)	0.30 – 0.60	Yokkatal soudability ak dëgër
Si (Silisium)	0.50 – 1.00	Dafay gëna mëna xeex oxidation ak corrosion
P / S	Lu néew wala lu tollu ci 0.025	Dafay tëye ductilité bi te moytu pepp mi dagg

Tablo metalurgik bii dafay fexe:

Mikrostruktuur karbid ferrit bu dëgërresistant ci grossier ci suufu sargu termik.
Dañuy raam -lu ëpp 100 000 waxtu liggéey ci 540 ba 600 degre.
Integrite soudure bu baaxginaaw - soudure tàngoor - (PWHT).
Eskalaasioŋu oxidasioŋ buñ saytu, wàññi surfaasu tube bu ñaq ak yàqu-yàqu wen.

Integrite mekanik ak baña nangu tàngoor

Moom mu ngi	Wareef	Jubluwaay Ingénieur
Force de traction	Lu ëpp wala lu tollu ci 415 MPa (60 ksi)	Dafay muñ stress axial bu yàgg -
Yield Force	Lu ëpp wala lu tollu ci 205 MPa (30 ksi)	Dafay tere plastik bi yàqu
Guddaay	Lu ëpp wala lu tollu ci 30 %	Dafay joxe ductilité ci defar
Dëgër	Lu néew wala lu tollu ci 163 HBW	Dafay fexe ba soudure bi dëgër te baña coono

Su tàngoor wi yéegee, P22 dafay tëyedooley xar-xar bu ëpp 60 MPa ci 600 degre, di tëye jëmmam ak njubteem doonte ci biir presioŋ ak yëngu-yëngu.

Xaralay defar ak pajum tàngoor

P22 wuute na ak asiye yu amul karbon, ndax dafay laajthermique-mecaniqueci defar bi yépp.
Octal Pipe dafay jëfandikoo pexe yu xarañ yuñ boole akpajum tàngoor ci anam yu bari-ngir mëna am metallurgique buy méngoo ak dimensioŋ bu jaar yoon.

Yoonu defar:

Piercing billet ak formaasioŋ bu tàng– Cr{0}}Mo billets ñu ngi koy bënn ci 1100-1150 degre ci jëfandikoo extrusion rotary.
Dessin froid / Rolage à chaud- Dafay setal dayo pepp ak yamale miir.
Normalisation (940-980 degre)- Dafay raxas pepp ferritic yi ba noppi dindi carbure yiñ tàqale.
Temperature (675–760 degre)- Dafay wàcce stress yi ci biir, defaraat ductilité, ak dakkal carbure yi.
test hidrostatik / ultrason- Dafay firndeel kàttan pression ak dëgëraay structurel.

Biñaari - etape tàngoor(normalise + mer) lu jafe la. Dafay defar matrix ferrite bu am pepp yu baax, tempered buy baña yàqu, di dundal ductilité ci soudure, ba noppi di joxe performance creep buñu mëna seentu ci fukki at yu liggéey.

Dimensionel

Parametre	Xeet toppalante
Diametru bitti	1⁄2 "- 24" (12.7 - 610 mm)
Muur bu dëgër	1,2 – 100 mm
Gudd	Lu ëpp 12 m (SRL/DRL/personalisée)
Jub	Lu néew wala lu tollu ci 0.8 mm / m
Xeetu njeexte	Biseau / Plain / Fileté

Fabrikaasioŋ buñ personaalise bu melniU-courbe, bobine, ak ensemble boppumën nañu ko am suñu ko laajee ci sistemu kuuraŋ termik ak raffinerie.

Performance ci suufu tàngoor wu yéeg

Ci anam yu liggéey yu ëpp 550 degre , P22 dafay formucouche oxide Cr2O3 densedi tafu ci wen wu baax wi, di tere spallation ak ñàkkum wen.
Filmu bii dafay nuru-faj sa bopp, di tëye efficacité ci joxe tàngoor ak surface bu nooy ci diiru exposition bu yàgg.

Màndarga yi gëna am solo:

Force Creep bu kawe:Dafay dëgër ci biir sargal ak cyclu pression bu wéy.
Resistance ci coono thermique:Matrix bu am pepp bu baax - dafay tere xar-xar ci biir cycle yu yaatu.
Dayo bu jëm ci dimension:Yaatuwaayu termik bu woyof dafay tax soudure bi gëna dëppoo.
Performance de soudure:PWHT dafay defaraat ductilité bi ba noppi dindi stress bi des.
Resistance ci oxidation:Aar bu wóor ba 620 degre, di yokk diggante yi ñuy saytoo.

Doxal ci usine

ASTM A335 P22 tuyo alloy dafa bari luñu koy jëfandikoo cidefar kuuraŋ, petrochimik, akraffinagesektër yi, rawatina cisuperchauffage, rechauffage, ak sircuit ndox mu am presioŋ bu kawe.

Demànd yiy representé:

Tubes de chaudière et de chauffagengir yunit subkritik ak superkritik.
Boppu Steamakekonomiseurci sàntraalu kuuraŋ yi.
Raffinerie ak four pétrochimiquefu gaz carburant ak gaz oxidant di dundu.
Coquillage de échangeur de chaleurakbariwaayu coppiteDafay laaj stabilite metalurgik bu yàgg.

Done yi mu am ci infrastructure energie dañuy firndeel njariñam ciliggéey bu wéy ak diir bu néew, moo tax P22 nekk lu am solo ci usine yu am doole ci àdduna bi.

Test & Assurance Kalite

produit yépp a ngi méngoo akASTM A335 / A999akASME SA335norme, ñu firnde ko ci:

test hidrostatik wala ultrason
Test de plateau et flaring
Saytu màndarga mekanik (traction, dëgër)
Saytu dimension ak xool
Doxalinu jafe-jafe ak test radiografik

Bépp lote ñu ngi koy joxe akEN 10204 3.1/3.2 sàrtifikaasioŋ, toppu bu mat sëkk, ak dokimaa test moulin.

Koolute ci Ingénieur ak Tuyo Octal

Tuyo Octal dafay joxe tuyo ASTM A335 P22 cianam wu jaar yoon, ngir fexe ba tàngoor wu yéeg wiñ mëna seentu ak dëppoo ak soudure.
Ak ISO - defar sertifiye, QA / QC boole, ak projet - këyitu niveau, Octal Pipe joxe sistemu tuyo alloy wóor ngirthermique, raffinerie, ak liggéeyukaay yi ci àdduna bi yépp.

Jokkoo leen leegi

laaj ak tontu

Q1: Lan lañuy jëfandikoo tuyo ASTM A335 P22?

A1:Tamperatiir bu kawe, presioŋ bu kawe ci sàntraali kuuraŋ yi, raffineri yi ak paccu petrochimie yi.

Q2: Lan mooy sistemu alloy biñ gëna xam ci tuyo P22?

A2:2.25Cr{2}}1Mo (krom-moli) asiye ferritik buñ defar ngir mu baña yëngu ak oxidation.

Q3: Ban pajum tàngoor lañuy faral di soxla ci tuyo P22?

A3:Normalise ak température (N+T) ak dokimaa yuñ bind ci wàllu tàngoor.

Q4: Kañ laa wara tànn P22 ci palaasu P11 wala P91?

A4:Tannal P22 muy diggu-grade bu ekilibre ngir tàngoor/demand creep bu gëna rëy P11, waaye amul njëg/kontrol yu gëna rëy yiy faral di boole ak P91.

Q5: Lan laa wara laaj ngir xool kalite tuyo P22 balaa may jënd?

A5:EN 10204 3.1/3.2 MTC ak tàngoor wuñ mëna topp, njariñu mekanik/chimie, dëgër, ak test hydrostatic wala UT ni ñu ko leeralee.