ASTM A335 P9, tseem hu ua ASME SA335 P9, yog cov yeeb nkab ferritic alloy steel seamless rau kev pabcuam kub siab nrogUNS No. K90941.
Cov khoom sib xyaw ua ke feem ntau yog chromium thiab molybdenum. Cov ntsiab lus chromium yog li ntawm 8.00 - 10.00%, thaum cov ntsiab lus molybdenum yog nyob rau hauv qhov ntau ntawm 0.90% - 1.10%.
P9muaj lub zog zoo heev thiab tiv taus corrosion zoo hauv qhov chaw kub siab thiab siv dav hauv boilers, cov khoom siv petrochemical, thiab cov chaw tsim hluav taws xob uas xav tau qhov kub thiab txias thiab siab.
⇒ Khoom sivASTM A335 P9 / ASME SA335 P9 seamless alloy steel yeeb nkab.
⇒Sab nraud txoj kab uas hla: 1/8"- 24".
⇒Phab ntsa tuabASME B36.10 cov kev cai.
⇒Teem sijhawmCov khoom siv: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 thiab SCH160.
⇒Kev txheeb xyuas: STD (tus qauv), XS (muaj zog heev), lossis XXS (ob npaug muaj zog heev).
⇒Ntev: Qhov ntev tshwj xeeb lossis random.
⇒Kev Kho Kom Haum: Txoj kab uas hla sab nraud uas tsis yog tus qauv, tuab ntawm phab ntsa, ntev, thiab lwm yam raws li qhov yuav tsum tau ua.
⇒Cov khoom sivPeb tuaj yeem muab cov khoom siv tib yam xws li khoov, stamping flanges, thiab lwm yam khoom siv txhawb nqa cov yeeb nkab hlau.
⇒Daim ntawv pov thawj IBRDaim ntawv pov thawj IBR tuaj yeem muab tau yog tias xav tau.
⇒Xaus: Qhov kawg tiaj tus, qhov kawg beveled, lossis qhov kawg yeeb nkab sib xyaw.
⇒Ntim khoom: rooj ntoo, hlau siv lossis hlau hlau ntim, yas lossis hlau yeeb nkab kawg tiv thaiv.
⇒Kev Thauj Mus Los: los ntawm kev caij nkoj lossis kev caij dav hlau.
ASTM A335 cov yeeb nkab hlau yuav tsum tsis muaj qhov sib txuas.
Cov yeeb nkab hlau tsis muaj seamless yog cov yeeb nkab hlau uas tsis muaj welds thoob plaws.
Vim tias cov yeeb nkab hlau tsis muaj qhov sib txuas hauv nws cov qauv, nws zam kev phom sij kev nyab xeeb uas yuav cuam tshuam nrog cov teeb meem zoo ntawm kev vuam. Qhov no tso cai rau cov yeeb nkab tsis muaj qhov sib txuas kom tiv taus qhov siab dua, thiab nws cov qauv sab hauv zoo sib xws ntxiv ua kom ntseeg tau tias cov yeeb nkab muaj kev ncaj ncees thiab kev nyab xeeb hauv qhov chaw siab.
Tsis tas li ntawd xwb, qhov kev ntseeg tau ntawm ASTM A335 tubing tau txhim kho los ntawm kev ntxiv cov ntsiab lus tshwj xeeb rau cov xwm txheej kub thiab siab.
Cov hom kev kho cua sov muaj rau cov khoom siv P9 suav nrog kev ua kom tag nrho lossis isothermal annealing, nrog rau kev ua kom zoo thiab tempering. Cov txheej txheem normalizing thiab tempering muaj qhov kub tempering ntawm 1250 ° F [675 ° C].
Cov ntsiab lus tseem ceeb ntawm P9 alloying yogCrthiabMo, uas yog cov hlau chromium-molybdenum.
Cr (Chromium)Cr yog lub ntsiab lus tseem ceeb ntawm cov hlau alloy, uas muab lub zog zoo heev thaum kub thiab tiv taus oxidation. Nws tsim cov zaj duab xis chromium oxide ntom ntom rau ntawm qhov chaw ntawm cov hlau, ua rau cov yeeb nkab ruaj khov thiab tiv taus corrosion ntawm qhov kub siab.
Mo (Molybdenum): Qhov ntxiv ntawm Mo ua rau lub zog thiab kev tawv ntawm cov hlau alloys zoo dua, tshwj xeeb tshaj yog nyob rau hauv qhov chaw kub siab. Mo kuj pab txhim kho lub zog ntawm cov khoom siv, piv txwv li lub peev xwm los tiv taus kev hloov pauv hauv qab kev raug cua sov ntev.
Cov Khoom Tensile
P5, P5b, P5c, P9,P11, P15, P21, thiab P22: Lub zog tensile thiab yield yog tib yam.
P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, thiab P22: Tib lub sijhawm ntev.
IbRooj 5 muab cov nqi tsawg kawg nkaus uas tau xam tawm.
Qhov twg phab ntsa tuab nyob nruab nrab ntawm ob qho nqi saum toj no, qhov tsawg kawg nkaus elongation tus nqi yog txiav txim siab los ntawm cov mis hauv qab no:
Ntev, P9: E = 48t + 15.00 [E = 1.87t + 15.00]
Transverse, P9: E = 32t + 15.00 [E = 1.25t + 15.00]
qhov twg:
E = kev ntev hauv 2 nti lossis 50 hli, %,
t = qhov tuab tiag tiag ntawm cov qauv, hauv. [hli].
Qhov nyuaj
P9 tsis tas yuav tsum tau kuaj qhov nyuaj.
P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, P22, thiab P921: Tsis tas yuav tsum tau kuaj xyuas qhov nyuaj.
Thaum lub sab nraud txoj kab uas hla > 10 nti [250 hli] thiab phab ntsa tuab ≤ 0.75 nti [19 hli], txhua yam yuav tsum tau kuaj hydrostatically.
Qhov kev sim siab tuaj yeem suav tau siv cov qauv hauv qab no.
P = 2St/D
P= qhov siab ntawm kev sim hydrostatic hauv psi [MPa];
S= kev ntxhov siab ntawm phab ntsa yeeb nkab hauv psi lossis [MPa];
t= qhov tuab ntawm phab ntsa uas tau teev tseg, qhov tuab ntawm phab ntsa raws li tus lej teem sijhawm ANSI uas tau teev tseg lossis 1.143 npaug ntawm qhov tuab tsawg kawg nkaus ntawm phab ntsa uas tau teev tseg, hauv. [hli];
D= txoj kab uas hla sab nraud uas tau teev tseg, txoj kab uas hla sab nraud uas sib raug rau qhov loj ntawm cov yeeb nkab ANSI uas tau teev tseg, lossis txoj kab uas hla sab nraud uas tau suav los ntawm kev ntxiv 2t (raws li tau txhais saum toj no) rau txoj kab uas hla sab hauv uas tau teev tseg, hauv. [mm].
Lub sijhawm sim: khaws tsawg kawg 5s, tsis muaj qhov xau.
Thaum cov yeeb nkab tsis tas yuav kuaj hydro, yuav tsum ua qhov kev sim tsis puas tsuaj rau txhua cov yeeb nkab kom pom cov qhov tsis zoo.
Kev sim tsis ua puas tsuaj ntawm cov khoom siv P9 yuav tsum tau ua los ntawm ib txoj hauv kevE213, E309 or E570.
E213: Xyaum Ua Ultrasonic Kev Ntsuas Cov Yeeb Nkab Hlau thiab Tubing;
E309: Xyaum rau Eddy Current Examination ntawm Steel Tubular Products Siv Magnetic Saturation;
E570Kev Xyaum Ua Rau Kev Tshawb Xyuas Flux Leakage ntawm Ferromagnetic Steel Tubular Products;
Kev Hloov Pauv Tau Hauv Txoj Kab uas hla
Qhov sib txawv ntawm txoj kab uas hla tuaj yeem faib ua pawg raws li 1. raws li txoj kab uas hla sab hauv lossis 2. raws li txoj kab uas hla nominal lossis sab nraud.
1. Sab hauv txoj kab uas hla: ± 1%.
2. NPS [DN] lossis sab nraud txoj kab uas hla: Qhov no ua raws li qhov kev hloov pauv uas tso cai hauv lub rooj hauv qab no.
Kev Hloov Pauv Uas Tso Cai Hauv Phab Ntsa Thickness
Lub thickness ntawm phab ntsa yeeb nkab ntawm txhua qhov chaw yuav tsum tsis pub tshaj qhov kev kam rau siab uas tau teev tseg.
Qhov tsawg kawg nkaus ntawm phab ntsa tuab thiab sab nraud txoj kab uas hla rau kev tshuaj xyuas kom ua raws li qhov yuav tsum tau ua no rau cov yeeb nkab uas NPS [DN] xaj thiab tus lej teem sijhawm tau qhia hauvASME B36.10M.
Cov ntsiab lus ntawm kev cimLub npe ntawm tus neeg tsim khoom lossis lub cim lag luam; tus lej txheem; qib; qhov ntev thiab lub cim ntxiv "S".
Cov cim rau hydrostatic pressure thiab non-destructive testing hauv lub rooj hauv qab no yuav tsum tau suav nrog.
Cim qhov chaw: Kev cim yuav tsum pib kwv yees li 12 ntiv tes (300 hli) ntawm qhov kawg ntawm lub yeeb nkab.
Rau cov kav dej txog li NPS 2 lossis tsawg dua 3 ft (1 m) ntev, cov cim qhia yuav raug txuas rau ntawm daim ntawv lo.
ASTM A335 P9 cov yeeb nkab steel yog siv dav hauv cov boilers, cov khoom siv petrochemical fais fab chaw nres tsheb, thiab lwm yam, uas yuav tsum tau tiv taus qhov kub thiab txias siab vim nws qhov kub siab zoo dua thiab kev tiv taus siab.
Cov BoilersTshwj xeeb tshaj yog nyob rau hauv cov kav dej loj thiab cov kav dej rov ua kom sov ntawm cov supercritical thiab ultra-supercritical boilers rau qhov kub thiab txias heev.
Cov khoom siv roj avXws li cov kav dej tawg thiab cov kav dej kub, uas tswj cov pa kub thiab cov tshuaj lom neeg, xav tau cov ntaub ntawv uas kub thiab tiv taus xeb zoo heev.
Chaw fais fabRau cov kav dej loj thiab cov cua sov siab, nrog rau cov kav dej sab hauv turbine kom tiv taus lub sijhawm ntev ntawm qhov kub thiab txias thiab siab.
Cov Khoom Siv P9 muaj lawv cov qib txheem hauv cov txheej txheem txheem hauv tebchaws sib txawv.
EN 10216-2: 10CrMo9-10;
GB/T 5310: 12Cr2Mo;
JIS G3462: STBA 26;
ISO 9329: 12CrMo195;
GOST 550: 12ChM;
Ua ntej xaiv cov khoom siv sib npaug, nws raug pom zoo kom ua qhov kev sib piv thiab kev sim ua kom ntxaws kom ntseeg tau tias cov khoom siv lwm txoj hauv kev yuav ua tau raws li qhov yuav tsum tau ua ntawm tus qauv tsim thawj.
Txij li thaum nws tau tsim tsa xyoo 2014,Botop Hlautau dhau los ua tus thawj coj ntawm cov yeeb nkab hlau carbon hauv Northern China, paub txog kev pabcuam zoo heev, cov khoom lag luam zoo, thiab cov kev daws teeb meem dav dav.
Lub tuam txhab muaj ntau yam yeeb nkab hlau carbon thiab cov khoom lag luam cuam tshuam, suav nrog cov yeeb nkab hlau seamless, ERW, LSAW, thiab SSAW, nrog rau cov khoom siv yeeb nkab thiab cov flanges tiav. Nws cov khoom tshwj xeeb kuj suav nrog cov hlau alloys zoo thiab cov hlau stainless austenitic, tsim los ua kom tau raws li qhov xav tau ntawm ntau yam haujlwm yeeb nkab.
Thov koj xav tiv tauj peb yog tias koj muaj kev xav tau lossis lus nug txog cov yeeb nkab hlau. Peb tos ntsoov yuav tau txais koj cov ntaub ntawv thiab tos ntsoov yuav pab koj.
