SA353 9%Ni steelyog lub siab - zoo alloy phaj nrog precisely tswj tshuaj muaj pes tsawg leeg thiab zoo heev mechanical zog. Kuj tseem hu ua 9% nickel steel lossis 9Ni steel, cov khoom siv no tau siv dav hauv kev tsim cov roj liquefied natural gas (LNG) cia tso tsheb hlau luam thiab thauj cov nkoj uas xav tau lub zog tshwj xeeb thiab tawv ntawm qhov kub thiab txias.
Lub ntsiab lus tseem ceeb
Tus qauv tsim: SA353 9%Ni steel
Cov npe nrov: 9% nickel steel, 9Ni steel
Daim ntawv thov tseem ceeb: Kev tsim cov hlab ntsha siab rau LNG cia thiab kev thauj mus los, qhov twg siab zog thiab tawv yuav tsum tau nyob rau hauv cov xwm txheej cryogenic.
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm SA353 9%Ni steel yog nruj me ntsis tswj kom ntseeg tau tias cov khoom siv zoo heev thiab corrosion kuj. Cov ntsiab lus tseem ceeb yog raws li nram no:
|
Tshuaj |
Hom |
Kev sib xyaw |
|
C Tsawg dua los yog sib npaug |
Kev ntsuas kub |
0.13 |
|
Cov khoom tsom xam |
||
|
Mn Tsawg dua lossis sib npaug |
Kev ntsuas kub |
0.90 |
|
Cov khoom tsom xam |
0.98 |
|
|
P Tsawg dua lossis sib npaug S Tsawg dua los yog sib npaug |
Kev ntsuas kub |
0.035 |
|
Cov khoom tsom xam |
||
|
Si |
Kev ntsuas kub |
0.15~0.40 |
|
Cov khoom tsom xam |
0.13~0.45 |
|
|
Ni |
Kev ntsuas kub |
8.50~9.50 |
|
Cov khoom tsom xam |
8.40~9.60 |
Nickel yog qhov tseem ceeb ntawm cov alloying, muab qhov zoo tshaj plaws uas tsis muaj -kub toughness.
Mechanical Properties
SA353 9%Ni steel muaj lub zog siab, zoo heev toughness, thiab zoo weldability. Cov yam ntxwv ntawm mechanical zog yog:
|
Qib |
Thickness |
Yield |
Elongation |
|
SIB 353 |
mm |
Min Mpa |
Tsawg% |
|
5<> |
585-820 |
18 |
|
|
30<> |
575-820 |
18 |
Kev kho cua sov
Txhawm rau kom ua tiav qhov xav tau microstructure thiab kev ua haujlwm txhua yam, SA353 9%Ni steel raug nruj peb- kauj ruam kev kho cua sov:
Ua ntej Normalizing
- Kub sib npaug mus rau 1650 ± 25℃F (900 ± 15 degree)
- Tuav kom tsawg kawg 1 teev ib nti ntawm thickness (los yog 2.4 min / mm), nrog tsawg kawg yog 15 feeb tag nrho
- Txias hauv huab cua
Thib ob Normalizing
- Reheat rau 1450 ± 25 ° F (790 ± 15 ° F)
- Tib lub sij hawm tuav raws li thawj normalizing
- Txias hauv huab cua
Tempering
- Reheat rau 1050 - 1125 ° F (565 - 605 ° F)
- Tib lub sijhawm tuav cov cai
- Txias hauv huab cua lossis dej quench ntawm tus nqi tsis tsawg dua 300℃F / h (165℃/ h)
Qhov kev kho cua sov no ua kom muaj txiaj ntsig zoo -grained, tempered martensitic lossis bainitic qauv nrog zoo heev cryogenic toughness.
Application Features & Advantages
Zoo heev Cryogenic Toughness
SA353 9%Ni steel tuav lub zog siab thiab cuam tshuam txawm tias ntawm -196 degree, ua rau nws xaiv cov khoom siv rau LNG cia tso tsheb hlau luam thiab cov nkoj thauj khoom cryogenic.
Weldability zoo
Cov hlau muaj qhov zoo weldability, ua kom muaj ntau yam txheej txheem vuam thaum ua kom muaj zog, tawv welded pob qij txha.
Tus nqi -Kev ua tau zoo
Piv rau austenitic stainless hlau thiab aluminium alloys, SA353 9%Ni steel muaj qis coefficient ntawm thermal expansion thiab kev lag luam zoo tag nrho. Qhov no txo cov nqi tsim khoom thiab kev ua haujlwm ntawm cov khoom siv cryogenic.
Pov thawj Performance
Kev siv dav dav hauv - nplai LNG cia tso tsheb hlau luam thiab cov nkoj tshwj xeeb, cov khoom siv no tau pom tias muaj kev ntseeg siab ntev ntev - kev pabcuam nyob rau hauv cov xwm txheej hnyav.
Cov ntsiab lus
SA353 9%Ni steel yog lub siab- ua tau zoo alloy phaj uas sib txuas lub zog siab, zoo heev qis-kub toughness, zoo weldability, thiab nyiaj txiag txiaj ntsig. Nws cov chemistry tswj tau meej thiab kev kho cua sov tshwj xeeb ua rau nws tus qauv kev lag luam tsim LNG cia tso tsheb hlau luam thiab lwm cov hlab ntsha cryogenic. Raws li kev thov thoob ntiaj teb rau cov roj liquefied natural gas txuas ntxiv zuj zus, SA353 9%Ni steel tseem yog cov khoom siv tseem ceeb rau kev nyab xeeb thiab siv hluav taws xob zoo.
FAQ
Puas yog SA353 9%Ni steel yooj yim rau vuam?
Ua ncaj ncees, SA353 9%Ni steel tsis yooj yim rau vuam. Nws xav tau ntau dua li cov pa roj carbon steel. Kev vuam tsis zoo tuaj yeem ua rau tawg lossis ua rau nws nkig ntawm qhov kub thiab txias. Tab sis yog tias koj siv txoj hlua vuam zoo (feem ntau yog npib tsib xee- raws li tus pas nrig zoo li NiCrMo-3), tswj qhov tam sim no thiab kub kom zoo, thiab ua raws li qhov xav tau kev kho cua sov tom qab vuam, nws yuav zoo.
Vim li cas SA353 9%Ni steel thiaj li kim?
SA353 9%Ni steel yog kim vim nws cov ntsiab lus nickel siab - txog 9% npib tsib xee, thiab npib tsib xee nws tus kheej tsis pheej yig. Tab sis nws tsim nyog tus nqi: nws tuaj yeem tiv taus qhov kub thiab txias li -196℃thaum tuav lub zog siab. Yog tias koj siv cov hlau tsis tu ncua, nws yuav tsis muaj zog txaus, yog li koj yuav xav tau ntau lub phaj tuab, uas ua rau cov khoom pov tseg. Yog tias koj siv aluminium alloy, vuam yog qhov nyuaj thiab lub zog qis dua. Thaum koj saib tag nrho cov nqi, SA353 9%Ni steel yog qhov ua tau zoo dua vim tias nws muaj zog, tawv, thiab tuaj yeem ua thinner - tag nrho cov nqi qis dua.
Qhov ntsuas kub tsawg npaum li cas tuaj yeem SA353 9%Ni steel tuav?
SA353 9%Ni steel yog tsim tshwj xeeb rau LNG (liquefied natural gas). LNG kub yog -162 degree, thiab steel qhov txwv yog -196 degree.
Does SA353 9%Ni steel rust easily?
Piv nrog rau cov pa roj carbon steel tsis tu ncua, SA353 9%Ni steel muaj kev tiv thaiv corrosion zoo dua vim nws cov ntsiab lus siab nickel. Tab sis nws tsis yog stainless hlau - nyob rau hauv qhov chaw ntub dej los yog ntsev, qhov saum npoo tseem yuav xeb. Yog tias siv sab nraud ntawm lub tank LNG, txheej txheej ib txwm xav tau. Yog tias siv nyob rau hauv qhov chaw nws tiv tauj LNG, tsis muaj cov tshuaj tiv thaiv corrosion ntawm qhov kub thiab txias, yog li tsis xav tau txheej txheej ntxiv.
Kuv puas tuaj yeem vuam SA353 9%Ni steel daim hlau ncaj qha tom qab yuav lawv?
SA353 9%Ni steel daim hlau twb dhau los ntawm txoj kev kho cua sov ntawm lub Hoobkas (ob chav normalizing ntxiv rau tempering), yog li cov khoom yog npaj rau vuam raws li cov txheej txheem txheem. Txawm li cas los xij, tom qab vuam, tom qab- vuam cov cua sov feem ntau yog xav tau los txo kev ntxhov siab.
Puas yog SA353 9%Ni steel zoo ib yam li qhov feem ntau hu ua 9Ni steel? Puas muaj fakes?
SA353 yog ASME tus qauv tsim. Qhov koj nquag hnov li "9Ni steel" tsuas yog lub npe dav dav xwb. Ntev npaum li nws los ntawm lub tshuab tsis tu ncua thiab ua tau raws li tus qauv SA353, cov tshuaj muaj pes tsawg leeg thiab cov khoom zoo ib yam. Muaj tseeb tiag qee qhov qis- zoo fakes ntawm lub khw, yog li thaum yuav khoom, nco ntsoov xyuas daim ntawv pov thawj zeb. Xyuas kom tseeb tias cov ntsiab lus npib tsib xee nyob nruab nrab ntawm 8.6% thiab 9.4%, thiab thov kev ntsuam xyuas cuam tshuam ntawm -196 degree.
