SPV 450 steel yog dab tsi?
SIB 450yog ib tug Japanese Industrial Standard (JIS) tsim steel (JIS G3115 SPV 450) rau boilers thiab siab hlab ntsha, ib tug molybdenum-alloyed carbon steel paub txog lub zog zoo, weldability, thiab tsis kam mus siab - kub kev pab cuam thiab cracking, zoo tagnrho rau thov daim ntaub ntawv xws li roj & roj, lub zog tsim, thiab cov khoom hnyav.
SPV 450 yog Japanese (JIS G3115) tus qauv carbon-molybdenum alloy steel phaj, tshwj xeeb tsim rau boilers thiab siab hlab ntsha, muab lub zog zoo, weldability, thiab tsis kam rau siab - kub, siab - siab daim ntawv thov, feem ntau piv rau ASTM A537 Qib 1 los yog zoo xws li cov kev xav tau ntawm cov khoom siv hluav taws xob xws li kev tsim hluav taws xob.
Cov yam ntxwv tseem ceeb
Hom:Boiler thiab Pressure Vessel Steel Phaj.
Txheem:JIS G3115.
Kev sib xyaw:Carbon steel nrog molybdenum alloy.
Khoom:Tsim los rau siab zog, toughness, thiab kev ua tau zoo nyob rau hauv siab kub thiab siab.
Daim ntawv thov:Siv hauv kev tsim cov boilers, cov hlab ntsha siab, thiab lwm yam khoom siv tseem ceeb hauv cov chaw tsim hluav taws xob thiab kev lag luam hnyav.
Hauv Summary
Thaum koj pom SPV 450, xav txog lub phaj hlau uas muaj peev xwm tswj tau cov xwm txheej huab cua hauv boilers thiab cov hlab ntsha siab, ua kom muaj kev nyab xeeb thiab ua haujlwm ntev hauv kev lag luam.
Cov ntawv thov siv
Lub nkoj siab: Zoo tagnrho rau siv nyob rau hauv lub siab tseem ceeb xws li reactors, tshav kub exchangers, thiab distillation yees.
Boilers: Haum rau kev lag luam boilers thiab superheaters uas ua haujlwm nyob rau hauv siab - qhov kub thiab txias.
Cov kav dej: Siv nyob rau hauv cov roj, roj, thiab petrochemical pipelines rau siab - tsheb thauj mus los.
Lub zog tiam: Feem ntau siv rau turbine casing, siab hlab ntsha, thiab tshav kub exchangers nyob rau hauv thermal fais fab nroj tsuag.
SPV 450 piv rau P355GH li cas?
SPV 450 muaj zog tensile ntau dua (450 MPa) piv rau P355GH (355 MPa), ua kom nws zoo dua rau kev siv siab - siab. Tsis tas li ntawd, SPV 450 muaj kev ua tau zoo tshaj plaws nyob rau hauv siab dua - qhov kub thiab txias (txog 600 degree), hos P355GH feem ntau yog siv nyob rau hauv qhov kub thiab txias. Ob lub steels yog weldable, tab sis SPV 450 yog qhov zoo dua rau kev pabcuam ntau dua.
SPV 450 hardness yog dab tsi?
Lub hardness ntawm SPV 450 feem ntau yog nyob rau hauv thaj tsam ntawm 140-180 HB (Brinell Hardness). Qhov no muab qhov sib npaug zoo ntawm lub zog thiab tawv, ua rau nws tiv taus siab thiab thermal kev nyuaj siab yam tsis muaj nkig. Lub hardness ntawm steel ua kom ntseeg tau tias nws muaj peev xwm tswj tau nws cov qauv kev ncaj ncees hauv kev thov.
Puas yog SPV 450 weldable?
Yog lawm, SPV 450 muaj qhov zoo weldability. Nws tuaj yeem welded siv cov txheej txheem xws li SMAW (Shielded Hlau Arc Vuam), SAW (Submerged Arc Vuam), thiab MIG (Hlau Inert Gas). Preheating tej zaum yuav tsim nyog rau cov seem tuab kom tsis txhob tawg. Cov hlau tsis tshua muaj carbon sib npaug ua kom muaj zog thiab txhim khu kev qha welded sib koom ua ke.
SPV 450 Tshuaj muaj pes tsawg leeg% ntawm cov khoom tsom xam ntawm qib
|
Qib |
C % |
Si% |
Mn% |
P% |
S% |
|
|
SIB 450 |
0.18 |
0.75 |
1.6 |
0.03 |
0.03 |
|
SPV 450 Mechanical Property
|
Qib |
Thickness |
Min Yield |
Tensile |
Elongation |
|
|
|
|
|
|
Thickness |
|
|
SIB 450 |
6-50 hli |
450Mpa (min) |
570-700 Mpa |
<=16mm |
19% |
|
50-100 hli |
430 Mpa (min) |
570-700 Mpa |
>16 hli |
26% |
|
|
100-200 hli |
410 Mpa (min) |
570-700 Mpa |
>40 hli |
20% |
|
1. SPV 450 steel yog dab tsi?
SPV 450 yog qib qis- alloy steel qib tsim los rau siab - siab thiab siab - kev siv kub, feem ntau yog siv hauv cov hlab ntsha siab, boilers, thiab cov khoom siv hluav taws xob. Tshwj xeeb los ntawm JIS G3115, nws muaj qhov tsawg kawg nkaus tensile lub zog ntawm 450 MPa thiab zoo toughness, ua rau nws haum rau xav tau tej yam kev mob nyob rau hauv kev lag luam xws li petrochemical, lub zog tsim, thiab tshuaj.
2. SPV 450 ua haujlwm li cas hauv siab -kub siv?
SPV 450 ua tau zoo heev nyob rau hauv siab - qhov kub thiab txias ib puag ncig, tuav lub zog thiab nkag siab ntawm qhov kub txog li 500-600 degree. Nws cov ntsiab lus molybdenum txhim kho nws cov kev tiv thaiv rau kev nkag thiab oxidation, thaum cov hlau khaws cov khoom zoo txawm tias nyob rau hauv lub sij hawm ntev thermal kev nyuaj siab, ua rau nws haum rau siv nyob rau hauv lub hwj chim tiam thiab petrochemical daim ntaub ntawv.
3. Cov txheej txheem vuam dab tsi raug pom zoo rau SPV 450?
Cov txheej txheem vuam pom zoo rau SPV 450 suav nrog SMAW (Shielded Hlau Arc Vuam), MIG (Hlau Inert Gas), thiab SAW (Submerged Arc Vuam). Kev siv cov khoom siv vuam zoo thiab kev ua kom sov (150-250 degree) yog qhov tseem ceeb rau cov ntu tuab kom tsis txhob tawg thiab ua kom cov pob qij txha muaj zog. Tom qab-weld heat treatment (PWHT) feem ntau yuav tsum tau los daws kev ntxhov siab.
4. Qhov cuam tshuam toughness ntawm SPV 450 yog dab tsi?
SPV 450 nthuav tawm cov kev cuam tshuam zoo heev, ua kom muaj kev tiv thaiv kom tawg tawg nyob rau hauv ob qho tib si ambient thiab siab kub. Qhov no toughness ua rau nws haum rau siv nyob rau hauv lub siab hlab ntsha, qhov twg sai sai hloov siab los yog mechanical shocks yuav tshwm sim. Cov hlau tsis zoo - qhov kub thiab txias cuam tshuam ntxiv rau nws txoj kev nyab xeeb thiab kev ntseeg tau.
5. SPV 450 ua haujlwm li cas thiab kev ntxhov siab?
SPV 450 yog tsim tshwj xeeb los ua haujlwm siab - ib puag ncig siab. Nrog rau qhov tsawg kawg nkaus tensile lub zog ntawm 450 MPa thiab zoo heev creep kuj ntawm qhov kub thiab txias, SPV 450 tuaj yeem tiv taus lub zog sab hauv thiab cov khoom siv. Nws lub zog siab ua kom nws muaj peev xwm tswj tau nws cov duab thiab ua haujlwm nyob rau hauv cov xwm txheej ntxhov siab heev.
6. SPV 450 puas tuaj yeem siv rau hauv qhov chaw ua haujlwm cryogenic?
Tsis yog, SPV 450 tsis yog tsim los rau cov ntawv thov cryogenic. Nws yog optimized rau siv nyob rau hauv siab - kub thiab siab - siab tej yam kev mob, tshwj xeeb tshaj yog rau kub xws li ambient mus rau 500-600℃. Rau cov ntawv thov cryogenic, cov ntaub ntawv uas muaj qhov siab tshaj - qhov kub thiab txias, xws li cov hlau tsis muaj steel lossis cov khoom siv cryogenic tshwj xeeb, yuav tsim nyog dua.
7. Lub zog tensile ntawm SPV 450 yog dab tsi?
SPV 450 muaj lub zog tensile yam tsawg kawg nkaus ntawm 450 MPa, ua kom nws muaj peev xwm tiv taus siab - cov xwm txheej siab. Qhov no ua rau nws zoo tagnrho rau cov kev siv tseem ceeb xws li cov hlab ntsha siab, boilers, thiab cov cua kub exchangers. Cov hlau muaj zog tensile siab pab txhawb rau nws cov kev ua tau zoo nyob rau hauv thermal stress thiab mechanical load nyob rau hauv hnyav ib puag ncig.
Yog xav paub ntxiv txogSIB 450GNEE cov khoom, koj tuaj yeem xa email rau toinfo@gneesteels.com . Peb zoo siab tshaj los pab koj.
