SPV355yog ib hom kev siab nkoj steel phaj nrog zoo heev txhua yam khoom. Nws yog tsuas yog siv los tsim lub siab- cov khoom siv bearing, muaj lub zog siab, zoo toughness thiab weldability, ua raws li cov qauv kev lag luam rau cov khoom siv hauv siab.
Chemical element
| Element | Min | Max | Zoo sib xws |
|---|---|---|---|
| Si | 0.1500 | 0.5500 | - |
| S | - | 0.0300 | - |
| P | - | 0.0300 | - |
| Mn | - | 1.6000 | - |
| C | - | 0.2000 | - |
Mechanical zog
| Yield Rp0.2(MPa) |
Tensile Rm(MPa) |
Kev cuam tshuam KV/Ku (J) |
Elongation A (%) |
Kev txo qis hauv ntu ntu ntawm pob txha Z (%) |
Raws li -Heat-Kev Kho Mob | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 985 (Ntau dua lossis sib npaug) | 858 (Ntau dua lossis sib npaug) | 24 | 31 | 22 | Kev daws thiab Kev laus, Annealing, Ausaging, Q + T, thiab lwm yam | 212 |
Lub cev muaj zog
| Kub (degree) |
Modulus ntawm elasticity (GPa) |
Lub ntsiab lus coefficient ntawm thermal expansion 10-6 / (degree) ntawm 20 (degree) thiab | Thermal conductivity (W / m· degree) |
Tshwj xeeb thermal muaj peev xwm (J / kg · degree) |
Tshwj xeeb hluav taws xob resistivity (Ω mm² / m) |
Qhov ntom (kg/dm³) |
Poisson tus coefficient, ν |
|---|---|---|---|---|---|---|---|
| 11 | - | - | 0.23 | - | |||
| 165 | 711 | - | 14.3 | 211 | - | ||
| 933 | - | 33 | 12.2 | 214 | 324 |
Daim ntawv thov
SPV355 yog lub siab - zoo siab lub nkoj steel ua raws li JIS G3115, uas muaj qhov zoo tshaj plaws weldability, toughness, thiab siab tsis kam. Nws cov ntawv thov tseem ceeb yog tsom rau hauv thaj chaw uas xav tau kev nyab xeeb nruj thiab cov qauv kev ua haujlwm, tshwj xeeb hauv qab no:
Kev lag luam Petrochemical:
Dav siv los tsim cov cuab yeej tseem ceeb xws li reactors, distillation towers, cia tso tsheb hlau luam, thiab cov cua kub exchangers. Nws tuaj yeem tiv taus siab, kub siab, thiab xeb los ntawm cov tshuaj lom neeg (xws li, roj av, roj av, thiab tshuaj reagents), ua kom muaj kev ruaj ntseg ntawm cov roj refining thiab cov kab ntau lawm.
Lub zog fais fab kev lag luam:
Siv nyob rau hauv zus tau tej cov boiler drums, chav headers, thiab siab pipelines rau thermal fais fab nroj tsuag thiab nuclear fais fab auxiliary khoom. Nws hloov mus rau qhov ntev - lub sijhawm ua haujlwm nyob rau hauv siab - qhov kub thiab txias ( Tsawg dua lossis sib npaug li 450℃) thiab siab - siab, lav kev nyab xeeb thiab kev ua haujlwm ntawm lub tshuab hluav taws xob.
Metallurgical & Machinery Kev Lag Luam:
Siv los tsim cov hlab ntsha siab rau metallurgical smelting (xws li, blast furnace gas storage tanks) thiab hydraulic khoom cylinders. Nws ua tau raws li qhov yuav tsum tau ua ntawm hnyav- thauj khoom thiab kev ua haujlwm sib txawv, nrog rau kev ua haujlwm zoo deformation thiab kev ua haujlwm qaug zog.
Nroog Infrastructure:
Ua haujlwm nyob rau hauv kev tsim cov khoom siv roj ntsha, LPG thauj cov tank, thiab cov dej xa dej thiab cov kav dej siab. Nws ua kom muaj kev nyab xeeb kev thauj mus los thiab khaws cia ntawm lub zog thiab dej hauv kev ua haujlwm hauv nroog.
Cov Cai Thov
Txhawm rau muab kev ua si tag nrho rau SPV355 qhov kev ua tau zoo thiab ua kom muaj kev nyab xeeb ntawm kev ua haujlwm, yuav tsum ua raws li cov cai hauv qab no:
Qhov kub thiab txias:
Haum rau kev ua haujlwm kub xws li -20℃txog 450℃. Thaum qhov kub thiab txias qis dua -20 degree, nws yog ib qho tsim nyog yuav tsum tau ua qhov kev ntsuam xyuas toughness kom tsis txhob tawg tawg; Thaum siab tshaj 450 degree, nws lub zog yuav txo qis, yog li nws yuav tsum tsis txhob siv nyob rau hauv lub sij hawm ntev-kub ib puag ncig tshaj qhov txwv.
Kev mob siab:
Tsim los rau nruab nrab thiab siab - qhov chaw ua haujlwm siab, nrog qhov siab tshaj plaws tso cai ua haujlwm siab (MAWP) sib piv nws cov tuab thiab kho cua sov lub xeev. Nws yuav tsum raug kuaj los ntawm kev ntsuas siab (hydrostatic lossis pneumatic test) ua ntej siv kom tsis txhob muaj qhov xau raws li qhov ntsuas siab.
Qhov Nruab Nrab:
Resistant mus rau cov uas tsis yog - muaj zog corrosive media xws li roj, roj, dej, thiab chav. Rau cov xov xwm muaj zog corrosive (piv txwv li, acids, alkalis), los tiv thaiv - kho corrosion (txheej, hauv ob sab phlu) los yog txuam nrog corrosion- cov ntaub ntawv resistant yuav tsum tau.
Welding & Installation mob:
Vuam cov ntaub ntawv (xws li, E50 series electrodes) txuam SPV355 yuav tsum tau siv, thiab preheating (100{5}}150 degree) thiab tom qab vuam thaum tshav kub kub kho (PWHT) yuav tsum tau ua kom tsis txhob welding tawg. Kev txhim kho yuav tsum ua raws li cov lus qhia tshwj xeeb ntawm lub nkoj kom nruj thiab ruaj khov.
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
Thov ib tug kws tshaj lij hais rau SPV355 los ntawm GNEE Steel.
SPV355 puas tuaj yeem ua tau txias-?
SPV355 tuaj yeem ua rau txias- tsim nyob rau hauv ib qho kev sib txawv, tab sis kev deformation txias heev tuaj yeem ua rau kev ua haujlwm tawv thiab txo qhov tawv. Rau cov duab nyuaj lossis loj deformation, preheating lossis post- kev kho cua sov yog pom zoo.
Dab tsi yog qhov ceev ntawm SPV355?
Qhov ceev ntawm SPV355 yog kwv yees li 7.85 g / cm³, tib yam li cov pa roj carbon zoo tib yam. Tus nqi ntom ntom no yog siv rau kev ntsuas qhov hnyav hauv lub nkoj siab tsim thiab tsim khoom.
Puas yog SPV355 xav tau kev kho saum npoo ua ntej siv?
SPV355 xav tau kev kho deg (xws li derusting, degreasing) ua ntej siv, tshwj xeeb tshaj yog ua ntej vuam lossis tiv thaiv- txheej txheej. Qhov no tshem tawm cov impurities saum npoo, ua kom cov vuam zoo thiab txhim kho cov adhesion ntawm anti-corrosion txheej.
Dab tsi yog qhov kev pab cuam lub neej ntawm SPV355 siab hlab ntsha?
Kev pabcuam lub neej ntawm SPV355 cov hlab ntsha siab feem ntau yog 10-20 xyoo, nyob ntawm kev ua haujlwm (kub, siab, nruab nrab corrosion), qib txij nkawm thiab ua raws li kev ua haujlwm tshwj xeeb. Kev tshuaj xyuas tsis tu ncua tuaj yeem ua rau lub neej ua haujlwm ntev.
SPV355 puas tuaj yeem siv rau hauv hydrogenation reactors?
SPV355 tuaj yeem siv rau hauv qis-siab hydrogenation reactors, tab sis rau siab -siab thiab siab-kub hydrogenation tej yam kev mob, nws yuav tsum tau kho tshwj xeeb (xws li hydrogen embrittlement resistance kev kho mob) los yog hloov nrog ntau haum steel qib.
Dab tsi yog qhov kev xeem cuam tshuam rau SPV355?
SPV355 yuav tsum tau Charpy V- qhov ntsuas qhov cuam tshuam ntawm -20 degree, nrog rau qhov cuam tshuam tsawg kawg ntawm lub zog tsis pub tsawg tshaj 27 J. Qhov kev ntsuas no ntsuas cov hlau tsis tshua muaj qhov kub thiab txias thiab tsis kam ua rau tawg tawg nyob rau hauv kev cuam tshuam.
Puas yog SPV355 yog qis- hlau alloy?
Yog lawm, SPV355 yog qhov qis- alloy siab- lub zog steel. Nws ntxiv me me ntawm cov ntsiab lus alloying (xws li Mn, Si) raws li cov pa roj carbon steel, uas txhim kho nws lub zog thiab toughness yam tsis muaj nqi ntau lawm.
SPV355 puas tuaj yeem siv rau cov kua tso kua dej?
Yog lawm, SPV355 yog dav siv rau kev tsim cov kua tso tsheb hlau luam (xws li cov dej tso tsheb hlau luam, cov roj tso tsheb hlau luam, cov roj tso tsheb hlau luam) uas dais qee qhov siab. Nws zoo sealing kev ua tau zoo thiab siab -cov kabmob muaj peev xwm ua kom muaj kev nyab xeeb ntawm cov kua.
Dab tsi yog qhov kev ceev faj rau kev thauj khoom SPV355 steel phaj?
Thaum thauj SPV355 steel daim hlau, zam kev sib tsoo thiab khawb kom tiv thaiv qhov chaw puas. Lawv yuav tsum tau teem kom zoo zoo, ruaj khov kom tsis txhob ntog, thiab tiv thaiv los ntawm nag thiab noo noo kom tsis txhob xeb ua ntej siv.