ASTM A515 Qib 70yog cov pa roj carbon-manganese steel phaj tsim los rau nruab nrab-kub siab lub nkoj kev pabcuam. Ua rau ASTM A515, nws yog tsim rau fusion vuam nyob rau hauv boilers thiab siab hlab ntsha. Qib no muaj lub zog zoo, toughness, thiab weldability, kom ntseeg tau tias kev ua tau zoo ntawm qhov kub siab. Nws yog feem ntau siv rau cov khoom siv ntawm cov hlab ntsha siab, cov tso tsheb hlau luam, thiab cov boiler qhov chaw uas yuav tsum tau ua haujlwm zoo nyob rau hauv lub siab thiab kub.
Cov cuab yeej cuab tam rau A515 Qib 70 steel phaj
| Yield zog (Mpa) | Tensile zog (Mpa) | Elongation nyob rau hauv ntau dua los yog sib npaug rau ,% | |
| 260 | 485-620 | 200 hli | 50 hli |
| 17 | 21 | ||
Tshuaj muaj pes tsawg leeg rau A515 Qib 70 steel phaj (Cov khoom lag luam tsom xam Max%)
| Cov ntsiab lus tseem ceeb ntawm A515 Qib 70 steel phaj | |||||
| Thickness (hli) | C | Si | Mn | P | S |
| T Tsawg dua lossis sib npaug li 25 | 0.24 | 0.13-0.45 | 0.98 | 0.025 | 0.025 |
| 25<> | 0.27 | ||||
| 50<> | 0.29 | ||||
| T>100 | 0.31 | ||||
daim ntawv thov
Boiler thiab Pressure Vessel FabricationASTM A515 Qib 70 yog dav siv nyob rau hauv kev tsim kho ntawm boilers, siab hlab ntsha, thiab tshav kub exchangers. Nws qhov sib xyaw ua ke ntawm lub zog nruab nrab thiab zoo weldability ua rau nws haum rau lub plhaub, lub taub hau, thiab lwm yam khoom siv siab uas ua haujlwm ntawm qhov kub txog li 650℃F (345 degree).
Cov khoom siv roj thiab roj ua haujlwm: Cov khoom siv yog ua haujlwm nyob rau hauv cov roj refineries, roj ua cov nroj tsuag, thiab petrochemical chaw rau fabricating txheej txheem nkoj, separators, thiab cia tanks. Nws muab kev txhim khu kev qha nyob rau hauv nruab nrab siab thiab kub tej yam kev mob ntsib nyob rau hauv cov kev lag luam.
Fais fab Generation Systems: Hauv cov chaw tsim hluav taws xob, ASTM A515 Qib 70 yog siv rau boiler nruas, headers, thiab lwm yam khoom siv. Nws muaj peev xwm tiv taus cyclic thermal stresses thiab tswj kev ncaj ncees ntawm qhov kub siab, txhawb kev tsim hluav taws xob zoo thiab nyab xeeb.
General Industrial Fabrication: Cov phaj steel yog siv rau hauv ntau yam kev lag luam, nrog rau cov txheej txheem kev txhawb nqa, cov tshuab hnyav, thiab cov khoom siv uas xav tau kev sib npaug ntawm lub zog thiab kev ua haujlwm zoo. Nws cov weldability tso cai rau kev tsim khoom thiab sib dhos.
Kev kho dej thiab dej khib nyiab: Nws yog siv rau hauv kev tsim cov tank, clarifiers, thiab cov hlab ntsha siab rau cov nroj tsuag kho dej. Cov khoom siv ua haujlwm ntev thiab ua haujlwm rau nruab nrab corrosion nyob rau hauv cov dej ib puag ncig ua rau nws yog ib qho kev xaiv zoo rau xws li infrastructure.
qhov zoo
Zoo zog thiab toughness:
ASTM A515 Qib 70 muab kev sib xyaw ua ke ntawm lub zog thiab lub zog, ua kom nws tuaj yeem tiv taus siab nruab nrab thiab qhov kub thiab txias feem ntau pom nyob rau hauv daim ntawv thov ntawm cov hlab ntsha.
Weldability zoo heev:
Cov hlau yog yooj yim weldable siv cov txheej txheem fusion vuam txheej txheem, tso cai rau kev ua haujlwm zoo ntawm cov boilers, cov hlab ntsha siab, thiab lwm cov qauv welded yam tsis muaj kev cuam tshuam kev sib koom ua ke.
Txhim khu kev ua tau zoo ntawm qhov kub siab:
Nws tuav nws cov cuab yeej cuab tam ntawm qhov kub nruab nrab, ua rau nws tsim nyog rau kev pab cuam hauv boilers thiab cov khoom siv ua kom sov.
Nqi-Cov txiaj ntsig:
Raws li cov pa roj carbon-manganese hlau, nws muaj kev ua tau zoo ntawm tus nqi qis, ua rau nws xaiv kev lag luam rau ntau lub nkoj siab thiab kev lag luam.
Muaj dav thiab tsim qauv zoo:
Ua tau raws li kev lees paub dav dav ASTM specification, nws tau yooj yim muaj thiab nkag siab zoo los ntawm fabricators, engineers, thiab inspectors, kom ntseeg tau tias zoo ib yam thiab yooj yim ntawm kev yuav khoom.
Vim Li Cas 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.
Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
Dab tsi yog qhov kub siab tshaj plaws ASTM A515 Qib 70 tuaj yeem tiv taus tsis tu ncua?
Nws tuaj yeem tiv taus qhov kub thiab txias mus txog 650 ° F (343 ° C). Ntawm qhov kub siab tshaj qhov no, nws lub zog tensile thiab creep tsis kam txo, uas ua rau cov cuab yeej tsis ua haujlwm dhau sijhawm.
Cov kev tswj xyuas zoo li cas thaum lub sij hawm tsim khoom ntawm ASTM A515 Qib 70?
Kev tswj kom zoo muaj xws li tshuaj lom neeg kev tshuaj ntsuam xyuas, kev ntsuam xyuas cov cuab yeej cuab tam (tensile, khoov, cuam tshuam), kev tshuaj xyuas qhov muag, thiab tsis yog -kev kuaj kev puas tsuaj (NDT) zoo li kev kuaj ultrasonic txhawm rau kuaj xyuas qhov tsis xws luag thiab xyuas kom ua raws li cov qauv.
Puas yog ASTM A515 Qib 70 siv hauv kev lag luam roj thiab roj?
Yog, nws yog dav siv hauv kev lag luam roj thiab roj. Nws yog siv los ua cov tso tsheb hlau luam, cov hlab ntsha siab, thiab cov kav dej rau cov roj av, roj av, thiab cov khoom ua kom zoo, ua tsaug rau nws lub zog thiab kev sib txuas.
Dab tsi yog qhov modulus ntawm elasticity rau ASTM A515 Qib 70?
Lub modulus ntawm elasticity yog kwv yees li 29,000 ksi (200 GPa) ntawm chav tsev kub. Tus nqi no sawv cev rau cov khoom tawv, qhia tias nws yuav deform npaum li cas nyob rau hauv ib tug muab load nyob rau hauv nws elastic ntau yam.
ASTM A515 Qib 70 puas tuaj yeem siv rau boiler raj?
Nws feem ntau yog siv rau boiler shells thiab siab hlab phaj es tsis yog boiler hlab. Boiler raj feem ntau xav tau cov ntaub ntawv nrog kev nkag siab dua thiab thermal conductivity, xws li ASTM A106 Qib B.
Poisson tus piv ntawm ASTM A515 Qib 70 yog dab tsi?
Poisson tus piv yog kwv yees li 0.3 ntawm chav tsev kub. Qhov piv no piav qhia txog cov khoom siv sab nraud (expansion / contraction) txheeb ze rau nws cov axial strain thaum raug tensile lossis compressive loads.
Puas yog ASTM A515 Qib 70 muaj nyob rau hauv daim ntawv coil?
Nws tsis tshua muaj nyob rau hauv daim ntawv coil. Nws yog feem ntau muab los ua daim hlau vim tias nws cov ntawv thov tseem ceeb (cov hlab ntsha siab, cov boilers) yuav tsum tau cov ntaub ntawv tiaj tus, tuab uas yooj yim rau kev lis thiab tsim los ntawm daim hlau.
Lub thermal conductivity ntawm ASTM A515 Qib 70 yog dab tsi?
Lub thermal conductivity yog kwv yees li 26 Btu / (ft·hr·℃F) (45 W / (m·K)) ntawm chav tsev kub. Cov cuab yeej no txiav txim siab seb cov khoom siv hluav taws xob zoo npaum li cas, uas yog qhov tseem ceeb rau siab -cov ntawv thov kev pabcuam kub.
ASTM A515 Qib 70 puas tuaj yeem koom nrog brazing?
Thaum brazing yog technically ua tau, vuam yog txoj kev nyiam koom rau ASTM A515 Qib 70. Brazing tej zaum yuav tsis muab tib lub zog thiab kev ncaj ncees li vuam, uas yog ib qho tseem ceeb rau siab -cov khoom.
Dab tsi yog qhov tsis zoo uas yuav tsum tau zam hauv ASTM A515 Qib 70 steel daim hlau?
Feem ntau qhov tsis xws luag kom tsis txhob muaj cov kab nrib pleb, suav nrog, porosity, thiab laminations. Cov kev tsis zoo no tuaj yeem txo cov khoom siv lub zog, toughness, thiab weldability, cuam tshuam kev nyab xeeb thiab kev ua haujlwm ntawm cov khoom siv zaum kawg.