Puas yog SA515 Qib 70 muaj nyob rau hauv daim ntawv coil?

ASME SA515 Qib 70(tseem hu uaASTM A515 Gr70) yog lub siab -lub zog carbon- silicon steel phaj tshwj xeeb tsim raunruab nrab thiab siab dua -kev pabcuam kubhauv boilers thiab lwm cov hlab ntsha siab.

SA515 GR.70 Tshuaj muaj pes tsawg leeg

SA515 GR.70 Mechanical Property

Daim ntawv thov

Kev lag luam tsim hluav taws xob: Nws yog cov khoom tseem ceeb rau thermal fais fab nroj tsuag, feem ntau yog siv los tsim boiler nruas, header shells thiab siab - cua sov. Cov khoom siv no ua haujlwm qis dua 300-400℃thiab 9-12MPa, thiab cov khoom siv lub zog kub kub thiab oxidation tsis kam ua kom ruaj khov. Nws kuj tseem siv rau hauv kev pabcuam ntawm cov chaw tsim hluav taws xob nuclear, xws li deaerator dej tso tsheb hlau luam, txo cov nqi thaum ua tau raws li qhov yuav tsum tau ua.

Kev lag luam Petrochemical: Dav siv nyob rau hauv nruab nrab - cov hlab ntsha thiab cov cua kub exchangers. Nws yog tsim rau hydrogenation refining reactors (300-}380 degree, 4-8MPa) thiab catalytic cracking regenerators, nrog zoo tsis kam mus rau me ntsis hydrogen sulfide corrosion. Nws kuj yog siv los ua cov plhaub ntawm lub plhaub-thiab-tube kub exchangers, featuring zoo weldability nrog stainless hlau hlab.

Environmental Protection thiab Industrial Boiler Fields: Siv rau hauv khib nyiab incinerator theem nrab combustion chambers (resistant flue gas corrosion hauv qab 450 degree) thiab biomass fais fab nroj tsuag siab - kub combustion chamber guards. Hauv kev lag luam papermaking thiab textile, nws yog siv los tsim cov siab -cov kabmob ntawm cov boilers tshwj xeeb.

Lwm yam kev lag luam: Siv nyob rau hauv offshore roj drilling khoom, tshuaj cia tso tsheb hlau luam, kws tshuaj thiab mining machinery. Nws kuj tseem tsim nyog rau kev tsim cov condensers, cov khoom siv roj thiab cov menyuam kub vim nws hnav tsis kam thiab siab - kub stability.

qhov zoo

1. Siab -Tsuas Kub Stability

Creep Resistance: Nws txhob txwm ua ntxhib ntxhib ntxhib ntxhib ntxhib ua qauv muab kev tiv thaiv zoo rau kev nkag mus (deformation nyob rau hauv ntev -}lub sij hawm siab siab) ntawm qhov kub siab.

Graphitization Resistance: SA515 yog tsim los txo qis graphitization- cov txheej txheem degradation qhov twg carbon precipitates rau hauv graphite nodules tsis muaj zog nyob rau hauv lub caij ntuj sov- khaws cia cov hlau ruaj khov.

2. Lub zog & Durability

Qhov siab tshaj plaws Tensile Strength: Raws li qhov siab tshaj - qib zog hauv A515 qhov tshwj xeeb, nws muaj lub zog tensile ntawm 485-620 MPa, tso cai rau cov phab ntsa nyias nyias piv rau qib qis xws li Gr 60 lossis Gr 65 thaum tuav tib yam kev nyab xeeb.

Abrasion Resistance: Nws yog qhov tshwj xeeb ruaj khov thiab nthuav tawm zoo tiv thaiv hnav, uas yog qhov muaj txiaj ntsig zoo hauv kev lag luam hnyav xws li mining.

3. Fabrication & Nqi Efficiency

Weldability zoo heev: Nws cov tshuaj muaj pes tsawg leeg ua rau nws yooj yim weldable siv cov txheej txheem kev lag luam (SMAW, TIG, thiab lwm yam), txo cov kev ua haujlwm thiab kev ua haujlwm nyuaj.

Tus nqi-Kev ua tau zoo: Nws muab ib qho kev txhim khu kev qha thiab pheej yig dua rau siab- alloy lossis stainless hlau rau boilers thiab cov hlab ntsha siab uas tsis tas yuav muaj kev tiv thaiv corrosion.

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.

Hu rau tam sim no

Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.

Nyob rau hauv qhov kub ntau npaum li cas yog SA515 Qib 70 feem ntau siv?

SA515 Qib 70 feem ntau yog siv nyob rau hauv qhov kub ntawm -29℃rau 482℃(-20℃F txog 900℃F). Nws tuav zoo toughness thiab lub zog nyob rau hauv no ntau yam, haum rau qis mus rau nruab nrab kub siab lub nkoj kev pab cuam.

Puas yog SA515 Qib 70 weldable?

Yog lawm, SA515 Qib 70 muaj qhov zoo tshaj plaws weldability. Nws tuaj yeem welded siv ntau txoj hauv kev xws li SMAW (Shielded Hlau Arc Vuam), GMAW (Gas Metal Arc Vuam), thiab GTAW (Gas Tungsten Arc Vuam) yam tsis muaj preheating feem ntau.

Lub hardness ntawm SA515 Qib 70 yog dab tsi?

Brinell hardness (HB) ntawm SA515 Qib 70 feem ntau yog nyob nruab nrab ntawm 137 thiab 187 HB. Qhov nruab nrab hardness no sib npaug lub zog thiab ductility, ua rau nws yooj yim rau tshuab thiab tsim rau hauv cov hlab ntsha siab.

SA515 Qib 70 puas tuaj yeem siv rau cov ntawv thov cryogenic?

Tsis yog, nws tsis haum rau cov ntawv thov cryogenic (kub qis dua -29℃). Rau cov kev pabcuam cryogenic, SA516 Qib 70 (nrog cov ntsiab lus qis dua) lossis lwm yam hlau uas tsis tshua muaj kub yog nyiam kom tsis txhob tawg tawg.

Puas yog SA515 Qib 70 xav tau preheating ua ntej vuam?

Preheating tsis yog ib txwm tsim nyog tab sis nyob ntawm phaj thickness thiab ambient kub. Rau cov phaj tuab dua 25 hli los yog nyob rau hauv qhov chaw txias, preheating rau 60-150℃yog pom zoo kom tiv thaiv weld tawg thiab txhim kho toughness.

Dab tsi yog qhov yuav tsum tau elongation ntawm SA515 Qib 70?

SA515 Qib 70 yuav tsum muaj qhov tsawg kawg nkaus elongation ntawm 21% hauv 50 hli ntsuas qhov ntev. Qhov siab elongation no qhia tau hais tias zoo ductility, tso cai rau cov khoom kom deform yam tsis muaj kev ntxhov siab, tseem ceeb heev rau kev nyab xeeb ntawm cov hlab ntsha.

Yuav tshuaj xyuas SA515 Qib 70 daim hlau li cas?

Cov kev tshuaj ntsuam xyuas feem ntau suav nrog kev tshuaj xyuas qhov muag (VI), kuaj ultrasonic (UT) rau qhov tsis xws luag sab hauv, kuaj cov hlau nplaum sib nqus (MT) lossis kuaj cov kua dej nkag (PT) rau qhov tsis xws luag, xyuas kom ua raws li ASME cov qauv zoo.

Dab tsi yog qhov ceev ntawm SA515 Qib 70?

Qhov ceev ntawm SA515 Qib 70 yog kwv yees li 7.85 g / cm³ (0.283 lb / in³), tib yam li cov qauv carbon steel. Tus nqi no yog siv rau kev xam qhov hnyav hauv lub nkoj siab tsim thiab tsim khoom.

Dab tsi yog cov kev siv ntawm SA515 Qib 70?

Cov ntawv thov muaj xws li boiler nruas, ncu headers, cia tso tsheb hlau luam rau roj thiab roj, tshuaj reactors, thiab siab hlab ntsha nyob rau hauv lub hwj chim tiam, petrochemical, thiab refining industries, vim nws txhim khu kev qha siab - bearing muaj peev xwm.