Nyob rau hauv lub ntiaj teb no ntawm cov qib steel tshwj xeeb rau cov hlab ntsha siab thiab lub tog raj kheej roj, ob lub npe nquag tshwm sim raws li kev lag luam nyiam: SG295 steel thiab HP295 steel.
Txawm hais tias cov ntaub ntawv no yuav zoo sib xws thaum xub thawj siab ib muag, nkag siab txog lawv qhov sib txawv tseem ceeb, kev qhia tshwj xeeb, thiab cov ntawv thov zoo tshaj plaws yog qhov tseem ceeb rau cov engineers, manufacturers, thiab cov kws tshaj lij kev muag khoom ua haujlwm nrog cov khoom ntim roj.
Nkag siab txog Cov Ntsiab Cai
SG295 Steel yog dab tsi?
SG295 steel yog cov qauv kev lag luam Nyij Pooj (JIS) qib tshwj xeeb tsim rau cov welded roj thooj voos kheej kheej. Tsim los ntawm JIS G3116, cov hlau no nthuav tawm lub zog zoo heev, tsim tau, thiab vuam cov yam ntxwv, ua rau nws zoo tagnrho rau cov pa roj carbon monoxide. Lub "SG" nyob rau hauv nws lub npe sawv cev rau "Steel Gas," thaum lub "295" qhia nws yam tsawg kawg nkaus yield zog ntawm 295 MPa.
SG295 tau txais kev lees paub thoob ntiaj teb, nrog ntau lub tuam txhab xa tawm mus rau cov lag luam Esxias sab hnub tuaj thiab dhau mus rau kev tsim cov hlab ntsha siab, cov thawv roj, thiab cov hluav taws tua hluav taws. Nws cov khoom sib npaug thiab kev ntseeg siab tau ua rau nws qhov kev xaiv zoo tshaj plaws rau cov ntawv thov tseem ceeb uas tsis ua haujlwm tsis yog qhov kev xaiv.
SG295 Hlau vs HP295 Hlau
HP295 steel ntog nyob rau hauv Suav GB tus qauv (GB6653) thiab yog dav siv rau welded gas cylinders nyob rau hauv ntau daim ntawv thov kev lag luam. Lub npe "HP" yog muab los ntawm Suav cov ntsiab lus "Han" (welding) thiab "Ping" (lub raj mis), nrog "295" zoo ib yam sawv cev rau nws qhov tsawg kawg nkaus yield zog ntawm 295 MPa.
Cov qib steel no yog tus cwj pwm los ntawm nws cov tuab tuab, huv si, thiab cov ntsiab lus ntawm cov pa roj carbon tsawg, uas ua rau muaj cov yas zoo, tawv tawv, thiab kev ua haujlwm. Cov khoom no ua rau nws tsim tshwj xeeb rau kev tsim cov roj liquefied roj av (LPG) lub tog raj kheej thiab cov ntim roj acetylene.
| Dimension | SG295 hlau | HP 295 Hlau |
|---|---|---|
| Core Standard | JIS G3116 (Nyiv tus qauv) | GB 6653 (Suav teb chaws tus qauv) |
| Lub npe keeb kwm | "SG"=Hlau rau Gas; "295"=Tawm Zog (295 MPa) | "HP"=Kub-khoov hlau rau siab Vessels; "295"=Tawm Zog (295 MPa) |
| Daim ntawv thov tseem ceeb | Welded LPG/acetylene cylinders, me me - mus rau - cov hlab ntsha nruab nrab (<500L) | Welded LPG lub tog raj kheej, siab -thov siab cov hlab ntsha xav tau kev nyab xeeb nruj nruj |
| Ua lag luam tsom | Kev lag luam thoob ntiaj teb (Southeast Asia, thoob ntiaj teb xa tawm) | Kev lag luam hauv Suav teb, cov phiaj xwm yuav tsum tau ua raws li Suav tus qauv |
Kev sib piv: SG295 Steel vs HP295 Steel
Tshuaj muaj pes tsawg leeg
| Element | SG295 (JIS G3116) | HP 295 (GB 6653) |
|---|---|---|
| Cov pa roj carbon (C) | ≤ 0.20% | ≤0.18% (tso carbon tswj) |
| Silicon (Si) | ≤ 0.35% | ≤0.10% (qis silicon, qis oxide txaus) |
| Manganese (Mn) | ≤ 1.00% | ≤1.00% (qhov sib npaug) |
| Phosphorus (P) | ≤ 0.030–0.040% | ≤0.025% (kev tswj nruj dua, qis qis qis qis qis) |
| Sulfur (S) | ≤ 0.030–0.040% | ≤0.015% (ultra-tsawg, zoo dua vuam huv) |
| Aluminium (Al) | Tsis tau teev tseg | ≥0.015% (ntxiv rau cov nplej zoo, txhim kho toughness) |
| Alloy Ntxiv | Tsis muaj (plain carbon steel) | Nb/V/Ti xaiv tau (microalloyed rau txhim kho lub zog-toughness tshuav) |
Qhov qis phosphorus thiab sulfur txwv nyob rau hauv HP295 steel pab txhawb kev txhim kho purity thiab txhim kho vuam kev ua tau zoo, thaum lub ntsiab lus txhuas cov ntsiab lus pab nrog cov nplej refinement thaum lub sij hawm ua.
Mechanical Properties
| Khoom | SIB 295 | HP 295 |
|---|---|---|
| Yield zog (Rp0.2) | ≥295 MPa | ≥295 MPa (ib leeg) |
| Tensile zog | ≥440 MPa | 440-560 MPa (ntau dua, siab dua txwv) |
| Elongation (A) | ≥26% | ≥20% (tsawg dua, tab sis txaus rau lub tog raj kheej sib sau) |
| Khoov Performance | 180 ° khoov, sab hauv vojvoog ≥1.5a | 180 ° khoov, sab hauv lub vojvoog ≥1.5a (ua kom zoo sib xws) |
| Impact Toughness (Tsawg-Temp) | Tsis tau qhia meej meej | Zoo heev low -temp toughness (tiv taus nkig tawg hauv qhov chaw txias) |
| Carbon sib npaug (Ceq) | Siab dua (vim siab dua C/Si) | qis (≤0.45%, weldability zoo dua) |
Qhov dav me ntsis tensile lub zog ntau rau HP295 steel (440-560 MPa) piv rau SG295 (440-540 MPa) muab cov tuam txhab muaj kev hloov pauv ntau dua hauv kev ua haujlwm thaum tswj cov yam ntxwv ntawm lub zog xav tau.
Manufacturing thiab processing yam ntxwv
Formability thiab Performance
Ob leeg SG295 thiab HP295 steels qhia tau zoo heev formability, uas yog ib qho tseem ceeb rau qhov sib sib zog nqus- cov txheej txheem kos duab koom nrog hauv kev tsim roj cylinder. Txawm li cas los xij, cov kev hloov pauv tshwj xeeb tuaj yeem tsim kho kom muaj txiaj ntsig zoo dua qub.
Piv txwv li, cov qauv tshwj xeeb ntawm cov hlau no tuaj yeem tsim nrog cov elongation siab mus txog 38-44%, ntau tshaj li cov qauv kev cai thiab muab kev txhim kho formability rau cov duab nyuaj. Qhov kev txhim kho ductility no tau ua tiav los ntawm kev ua tib zoo tswj kev tswj hwm thiab kev tsim cov txheej txheem ua haujlwm zoo.
Cov yam ntxwv ntawm Microstructural
Cov khoom siv microstructural ntawm cov hlau no ua rau muaj txiaj ntsig zoo rau lawv cov kev ua tau zoo. HP295 steel feem ntau muaj cov qauv microstructure uas yog feem ntau ntawm ferrite thiab ib qho me me ntawm pearlite, nrog cov qoob loo zoo tshaj qib 9 thiab kheej kheej cov khoom faib tawm ntawm 3-5μm.
Qhov no homogeneous microstructure nrog nplua grain loj pab rau cov hlau qhov zoo heev sib sib zog nqus nqus kev ua tau zoo, nrog ib tug nruab nrab n-tus nqi (strain hardening exponent) ntawm 0.183 thiab qhov nruab nrab r-tus nqi (yas strain ratio) ntawm 0.825. Qhov qis Δr-tus nqi (-0.016) qhia tias tus cwj pwm anisotropic tsawg tsawg, ua kom muaj kev sib haum xeeb hauv txhua qhov kev qhia.
| Yam | SIB 295 | HP 295 |
|---|---|---|
| Weldability | Zoo (dawb carbon hlau, sib xws nrog MAG / SAW) | Qhov zoo tshaj plaws (qis Ceq, ultra{0}} qis P / S; tsis xav tau preheating rau thickness ≤10mm; tsis tshua muaj kev kub ntxhov tawg) |
| Weld Consistency | Cov pob qij txha ruaj khov, ua tau raws li JIS cov qauv | Lub zog sib koom ua ke ≥90% ntawm cov hlau puag, sib txuam toughness; zoo tagnrho rau kev rov ua haujlwm siab |
| Formability | Zoo txias dabtsi yog khoov / stamping, siab dhau tus nqi | Zoo formability, haum rau siab - ceev automated kab; qis qis tus nqi (<2%) |
| Txheej txheem Adaptability | Haum rau cov pa welding / sib sau | Optimized rau automated huab hwm coj ntau lawm, sib xws nrog advanced vuam (plasma, SAW) |
Daim ntawv thov thiab siv Case
Cov ntawv thov siv
Ob leeg SG295 thiab HP295 steels feem ntau yog siv rau kev tsim khoom:
- Liquefied petroleum gas (LPG) lub tog raj kheej
- Acetylene roj fwj
- Ntau yam propane ntim
- Cov hluav taws tua hluav taws
- Lwm cov hlab ntsha uas muaj peev xwm dej tsis tshaj 500 litres
Cov ntawv thov tshwj xeeb
Nrog kev nce qib hauv kev tsim thev naus laus zis, cov hlau no tau pom cov ntawv thov hauv cov haujlwm tshwj xeeb. Piv txwv li, SG295 kub- dov siab elongation tus nqi roj lub tog raj kheej steel yog siv rau sib sib zog nqus-cov kaus poom roj ntxuav tom qab pickling, yuav tsum tau lav lub zog thiab siab elongation tus nqi.
Kev txiav txim siab xaiv: SG295 Steel vS HP295 Hlau
Thaum xaiv SG295 Steel
Ua haujlwm nrog cov haujlwm thoob ntiaj teb xav tau JIS cov ntaub ntawv txheem
Muab khoom rau Japanese OEMs lossis lawv cov koom haum
Kev tsim khoom rau kev lag luam uas lees paub JIS cov qauv
Ua haujlwm nrog cov qauv uas twb muaj lawm tau teev tseg rau SG295 cov ntaub ntawv
Kev txiav txim siab xaiv: SG295 Hlau VS HP295 Hlau
Thaum xaiv HP295 Steel
Muab khoom rau Suav lag luam lossis manufacturers
Ua haujlwm nrog GB tus qauv- qauv tsim
Lower sulfur thiab phosphorus cov ntsiab lus yog qhov zoo rau kev vuam
Kev tswj xyuas nruj nruj yog xav tau rau cov ntawv thov tseem ceeb
Xaus
Ob leeg SG295 thiab HP295 steels muaj cov yam ntxwv ua tau zoo rau lub tog raj kheej roj thiab cov hlab ntsha siab. Thaum lawv sib koom ntau qhov sib xws hauv cov khoom siv tshuab thiab kev siv, lawv qhov sib txawv ntawm cov qauv tshuaj muaj pes tsawg leeg thiab kev lees paub hauv cheeb tsam tuaj yeem cuam tshuam rau kev xaiv rau cov haujlwm tshwj xeeb.
NtawmGNEE, peb ua haujlwm hauv lub xeev - ntawm -- kev tsim khoom tsim khoom tsim ua kom ntseeg tau tias txhua pawg ntawm cov phaj steel peb tsim muaj cov qauv zoo ib yam thiab zoo tshaj qhov saum npoo. Los ntawm kev xaiv cov chaw tsim khoom ncaj qha xws liGNEE, koj tau txais txiaj ntsig los ntawm lub Hoobkas - tus nqi ncaj qha thiab kev tswj xyuas zoo uas cov neeg lag luam nruab nrab tsis tuaj yeem muab.
Lub sij hawm xa tuaj rau HP295 roj lub tog raj kheej steel xaj yog dab tsi?
HP295 roj lub tog raj kheej steel lub sij hawm yog feem ntau 15-30 hnub.
Koj puas muaj Tshuag ntawm HP295 roj lub tog raj kheej steel?
Yog lawm, peb khaws cov khoom lag luam rau HP295 roj lub tog raj kheej steel ntau thiab tsawg.
Koj puas tuaj yeem muab cov ntim loj HP295 roj lub tog raj kheej steel xaj?
Yog, peb muaj peev xwm ua tau ntau yam khoom.
Puas yog ntev - lub sij hawm muab ntawm HP295 roj lub tog raj kheej steel ruaj khov?
Yog lawm, GNEE ua kom ruaj khov rau kev koom tes ntev -.
MOQ rau HP295 roj lub tog raj kheej hlau yog dab tsi?
MOQ yog hloov tau raws li qhov tshwj xeeb.
Yam dab tsi cuam tshuam rau HP295 roj lub tog raj kheej steel nqi?
Raw khoom nqi, thickness, thiab txiav txim kom muaj nuj nqis cuam tshuam tus nqi.
Puas yog HP295 roj lub tog raj kheej steel nqi- zoo rau cov tuam txhab?
Yog, nws txo tag nrho cov nqi tsim khoom los ntawm kev txhim kho efficiency.
Koj puas muab cov luv nqi rau ntau HP295 roj lub tog raj kheej steel xaj?
Yog, tus nqi sib tw muaj nyob rau ntau qhov ntau.
