Raws li cov chaw tsim khoom steel txij li xyoo 2008, GNEE tshwj xeeb hauv kev muab cov khoom zoo siab - cov qauv steel phaj zoo rau kev lag luam thoob ntiaj teb nrog rau kev tsim kho, lub zog, kev tsim nkoj, thiab cov tshuab hnyav.
Yog tias koj xaiv ntawm cov xwm txheej sib txawv, nkag siab txog qhovS355J2+AR vsS355J2+N steel phajkev sib piv yog qhov tseem ceeb.S355J2+AR vs S355J2+N steel phajQhov sib txawv cuam tshuam ncaj qha rau kev ua haujlwm, kev nyab xeeb, thiab tus nqi, tshwj xeeb tshaj yog rau cov haujlwm uas muaj qhov kub thiab txias lossis hnyav hnyav.
S355J2+AR vs S355J2+N Steel Phaj - Lub ntsiab txhais thiab qhov sib txawv ntawm cov tub ntxhais
S355J2+AR thiab S355J2+N yog ob qho tib si txhais raws li EN 10025-2 tus qauv steel qauv, nrog cov ntsiab lus zoo tib yam qib qib:
- S355 → Yam tsawg kawg nkaus tawm lub zog ntawm 355 MPa
- J2 → Impact test ntawm -20℃(Ntau dua lossis sib npaug rau 27 Joules)
Qhov txawv yog nyob rau hauv qhov kev xa khoom:
- S355J2+AR (Raws li Rolled):Muab ncaj qha tom qab kub dov yam tsis muaj kev kho cua sov ntxiv
- S355J2+N (Normalized):Muab tom qab normalizing kev kho cua sov txheej txheem
Qhov kev kho cua sov no yog qhov tseem ceeb tshaj plaws uas paub qhov txawv ntawm lawv cov qauv sab hauv thiab kev ntseeg tau ntawm txhua yam.
S355J2+AR (Raws li Rolled)
- Kev kho cua sov: "AR" sawv cev rau "raws li dov", txhais tau hais tias cov hlau yog kub dov yam tsis muaj kev kho cua sov ntxiv.
- Cov yam ntxwv: Cov hlau khaws cia nws lub zog qub li dov, tab sis nws cov tawv tawv thiab ductility yuav qis dua me ntsis, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias.
- Daim ntawv thov: Haum rau cov hlau toughness uas yuav tsum tau tsis yog lub sijhawm siab, xws li cov khoom siv dav dav, cov khoom siv hauv tsev, cov khoom siv tshuab yooj yim.
S355J2+N (Normalized)
- Kev kho cua sov lub xeev: "N" sawv cev rau "Normalized", uas yog txheej txheem ntawm cua sov cov hlau mus rau qhov kub thiab txias thiab tom qab ntawd txias hauv huab cua.
- Yam ntxwv: Normalizing ua rau steel grain finer thiab txhim kho nws toughness, ductility thiab cuam tshuam tsis kam. cov khoom siv kho tshuab ntawm S355J2+N yog ntau hom thiab ruaj khov.
- Daim ntawv thov: Nws yog qhov tsim nyog rau cov khoom siv nrog cov kev xav tau siab ntawm cov khoom siv kho tshuab, xws li txuas hniav, cov tsev hnyav, cov cuab yeej siv tshuab thiab cov khoom siv welded.
S355J2+AR vs S355J2+N Steel Phaj - Kev sib piv tshuaj lom neeg
Hom tshuaj muaj pes tsawg leeg (%)
| Element | S355J2+AR | S355J2+N |
|---|---|---|
| C | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug li 0.24 |
| Mn | Tsawg dua lossis sib npaug li 1.60 | Tsawg dua lossis sib npaug li 1.60 |
| Si | Tsawg dua los yog sib npaug li 0.55 | Tsawg dua los yog sib npaug li 0.55 |
| P | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.025 |
| S | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.025 |
Ob qib ua raws tib tus qauv EN, lub ntsiab luslawv cov tshuaj muaj pes tsawg leeg yeej tseem zoo tib yam.
Qhov Kev Pom Zoo ntawm Kev Sib Sau
Qhov sib txawv tiag tiag tsis yog hauv chemistry, tab sis hauvua thiab microstructure, uas cuam tshuam rau cov neeg kho tshuab tus cwj pwm hauv kev siv tswv yim.
S355J2+AR vs S355J2+N Steel Phaj – Mechanical Properties and Performance
Mechanical Property Comparison
| Khoom | S355J2+AR | S355J2+N |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug li 355 MPa | Ntau dua lossis sib npaug li 355 MPa |
| Tensile zog | 470-630 MPa | 470-630 MPa |
| Lub zog cuam tshuam (-20 degree) | Ntau dua lossis sib npaug li 27 J | Ntau dua lossis sib npaug li 27 J |
| Toughness stability | Nruab nrab | Siab |
- Lub zog: Lub zog ntawm ob qho khoom lag luam belongs rau S355J2 tus qauv thiab feem ntau zoo sib xws.
- Toughness thiab ductility: S355J2+N tau zoo dua toughness thiab ductility los ntawm normalizing, tshwj xeeb tshaj yog nyob rau hauv qis kub.
- Weldability: Ob leeg muaj qhov zoo weldability, tab sis S355J2+N yog ruaj khov dua thaum vuam tuab daim hlau
S355J2+AR vs S355J2+N Steel Phaj - Kev Tsim Nyog Qhov Sib Txawv
S355J2+AR Txheej txheem ntau lawm
- Kub dov
- Ntuj cua txias
- Tsis muaj kev kho cua sov ntxiv
S355J2+N Production Process
- Kub dov
- Normalizing ntawm ~ 900 degree
- Tswj cua txias
Kev cuam tshuam ntawm Normalizing
Normalization ua rau:
- Refined grain qauv
- Txo kev ntxhov siab sab hauv
- Txhim kho txhua yam sib xws
Cov txheej txheem no tseem ceeb tshwj xeeb rau cov phaj tuab thiab kev nyab xeeb- cov ntawv thov tseem ceeb.
S355J2+AR vs S355J2+N Steel Phaj - Daim Ntawv Thov Scenario
S355J2+AR Applications
- Kev tsim vaj tsev dav dav
- Steel ncej thiab kab teeb
- Machinery Cheebtsam nrog kev ntxhov siab me ntsis
- Fabricated qhov chaw
S355J2+N Applications
- Txuas hniav thiab infrastructure
- Offshore platforms
- Cov hlab ntsha siab
- Cov cuab yeej hnyav
- Tsawg- qhov kub thiab txias
S355J2+AR vs S355J2+N Steel Phaj - Qhov zoo sib piv
Qhov zoo ntawm S355J2+AR
- Tsawg tus nqi tsim khoom
- Lub sijhawm xa khoom sai dua
- Haum rau kev siv tus qauv tsim
Qhov zoo ntawm S355J2+N
- Ntau dua toughness thiab kev ntseeg tau
- Kev ua haujlwm vuam zoo dua
- Txhim khu kev ruaj ntseg margin
- Haum rau cov haujlwm tseem ceeb engineering
S355J2+AR vs S355J2+N Steel Phaj - Cov Lus Qhia Xaiv
Xaiv cov qib zoo nyob ntawm koj qhov project yuav tsum:
Xaiv S355J2+AR yog:
- Nyiaj txiag yog qhov tseem ceeb
- Daim ntawv thov tsis muaj kev nyab xeeb - tseem ceeb
- Cov kev ua haujlwm tsis zoo
Xaiv S355J2+N yog:
- Yuav tsum muaj kev nyab xeeb thiab kev ntseeg siab
- Phaj thickness yog loj
- Tsawg-kev ua haujlwm kub yog qhov tseem ceeb
- Vuam zoo yog qhov tseem ceeb
S355J2+AR vs S355J2+N Steel Phaj - Parameter Table
| Parameter | S355J2+AR | S355J2+N |
|---|---|---|
| Txuj | TS EN 10025-2 | TS EN 10025-2 |
| Kev Xa Khoom | Raws li Rolled (AR) | Normalized (N) |
| Kev kho cua sov | Tsis muaj | normalizing |
| Grain Structure | Coarser | Fine & uniform |
| Toughness | Nruab nrab | Siab |
| Weldability | Zoo | Zoo heev |
| Nqi | qis | Siab dua |
| Cov ntawv thov tseem ceeb | Cov qauv dav dav | Cov qauv tseem ceeb |
S355J2+AR vs S355J2+N Steel Phaj – Vim Li Cas Xaiv GNEE?
GNEE yog ib tug ntseeg steel tsum nrog muaj zog tsim thiab export peev xwm:
- 150+ cov neeg ua haujlwm txawj
- 30,000 tons txhua xyoo muaj peev xwm
- Cov cuab yeej ntsuas qib siab (UT, cuam tshuam kev sim, ntsuas tensile)
- Kev nruj nruj raws li EN, ASTM, ISO cov qauv
- OEM & ODM customization muaj
- Kev xa khoom sai thiab kev txhawb nqa thoob ntiaj teb
Peb muab tsis tau tsuas yog cov khoom, tab sistxhim khu kev qha engineering daws teeb meemrau koj lub lag luam.
S355J2+AR vs S355J2+N Steel Phaj - Xaus
Hauv kev xaus, lubS355J2+AR vs S355J2+N steel phajKev sib piv qhia tau hais tias thaum ob qib sib koom tib yam tshuaj muaj pes tsawg leeg thiab qib zog, lawv qhov kev ua tau zoo sib txawv vim kev kho cua sov.
S355J2+AR yog qhov zoo tshaj plaws rau tus nqi-sensitive, kev siv dav dav, whereas S355J2+N muaj cov tawv tawv zoo dua, sib xws, thiab kev nyab xeeb rau cov haujlwm xav tau.
Yog tias koj tseem tsis paub meej tias qib twg haum koj cov kev xav tau, GNEE nyob ntawm no los pab.Tiv tauj peb hnub no kom tau txais cov kws tshaj lij kev taw qhia, tus nqi sib tw, thiab cov lus hais ceev ceev rau S355J2+AR vs S355J2+N steel phaj- cia peb txhawb koj txoj haujlwm ua tiav!
Qhov txawv ntawm S355J2 N thiab S355J2 AR yog dab tsi?
S355J2 +AR steel phaj thiab S355J2+ N steel phaj txawv feem ntau los ntawm kev xa khoom thaum muab khoom, nrog rauS355J2+AR steel phaj raug xa raws li Rolled, thiab S355J2+N steel phaj raug xa tom qab normalizing cua sov kho.
Dab tsi yog qhov sib npaug rau S355J2 N steel?
ASTM A572 Qib 50 (USA): Siv dav hauv kev tsim kho thiab kev siv cov qauv. Sib piv lub zog thiab tshuaj muaj pes tsawg leeg rau S355J2+N. DIN St52-3 (Lub teb chaws Yelemees): Paub txog nws cov weldability zoo heev thiab zoo txias-forming zog.
Qhov txawv ntawm S355J2 thiab S355NL yog dab tsi?
S355J2: Requires preheating for thick sections (>30 mm). S355NL: weldability zoo dua vim cov nplej zoo thiab tsis muaj impurities; haum rau qhov tseem ceeb welds yam tsis muaj preheating. Xaiv S355J2 rau tus nqi- siv tau, dav dav- lub hom phiaj cov qauv hauv cov huab cua nruab nrab.
Qhov txawv ntawm S355JR thiab S355JR AR yog dab tsi?
S355JR muaj lub zog tawm los tsawg kawg yog 355N / hli2thiab tau dhau los ntawm charpy impact test, uas piav qhia txog JR faib rau lub npe raws li qhov kev xeem tau ua ntawm 27J (Joules) ntawm chav tsev kub.S355AR muaj lub zog zoo ib yam li S355JR, tab sis AR txhais tau hais tias nws raug muag hauv 'raws li dov mob'
Dab tsi yog cov yam ntxwv ntawm S355J2 N?
S355j2+n Mechanical Properties
S355j2+n muaj cov khoom siv kho tshuab zoo. Cov modules muaj atensile lub zog ntawm 490 txog 630 N / mm2 nrog lub zog tawm los ntawm 355 txog 550 N / mm2. Lawv tuaj yeem yooj yim elongated los ntawm tsawg kawg yog 22%. Cov khoom siv ntau yam no muaj qhov ceev ntawm 7.80g / cc.
J2 txhais li cas hauv S355J2?
Kub-rolled structural steel. Tsab ntawv S (S=Cov Qauv), ua raws li tus lej uas qhia tias muaj zog yield (qhov no 355).J2 qhia qhov cuam tshuam tsawg kawg nkaus ntawm 27 Jourles (J) ntawm qhov ntsuas kub ntawm -20 degree. N qhia tau hais tias ib tug normalized dov mob.
Lub ntsiab lus ntawm S355JR N yog dab tsi?
S355JR+N yogib tug qauv uas txhais cov kev cai rau normalized structural steel qib S355JR. Cov txheej txheem European sib raug rau S355JR yog EN10255. Lub "+N" hauv lub npe qhia tias nws yog normalized thiab tempered, uas txhim kho nws cov khoom siv kho tshuab.
