s355nl vs 355j 2
Qhov txawv ntawm S355J2 thiab S355NL yog dab tsi?
S355NL yog ib qho normalized, zoo -cov hlau tsis muaj zog tshaj -kub toughness kuaj rau -50 degree, thaum S355J2 yog kub- dov steel nrog toughness kuaj rau -20 degree. Qhov sib txawv tseem ceeb yog S355NL kev txhim kho kev ua tau zoo hauv cov huab cua txias, ua rau nws tsim nyog rau cov ntawv thov xws li cov qauv sab nrauv, thaum S355J2 muaj kev lag luam ntau dua rau kev tsim kho hauv thaj chaw sov..
1. Impact Toughness:
S355J2: Qib no yog qhov nyuaj ntawm -20℃("J2" qhia tias nws tuaj yeem tiv taus qhov kev sim ntawm -20 degree). Qhov no ua rau nws haum rau siv nyob rau hauv nruab nrab mus rau txias ib puag ncig, qhov twg ib co℃ntawm toughness yuav tsum tau nyob rau hauv qis kub.
S355NL: Tus "NL" hauv S355NL sawv cev rau "Normalized" lossis "Normalized Rolling", thiab qib no yog tsim los rau qis - daim ntawv thov kub. Nws tau txhim kho qhov ua tau zoo ntawm -50 degree, ua rau nws zoo tagnrho rau siv nyob rau hauv qhov chaw txias heev lossis hauv cov ntawv thov uas yuav muaj qhov kub thiab txias.
2. Tsawg-Kev Ua Haujlwm Kub:
S355J2: Thaum nws tau tsim los tswj kom muaj zog zoo ntawm qhov kub thiab txias mus rau -20 degree, nws tsis yog tshwj xeeb rau qhov chaw txias heev.
S355NL: Ntawm qhov tod tes, S355NL tshwj xeeb yog tsim los rau qis -kub kev ua haujlwm thiab nthuav tawm cov tawv tawv zoo tshaj ntawm -50 degree, ua rau nws tsim nyog rau huab cua hnyav lossis kev siv tseem ceeb xws li cov qauv sab nrauv lossis qee yam khoom siv cryogenic.
3. Kev kho cua sov:
S355J2: Qib no feem ntau yog thermomechanically dov, thiab thaum nws muaj cov khoom siv zoo, nws tsis ua raws li cov txheej txheem tshwj xeeb los txhim kho toughness zoo li S355NL.
S355NL: S355NL yog ib txwm dov los yog normalized, uas yuav pab ua kom cov hlau lub microstructure thiab txhim khu nws toughness, tshwj xeeb tshaj yog nyob rau hauv qis - kub.
4. Tshuaj muaj pes tsawg leeg:
Ob qib muaj cov tshuaj lom neeg zoo sib xws, feem ntau suav nrog carbon, manganese, silicon, sulfur, thiab phosphorus. Txawm li cas los xij, S355NL tuaj yeem hloov kho me ntsis hauv nws cov tshuaj pleev ib ce los txhim kho nws qhov kev ua tau zoo nyob rau hauv qis - qhov kub thiab txias ib puag ncig, thaum S355J2 tau ua kom zoo rau kev siv cov qauv hauv nruab nrab huab cua.
5. Daim ntawv thov:
S355J2: Nws yog qhov tsim nyog rau cov qauv siv dav dav xws li cov tsev, txuas hniav, thiab cov tshuab uas yuav raug kub hnyiab tab sis tsis txias heev. Nws yog feem ntau siv nyob rau hauv nruab nrab - cov qauv muaj zog.
S355NL: Vim nws qhov kev txhim kho qis- qhov kub thiab txias, S355NL feem ntau yog siv rau hauv cov chaw sab nrauv, cov tso tsheb hlau luam, thiab cov txuas hniav uas cov khoom siv yuav tsum muaj kev ncaj ncees nyob rau hauv huab cua huab cua lossis kub, xws li nyob rau sab qaum teb lossis qaum teb huab cua.
S355NL sib npaug li cas?
S355NL steel yog European txheem hlau alloy structural siab - lub zog steel, normalized dov weldable nplua -grained structural steel phaj, sib npaug rauSuav steel qib Q345E series.
Cov khoom siv hlau sib npaug rau EN10025-3 S355NL qib
Suav steel qauv GB: Q345E
Nyiv tus qauv JIS: SEV245
American Standard ASTM: Type3 Qib 50
Dab tsi yog cov khoom ntawm S355NL cov khoom?
S355NL phaj
Qib steel no muaj nuj nqis rau nwslub zog, weldability thiab durability. Tus "S" hauv S355NL txhais tau hais tias nws yog hlau nrog "355" qhia qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa. Lub npe "NL" txhais tau hais tias nws tuaj nyob rau hauv ib qho xwm txheej tom qab kev kho cua sov los txhim kho nws cov khoom.
Dab tsi yog S355J2 cov khoom sib npaug hauv Suav teb?
Q345D
EN10025 S355J2 yog cov hlau tsis tshua muaj hlau feem ntau siv hauv Tebchaws Europe. EN10025 S355J2 qib sib npaug hauv Suav teb yogQ345D. Lawv cov tshuaj muaj pes tsawg leeg sib txawv me ntsis thiab cov khoom siv kho tshuab zoo sib xws.
Dab tsi yog 355 Jr khoom?
S355JR hlaumuaj lub zog siab -rau- qhov hnyav piv, ua rau nws haum rau kev siv hauv kev thauj khoom- cov kabmob xws li txuas hniav, vaj tse, thiab cov qauv sab nrauv. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 355 N / mm², ua rau nws yog ib qho ntawm cov qib steel muaj zog tshaj plaws.
Nyob rau hauv qhov thib ob, S355J2 steel phaj yuav tsum tau ua charpy impacting test ntawm qhov kub thiab txias rho tawm 20 Degree Celsius, tab sis S355NL steel phaj yuav tsum tau ua qhov kev xeem no ntawmQhov kub thiab txias tsis tshaj 50 Degree Celsiusnrog rau yam tsawg kawg nkaus zog tus nqi 27J ntawm longitudinal.
S355J2 sawv cev rau dab tsi?
Tus "S" hauv S355J2 qhia tias nws yog ib qhosteel qauv, thaum lub "355" qhia qhov tsawg kawg nkaus yield zog ntawm 355 MPa (51.5 ksi) rau thicknesses txog 16 hli. Cov lus "J2" txhais tau hais tias cov hlau tau raug sim rau qhov cuam tshuam rau qhov hnyav ntawm -20℃(-4℃F), kom ntseeg tau tias nws tsim nyog rau kev siv kub tsawg.
Q235 sib npaug rau JIS yog dab tsi?
SIB 400
Q235 steel tuaj yeem hloov nrog cov khoom sib npaug uas suav nrog A36 USA ASTM, Q235 Tuam Tshoj GB / T, thiabSS400 Nyab Laj / Nyiv JIS.
S235J2 khoom sib npaug yog dab tsi?
EN10025 S235J2 yog qib carbon steel nrog cov yam ntxwv zoo. Qee cov ntaub ntawv sib npaug rau EN10025 S235J2 carbon steel phaj suav nrog:ASTM A36: Ib qho kev siv dav hlau hauv Teb Chaws Asmeskas uas muaj cov khoom zoo sib xws ntawm lub zog tensile thiab lub zog tawm los.
Qhov txawv ntawm S355 Jr thiab s275 Jr yog dab tsi?
Raws li rau S275JR VS S355JR, qhov tseeb lawv tsis yog tib yam nkaus.S275JR yog carbon hlau, thaum S355JR yog cov hlau tsis tshua muaj hlau. Ob leeg carbon steel S275JR thiab S355JR qis alloy steel yog nyob rau hauv EN10025-2 tus qauv. S355JR cov hlau tsis tshua muaj hlau yog qib steel siab dua li cov hlau S275JR.
sib npaug rau s355jr steel Txheej txheem cej luam ntawm S355JR
S355JR yog European tus qauv qib rau kub- dov cov qauv hlau nrog qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa. Nws qhov sib npaug hauv lwm cov qauv muab cov khoom zoo sib xws rau kev xa khoom thoob ntiaj teb. Cov khoom sib npaug xws li ASTM A572 Qib 50 (USA), DIN ST52-3 (Lub Tebchaws Yelemees), JIS SM490A (Nyiv), thiab GB Q345B (Tuam Tshoj). Gangsteel muab S355JR nrog qhov sib npaug xws li EN 10025-2 S355J0 thiab EN 10025-2 S235J0, kom ntseeg tau CE cim ua raws.
sib npaug rau s355jr steel Qib Mapping
S355JR muaj qhov sib npaug ncaj qha raws li lub zog thiab toughness. Cov lus hauv qab no qhia nws rau cov qauv tseem ceeb:
|
Txuj |
Qib sib npaug |
Sau ntawv |
|---|---|---|
|
ASTM (USA) |
A572 Qib 50 |
Zoo sib xws lub zog rau kev tsim kho. |
|
DIN (Lub teb chaws Yelemees) |
TSI 52-3 |
Sib npaug txhua yam khoom. |
|
JIS (Nyiv) |
SWB 490A |
Rau welded qauv. |
|
GB (Tuam Tshoj) |
Q345B |
Kev sib tw tawm los thiab cuam tshuam. |
|
NFA (Fabkis) |
E36-2 |
Rau kev tsim kho kev siv. |
|
UNI (Ltalis) |
Ib 510 B |
Sib piv tensile zog. |
|
BS (UK) |
50 B |
Rau welded qauv. |
|
UNE (Spain) |
AB 355 B |
Cov yam ntxwv zoo sib xws. |
Cov Ntsiab Lus Tseem Ceeb ntawm Kev Qhia Qib:
ASTM A572 Gr 50: Kev ua haujlwm sib npaug rau kev siv dav dav, nrog cov txiaj ntsig zoo sib xws (345 MPa).
Qauv TSIS MUAJ: DIN ST52-3: Direct match rau European tej yaam num.
JIS SM490A: Zoo rau cov neeg Esxias cov khoom, nrog rau kev sib piv weldability.
GB Q345B: Suav sib npaug rau siab -lub zog qis- alloy xav tau.
GNEE steel muab ob- daim ntawv pov thawj, suav nrog EN 10025-2 S275JR.
Puas yog S355J2 zoo dua S355J0?
Cov ntsiab lus: S355J0 yog tsim rau cov ntawv thov uas qhov kub tsis poob qis dua 0 degree, ua rau nws zoo tagnrho rau cov huab cua me me.S355J2 yog tsim los rau qhov chaw txias dua, nrog kev ua kom zoo dua ntawm qhov kub thiab txias li -20 degree.
Qhov txawv ntawm S355J2 thiab S355J0 yog dab tsi?
Qhov sib txawv tseem ceeb ntawm S355J2 thiab S355J0 steel qib nyob hauv lawvcuam tshuam kev ntsuas kub xav tau, uas txiav txim siab lawv qhov tsim nyog rau kev sib txawv ib puag ncig.
Ob qib yog cov txheej txheem steels raws li EN 10025-2 tus qauv nrog tib yam tsawg kawg nkaus yield zog ntawm 355 MPa, tab sis lawv muaj qhov sib txawv tshwj xeeb rau kev sib tw toughness:
Hauv cov ntsiab lus, S355J2 yog qhov hnyav dua ntawm qhov kub qis dua S355J0 vim tias nws tau teev tseg kom khaws nws cov kev cuam tshuam ntawm qhov kub thiab txias li -20 degree, thaum S355J0 tsuas yog lav kom ua li ntawd ntawm 0 degree.
Suav steel qib Q235 sib npaug li cas?
ASTM A36
Q235 steel yog tus qauv qib hauv Suav teb, nrog cov khoom sib npaug hauv lwm cov qauv thoob ntiaj teb xws liASTM A36 (Tebchaws Asmeskas) thiab S235JR (Tebchaws Europe).
S355J2+N
Normalized los yog normalized dov structural steel hnyav phaj. GNEE STEEL S355J2+N Zero yog kub dov cov qauv hlau rau kev tsim kho steel. N= Normalized.
Ua tiav cov kev cai ntawm EN 10025-2, GNEE STEEL S355J2+N Zero yog ntau yam qauv hlau rau cov khoom tsim thiab cov qauv steel. Formability thiab zoo ib yam zoo guarantee ceev ceev, uninterrupted ntau lawm, tsim kom muaj kev ruaj ntseg nyob rau hauv cov nqi ntawm cov khoom siv.
Dimension Range
GNEE S355J2+N Zero muaj nyob rau hauv thickness ntawm 6.00 - 60.00 hli.
Fabrication thiab lwm yam kev pom zoo
Vuam:
Weldability yog zoo heev nrog rau tag nrho cov txheej txheem vuam. Kev ua haujlwm kub nce ntxiv yog tsawg dua li cov qib sib luag ntawm cov qauv steels. Qhov no txhais tau tias kev vuam yooj yim dua thiab txuag nqi raws li kev cob qhia thiab qhov chaw vuam.
Xav tau kev ua haujlwm kub rau cov phaj tuab thov sab laj SSAB Tech Support.
Kev tsim:
SSAB S355J2+N Zero muaj cov khoom tsim tau zoo dua li cov qauv hlau. Kev ua tiav zoo yuav tsum tau ua kom cov chaw tsim khoom siv cov txheej txheem kev cob qhia zoo. Hnav cov cuab yeej, lubrication tsis zoo, khawb ntawm qhov chaw ntawm cov hlau thiab cov ntug burrs yuav tag nrho cov kev ua kom zoo.
Guaranteed yam tsawg kawg nkaus dabtsi yog khoov vojvoog rau tag nrho cov lus qhia yog 1.5 xt mus txog 30 hli tuab phaj qhov twg t=phaj thickness.
Kev kho cua sov:
Cov lus pom zoo rau kev txo kev ntxhov siab thiab normalizing
Kev ntxhov siab 550 - 600℃(lub hom phiaj 580 degree)
2 feeb / millimeter tuab, txawm li cas los xij, 30 feeb yam tsawg kawg nkaus. Maj mam txias hauv qhov cub.
Normalizing 900 - 940℃(lub hom phiaj 920 degree)
Qhov txawv ntawm S275JR thiab Q235 yog dab tsi?
S275JR feem ntau yog steel rods, steel daim hlau, steel strips, hlau rods, thiab forgings nrog zoo heev zog. Q235B muaj qee yam elongation, lub zog, zoo toughness thiab castability, thiab yooj yim rau punch thiab weld.
S355NL sib npaug li cas?
S355NL steel yog European txheem hlau alloy structural siab - lub zog steel, normalized dov weldable nplua -grained structural steel phaj, sib npaug rauSuav steel qib Q345E series.
Qhov sib npaug ntawm S355J2 hauv Suav teb yog dab tsi?
Q345D
EN10025 S355J2 qib sib npaug hauv Suav teb yogQ345D. Lawv cov tshuaj muaj pes tsawg leeg sib txawv me ntsis thiab cov khoom siv kho tshuab zoo sib xws. Hais txog cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab, S355J2 steel thiab EN10025 S355J2 sib npaug qib Q345D yuav luag siv tau los hloov ib leeg.
Lub zog ntawm S355J2 khoom yog dab tsi?
470 txog 630 MPa
S355J2 steel paub txog nws cov khoom siv kho tshuab, ua rau nws zoo tagnrho rau kev siv cov qauv. Nwstensile lub zog ntawm 470 txog 630 MPa, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa rau thicknesses hauv qab 16 hli.
Q235 sib npaug rau JIS yog dab tsi?
SIB 400
Q235 steel phaj sib npaug steel qauv -astm a36
| Hlau Standard | Qib Steel | Tshuaj muaj pes tsawg leeg |
|---|---|---|
| ASTM | A36 | 0.050 |
| GB | Q235A | 0.050 |
| Q235B | 0.045 | |
| JIS | SIB 400 | 0.050 |
1 feeb / millimeter tuab, txawm li cas los xij, 20 feeb yam tsawg kawg nkaus. Txias hauv huab cua dawb.
Puas yog S355J2 zoo dua S355J0?
Cov ntsiab lus: S355J0 yog tsim rau cov ntawv thov uas qhov kub tsis poob qis dua 0 degree, ua rau nws zoo tagnrho rau cov huab cua me me.S355J2 yog tsim los rau qhov chaw txias dua, nrog kev ua kom zoo dua ntawm qhov kub thiab txias li -20 degree.
