S350GD hlauyog lub siab -lub zog kub-dip galvanized structural steel qib raws li European EN 10346 tus qauv, nrog cov khoom siv tooj 1.0529. Nws cov ntsiab lus txhais tshwj xeeb yog qhov tsawg kawg nkaus lub zog ntawm 350 MPa, ua ke nrog kev tiv thaiv zinc txheej rau ntev - lub sij hawm corrosion kuj. Raws li ntau yam tsawg- alloy structural steel, S350GD steel integrates zoo heev mechanical kev ua tau zoo, formability, thiab weldability, ua rau nws lug siv nyob rau hauv kev tsim kho, automotive, thiab tauj dua tshiab zog tej yaam num. Nws muaj cov qhab nia sib npaug sib npaug thoob ntiaj teb cov qauv, ua rau muaj kev hloov pauv seamless rau hla-txheej txheem engineering thiab kev yuav khoom.
S350GD steel tsis yog cov pa roj carbon ntau tab sis tshwj xeeb kub-dip galvanized structural qib, qhov "S" sawv cev rau cov qauv hlau, "350" qhia txog qhov tsawg kawg nkaus lub zog ntawm 350 MPa, thiab "GD" qhia tias nws kub -dip galvanized daim ntawv thov thiab kev tsim kho. Tsis zoo li uncoated siab -lub zog steels, S350GD's zinc txheej muab kev tiv thaiv corrosion, tshem tawm qhov xav tau rau kev tshaj tawm ntxiv- ua haujlwm hauv ntau qhov xwm txheej.
1. Core Properties ntawm S350GD Steel
S350GD steel cov khoom yog ua kom zoo rau cov qauv thauj khoom-cov kabmob thiab corrosion kuj, ntsuas lub zog, kev ua haujlwm, thiab ua haujlwm ntev. Txhua yam khoom ua tau raws li EN 10346 tus qauv, nrog kev hloov me ntsis raws li txheej txheej thiab thickness. Cov khoom tseem ceeb muaj xws li cov khoom siv kho tshuab, tshuaj lom neeg muaj pes tsawg leeg, txheej txheem txheej, thiab kev ua haujlwm ntawm kev tsim khoom.
1.1 Mechanical Properties (EN 10346)
Lub tshuab ua haujlwm ntawm S350GD steel yog txhais los ntawm nws cov txiaj ntsig siab thiab kev ua haujlwm zoo, ua kom muaj kev ntseeg siab hauv cov qauv siv. Cov hauv qab no yog tus qauv yam tsawg kawg nkaus qhov tseem ceeb (nws txawv me ntsis nrog cov khoom thickness):
|
Mechanical Indicator |
Yam tsawg kawg nkaus |
Sau ntawv |
|---|---|---|
|
Yield zog (Rp0.2/ReH) |
350 MPa |
Siv rau thickness Tsawg dua los yog sib npaug li 3.0mm; txo me ntsis nrog cov ntawv tuab |
|
Tensile zog (Rm) |
420 MPa rau |
Feem ntau: 420-550 MPa, nrog rau 140 MPa ncua rau feem ntau specifications |
|
Elongation ntawm Fracture (A80) |
16% |
Txo nrog cov ntawv nyias: -2 units rau 0.5-0.7mm, -4 units rau 0.35-0.5mm, -7 units rau<0.35mm |
|
Qhov ntom |
7.85 g / cm³ |
Raws li tus qauv qauv steels, rau engineering hnyav xam |
|
Txias Khoov Performance |
d=0a (tsis muaj kab nrib pleb) |
180℃txias khoov kuaj, haum rau txoj kev sib sau ua ke |
1.2 Chemical Composition (Kev Ntsuas Kub, Tsawg dua lossis sib npaug li %)
S350GD steel yog qis- alloy steel nrog kev tswj nruj ntawm impurity ntsiab kom ntseeg tau tias weldability thiab toughness. Tus qauv tshuaj muaj pes tsawg leeg (ib EN 10346) yog raws li hauv qab no:
|
Lub ntsiab |
Cov ntsiab lus siab kawg |
Ntsiab Function |
|---|---|---|
|
Cov pa roj carbon (C) |
0.20% |
Tswj kom tswj tau zoo weldability thiab formability |
|
Silicon (Si) |
0.60% |
Pab deoxidation thaum steelmaking, txhim kho qhov zoo |
|
Manganese (Mn) |
1.70% |
Txhim kho lub zog thiab toughness tsis txo cov ductility |
|
Phosphorus (P) |
0.10% |
Tsawg kom tsis txhob nkig tawg, tshwj xeeb tshaj yog nyob rau hauv qis kub |
|
Sulfur (S) |
0.045% |
Tswj los txhim kho ductility thiab weldability |
|
Microalloys (Nb / V / Ti) |
0.15% |
Refines grain qauv, ntsuas lub zog thiab formability |
S350GD steel muaj cov pa sib npaug (CEV) Tsawg dua lossis sib npaug li 0.48%, kom ntseeg tau zoo weldability. Tsis muaj preheating yuav tsum tau thickness tsawg dua los yog sib npaug rau 35mm ntawm ambient kub Ntau tshaj los yog sib npaug rau 0 degree, simplifying fabrication txheej txheem xws li arc vuam thiab chaw vuam.
1.3 Txheej Txheem
Raws li kub-dip galvanized steel, zinc txheej yog ib qho tseem ceeb ntawm S350GD steel, muab kev tiv thaiv corrosion ntev ntev. Nws muaj rau txheej txheej sib txawv los hloov mus rau qhov sib txawv ib puag ncig:
+Z: Kub-dip zinc txheej, tus qauv sib txawv nrog corrosion kuj zoo rau ib puag ncig
+ ZF: Kub-dip zinc txheej nrog zoo spangle nto, haum rau kev pleev xim tom ntej
+ZA: Zinc- aluminium alloy txheej, txhim khu kev tiv thaiv corrosion rau ib puag ncig hnyav
+ ZM: Zinc-magnesium alloy txheej, kev tiv thaiv zoo tshaj tiv thaiv ntsev tsuag thiab cov pa phem hauv nroog
+ AZ: Aluminium-zinc alloy txheej (55% Al + 43.4% Zn + 1.6% Si), zoo tagnrho rau ntug hiav txwv dej thiab chaw lag luam
+AS: Aluminium-silicon alloy txheej, haum rau siab -kev siv kub
Cov txheej txheem ntau yam ntawm Z140 txog Z275 (g / m² tag nrho), nrog Z275 muab qhov siab tshaj plaws corrosion kuj, ncua kev pab cuam lub neej ntawm S350GD steel nyob rau sab nraum zoov thiab corrosive ib puag ncig los ntawm 2-3 zaug piv rau uncoated steel.
1.4 Fabrication Properties
Weldability: Zoo heev, nrog qis carbon sib npaug thiab cov qauv microstructure, haum rau qhov chaw vuam, CO₂ gas shielded vuam, thiab arc vuam yam tsis muaj kev hloov kho tshwj xeeb.
Formability: Zoo dimensional stability thiab ductility, tso cai rau txiav, dabtsi yog khoov, stamping, thiab yob txoj kev, haum rau complex structural Cheebtsam.
Machineability: Yooj yim rau txheej txheem nrog cov cuab yeej txheem, kom ntseeg tau siab precision hauv kev txiav thiab drilling.
Ntiaj teb sib npaug qib ntawm S350GD Steel
S350GD steel tau zoo-tsim cov qhab nia sib npaug thoob plaws hauv cheeb tsam cov qauv tseem ceeb, ua kom muaj kev hloov pauv seamless rau hla- tej yaam num ciam teb, kev yuav khoom thoob ntiaj teb, thiab ua raws li qhov project. Cov khoom sib npaug muaj cov txiaj ntsig zoo sib xws, kev tiv thaiv corrosion, thiab kev ua haujlwm ntawm cov khoom siv, nrog kev hloov me ntsis hauv cov qauv txheej txheem thiab kev txwv tsis pub dhau.
|
Thaj tsam |
Qib sib npaug |
Txuj |
Qhov Ntsuas Qhov Ntsuas Qhov Ntsuas |
Txheej Compatibility |
|---|---|---|---|---|
|
Teb chaws Europe (Reference) |
S350GD+Z/ZF/ZA |
TS EN 10346 |
Yield zog Ntau tshaj los yog sib npaug rau 350 MPa, tensile zog Ntau tshaj los yog sib npaug rau 420 MPa |
Z140-Z275, AZ series |
|
Tebchaws Meskas |
ASTM A653 Qib 80 (G90) |
ASTM A653 Cov khoom lag luam |
Yield zog Ntau tshaj los yog sib npaug rau 350 MPa, tensile zog Ntau tshaj los yog sib npaug rau 448 MPa |
G60-G90 (60-90 g / m² tag nrho) |
|
Tuam Tshoj |
Q355GNHd / S350GD (Baosteel Q/BQB 425) |
GB/T 2518/Q/BQB 425 |
Yield zog Ntau tshaj los yog sib npaug rau 345-350 MPa, haumxeeb match rau feem ntau daim ntaub ntawv |
Z140-Z275, AZ series |
|
Nyiv |
SGHC 440 / SGLC490 |
JIS G3302 / JIS G3321 |
Yield zog Ntau dua los yog sib npaug rau 340-350 MPa, sib haum rau kev siv cov qauv |
Z120–Z275 |
|
Kaus lim qab teb |
SS 490 Gal |
KS D3506 |
Yield zog Ntau dua los yog sib npaug rau 340 MPa, phim S350GD lub peev xwm thauj khoom |
Z140–Z275 |
|
Australia/New Zealand |
G350 |
AS/NZS 3678 |
Yield zog Ntau dua los yog sib npaug rau 350 MPa, siab - lub zog muaj zog qib |
Zinc{0}} aluminium alloy txheej |
3. Hom kev siv ntawm S350GD Steel
S350GD steel kev sib xyaw ua ke ntawm lub zog siab, kev tiv thaiv corrosion, thiab kev tsim ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv cov txheej txheem thoob plaws kev lag luam, tshwj xeeb tshaj yog cov uas raug rau ib puag ncig hnyav. Cov ntawv thov uas muaj xws li:
Kev tsim kho: Load-cov kabmob thav duab, kab, thiab kab teeb rau kev lag luam thiab cov txuas hniav; trapezoidal thiab sawv seam ru tsev / facade profiles; txias-tsim seem (purlins, channels); sandwich thiab composite phab ntsa / qab nthab panels rau logistics chaw.
Lub zog tauj dua tshiab: Substructures rau photovoltaic (hnub ci) mounting systems, leveraging qis txij nkawm thiab siab load-cov kabmob muaj peev xwm.
Automotive: Chassis Cheebtsam, lub cev vaj huam sib luag, thiab cov khoom siv, tau txais txiaj ntsig los ntawm nws lub zog thiab corrosion kuj.
Dej & Infrastructure: Gutters, downpipes, thiab rainwater chims, ruaj nyob rau hauv qab ntsev los yog hauv nroog ib puag ncig; kev ruaj ntseg teeb meem thiab suab rwb thaiv tsev phab ntsa panels rau txoj kev thiab railways.
Machinery & Khoom siv: Ncej rau cov tshuab mining, crane Cheebtsam, thiab hnyav- cov khoom siv ua haujlwm, tso siab rau nws lub zog - rau - qhov hnyav piv.
Ua liaj ua teb: Tsev cog khoom vaj tse, resistant rau sab nraum zoov huab cua.
Photovoltaic Bracket Hnub Ci Mounting System:Lub tshuab hluav taws xob photovoltaic yog "skeleton" ntawm lub chaw nres tsheb fais fab photovoltaic, xa mus rau cov qauv hlau siv los nruab, txhawb nqa, thiab kho cov hnub ci photovoltaic modules.
Cov lus nug nquag nug (FAQ)
1. S350GD steel yog dab tsi?
S350GD steel yog siab -lub zog kub-dip galvanized structural steel raws li EN 10346 (cov ntaub ntawv naj npawb 1.0529). Nws muaj qhov tsawg kawg nkaus lub zog ntawm 350 MPa, tiv thaiv zinc txheej rau corrosion kuj, thiab yog tsim los rau cov qauv siv uas yuav tsum tau muaj zog thiab durability.
2. Cov ntawv "S", "350", thiab "GD" sawv cev rau dab tsi hauv S350GD?
"S"=Cov qauv steel (qhia nws siv rau kev thauj khoom-cov ntaub ntawv siv kabmob); "350"=Yam tsawg kawg nkaus tawm lub zog ntawm 350 MPa; "GD"=Galvanized dual-theem los yog galvanized structural qib, xa mus rau nws kub-dip galvanized ua.
3. Dab tsi yog cov khoom tseem ceeb ntawm S350GD steel?
S350GD steel muaj qhov tsawg kawg nkaus lub zog ntawm 350 MPa, lub zog tensile yam tsawg kawg nkaus ntawm 420 MPa, elongation ntawm ntau dua lossis sib npaug li 16%, thiab qhov ceev ntawm 7.85 g / cm³. Nws kuj muaj zoo heev formability thiab weldability.
4. Qhov sib npaug ntawm S350GD steel hauv Teb Chaws Asmeskas yog dab tsi?
US sib npaug ntawm S350GD steel yog ASTM A653 Qib 80 (G90), uas muaj qhov tsawg kawg nkaus tawm lub zog ntawm 350 MPa thiab G90 zinc txheej, sib piv S350GD qhov kev ua tau zoo rau kev siv cov qauv.
5. Q355 steel puas tuaj yeem hloov S350GD steel ncaj qha?
Suav Q355GNHd (tus galvanized variant ntawm Q355) yog qhov ua haujlwm sib npaug rau feem ntau cov ntawv thov, txawm tias nws lub zog tawm los (345 MPa) qis dua me ntsis. Uncoated Q355 tsis tuaj yeem hloov S350GD, vim nws tsis muaj zinc txheej tiv thaiv.
6. Cov kev xaiv txheej twg muaj rau S350GD steel?
S350GD muaj 6 txheej txheej: +Z (txheej txheem zinc), + ZF (zoo spangle zinc), + ZA (zinc-aluminium), + ZM (zinc-}}) magnesium), + AZ (txhuas -zinc), thiab + AS (txhuas-silicon), yoog rau ib puag ncig sib txawv.
7. Puas yog S350GD steel haum rau siv sab nraum zoov?
Yog lawm. Nws kub-dip zinc txheej muab ntev- lub sij hawm corrosion kuj, ua rau nws zoo tagnrho rau sab nraum zoov daim ntaub ntawv xws li ru tsev profiles, choj Cheebtsam, thiab hnub ci mounting systems, txawm nyob rau hauv lub ntug dej hiav txwv los yog industrial cheeb tsam.
8. Cov ntaub ntawv ntawm S350GD steel muaj dab tsi?
S350GD steel feem ntau muaj xws li coils, slit coils, thiab txiav - mus rau - ntev nplooj ntawv, nrog thicknesses li ntawm 0.40–4.00 mm thiab dav txog 1620 mm, txhawb customization rau ntau yam project xav tau.