S280GD Galvanized hlau
S280GD galvanized steel nplooj ntawv thiab daim hlau tsis tshua muaj - carbon hlau uas coated nrog zinc los ntawm kub-dip galvanizing txheej txheem los tiv thaiv nws ntawm corrosion. Cov hlau feem ntau yog ua los ntawm hlau, nrog me me ntawm carbon, manganese, thiab silicon los txhim kho nws lub zog thiab formability. Nws muaj lub zog tawm los ntawm 280 MPa, uas ua rau nws haum rau nruab nrab load-cov ntaub ntawv kabmob, raws li EN 10346 tus qauv.
Lub zinc txheej pab tiv thaiv xeb, ua rau S280GD yog ib qho kev xaiv zoo rau ib puag ncig nrog cov dej noo, ntsev, lossis lwm yam corrosive. Nws yog feem ntau siv rau hauv kev tsim kho rau lub ru tsev thiab phab ntsa panels, hauv kev lag luam tsheb rau lub cev panels thiab undercarriages, thiab hauv cov khoom siv xws li tub yees thiab tshuab ntxhua khaub ncaws. Ua tsaug rau nws qhov sib npaug ntawm lub zog thiab kev tiv thaiv corrosion, S280GD ua haujlwm zoo hauv ntau yam kev lag luam.
Mechanical Properties
| Parameter | Txuj kev xav tau | Tus nqi |
| Yield zog (Rp0.2) | Ntau dua lossis sib npaug li 280 MPa | 300-330 MPa |
| Tensile zog (Rm) | 380-500 MPa | 400-460 MPa |
| Elongation (A80 hli) | Ntau dua lossis sib npaug li 12% | 15-18% |
| Kho tau | 180℃d=0a | Tsis tawg |
Ntiaj teb no Standard Grade Sib piv
| Khoom | Teb chaws Europe EN 10346 | Tuam Tshoj GB/T 2518 | ASTM A653 USA | Nyiv JIS G3302 |
| Qib | S280GD + Z | S280GD + Z | SS Qib 40 | TIAB SA 440 |
| Yield zog | Ntau dua lossis sib npaug li 280 MPa | Ntau dua lossis sib npaug li 280 MPa | Ntau dua lossis sib npaug li 275 MPa | Ntau dua lossis sib npaug li 440 MPa |
qhov zoo
Siab zog:280 MPa yield zog yog nyob rau hauv nruab nrab mus rau siab zog chav kawm ntawv ntawm structural galvanized steel los pab txhawb cov txheej txheem tseem ceeb.
Lub teeb:Kev siv cov khoom siv txo qis txo qhov hnyav ntawm lub tsev lossis cov khoom lag luam thaum ntsib cov khoom thauj - nqa cov kev xav tau.
Advanced Corrosion Protection:Txheej thicknesses tuaj yeem xaiv nyob ntawm daim ntawv thov kom tiv taus ib puag ncig kev lag luam hnyav.
Optimized formability:Tuav lub peev xwm khoov / stamp complex tsim thiab tuaj yeem siv los ua cov khoom siv raw rau ntau hom duab.
Aesthetically pleasing thiab uniform:Smooth nto nrog zinc spangle thiab txhawb rau chromic acid passivation, oiling thiab ntiv tes tsis kam.
S280GD Galvanized Steel Chemical Composition
| Element | Cov ntsiab lus (qhov hnyav%) |
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.20 |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.70 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.10 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.045 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.60 |
S280GD Galvanized Steel Mecahmical Properties
| Khoom | Tus nqi | |
| Tensile zog (Rm) | 360 MPa siab | |
| 0.2% Pov thawj muaj zog (Rp0.2) | 280 MPa | |
| Min. Elongation (A, Lo=80 hli) | – | 18% |
0.5mm | 16% |
| |
0.35mm | 14% |
| |
| t Tsawg dua lossis sib npaug li 0.35mm | 11% | |
| Bending Center Txoj kab uas hla (mm) | 1a | |
| S280GD tensile lub zog tuaj yeem ncav cuag 140 MPa, nyob ntawm seb cov khoom siv tshwj xeeb thiab kev ua haujlwm. | ||
Muaj Steel Qib
| Qib steel | Txheej | Tawm tswv yim (MPA) | Tensile (MPA) | Elongation (%) |
| xwm 51d | Z, ZF | -- | 270-500 | 20 |
| xwm 52d | Z, ZF | 140-300 | 270-420 | 22 |
| xwm 53d | Z, ZF | 140-260 | 270-380 | 26 |
| xwm 54d | Z, ZF | 140-220 | 270-350 | 30 |
| S220 GD | Z, ZF | 220 | 300 | 18 |
| S250 GD | Z, ZF | 250 | 330 | 17 |
| S280 GD | Z, ZF | 280 | 360 | 16 |
| S320 GD | Z, ZF | 320 | 390 | 15 |
| S350 GD | Z, ZF | 350 | 420 | 14 |
| S400 GD | Z, ZF | 400 | 470 | -- |
| S450 GD | Z, ZF | 450 | 530 | -- |
| S500 GD | Z, ZF | 500 | 560 | -- |