Cov khoom lag luam
Q355gnhYog lub siab - Kev Ua Haujlwm Wilding Steel, faib ua cov hlau tsis muaj zog- allloy}
Los ntawm alloying me me ntawm corrosion - iveantant ntsiab xws liTooj Liab (0.25-0.55%), npib tsib xee (tsawg dua los yog sib npaug rau 0.65%), thiabchromium (0.30-1.25%), nrog rau cov nqi ntawm phosphorus thiab titanium, cov hlau ua ibNtiv dej oxide olide tiv thaiv txheej kwv yees li 50-100 μm tuabNyob rau hauv lub ntuj atmospheric raug.
Cov txheej no zoo thaiv noo noo thiab oxygen, txhim kho nwsatmospheric corrosionance los ntawm 2-5 zaug piv nrog cov carbon steel.
Cov hlau tso tseg aYam tsawg kawg nkaus zog zog ntawm 355 mpa, a tensile lub zog ntawm 470-630 mpa, thiabelongation ntau dua los yog sib npaug rau 20%, ua ke lub zog siab, kev ua tau zoo, thiab zoo heev Veldability. Nws siab - kub kuj tso cai siv nyob rau hauvroj teeb lossis tso cov tshuab kaw mus txog li 400 degree, thiab hauv ntug hiav txwv lossis cov chaw muaj cua, nws tuaj yeem ua tiav aKev Pab Lub Neej ntawm 20-30 xyoos.
Q355gnh hlau daim hlau tau dav siv nyob rau hauvCov tsheb ciav hlau tsheb ciav hlau tsheb, cov choj, ntim, ntim, cov pa taws, tso tsheb hlau luam, thiab toj roob hauv pes cov qauv qauv, muab cov kev cia siab rau cov txheej txheem tab sis kuj tseem ceeb nkauj rov qab los ntawm lawv lub cev liab ploog - xim av patina.
GB / T 4171 Q310gnh Hlau Phaj Tseeb
Qeb: Q310Gnh
Txheem: GB / T 4171
Thickness: 1mm-100mm, Dav: 1000mm-4100mm, ntev: 1000mm-12000mm
Tshuaj lom neeg muaj pes tsawg leeg (muaj nuj nqis,%)
| Teem nqi | C | Si | Mn | P | S | CU | Cr | Ni |
|---|---|---|---|---|---|---|---|---|
| Q310gnh | 0.12 | 0.25–0.75 | 0.20–0.50 | 0.07–0.12 | 0.02 | 0.20–0.50 | 0.30–1.25 | 0.65 |
Cov Khoom Siv Neeg Kho Tshuab (Cov nqi raug)
| Teem nqi | Yield zog (mpa) | Tensile lub zog (mpa) | Elongation nyob rau hauv 2 hauv. (50 hli) min (%) |
|---|---|---|---|
| Q310gnh | 310 | 450 | 26 |
Q355gnh High Well Steel Daim Ntawv Thov
Cov huab cua tiv thaiv ntawmQ35Pnegh High Rauv Hluav Taws Xob Hlauyog 2 ~ 8 zaug uas ntawm cov khoom siv roj carbon hlau zoo tib yam yog 1.5 ~ 10 zaug uas muaj cov roj carbon tib yam.
Nyob rau tib lub sijhawm, nws muaj cov yam ntxwv ntawm xeb ua kom tsis kam, corrosion tsis kam thiab ntev ntawm cov khoom siv, thinning thiab kev txuag, txuag txuag thiab txuag hluav taws xob thiab txuag hluav taws xob.
Huab cua hlau feem ntau yog siv nyob rau hauv railways, tsheb, cov choj, cov qauv yees thiab lwm cov qauv hlau raug rau lub sijhawm ntev.
Q35Pnight High Weather Hlau yog siv los tsim cov qauv txheem, roj ntxiv cov chaw ntim khoom, cov roj av muaj cov khoom siv thiab cov roj av roj av.
