Q390B yog lub siab -lub zog qis- alloy (HSLA) cov qauv hlau uas tau siv dav hauv cov kav dej engineering. Nws yog tsim los muab cov cuab yeej kho kom zoo dua qub thiab ua haujlwm zoo dua rau atmospheric corrosion piv rau cov pa roj carbon steels. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev thov cov ntawv thov uas muaj zog thiab kav ntev yog qhov tseem ceeb.
Ntsiab nta
Lub zog muaj zog: Q390B muaj lub zog tensile thiab tawm los zoo heev, ua rau nws haum rau hnyav - daim ntawv thov.
Corrosion Resistance: Txhim khu kev tiv thaiv atmospheric corrosion, txo tus nqi tu thiab ncua kev pab cuam lub neej.
Weldability: Zoo weldability tso cai rau kev yooj yim ntawm fabrication thiab installation.
Toughness: Ua kom tawv tawv ntawm qhov kub thiab txias, ua kom muaj kev ntseeg siab hauv ntau yam ib puag ncig.
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm Q390B alloy steel yog qhov tseem ceeb rau nws cov yam ntxwv ua haujlwm. Hauv qab no yog ib lub rooj nthuav qhia cov tshuaj muaj pes tsawg leeg:
| Element | Kev sib xyaw (%) |
|---|---|
| Cov pa roj carbon (C) | 0.18 max |
| Silicon (Si) | 0.55 max |
| Manganese (Mn) | 1.20 - 1.60 |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 0.30 max |
| Nickel (Ni) | 0.50 max |
| Copper (Cu) | 0.40 max |
| Vanadium (V) | 0.10 max |
| Niobium (Nb) | 0.06 max |
Mechanical Properties
Cov khoom siv kho tshuab ntawm Q390B steel yog qhov tseem ceeb rau kev txiav txim siab nws qhov tsim nyog rau cov ntawv thov tshwj xeeb. Cov lus hauv qab no qhia txog cov khoom no:
| Khoom | Tus nqi |
|---|---|
| Tensile zog (MPa) | 490 - 650 |
| Yield zog (MPa) | Ntau dua lossis sib npaug rau 390 |
| Elongation (%) | Ntau tshaj los yog sib npaug rau 20 |
| Impact Zog (J) | Ntau dua lossis sib npaug li 34 (ntawm -20 degree) |
GNEE Steel muab siab -lub zog qis- alloy Q355B steel phaj nyob rau hauv ntau yam specifications, nrog rau cov qauv loj thiab customized qhov ntev, kom tau raws li qhov xav tau ntawm txawv structural engineering, machinery manufacturing, tsim, thiab industrial tej yaam num. Ntxiv nrog rau peb cov khoom siv tag nrho - steel phaj, peb kuj muab cov kev pabcuam customized ua haujlwm xws li txiav, vuam, dabtsi yog khoov, drilling, thiab kho qhov chaw, kom ntseeg tau tias peb cov khoom thiab cov kev pabcuam ua tau raws li koj qhov kev xav tau ntau yam.
Yog tias koj muaj qee qhov yuav tsum tau ua rau Q355B steel daim hlau - txawm tias koj xav tau kev tsim khoom tshiab, muaj cov npe ntawm cov khoom lag luam, cov lus qhia ntxaws ntxaws, lossis kev txhawb nqa txuj ci - thov koj xav tiv tauj peb los ntawm email. Peb pab neeg tshaj lij yuav teb koj sai sai thiab muab cov kev daws teeb meem txhim khu kev qha thiab cov nqi sib tw.
Cim npe nrov: Q390B Steel Phaj rau Machinery & Engineering, Tuam Tshoj Q390B Steel Phaj rau Machinery & Engineering manufacturers, lwm tus neeg, Hoobkas
