Q235B galvanized steel yeeb nkab yog cov pa roj carbon steel yeeb nkab ua los ntawm Q235B qib sawb hlau, txhim kho nrog kev tiv thaiv zinc txheej los txhim kho corrosion.
Nws yog dav siv hauv kev tsim kho, kav dej, kev thauj mus los ua kua, thiab kev siv cov txheej txheem. Galvanized yeeb nkab tuaj yeem ua tau raws li kub-dip galvanized lossis electro-galvanized, muab kev xaiv rau cov peev txheej sib txawv thiab cov kev xav tau ntev.
Kub-dip Galvanized (HDG): tuab thiab zoo li zinc txheej, muaj zog adhesion, kev pab lub neej ntev, superior corrosion kuj.
Electro-galvanized (EG): Tus nqi qis dua, lub ntsej muag du yog qhov tsis sib xws, thiab kev tiv thaiv corrosion qis dua HDG.
Specifications
Q235B galvanized steel kav muaj nyob rau hauv ntau yam nominal diameters (DN) thiab phab ntsa thicknesses kom haum rau ntau yam kev siv:
| Nominal Diameter (DN) | Phab ntsa Thickness (mm) | Nominal Diameter (DN) | Phab ntsa Thickness (mm) |
|---|---|---|---|
| DN15 | 1.8 – 2.75 | DN 80 | 2.2 – 3.25 |
| DN 20 | 1.8 – 2.5 | DN100 | 2 – 4 |
| DN 25 | 1.8 – 3.25 | DN125 | 2.5 – 4 |
| DN 32 | 1.8 – 3.5 | DN150 | 2.5 – 4.5 |
| DN40 | 1.8 – 3.5 | DN200 | 2.75 – 6 |
| DN 50 | 1.8 – 3.25 | DN200 | 5 – 6 |
Phab ntsa thickness thiab txoj kab uas hla tuaj yeem kho kom tau raws li qhov project- cov kev cai tshwj xeeb.
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ua kom Q235B steel kav muaj qhov zoo weldability, txhua yam muaj zog, thiab corrosion kuj:
| Qib | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| Q235 | – | – | – | – | – | – | – | – | – |
| 304L | 0–0.03 | 0–2 | 0–1 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.03 | 18–20 | – | 9–11 | – |
| 304H | 0.04–0.1 | – | – | 0.045 | – | 18–20 | – | 8–10.5 | – |
Lus Cim: 304 / 304L / 304H yog stainless hlau siv rau kev sib piv, qhia cov khoom tensile thiab hardness.
Mechanical Properties
| Qib | Tensile zog (MPa) | Tawm Zog (0.2%, MPa) | Elongation (% hauv 50mm) | Hardness (HR B / HB) |
|---|---|---|---|---|
| 304 | 515 | 205 | 40 | 92 / 201 |
| 304L | 515 | 205 | 40 | 90 / 187 |
| 304H | 515 | 205 | 40 | 92 / 201 |
Cov txiaj ntsig tseem ceeb:
Zoo ductility thiab plasticity
Weldability zoo heev
Nruab nrab corrosion kuj (txhim kho nrog galvanization)
Kev Siv Tshuab
Q235B galvanized steel kav yog tsim los siv siab - zoo sawb hlau thiab kev ua haujlwm siab heev:
Galvanization:
Kub-dip galvanized (HDG): tuab zinc txheej, zoo adhesion, ntev lifespan.
Electro-galvanized (EG): Tus nqi- siv tau, txheej nyias nyias, tiv thaiv corrosion tsis zoo.
Tube Fabrication:
Me - txoj kab uas hla welded steel kav (oxygen tshuab tshuab)
Khoom siv: Q235B steel strips (kuj 08, 10, 15, 20 steel)
Kev xaiv aluminizing kev kho mob los txhim kho kev tiv thaiv corrosion
Daim ntawv thov
Q235B galvanized steel kav yog siv dav hauv kev lag luam:
Kev thauj dej thiab roj: Cov kav dej, cov kav dej, thiab cov kav dej ua haujlwm.
Kev tsim kho: Cov qauv tsim, scaffolding, txhawb nqa kab.
Mechanical and Manufacturing: Shafts, rods, hooks, couplers, thiab mechanical tubing.
General Engineering: Tsawg- cov thawv ntim siab thiab tsis yog- cov qauv siv tshuab tseem ceeb.
Q235B galvanized steel yeeb nkab yog ntau yam, tus nqi - siv tau zoo rau kev lag luam, kev lag luam, thiab kev siv pej xeem. Los ntawm kev xaiv txoj kev galvanization kom zoo (kub-dip lossis electro-}galvanized), tus tsim thiab engineers tuaj yeem sib npaug nyiaj txiag, durability, thiab corrosion kuj raws li qhov yuav tsum tau ua.
