S320GD Galvanized hlau
S320GD steel chemical muaj pes tsawg leeg yog tailor- ua rau siab durability thiab corrosion kuj, thiab yog li zoo rau cov qauv siv. Nws feem ntau muaj cov pa roj carbon tsawg, manganese, phosphorus, thiab sulfur qib kom sib npaug ntawm lub zog thiab kev ua haujlwm. S320GD tau txhim kho cov khoom siv galvanization los ntawm zinc txheej, muab kev tiv thaiv ntau dua tiv thaiv ib puag ncig hnav thiab corrosion thaum piv nrog rau lwm qib steel xws li S235 lossis S355. Qhov tshwj xeeb thaj ntawm qhov zoo no muab nws ib txheej ntawm cov yam ntxwv uas ua rau nws muaj kev xaiv zoo hauv kev tsim kho thiab hauv kev tsim khoom.
Lub luag haujlwm ntawm Chromium thiab lwm yam Alloys
Chromium yog ib feem tseem ceeb rau siab -kev tsim khoom uas qiv cov hlau thiab lwm yam alloys lawv cov khoom. Thaum chromium ntxiv rau hlau, tag nrho corrosion kuj yog txhim khu kev qha los ntawm depositing ib tug nyias zaj duab xis ntawm chromium oxide rau ntawm cov khoom nto. Cov chromium -nplua nuj alloys-stainless steel yog ib yam, nrog tsawg kawg yog 10.5% chromium- yog li zoo tagnrho rau cov ntawv thov uas yuav tsum tau tiv thaiv cov dej noo, tshuaj, thiab kub.
Sib nrug los ntawm kev tiv thaiv corrosion, chromium tseem koom nrog hauv cov cuab yeej siv thiab tshuab hardening thiab hnav tsis kam mechanisms. Cov ntaub ntawv tshawb fawb tam sim no qhia tau hais tias cov hlau nrog cov ntsiab lus chromium ntawm 12% -18% ua rau kom muaj zog, ua rau nws tuaj yeem tiv taus huab cua hnyav tshaj plaws.
Lwm cov ntsiab lus alloying, xws li npib tsib xee, molybdenum, thiab vanadium, tuaj yeem ua ke nrog chromium los kho cov khoom hauv kev tshwj xeeb. Piv txwv li, npib tsib xee nce toughness thiab ductility, thiab molybdenum tsub kom tsis kam rau pitting thiab crevice corrosion, tshwj xeeb tshaj yog nyob rau hauv marine ib puag ncig. Cov alloys no yog siv los tsim cov khoom siv rau kev lag luam tseem ceeb xws li aerospace, tsheb, kev tsim kho, thiab cov cuab yeej kho mob uas xav tau lub zog thiab lub sijhawm.
Sib piv cov ntsiab lus carbon hauv ntau hom hlau
| Hom hlau | Cov ntsiab lus carbon ntau (%) | Cov yam ntxwv tseem ceeb | Cov ntawv thov siv |
|---|---|---|---|
| Tsawg Carbon Steel | 0.04 – 0.30 | Ductile, yooj yim rau weld, tsis muaj zog | Cov cuab yeej txiav, springs, thiab masonry rau tes |
| Nruab nrab Carbon Steel | 0.31 – 0.60 | Muaj zog dua, nyuaj dua, tsawg dua ductile | Automotive qhov chaw, iav, qag |
| High Carbon Steel | 0.61 – 1.50 | Nyuaj heev, nkig, hnav -resistant | Cov cuab yeej txiav, springs, masonry rau tes |
| Ultra{0}}High Carbon Steel | 0.96 – 2.10 | Muaj zog heev, nkig | Riam, tsheb springs, txiav cov cuab yeej |
S320GD Galvanized Steel Daim ntaub ntawv
GNEE STEEL muab S320GD steel nyob rau hauv coils thiab strips, kom ntseeg tau tias zoo zoo haum rau ntau yam kev lag luam xav tau. Nws ua ke ntawm durability, lub zog, thiab tus nqi efficiency.
- Kev tsim kho thiab Infrastructure: Cov vaj huam sib luag vov tsev, phab ntsa cladding, structural moj khaum, txuas hniav, guardrails, thiab txhawb nqa beams.
- Automotive Kev Lag Luam: Lub cev vaj huam sib luag, chassis Cheebtsam, kev txhawb zog, kev sib tsoo-cov qauv tiv thaiv.
- Manufacturing thiab Engineering: Hlau enclosures, HVAC ducts, hluav taws xob txee, cia kaw, thiab machinery qhov chaw.
- Cov khoom siv ua liaj ua teb: Silos, laj kab, tshuab ua liaj ua teb, chaw cia khoom sab nraum zoov.
- Lub zog thiab kev siv hluav taws xob: Lub zog xa hluav taws xob ntauwd, lub hnub ci vaj huam sib luag txhawb nqa, cov khoom siv cua turbine, cov kav dej hauv tsev, thiab cov dej tso dej.
S320GD Galvanized Steel Mecahmical Properties
| Khoom | Tus nqi |
| Tensile zog (Rm) | 290 - 390 MPa |
| 0.2% Pov Thawj Zog (Rp0.2) | Ntau dua lossis sib npaug li 320 MPa |
| Tsawg kawg Elongation (Lo=80 mm) (A) | Ntau dua lossis sib npaug li 17% |
Nco tseg:
Qhov tsawg kawg nkaus elongation yuav tsum tau sib txawv nrog thickness:
0.5 hli
0.35 hli
t Tsawg dua lossis sib npaug li 0.35 mm: Qhov tsawg kawg nkaus elongation yog txo los ntawm7%piv rau tus nqi teev tseg.
Lub zog tensile ntau rau qib no tuaj yeem sib txawv mus txog140 MPa, nyob ntawm kev ua haujlwm thiab txheej txheej specifications.
- Muaj Steel Qib
| Qib hlau | 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 | -- |
