SPA-H weathering steel hollow seem, Corden Steel phaj
1. Cov lus piav qhia yooj yim:
SPA-Hhuab cua steel, kuj hu ua atmospheric corrosion-resistant steel, hais txog ib hom qis-hlau alloyhigh-zog steel
muaj ib tug me me ntawm alloying ntsiab, uas tsis muaj nqi, thiab zoo corrosion kuj nyob rau hauv cov huab cua. Lub ntsiab alloying
Cov ntsiab lus yog Cu, P, Cr, Ni, Si, Mn, V, RE, thiab lwm yam. Thaum siv cov huab cua steel, ib qho tuab thiab ruaj khov nrog cov yeeb yaj kiab tiv thaiv ntawm
Cov khoom siv corrosion yuav maj mam tsim rau ntawm qhov chaw los tiv thaiv cov pa oxygen, dej thiab lwm yam corrosive media hauv cov huab cua los ntawm
ntxiv corroding lub substrate, yog li ntawd tus nqi corrosion yog heev txo piv rau carbon steel. . Vim nws lub zog siab thiab
tus nqi tsim nyog, tus nqi ntau lawm yog qis dua stainless hlau. SPA-H tus qauv ua haujlwm yog: JISG3125-2015.
2. Tshuaj muaj pes tsawg leeg:
| Qib | Chemical Composition (%) | |||||||
| C | Si | Mn | P | S | Cu | Cr | Ni | |
| SPA-H | ≤ 0.12 | 0.2-0.75 Nws | ≤0.60 | 0.07-0.15 dr hab | ≤ 0.035 | 0.25-0.55 Nws | 0.30-1.25 dr hab | ≤ 0.65 |
| qw 235n | ≤ 0.13 | 0.1-0.4 hli | 0.2-0.6 hli | ≤ 0.030 | ≤ 0.030 | 0.25-0.55 Nws | 0.4-0.8 hli | ≤ 0.65 |
| qw 355n | ≤0.16 | 0.5 | 0.5-1.5 hli | ≤ 0.030 | ≤ 0.030 | 0.25-0.55 Nws | 0.4-0.8 hli | ≤ 0.65 |
| Q450 NQR 1 | ≤ 0.12 | 0.4 | 0.7-1.5 hli | ≤ 0.02 | ≤ 0.08 | 0.25-0.45 Nws | 0.4-0.9 hli | 0.05-0.4 hli |
3. Mechanical Properties
| Qib | Mechanical Property | ||
| Yield zog (N / mm2) / (Mpa) | Tensile zog (N / mm2) / (Mpa) | Elongtation (%) | |
| SPA-H | 355 | 490 | ≥ 22 |
| qw 235n | ≥235 | 360-510 : kuv | ≥ 23 |
| qw 355n | 355 | 490-630 : kuv | ≥ 20 |
| Q450 NQR 1 | 345 | 470-630 : kuv | ≥ 21 |
4. Daim ntawv thov:
1) SPA-H yog huab cua hlau rau kev ntim khoom, txiav thiab vuam. SPA-H feem ntau yog siv rau lub nkoj ntim khoom,
steel choj, nkoj thiab tso tsheb hlau luam los tiv thaiv atmospheric corrosion.
2) SPA-H weathering steel yog siv los tsim cov thawv. Kev lag luam tsheb thauj mus los muaj keeb kwm ntau dua
50 xyoo nyob rau hauv lub ntiaj teb no. 30 xyoo dhau los, kuv lub teb chaws lub thawv thauj khoom tseem khoob. Txij li thaum kev hloov kho thiab qhib, kuv lub teb chaws
kev tsim kho qhov chaw nres nkoj thiab lub thawv thauj khoom tau txuas ntxiv txhim kho. Tshwj xeeb tshaj yog nyob rau xyoo tas los no, cov zej zog thoob ntiaj teb tau ntsib
qhov xwm txheej ntawm "ib lub thawv nyuaj nrhiav.
5. Corrosion kuj txoj cai:
Thaum cov hlau raug tshav ntuj thiab cua, nws cov corrosion kuj tseem ceeb tshwj xeeb. Tom qab ntxiv phosphorus, tooj liab, chromium,
npib tsib xee thiab lwm yam kab kawm rau cov hlau, cov yeeb yaj kiab uas muaj zog thiab muaj zog tiv thaiv yuav raug tsim los ntawm cov khoom siv tooj liab,
tuaj yeem ua lub luag haujlwm tiv thaiv.
6. Daim duab:
7. Kev xa khoom thiab ntim khoom thauj khoom:
8. Pob:
9. Yam qib (Steel Plate):
B480GNQR, Q450NQR1, 09CuPCrNi-A, SPA-H, Q550NQR1, 09CUP, COR-TEN, cortenA, corten-B; 05CuPCrNi B450NQ B800NQ;
Q235NH, Q295NH, Q295GNHJ, Q295GNH, Q345GNHJ, Q345GNHJ, Q345GNH, Q310GNHJ, Q310GNHJ, Q355NH, 460NH, Q460NH;
集装箱板Q295GNHJ, Q345GNHLJ, Q345GNHJ;
焊接结构用耐候钢 16CuCr, 12MnCuCr, 15MnCuCr, 15MnCuCr, 15MnCuCr-QT；16MnR(HIC), 08Cu, 16MnCu, St37-3Cu3, CL, A5B.A,C2M(en)
10CrMoAL, 16CuCr, 12MnCuCr, 15MnCuCr, 15MnCuCr-QT, 09CuPCrNi, SMA400(AW,BW,CW),A588,A570, SMA400(AP,BP,CP), SMA490(CAW),
SMA490(AP,BP,CP), SMA570W,SMA570P,Fe235W,Fe355W,WR50B,WR50C,Q345R(HIC),Q235NH(16CuCr),Q275NH,12MnCuCr,Q355NH,15
Q460NH, 15MnCuCr-QT.
