1. Qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg (Core Feature)
S355J0 wb
High phosphorus (P) tsim: 0.06–0.15% P yog tshwj xeeb ntxiv los txhawb kev tsim patina ntom.
Tsawg carbon, nrog Cu, Cr, Ni rau huab cua tsis kam.
Optimized rau ceev, ruaj khov xeb txheej nyob rau hauv industrial cua.
Ordinary weathering steels (Q355NH, Q235NH, S355J0W)
Tsawg phosphorus (P ≤ 0.035%), tsis muaj siab-P txhim kho.
Qeb yooj yim alloy system, qeeb patina tsim.
Corten A/ASTM A242
Tsawg P, nruab nrab Cr-Cu, tsom rau qhov dav dav atmospheric corrosion.
Tsis muaj high-P nyhuv rau ceev patina densification.
Corten B / ASTM A588 Cov Lus Qhia
Siab nickel (Ni) cov ntsiab lus, zoo chloride kuj.
Tsim nyog rau thaj chaw ntug dej hiav txwv ntau dua li S355J0WP.
2. Qhov sib txawv ntawm Patina Formation Speed & Uniformity
S355J0 wb
Cov ntaub ntawv ruaj khov, tsaus xim av patinasai dua(3–6 lub hlis).
Cov xim sib txawv ntau dua, tsawg dua-theem thaum ntxov xeb tawm.
High P ua rau xeb txheej denser txij thaum pib.
Q355NH / Corten A
Patina siv6–12 lub hliskom ruaj khov.
Ntev ntev ci txiv kab ntxwv theem, pom tseeb dua dej ntws.
Xim ntau tsis sib xws thaum loj hlob.
3. Qhov sib txawv ntawm Corrosion Resistance Performance
S355J0 wb
Zoo heev hauv nroog & kev lag luam ib puag ncig (SO₂, acid nag).
Zoo nyob rau hauv cov huab cua nyob deb nroog.
Tsis muaj zog nyob rau hauv qhov chaw siab ntsev hiav txwv(tsis yog marine-qib).
Corten B / A588
Zoo ntsev tsis kam; txhim khu kev qha nyob rau hauv me me ntug dej hiav txwv cheeb tsam.
Me ntsis qis patina ceev tab sis zoo dua mus ntev stability.
Q355NH/Q235NH
Basic huab cua kev ua tau zoo, txo tag nrho corrosion kuj.
Tsis zoo tagnrho rau hnyav industrial lossis me me corrosive ib puag ncig.
4. Qhov sib txawv ntawm cov cuab yeej cuab tam
S355J0 wb
S355 qib: yield zog ≥ 355 MPa.
J0 toughness: ≥27 J ntawm 0 ° C.
Lub zog muaj zog, haum rau cov khoom siv thauj khoom.
qw 235n
Lub zog qis (≥235 MPa), rau qhov tsis tseem ceeb ntawm qhov hnyav.
S355J0W / Corten A / B
Lub zog zoo sib xws rau S355J0WP, tab sis sib txawv toughness thiab HAZ tus cwj pwm.
5. Qhov sib txawv ntawm Weldability
S355J0 wb
Zoo weldability, tab sis xav tau kev saib xyuasphosphorus embrittlementnyob rau hauv hnyav seem.
Preheat pom zoo rau cov phaj tuab lossis qis qis.
Q355NH / Corten A / B
Kev zam txim ntau dua hauv vuam; tsawg rhiab heev rau phosphorus nyhuv.
6. Qhov txawv ntawm daim ntawv thov Scope
S355J0 wb
Cov choj, steel qauv, ntim, cov khoom siv railway, cov tsev lag luam.
Zoo tshaj rauinland & industrial ib puag ncigxav tau ceev ruaj khov patina.
Corten B / A588
Kev xaiv zoo dua raume me ntug dej hiav txwv qauv, toj roob hauv pes facades.
Q355NH/Q235NH
Cov qauv sab nraum zoov dav dav, cov haujlwm raug nqi-rhiab heev.
