1. Nwayo Idantite & Creole
S355J0WP
Estanda:EN 10025-5(Ewopeyen dezagregasyon asye estriktirèl)
Klas siyifikasyon:
S=estriktirèl asye; 355=min fòs sede (Mwens pase oswa egal a 16 mm) Pi gwo pase oswa egal a 355 MPa
J0=Charpy V-tach enpak Pi gran pase oswa egal a 27 J at0 degre
W=rezistans move tan;P=gwo fosfò(karakteristik kle)
2. Konpozisyon chimik (Diferans kle)
S355J0WP kanpe deyò akKontwole segondè fosfò (P)ak balanse Cr-Cu-Ni, kontrèman ak lòt klas.
| Klas | C (%) | P (%) | Cr (%) | Cu (%) | Ni (%) | Kle Alloy Feature |
|---|---|---|---|---|---|---|
| S355J0WP | Mwens pase oswa egal a 0.12 | 0.06–0.15 | 0.30–1.25 | 0.25–0.55 | ~0.2–0.5 | Segondè P pou patina dans |
| Corten A (SMA400AW) | Mwens pase oswa egal a 0.19 | Mwens pase oswa egal a 0.04 | 0.40–0.65 | 0.25–0.55 | Mwens pase oswa egal a 0.65 | Ba P, modere Cr |
| Corten B (SMA400BW) | Mwens pase oswa egal a 0.19 | Mwens pase oswa egal a 0.04 | 0.40–0.80 | 0.25–0.55 | 0.65–1.25 | Pi wo Ni pou estabilite |
| Q355NH (GB) | Mwens pase oswa egal a 0.16 | Mwens pase oswa egal a 0.04 | 0.25–0.50 | 0.20–0.50 | Mwens pase oswa egal a 0.50 | Low P, dezagregasyon debaz |
| Q235NH (GB) | Mwens pase oswa egal a 0.18 | Mwens pase oswa egal a 0.04 | 0.20–0.40 | 0.15–0.40 | Mwens pase oswa egal a 0.40 | Fòs ki ba, dezagregasyon debaz |
| S355J0W | Mwens pase oswa egal a 0.16 | Mwens pase oswa egal a 0.03 | 0.40–0.80 | 0.25–0.55 | ~0.2–0.5 | Pa gen P segondè, dezagregasyon estanda |
3. Pwopriyete mekanik
S355J0WP ofrisegondè fòs + bon rezistans tanperati ki ba, pi bon pase Q235NH ak konparab ak Q355NH/Corten A.
| Klas | Sede fòs (mwens pase oswa egal a 16 mm) | Fòs rupture | Enpak (J0) |
|---|---|---|---|
| S355J0WP | Pi gran pase oswa egal a 355 MPa | 470-630 MPa | Pi gran pase oswa egal a 27 J @ 0 degre |
| Corten A | Pi gran pase oswa egal a 345 MPa | 485-620 MPa | Pi gran pase oswa egal a 27 J @ 0 degre |
| Corten B | Pi gran pase oswa egal a 345 MPa | 485-620 MPa | Pi gran pase oswa egal a 27 J @ 0 degre |
| Q355NH | Pi gran pase oswa egal a 355 MPa | 490-630 MPa | Pi gran pase oswa egal a 34 J @ 0 degre |
| Q235NH | Pi gran pase oswa egal a 235 MPa | 360-510 MPa | Pi gran pase oswa egal a 27 J @ 0 degre |
| S355J0W | Pi gran pase oswa egal a 355 MPa | 470-630 MPa | Pi gran pase oswa egal a 27 J @ 0 degre |
4. Weathering & Kowozyon Rezistans (Pi gwo Diferans)
S355J0WP asegondè fosfòkondwi apatine pwoteksyon pi dans, ki fòme pi rapid.
S355J0WP
P + Cu + Cr fòme yon patine sere, aderan nan3-6 mwa
Rezistans korozyon atmosferik:2–8× òdinè kabòn asye
Mwens ekoulman rouye; patina estabilize pounwa chokola mawonpi vit
Pi bon pèfòmans nan atmosfè endistriyèl/iben
Corten A
Pi ba P; patina fòme pi dousman (6-12 mwa)
Plis tandans fè rouye ki lach ak koule nan premye etap yo
Koulè final: wouj-mawon → mawon fonse
Corten B
Pi wo Ni; patine seplis inifòm ak ki estabalontèm
Pi bon rezistans espre sèl pase Corten A/S355J0WP
Koulè final: gri nwa-mawon
Q355NH/Q235NH
Dezagregasyon debaz; patina fòme dousman (6-18 mwa)
Mwens dans; gen plis tandans fè koulè inegal ak koule
Pi ba rezistans jeneral korozyon
S355J0W
Pa gen P segondè; konpòtman patina ki sanble ak Corten A, pi dousman pase S355J0WP
5. Patina Koulè & Evolisyon
S355J0WP
Sekans: ajan → jòn → zoranj →mawon fonse (ki estab nan 3-6 mwa)
Final: inifòmnwa chokola mawon; mwens varyasyon
Segondè P akselere densifikasyon patina
Corten A
Pi long etap klere zoranj; pi dousman fè nwa
Final: wouj-mawon → mawon fonse; plis tandans fè inegalite
Corten B
Plis gradyèl; finalgri-mawon; trè stab
Pi piti varyasyon koulè sou tan
Q355NH/Q235NH
Chanjman koulè ralanti, inegal; ka rete zoranj pi lontan
Final: patch mawon fonse
6. Weldability & Processing
S355J0WP
Ba C (mwens pase oswa egal a 0.12%); bon soudabilite
Prechofe rekòmande (80-120 degre) pou evite fann frèt
Bon koupe, koube, ak fòme
Corten A/B
Soudabilite menm jan an; prechofe menm ranje
Corten B yon ti kras pi bon rezistans nan zòn ki afekte chalè
Q355NH/Q235NH
Bon soudabilite; Q235NH pi fasil pou trete
