p265g s355j 2
Kev sib piv tshuaj lom neeg
| Lub ntsiab | P265GH (EN 10028-2) | S355J2 (EN 10025-2) | Qhov txawv tseem ceeb |
|---|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.20% | Tsawg dua lossis sib npaug li 0.22% | S355J2 tso cai rau cov pa roj carbon ntau dua kom muaj zog ntxiv. |
| Manganese (Mn) | 0.80–1.40% | Tsawg dua lossis sib npaug li 1.60% | S355J2 yuav muaj ntau dua Mn los txhim kho lub zog thiab hardenability. |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025% | Tsawg dua lossis sib npaug li 0.025% | Zoo sib xws cov kev txwv siab tshaj plaws rau ob qho tib si. |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015% (Qib B nrog tswj S) | Tsawg dua lossis sib npaug li 0.025% (qib tus qauv) | P265GH muajstricter sulfur tswjrau cov khoom siv siab. |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.40% | Tsawg dua lossis sib npaug li 0.55% | S355J2 tso cai rau silicon siab dua me ntsis. |
| Ntxiv Alloys | Tej zaum yuav muaj kab Ni, Cr, Mo, Nb, V, Ti | Tej zaum yuav muaj kab Ni, Cr, Mo, Cu (rau atmospheric corrosion kuj) | S355J2 tuaj yeem suav nrogtooj liab rau corrosion kuj; P265GH tsom rau purity rau siab tuav. |
Mechanical Properties Sib piv
| Khoom | P265GH (EN 10028-2) | S355J2 (EN 10025-2) | Qhov txawv tseem ceeb |
|---|---|---|---|
| Yield zog (ReH) | Ntau dua lossis sib npaug li 265 MPa (rau thickness Tsawg dua lossis sib npaug li 16 hli) | Ntau dua lossis sib npaug li 355 MPa (rau thickness Tsawg dua lossis sib npaug li 16 hli) | S355J2 muaj zog heev, tsim rau cov khoom siv thauj khoom. |
| Tensile zog (Rm) | 410-530 MPa | 470-630 MPa | S355J2 muaj ib tugsiab zog tensile ntau yam. |
| Elongation (A5) | Ntau dua lossis sib npaug li 22% (rau thickness Tsawg dua lossis sib npaug li 16 hli) | Ntau dua los yog sib npaug rau 22% (rau thickness Tsawg dua los yog sib npaug rau 16 hli nyob rau hauv longitudinal kev taw qhia) | Zoo sib xws elongation, tab sis S355J2 tej zaum yuav muaj kev taw qhia. |
| Impact Toughness (KV) | Ntau tshaj lossis sib npaug rau 27 J ntawm 0℃lossis 20℃(raws li tau teev tseg) | Ntau dua lossis sib npaug li 27 J ntawm -20 degree(J2 qib qhialow -kub toughness) | S355J2 muajsuperior qis -kub kev ua haujlwmvim nws lub npe J2. |
Kev ua tau zoo ntxiv & Kev sib piv kev thov
| Yam | P265GH | S355J2 | Qhov txawv tseem ceeb |
|---|---|---|---|
| Kev kho cua sov | Feem ntau muabnormalized (N)los yog normalized dov. | Feem ntau muab rau hauvkub- dov los yog normalized mob; tuaj yeem quenched thiab tempered rau ntau zog. | S355J2 muabyooj yooj yim hauv kev kho cua sovrau cov khoom tsim nyog. |
| Weldability | Zoo nrog cov txheej txheem tsim nyog; Low carbon equivalent (CEV). | Zoo, tab sis yuav xav taupreheatingrau cov ntu tuab vim muaj cov pa roj carbon ntau dua. | Ob leeg yog weldable, tab sis S355J2 lub zog siab dua yuav xav tauceev faj dua kev siv vuam. |
| Tej kev siv | Cov hlab ntsha siab, boilers, heat exchangers, thiab piping systems. | Cov khoom siv, txuas hniav, cov tsev, thiab cov khoom siv tshuab. | P265GH yog rauceev ceev; S355J2 yog rauload-cov kabmob. |
| Kub Resistance | Haum rausiab kub(txog ~ 400℃hauv qee kis). | Tsim los rauambient mus rau nruab nrab kub; tsis yog rau siab -siab thermal kev pab. | P265GH ua tau zoo hauvsiab -kub siab ib puag ncig; S355J2 yog optimized raustructural integrity nyob rau hauv qis temps. |
| Standards Focus | Cov cuab yeej siv siab ruaj ntseg(EN 10028-2). | Kev ua tau zoo ntawm cov qauv(EN 10025-2). | Cov kev xav sib txawv: P265GH ua qhov tseem ceebleak{0}}tightness thiab creep resistance; S355J2 tsom raulub zog thiab toughness. |
P265GH Superheater Tube Hoobkas
