Cov khoom siv qib P265GH yog dab tsi?
P265GH yog ib qho qis- alloy steel uas tau teev tseg hauv European tus qauv (EN 10028-2) thiab yog tsim los rau siab - qhov kub thiab txias ib puag ncig. Nyob rau hauv nws lub npe, "P" sawv cev rau cov hlab ntsha siab, "265" qhia tias qhov tsawg kawg nkaus tawm lub zog ntawm chav tsev kub yog 265 MPa, thiab "GH" qhia tias nws haum rau qhov kub thiab txias (G yog cov ntawv luv rau "siab kub" hauv German, thiab H yog "heat resistant").
Lub zog ntawm P265gh steel yog dab tsi?
Tensile zog: 410-530 MPa
Lub zog tawm los: Ntau dua lossis sib npaug ntawm 265 MPa
Elongation (L₀=5.65√S₀): Ntau dua lossis sib npaug li 24%
Lub zog cuam tshuam (20 degree): Ntau dua lossis sib npaug rau 40J
Qhov kub ntawm P265GH yog dab tsi?
P265GH yog European tus qauv qib siab ntawm cov hlab ntsha steel phaj, muaj peev xwm ua haujlwm ntev -lub sijhawm ua haujlwm kub ntawm 300℃-}350℃thiab lub sijhawm luv tiv taus kub ntawm 400 degree. Nws tswj cov khoom ruaj khov txawm tias nyob rau qhov kub thiab txias, ua rau nws haum rau cov khoom xws li boiler superheaters.
p 265g vs 355g
| Khoom | Cov txheej txheem | P265GH | P355GH | Qhov txawv tseem ceeb |
|---|---|---|---|---|
| Chemical Composition (Tsev muaj nuj nqis) | Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.20% | Tsawg dua lossis sib npaug li 0.18% | P355GH muajme ntsis qis carbonrau kev txhim kho weldability thiab toughness. |
| Manganese (Mn) | 0.80–1.40% | 1.00–1.60% | P355GH muajntau manganesetxhim khu lub zog. | |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025% | Tsawg dua lossis sib npaug li 0.025% | Cov kev txwv nruj zoo sib xws 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 0.015% | Ob leeg muaj sulfur tsawg rau txo impurities. | |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.40% | Tsawg dua lossis sib npaug li 0.60% | P355GH tso cai rau silicon siab dua me ntsis. | |
| Mechanical Properties | Yield zog (ReH) | Ntau dua lossis sib npaug li 265 MPa | Ntau dua lossis sib npaug li 355 MPa | P355GH muaj zog heev, nrog rau siab yield point. |
| Tensile zog (Rm) | 410-530 MPa | 490-630 MPa | P355GH 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 lossis sib npaug li 20% (rau thickness Tsawg dua lossis sib npaug li 16 hli) | P265GH muajme ntsis zoo dua ductility; P355GH tseem ceeb rau lub zog. | |
| Impact Toughness | Kev ntsuas kub | Feem ntau 0℃lossis 20℃(raws li tus qauv) | Ib yam li P265GH | Ob leeg xav tau zoo toughness, tab sis P355GH tej zaum yuav muajkev cai nruj duavim muaj zog dua. |
| Yam tsawg kawg nkaus Impact Zog (KV) | Ntau tshaj lossis sib npaug rau 27 J (ntawm qhov ntsuas kub) | Ntau dua lossis sib npaug li 27 J lossis siab dua (nyob ntawm qhov tuab) | P355GH yuav xav tausiab dua toughnesslos them rau nws lub zog. | |
| Kev kho cua sov | Cov kev coj ua | Normalized (N) lossis normalized dov | Normalized (N) los yog quenched thiab tempered (yog tias xav tau) | P355GH yogyuav tau txais kev kho cua sov ntxivkom ua tiav nws lub zog siab dua. |
| Daim ntawv thov | Kev siv yam | Boilers, siab hlab ntsha, thiab kub exchangers ntawmnruab nrab kub thiab siab. | Siab dua -siab tshuab,tuab- cov hlab ntsa, thiab daim ntawv thov xav taumuaj zog duantawm qhov kub thiab txias. | P355GH siv qhov twgsiab dua mechanical loadsxav tau. |
| Weldability | Yooj yim ntawm vuam | Zoo nrog cov txheej txheem tsim nyog | Zoo, tab sis yuav xav taupreheating los yog tom qab -weld heat treatmentvim muaj carbon ntau dua - sib npaug. | P355GH lub zog siab dua yuav xav tauceev faj dua kev siv vuam. |
P265GH yeeb nkab Hoobkas
