P235GH steel qib yog dab tsi?
P235GH yog lub siab -kub kev ua tau zoo alloy steel yeeb nkab, German siab -kub yam ntxwv steel.
P235GH alloy steel seamless kav feem ntau yog tsim los siv hluav taws xob arc rauv thiab oxygen sab saum toj - tshuab converters. Rau cov kev xav tau zoo dua, kev kho sab nraud, lub tshuab nqus tsev induction rauv smelting, ob chav nqus smelting, electroslag remelting, kev kho lub tshuab nqus tsev, thiab kev kho cua sov yog ua haujlwm.
P235GH, EN10216-2 seamless steel kav rau kev siv siab yog tsim rau kev tsim cov hlab ntsha siab thiab cov khoom siv. Piv nrog rau cov hlau zoo tib yam, P235GH alloy steel muaj zog dua thiab toughness, zoo dua txias dabtsi yog khoov thiab vuam kev ua tau zoo, tshuaj muaj zog, biocompatibility, lub cev muaj zog, thiab kev ua haujlwm.
Dab tsi yog P235GH yeeb nkab sib npaug rau ASTM cov khoom?
Sib npaug Astm Khoom yogA285 Qib C. Cov khoom siv P235GH Phaj yog cov khoom siv European tshwj xeeb, uas feem ntau yog siv hauv cov khoom siv hluav taws xob, boilers, thiab cov hlab ntsha siab.
Qhov txawv ntawm P235GH thiab P265GH yog dab tsi?
| Yam ntxwv | P235GH | P265GH | Qhov txawv tseem ceeb |
|---|---|---|---|
| Tshuaj muaj pes tsawg leeg(Tus nqi zoo) | |||
| - Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.16% | Tsawg dua lossis sib npaug li 0.20% | P265GH tso cai rau cov ntsiab lus carbon ntau dua kom muaj zog ntxiv. |
| - Manganese (Mn) | 0.60–1.20% | 1.00–1.50% | P265GH muaj ntau dua manganese cov ntsiab lus, txhim kho hardenability thiab lub zog. |
| - Phosphorus (P) / Sulfur (S) | Tsawg dua lossis sib npaug li 0.025% / Tsawg dua lossis sib npaug li 0.015% | Tsawg dua lossis sib npaug li 0.025% / Tsawg dua lossis sib npaug li 0.015% | Ob leeg muaj tib qhov txwv nruj kom ntseeg tau tias weldability thiab toughness. |
| - Lwm Yam | Silicon (Si) Tsawg dua los yog sib npaug rau 0.40%, yeem micro- alloying ntsiab | Ib yam li P235GH | Qhov sib txawv feem ntau yog nyob rau hauv C / Mn kev hloov kho. |
| Mechanical Properties | |||
| - Yield Strength (ReH) | Ntau dua lossis sib npaug li 235 MPa | Ntau dua lossis sib npaug li 265 MPa | Core sib txawv: P265GH muaj zog ntau dua rau siab - kev siv siab. |
| - Tensile zog (Rm) | 360-480 MPa | 410-570 MPa | P265GH muaj lub zog tensile ntau dua. |
| - Kev ncua ntev tom qab tawg (A%) | Ntau dua lossis sib npaug li 22% (gauge ntev 80mm) | Ntau dua lossis sib npaug li 20% (gauge ntev 80mm) | P235GH muaj qhov ductility zoo dua me ntsis, haum rau kev tsim - cov ntawv thov hnyav. |
| Mechanical Performance Yam ntxwv | |||
| - Toughness | Zoo, tshwj xeeb tshaj yog nyob rau ntawm qhov kub thiab txias ("H" txhais tau tias lav toughness ntawm siab / chav tsev kub). | Piv rau P235GH, ntsib cov cuab yeej siv siab toughness. | Ob leeg yuav tsum muaj kev ntsuam xyuas qhov cuam tshuam, haum rau qis - qhov kub thiab txias ib puag ncig dynamic load. |
| - Weldability | Zoo heev, vim muaj cov pa roj carbon tsawg thiab nruj P / S tswj. | Zoo, tab sis carbon sib npaug (CEV) yog me ntsis siab dua P235GH. | P265GH tej zaum yuav tsum tau preheating/post-kev kho cua sov kom tsis txhob vuam tawg. |
| Tej kev siv | Tsawg-rau- nruab nrab siab boilers, atmospheric cia tanks, piping systems. | High-siab boilers, siab hlab ntsha, siab-kub/siab- siab pipelines. | P265GH yog qhov tsim nyog rau cov xwm txheej nrog kev tsim qauv siab dua lossis kub. |
p235gh tshuaj muaj pes tsawg leeg
Cov ntsiab lus tseem ceeb: C Tsawg dua lossis sib npaug 0.16%, Si Less dua lossis sib npaug 0.35%, Mn 0.60% -1.20%, P Tsawg dua lossis sib npaug 0.025%, S Tsawg dua lossis sib npaug 0.010%, N Tsawg dua lossis sib npaug 0.012%.
Cov ntsiab lus alloying: Cr Tsawg dua lossis sib npaug ntawm 0.3%, Cu Tsawg dua lossis sib npaug rau 0.3%, Mo Tsawg dua lossis sib npaug rau 0.08%, thiab tag nrho cov ntsiab lus ntawm Cr + Cu + Mo + Ni Tsawg dua lossis sib npaug li 0.70%, kom ntseeg tau tias cov khoom ruaj khov ntawm cov hlau.
p235gh cov khoom siv:
Qhov ceev kwv yees li 7.85 g / cm³, melting point kwv yees li 1500 degree, qis thermal expansion coefficient (kwv yees li 13.2 × 10⁻⁶ /℃ntawm 20-550 degree), zoo heev seem stability ntawm qhov kub thiab txias.
P235GH siab siab pipeline ntawm boiler Hoobkas
